LV25200M Bi-CMOS Single chip Tuner Radio LV25200M tuner

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LV25200M Bi-CMOS Single chip Tuner Radio LV25200M tuner

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Ordering number ENA0976
LV25200M
Bi-CMOS
Single chip Tuner Radio
LV25200M tuner radio, which incorporates AM/FM Tuner, PLL, AM/FM Noise Canceller (NC), Stereodecoder (MPX) Multipath-noise Rejection Circuit (MRC) This enables development low-cost analog tuner OEM.
Functions
AM+FM-FE+IF+NC+MPX+MRC+PLL
Features
World-wide compatible tuners single tuner module enough supply world-wide compatible tuners. compatible with EURO, Japan bands while compatible with Weather-Band. With image cancel mixer incorporated MIX, external deleted. Compatible with RDS. fast locking. Self-contained type band variable filter incorporated Detects neighboring interfering station varies filter band, enabling superior selectivity characteristic. Auto alignment EEPROM necessary VCO, Null-voltage, Mute-on, Mute-ATT, SNC, HCC, Station detector, Gain sensitivity, compatible Reduced parts quantity Parts quantity reduced from conventional products Other functions noise canceller (genuine compatible)
registered trademark SANYO Electric Co., Ltd. SANYO Semiconductor's original format. addresses managed SANYO Semiconductor this format.
SANYO Semiconductor Co.,Ltd. products described contained herein are, with regard "standard application", intended general electronics equipment (home appliances, equipment, communication device, office equipment, industrial equipment etc.). products mentioned herein shall intended "special application" (medical equipment whose purpose sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level reliability directly threaten human lives case failure malfunction product cause harm human bodies, shall they grant guarantee thereof. should intend products applications outside standard applications customer considering such and/or outside scope intended standard applications, please consult with prior intended use. there consultation inquiry before intended use, customer shall solely responsible use. Specifications SANYO Semiconductor Co.,Ltd. products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer' products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer' products equipment.
D2607 20071004-S00024 No.A0976-1/45
LV25200M
Specifications
Maximum Ratings 25°C
Parameter Maximum supply voltage Symbol VCC_H VCC_L Maximum input current Maximum output current Allowable power dissipation Operating temperature Storage temperature Topr Tstg (Ta85°C) Conditions Ratings -0.3 +5.0 -0.3 +6.5 +150 Unit
Recommended Operating Conditions 25°C
Parameter Recommended supply voltage Symbol VCC_H VCC_L Operating supply voltage range VCcop_H VCcop_L Input High level voltage Input level voltage Input amplitude voltage Input pulse width Setup time Hold time Tsetup Thold Conditions Ratings 0.45 more 0.45 more 0.45 more Unit Vp-p
Package Dimensions
unit (typ) 3255
Reset Power
cop_H
17.2
14.0
cop_L
14.0 17.2
hmin
Voff
(0.83) 0.65 0.25
tPOR
0.15
3.0max
(2.7)
SANYO QFP80(14X14)
Recommended Operating Conditions Ta=25°C, GND=0V
Parameter Operating supply voltage Symbol Vcop_H Vcop_L Internal logic voltage Internal register hold voltage Internal register reset voltage Internal register reset power time VDD4 Vhmin Voff tPOR Conditions Design reference value Design reference value Design reference value Ratings VDD4 3000 Unit
No.A0976-2/45
LV25200M
Characteristics
Operating Characteristics Ta=25°C, VCC=8.0V, VDD=5.0V with designated measuring circuit outside standard. Except that this measurement made with socket [Yamaichi Denki Kogyo Co., Ltd. IC51-0644-807]. Audio filter: used characteristics] input (NO-Dummy)
Command IN3-1 IN3-2 IN3-3 IN3-4 IN3-5 Parameter Current drain Current drain Demodulation output demodulation output Channel balance Total harmonic distortion factor Total harmonic distortion (MONO) (ST) 1-10 suppression ratio 1-11 Muting attenuation 1-12 Muting attenuation 1-13 Muting attenuation 1-14 Separation Att-1 Att-2 Att-3 Separation THDFmmono THDFmmono MONO Vo-52 Symbol Icco-8V Icco-5V Vo-FM Conditions input mode I5+I66+I75+I76+I77 input mode I21+I27+I50 98.1MHz, 60dBV, 1kHz, 100%mod, 98.1MHz, 60dBV, 1kHz, 100%mod, 98.1MHz, 60dBV, 1kHz, pins 98.1MHz, 60dBV, 1kHz, 100%mod, 98.1MHz, 60dBV, 1kHz, 150%mod, 98.1MHz, 60dBV, 1kHz, 100%mod, 98.1MHz, 60dBV, 1kHz, 100%mod, pilot=10% 98.1MHz, 60dBV, 1kHz, 100%mod, mode, fm=1kHz, 98.1MHz, 60dBV, 1kHz, with V33=02V, attenuation 98.1MHz, 60dBV, 1kHz, with V33=02V, attenuation 98.1MHz, 60dBV, 1kHz, with V33=01V, attenuation 98.1MHz, 60dBV, mod=30%, pilot=10%, output ratio [IN3-5 D0-5] Separation control 1-15 Stereo level 1-16 Stereo level 1-17 Main distortion factor 1-18 output attenuation 1-19 output attenuation AttSNC ST-ON ST-OFF THD-Main Pilot demodulation which V39<0.5V established Pilot demodulation which V39>3.5V established 98.1MHz, 60dBV, L+R=90%, pilot=10%, 98.1MHz, 60dBV, L-R=90%, pilot=10%, V28=3V0.6V, standard single block 98.1MHz, 60dBV, 10kHz, L+R=90%, pilot=10%, V29=3V0.6V, standard single block 1-20 output attenuation 98.1MHz, 60dBV, 10kHz, L+R=90%, pilot=10%, V29=3V0.1V, standard single block 1-21 Input limiting voltage Vi-lim 98.1MHz, 60dBV, 30%mod, input which input reference output down -3dB, V42=0V, V29=0V, with MUTE=OFF 1-22 Muting sensitivity Vi-mute input level V42=1V, non-mod -14.5 -10.5 -6.5 -0.5 -11.2 mVrms mVrms 44.5 Unit
Signal noise ratio S/N-FM1-9 Signal noise ratio S/N-FM-ST
Continued next page. No.A0976-3/45
LV25200M
Continued from preceding page.
Command IN3-1 IN3-2 IN3-3 IN3-4 IN3-5 Parameter 1-23 sensitivity count sensitivity 1-24 S-meter output Symbol SD-senFM IF-countsens.FM VSMFM-1 VSMFM-2 VSMFM-3 VSMFM-4 VSMFM-5 1-24 S-meter output VSMFM-A2 VSMFM-A3 VSMFM-A4 VSMFM-A5 1-25 S-meter inclination standard 1-26 S-meter inclination standard 1-27 Mute drive output 1-28 Noise convergence VMUTE-60 NOISE-20 S-curve2 S-curve1 VSMFM-A1 Conditions input level which shifter-adj, non-mod count sensitivity input, non-mod input, output non-mod 10dBV, output non-mod 30dBV, output nonmod [IN3-2 D0-4] S-meter shift-adj 50dBV, output non-mod 80dBV, output non-mod input, output non-mod 10dBV, output non-mod 30dBV, output non-mod 50dBV, output non-mod 80dBV, output non-mod Holds [IN3-2 D0-4] data, which obtained deducting (VSMFM-2) from (VSMFM-3) Holds [IN3-2 D0-4] data, which obtained deducting (VSMFM-3) from (VSMFM-4) 60dBV, output output non-mod 60dBV.98.1MHz, 30%mod, input reference, output level input -20dBV, MUTE=OFF(42pin=GND) 1-29 N-AGC input VNAGC 98.1MHz, non-mod, input level which becomes 0.6V more 1-30 W-AGC input VWAGC 98.1MHz, non-mod, =1.0V applied (Keyed on), input level which becomes 0.6V more 1-31 Image obstruction ratio-1 1-32 Image obstruction ratio-2 bandwidth BW-mute1 Removal amount 108.1M +21.4MHz Removal amount -21.4MHz 98.1MHz, non-mod, 50dBV, Bandwidth which turned bandwidth BW-mute2 98.1MHz, non-mod, 50dBV, Bandwidth which turned 1-33 Conversion gain A.V. 98.1MHz, 60dBV, non-mod, FECF output mVrms 0.15 1.45 0.85 3.05 1.51 1.78 0.85 0.45 1.85 0.75 Unit
Continued next page.
No.A0976-4/45
LV25200M
Filter characteristics] input
Command IN3-1 IN3-2 IN3-3 IN3-4 IN3-5 Parameter variable filter gain-narrow band Symbol FIL-G-N Conditions 70dBV, (450kHz) output non-mod, After adjustment, through BW/G adjustment. Narrow-Fix MODE variable filter FIL-BW-N output monitor. Confirm more level down ±25kHz point with reference center frequency 450kHz. -3dB bandwidth. Narrow-Fix MODE variable filter FIL-BW-W 54-AC output monitor. Confirm level down exceeding ±80kHz point with reference center frequency 450kHz. -3dB bandwidth. Wide-Fix MODE Unit
block] input (48pin), S-meter input (40pin)
Command IN3-1 IN3-2 IN3-3 IN3-4 IN3-5 Parameter gate time Symbol GATE Conditions input, pulse cycle=1kHz, 38pin=2V applied, pulse width=1s, 100mVp-o pulse input (after MVCO adjustment) noise sensitivity SN-DETOUT input (pin 48), 38pin=2V applied, measure pulse input level which noise canceller starts operation, pulse cycle=1kHz, pulse width=1s noise sensitivity SN-Vsm S-meter (AC) input (pin 40), 38pin=0V applied, measure pulse input level which noise canceller starts operation, pulse cycle=1kHz, pulse width=1s gate time GATE(1) S-meter (AC) input (pin 40), pulse cycle=1kHz, pulse width=1s, measurement 38pin=1.5 noise sensitivity S-meter (AC) input (pin 40), measure pulse input level which noise canceller starts operation, pulse cycle=1kHz, pulse width=1s mVp-o mVp-o mVp-o Unit
[Multipath-noise rejection circuit] input (pin
Command IN3-1 IN3-2 IN3-3 IN3-4 IN3-5 Parameter output operation level Symbol VMRC MRC-ON Conditions voltage when applied (AG5) level when 39=2.6V, f=70kHz mVrms 2.76 2.96 3.16 Unit
No.A0976-5/45
LV25200M
characteristics] AMANT input
Command IN3-1 IN3-2 IN3-3 IN3-4 IN3-5 Parameter Practical sensitivity Detection output AGC-F.O.M Symbol S/N-30 Vo-AM VAGC-FOM Conditions 1MHz, 30dBV, fm=1kHz, 30%mod, 1MHz, 74dBV, fm=1kHz, 30%mod, 1MHz, 74dBV, output reference, input width which output decreases 10dB, Signal-to-noise ratio Total harmonic distortion ratio Total harmonic distortion ratio output attenuation S-meter output VSMAMDC-1 VSMAMDC-2 VSMAMDC-3 S-meter output VSMAMAC-1 VSMAMAC-2 5-10 Wide band sensitivity 5-11 sensitivity SD-senAM 1MHz, input level which turned THD-AM-2 S/N-AM THD-AM-1 1MHz, 74dBV, fm=1kHz, 30%mod 1MHz, 74dBV, fm=1kHz, 80%mod 1MHz, 120dBV, fm=1kHz, 80%mod 1MHz, 74dBV, fm=4kHz, 30%mod, V29=3V0.6V, 25pin input, 38pin output 1MHz, 30dBV, non-mod, 38pin output 1MHz, 130dBV, non-mod, 38pin output input, 40pin output 1MHz, 74dBV, non-mod, 40pin output W-AGCsen1 1.4MHz, input V48=0.7V 0.75 2.85 54.5 mVrms Unit
Function
front-end block
Image rejection Mixer Double balance Mixer diode drive output Keyed adjustment Differential amplifier Wide sensitivity setting Narrow sensitivity setting Local oscillator Local divider Local divider 160MHz 260MHz 1/10, 1/8, 1/6,
block
Limiter Amplifier stages S-meter shifter S-meter output (DC/AC) Multipath detector (dedicated S-meter) Quadrature detector preamplifier (Audio mute) output Variable bandwidth control adj-5bit BW/Gain adj-5bit Gain adj-3bit (for setting filter) Vnull adj-5bit, adj-4bit 450kHz
Continued next page.
No.A0976-6/45
LV25200M
Continued from preceding page.
Soft mute setting Mute attenuation setting counter buffer circuits) counter buffer activation level) setting output (active-high) (also used circuits) output Driver out, non-muting) Station Detector Gain 10.7MHz -0.5dB -25dB
Block (back tuner)
Double balance mixer amplifier detector Narrow Wide diode drive output S-meter output counter buffer counter buffer activation level) setting output (active-high) Detector output frequency adjusting (Low-cut, De-emphasis) 450kHz
High-Pass-Filter (1st-order) Delay circuit Low-Pass-Filter (4th order) Noise-AGC (Sensitivity:2 Bit-control) Pilot signal compensation Noise sensitivity setting Modulation index
Noise canceller Gate-Time Noise canceller Level
(Free-Run Frequency:6 Bit-control) Level following pilot canceller Automatic stereo/mono switching oscillator stop mode) Forced monaural Stereo indicator (active-low) Anti-birdie filter (f=114kHz, 190kHz) (stereo noise control) (high-cut control) Separation setting steps step adj.) 304kHz
(Multipath-noise Rejection Circuit)
Noise Amplifier Gain (sensitivity setting) Level-Shifter driving Time constant control circuit step step
No.A0976-7/45
LV25200M
Function
FM-ANT-D FM-RF-AGC (FE) AM-MIX-IN2 OSC-VCC AM/FM-OSC AM/FM-OSC PLL-LPF CPAM CPFM ST/SD, monitor PLL-TEST Sep.-ADJ. (Analog) (X'tal) X'tal-OUT X'tal-IN (X'tal) MPX-L-OUT MPX-R-OUT (Digital) MPX-PCO1 MPX-PCO2 (Digital) NC-Gate- monitor MPX-PLL-IN capacity Noise-Sens. Noise-AGC (Main) MRC-OUT Vsm2 (Sub) Function name Block Common -PLL -X'tal X'tal -MPX -MPX Pin-No. MRC-AC-IN Mute-Drive QD-Cap. QD-Cap. Vref 2.7V IF-Det-OUT NC-IN Mod.-Index (Analog) Interfering signal detected RDS-OUT PLL-TEST Filter AM-IFAGC (load setting) Pilot-Det/AM-LC IF-AGC AM-W-AGC AM-RF-AGC (BYPASS) AM-IF-IN AM-IN-IN2 FM-IF-IN (BYPASS) FM-IF-IN AM-2nd-MIX-IN AM-RF-AGC 1st-IF-OUT AM-MIX2-OUT Vref 4.9V RF-DAC1 AM-2nd-MIX-IN (BYPASS) RF-DAC2 IF-IN(BIAS) FM-1st-IF-IN AM-ANT-D PLL-TEST N-AGC-IN MIX-OUT MIX-OUT (8V) AM-MIX-IN FM-MIX-IN FM-MIX-IN Function name Block Common -FIL MPX/AM Common
No.A0976-8/45
LV25200M
Block Diagram
No.A0976-9/45
LV25200M
Discription
Unit (Resistance: Capacitance:
Function Antenna Damping Drive Discription Antenna damping current flows when voltage becomes VCC-Vbe. Internal Equivalent Circuit
voltage. Voltage=Hi (around with OFF. voltage lowers when level inserted into circuit. applied voltage VCCVbe.
FE.GND FM/AM FM/AM dedicated
GND(F.E.) (VCO.)
Continued next page.
No.A0976-10/45
LV25200M
Continued from preceding page.
Function Tuning voltage output output filter formed with pins this case, pass filter formed with internal impedance (100k) external capacity. Charge pump Simultaneous filters (pins possible through mode changeover. this case, internal impedance (100k) short-circuited. Charge pump filter formed with pins (Pins left OPEN) Discription
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
regulator output (4V)
AM/FM STEREO indicator Monitor
STEREO indicator reception: Low: STEREO High: MONO SEEK: AM/FM ON=High OFF=Low output output from (for information output). monitor IN3-5 D6=H) Saw-tooth wave MPX-VCO frequency output, which monitored adjustment (Adjust with IN3-5 D0-5.)
Separation adjustment
input level sub-decoder varied through control. (The output level MONO MAIN remains unchanged.)
Continued next page.
No.A0976-11/45
LV25200M
Continued from preceding page.
Function N.C, MPX, PLL-GND high level during serial data input (D1) LV25200M serial data output (DO). Discription
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
Input serial data transfer from controller LV25200M
Clock synchronization with data during serial data input (DI) LV25200M serial data output (DO)
Output serial data transferred from LV25200M controller
X'tal-OSC-OUT
X'tal-OSC dedicated Connect X'tal oscillator 20.5MHz between pins
X'tal-OSC-IN
Connect capacitors, each 12pF, between pins GND.
X'tal-OSC dedicated
Continued next page.
No.A0976-12/45
LV25200M
Continued from preceding page.
Function output (LEFT) output (RIGHT) output Output impedance changed over with de-Emphasis changeover (IN3-4 D20) Low=3.3k High=5k (The figure right shows case 5k.) (50/75s changeover with external capacity 0.015F) Discription
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
VCC2 (5V) control input
Digital system With input voltage, attenuation (L-R) Decode controlled. Decrease Separation. noise felt Stereo mode reduced. (Threshold controlled with 5Bit.)
control input
With input voltage, attenuation high pass component controlled. weak input, high pass reduce noise feeling. Same control FM/AM characteristics changed over automatically between modes.) (Threshold controlled with 5Bit.)
Phase-Comparator
NC-Gate Trigger-OUT Normal: High (VDD potential) Gate: (0V) Note) Monitor output made unless setting Pilot-Cancel (PICAN=OFF).
Continued next page. No.A0976-13/45
LV25200M
Continued from preceding page.
Function MPX-PLL input Discription formed with internal resistance eternal capacity formed subtracting above passage signal from Composite signal. Supply MPX-PLL circuit
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
capacitor
With external capacity, High-Cut frequency characteristics set. value internal resistance changed over AM/FM mode: mode: R35=30k mode: R35=100k
Noise detection sensitivity
With noise sensitivity setting medium electric field (about 50dB). Then, with AGC-Adj carry setting weak field 30dB).
AM/FM S-meter (DC)
Current drive type S-meter output
Eliminate component external capacity
AM/FM S-meter (AC)
Leaves component (Pin noise extraction multipath noise extraction)
Continued next page.
No.A0976-14/45
LV25200M
Continued from preceding page.
Function output (for Control) Discription Time constant Multipath-Noise Detector determined with following: during discharge Iconst during charge Iconst changed over with 2Bit (MRC-Time-Constant)
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
input
From AC-S-meter (pin 40), enter component. Amp-Gain, frequency characteristics determined with C41, (R41+1k [internal resistance]) (internal resistance). Amp-Gain controlled with 2Bit.
Mute Drive
MUTE time constant determined follows Attack time TA=10k (R1) Release time TR=50k (R2) Noise convergence adjustment MUTE function MUTE turned when shortcircuited with GND.
Null voltage compared with 2.7V
Continued next page.
No.A0976-15/45
LV25200M
Continued from preceding page.
Function capacity Discription quadrature detection capacity
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
Vreg (2.7V)
2.7V regulator
FM/AM
AM/FM detection output Output impedance impedance mode mode
Noise canceller input
Noise Canceller Input Input impedance
Continued next page.
No.A0976-16/45
LV25200M
Continued from preceding page.
Function INDEX Discription detection output level output. smoothing capacitor. (Used control band variable filter)
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
(5V) Analog system Undesire over-100kHz detection output noise level output. smoothing capacitor. (Used control band variable filter)
detection output that passed through Mute AMP. This output affected time constant muting.
TEST
Test
Continued next page.
No.A0976-17/45
LV25200M
Continued from preceding page.
Function TEST band variable filter output) IN3-1 Monitor IF_FIL band variable filter output monitor output) Discription
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
IFAGCBYPASS
voltage smoothing capacitor
TR1; Time constant changeover Seek switch diode; 2.2F Discharging diode reception Time constant depends external composition pins Seek Time constant 57pin (C57)
Pilot
Frequency characteristics unnecessary voice band 100Hz less changed produce clear sound mode. characteristic; Fc=1/(2 *2.5K*C56) Pilot Det; Insertion between causes forced MONO mode. C56, 0.47F more recommended.
W-AGC
W-AGC pickup incorporated
Continued next page.
No.A0976-18/45
LV25200M
Continued from preceding page.
Function RFAGC BYPASS Discription rectifier capacitor Determination distortion ratio during low-frequency modulation Increase C64; Distortion improved Response slow Decrease C64; Distortion worse Response quick
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
rectifier capacitor Determination distortion ratio during low-frequency modulation Increase C64; Distortion improved Response slow Decrease C64; Distortion worse Response quick
450kHz input Input impedance=2k
input input
10.7MHz 450kHz (10.7MHz) S-meter voltage
AM/FM OUTPUT
Output impedance=330
Continued next page.
No.A0976-19/45
LV25200M
Continued from preceding page.
Function Discription coil connected output must connected (VCC).
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
Vref 4.9V
4.9V regulator
input pick
input N-AGC pickup Input impedance
DAC1
8bit
DAC2
8bit
FM/AM
10.7M FM/AM Input impedance=330
Continued next page.
No.A0976-20/45
LV25200M
Continued from preceding page.
output Function antenna damping diode drive I73=6mA damping current Discription
Unit (Resistance: Capacitance:
Internal Equivalent Circuit
N-AGC
N-AGC pickup incorporated
FM/AM
FM/AM (common)
(8V) input Input impedance=10k
W-AGC pick
input W-AGC pickup Input impedance=10k
No.A0976-21/45
LV25200M
FM/AM level Diagram
No.A0976-22/45
LV25200M
Serial Data Timing
Chip enable Clock <<CL stopped level
Input data Output data
Internal data latch
<<CL stopped level
Internal data latch
Parameter Data setup time Data hold time Clock level time Clock level time wait time setup time hold time Data latch change time Data output time
Symbol
Conditions
0.45 0.45 0.45 0.45 0.45 0.45 0.45
unit
0.45 Varies depending pullup resistance
No.A0976-23/45
LV25200M
Serial Data Method
This Sanyo Audio serial format. Data made with (Computer Control Bus). LV25200M 8-bit address type CCB.
mode Address 32-bit data input Control data input (serial data input) mode. setting 32-bit data input Control data input (serial data input) mode, tuner 32-bit data input with sub-address Output data (serial data output) mode Output data corresponding clock amount. bits Description Control data input (serial data input) mode. setting
mode determination
First Data IN1/2
First Data
Serial data input (IN1/IN2/IN3) tSU, tHD, tES, tEL, tEH, 0.45s 0.45s
Internal data
Serial data output (OUT) tSU, tHD, tES, tEL, 0.45s tDC, 0.2s (*1)
(*2) AD13 AD11 AD10 (*2)
(*1) open drain pin, that data change time varies depending pull-up resistance substrate capacity. (*2) Normally, keep OPEN state.
No.A0976-24/45
LV25200M
specification setting
dividing ratio control Dividing ratio 10-division 8-division 6-division 4-division
count reset IFcount start
Program-CTR stop Program-CTR normal operation
Address Code
D1-10
D1-11
D1-12
D1-13
D1-14
D1-15
D1-16
D1-17
D1-18
D1-19
D1-20
D1-21
D1-22
D1-23
D1-24
D1-25
D1-26
D1-27
D1-28
D1-29
D1-30
D1-31
D1-0
D1-1
D1-2
D1-3
D1-4
D1-5
D1-6
D1-7
D1-8
D1-9
WEATHER
DIV_SW3
MODE1
MODE2
AM/FM
SEEK1
SEEK2
Initial data power
Setting Program-CTR divisions (272 65535 divisions) 272-division 500-division 1000-division 2000-division 21845-division 43690-division 65535-division
Reference frequency setting 100kHz 50kHz 25kHz 12.5kHz 6.25kHz 3.125kHz 3.125kHz 10kHz 5kHz 1kHz
AM/FM filter changeover MODE1 MODE2 AM/FM SEEK1 SEEK2 filter filter Tuner mode changeover SEEK1 SEEK2 IFBC output STOP SEEK
ratio control AM/FM/WB WEATHER DIV_SW3 Dividing ratio 2-division 3-division 1-division 1-division
Select Weather Band
Don't care
No.A0976-25/45
LV25200M
Dead zone control AM-SD-SPEED Normal fast Normal Normal Dead zone Charge pump control Normal Low-level
Address Code
D2-10
D2-11
D2-12
D2-13
D2-14
D2-15
D2-16
D2-17
D2-18
D2-19
D2-20
D2-21
D2-22
D2-23
D2-24
D2-25
D2-26
D2-27
D2-28
D2-29
D2-30
D2-31
D2-0
D2-1
D2-2
D2-3
D2-4
D2-5 X_SW_0
D2-6 X_SW_1
D2-7 X_SW_2
D2-8 SDSPEED
D2-9
AMAGC_ON
FMAGC_ON
TEST0
TEST1
TEST2
PDC0
PDC1
Initial data power
(10)
(11)
(12)
(15)
(16)
(17)
(19)
(22)
(23)
(13)
(14)
(18)
(20)
(21)
internal signal port Control data Input Output Normally, count input sensitivity X'tal High(+390Hz) 20.5MHz (center value) (-350Hz) Normal Worse
test mode Normally, TEST0=0 TEST1=0 TEST2=0
High impedance Charge pump operation (unlocked) Charge pump operation (normal) count stop count normal operation
control data control data Open state (PIN13) state (not used) when unlocked end-AD end-UC (See below) Open end-AD end-UC (See below)
Unlock detection changeover detection width Stop ±0.5s Detection output Open output directly extended extended
count measuring time setting Frequency measurement Measurement time Wait time CTP=0 CTP=1 Frequency measurement mode cycle cycle cycles cycles
No.A0976-26/45
LV25200M
IN3-1 tuner setting Address 69h, Subaddress[
Address Code
D31-0 D31-1 D31-2 D31-3 D31-4 D31-5 D31-6 D31-7
Address Code
D31-10 D31-11 D31-12 D31-13 D31-14 D31-15 D31-16 D31-17 D31-18 D31-19 D31-20 D31-21 D31-22 D31-23 D31-24 D31-25 D31-26 D31-27 D31-28 D31-29 D31-30 D31-31 D31-8 D31-9
Initial data power
(24)
(25)
(26)
(27)
(30)
(65)
(28)
(29)
Internal monitor changeover IF-Filter
MSLOP Mute_D (steep inclination) Mute_D (gentle inclination)
Filter-Fix_SW Filter-Mode Variable Narrow-Fix Wide-Fix Dont Care
000000000 100000000 010000000 110000000 001000000 101000000 011000000 111000000 000100000
010111111 110111111 001111111 101111111 011111111 111111111
0.3V 7.1V
ANT- 000000000 100000000 010000000 110000000 001000000 101000000 011000000 111000000 000100000
010111111 110111111 001111111 101111111 011111111 111111111
0.3V 7.1V
Test-PAD-1 VSM_SHIFTER FM-Mute-ON-Adj NC_GT(DACOUT) SNC_DAC ARAG(H) HCC_DAC SD_ADJ Mute_ATT(DACOUT2) Mute-ANG Test-PAD-2 W_AGC N_AGC A_IFGAIN QDP_ADJ
TEST Normal Test-Mode
Band variable filter Narrow/wide (Max) value control Wide Cont Narrow Cont
(40k)
(220k)
(80k)
(150k)
Test-PAD-3 F_IFGAIN NULL_VOL AFC_BW(TSOUT=-2VBE) AM_RFAGC(S) KEYD_AGC
No.A0976-27/45
LV25200M
IN3-2 tuner setting2 Address 69h, Subaddress[
Address Code
Address Code
D32-10
D32-11
D32-12
D32-13
D32-14
D32-15
D32-16
D32-17
D32-18
D32-19
D32-20
D32-21
D32-22
D32-23
D32-24
D32-25
D32-26
D32-27
D32-28
D32-29
D32-30
D32-31
Initial data power
S-Meter Shift(TSOUT) 00000 177A 10000 01000 11000 00100 10100 01100 11100 01011 11011 00111 10111 01111 11111 221A
D32-0
D32-1
(31)
D32-2
D32-3
Mute-ON-Adj. stop 00000 0.135 10000 01000 11000 00100 10100 01100
D32-4
10011 01011 11011 00111 10111 01111 11111
D32-5
D32-6
(32)
D32-7
D32-8
Mute-ATT. Gate-Time 000000 100000 010000 110000 001000 101000 011000
D32-9
(34)
(35)
(37)
(65)
(33)
(36)
Weak input Mute changeover (Mute-ANG)
Tuner mode Normal Tuner-OFF
FM-IF-Gain Gain 0000 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 1111
0.14
100111 010111 110111 001111 101111 011111 111111
1.89
FM/AM Adjust SEEK) NC-AGC threshold voltage setting reception) 00000 0.25 10000 01000 11000 00100 10100 01100 11100 01011 11011 00111 10111 01111 11111 2.65
No.A0976-28/45
LV25200M
IN3-3 tuner setting2 Address 69h, Subaddress[
Address Code
Address Code
D33-10
D33-11
D33-12
D33-13
D33-14
D33-15
D33-16
D33-17
D33-18
D33-19
D33-20
D33-21
D33-22
D33-23
D33-24
D33-25
D33-26
D33-27
D33-28
D33-29
D33-30
D33-31
D33-0
D33-1
D33-2
D33-3
D33-4
D33-5
D33-6
D33-7
D33-8
D33-9
Initial data power
(42)
(65)
(38)
(39)
(40)
(41)
(43)
(44)
(45)
FM/AM W-AGC Sensitivity 0.14 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 2.57
Keyed-AGC /AM-IF-Gain 0000 0.14 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 1111
Vref 2.7V Null Voltage 00000 0.87 10000 01000 11000 00100 10100 01100
Little High High
10011 01011 11011 00111 10111 01111 11111
Mute-ATT-SW/AM-Vsm-Shift Low(Steep inclination) High(Gentle inclination)
FM/AM N-AGC Sensitivity 0000 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 1111
detection band width setting FM-SEEK) Band variable filter start point setting reception) 0000 0.54 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 1111 2.19
P-ADJ 0000 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 1111
0.83
1.39
No.A0976-29/45
LV25200M
IN3-4 tuner setting2 Address 69h, Subaddress[ Pi-Can (Pilot Cancel Level Control) Center (AM-NC=OFF (same above) High (same above) AM-NC=ON)
Noise-AGC Limit Limit
Address Code
Address Code
D34-10
D34-11
D34-12
D34-13
D34-14
D34-15
D34-16
D34-17
D34-18
D34-19
D34-20
D34-21
D34-22
D34-23
D34-24
D34-25
D34-26
D34-27
D34-28
D34-29
D34-30
D34-31
D34-0
D34-1
D34-2
D34-3
D34-4
D34-5
D34-6
D34-7
D34-8
D34-9
Initial data power
(47)
(48)
(53)
(65)
(46)
(49)
(50)
(51) (52)
(54)
(55) (56) (57)
DAC/(AM-RF-AGC) threshold (gentle inclination side) 00000 0.07(1.35) 01000 11000 00100 10100 01100 11100 01011 11011 00111 10111 01111 11111 1.15(2.46)
inclination
NC-forced application point changeover
De-emphasis
AC-S meter load changeover
Force MONO Normal Forced MONO
Noise-Sens setting Easy detect Difficult detect
Separation control 000000 Level Max. 100000 010000 110000 001000 101000 011000 111000 010111 110111 001111 101111 011111 111111 Level Min.
FM/AM DAC. 00000 10000 01000 11000 00100 10100 01100 11100
01011 11011 00111 10111 01111 11111
Noise-AGC Threshold voltage forced application OFF(Normal) ON(controlled with SD-ADJ-DAC)
No.A0976-30/45
LV25200M
IN3-5 tuner setting2 Address 69h, Subaddress[
Address Code
Address Code
D35-10
D35-11
D35-12
D35-13
D35-14
D35-15
D35-16
D35-17
D35-18
D35-19
D35-20
D35-21
D35-22
D35-23
D35-24
D35-25
D35-26
D35-27
D35-28
D35-29
D35-30
D35-31
D35-0
D35-1
D35-2
D35-3
D35-4
D35-5
D35-6
D35-7
D35-8
D35-9
Initial data power
(61)
(65)
(58)
(59) (60)
(62)
(63)
(64)
During measurement:
Sensitivity High Time constant (Attack: Release Time) Short Long
(Free-Run Freq. Control) 000000 Freq=Low 100000 010000 110000 001000 101000 011000 111000 010111 110111 001111 101111 011111 11111 Freq=High
"Filter-Wide fixed" Filter-initial adjustment sensitivity/AM-RF-AGC D12-14 Gain Gain adjustment threshold D15-19 adjustment (steep inclination side) 0000 0.37 D20-24 BW/G BW/G adjustment 1000 0100 1100 "Gain adjustment" "BW/G adjustment" adjustment" 0010 D24. D19. 1010 Left Shift BW(W)G Gain 0110 01111 01111 1110 10111 10111 0001 Typical 1001 0101 01001 01001 1101 Gain High 10001 10001 0011 Typical Typical 1011 10000 10000 0111 01000 01000 1111 2.04
10110 01110 11110
Right Shift
10110 01110 11110
BW(N)G
No.A0976-31/45
LV25200M
Control Standard: Reference Value
S-meter shifter
D32-0 D32-5 D32-10 D32-11 D32-16 D32-12 D32-13 D32-14 D32-17 D32-6 D32-7 D32-8 D32-1 D32-2 D32-3 D32-18 Function D32-4 Function D32-9 D32-15 Function Function
Vsm(DC)=1.85V: +8dB Vsm(DC)=1.85V: Vsm(DC)=1.85V: -7dB
2-1. Mute-ON-adj
2-2. stop
D32-5 D32-6 D32-7 D32-8 Function D32-9
-3dB Limitting sens: -6dB -3dB Limitting sens: -3dB Limitting sens: +10dB
(DC) STOP=0.3V
(DC) STOP=2.3V
(DC) STOP=4.2V
3-1. Mute-ATT
3-2. Gate-Time
D32-10 D32-11 D32-12 D32-13 D32-14 D32-15 Function
MUTE attenuation: -0.5dB MUTE attenuation: -13dB MUTE attenuation: -25dB
INPUT=60dBV: 1000s
INPUT=60dBV: 350s
INPUT=60dBV: 200s
weak input Mute changeover Mute-ON-adj:0000)
INPUT=-20dBV V42: 1.45V INPUT=-20dBV V42: 2.0V INPUT=-20dBV V42: 2.7V
No.A0976-32/45
LV25200M
5-1. Adjust
D32-19 D32-24 D33-0 D33-4 D33-5 D33-6 D33-1 D33-2 D32-25 D32-26 D32-20 D32-21 D32-22 D32-23 D32-27 Function D33-3 Function D33-7 Function Function
5-2. Adjust
D32-19 D32-20 D32-21 D32-22 D32-23 Function
level: -19dB level: level: +20dB
level: -13dB
level:
level: +25dB
6-1. IF-Gain
450kHz limit AMP: -6dB 450kHz limit AMP: 450kHz limit AMP: +6dB
7-1. W-AGC
7-2. W-AGC
D33-0 D33-1 D33-2 Function D33-3
W-AGC level: -2dB W-AGC level: W-AGC level: +2dB
N-AGC level: -9.5dB
N-AGC level:
W-AGC level: +6dB
8-1. N-AGC
8-2. N-AGC
D33-4 D33-5 D33-6 Function D33-7
N-AGC level: -9dB N-AGC level: N-AGC level: +6dB
N-AGC level: -10dB
N-AGC level:
N-AGC level: +6.5dB
No.A0976-33/45
LV25200M
9-1. Keyed-AGC
D33-10 D33-8 D33-25 D34-6 D34-11 D35-27 D34-12 D34-13 D34-14 D34-7 D34-8 D34-9 D33-9 D33-11 D33-26 D34-10 Function D34-15 Function D35-28 Function Function Function
9-2. IF-Gain
D33-10 D33-8 D33-9 D33-11 Function
Keyed 0.12V
450kHz Gain: -7.5dB
Keyed 1.2V
450kHz Gain:
Keyed 2.1V
450kHz Gain: -4.5dB
10-1. Mute-ATT-SW
10-2. Vsm-shifter
D33-25 D33-26 Function
MUTE attenuation V42=1V: -6dB MUTE attenuation V42=1V: -8dB MUTE attenuation V42=1V: -13dB MUTE attenuation V42=1V: -19dB
Vsm(DC)=1.5V 30dBV Vsm(DC)=1.5V 38dBV Vsm(DC)=1.5V 45dBV Vsm(DC)=1.5V 55dBV
11-1.
SEPARATION=15dB INPUT: -26dB SEPARATION=15dB INPUT: -6dB SEPARATION=15dB INPUT: SEPARATION=15dB INPUT: +5dB SEPARATION=15dB INPUT: +11dB
12-1.
12-2.
D34-11 D34-12 D34-13 D34-14 D34-15 Function
10kHz mod, -6dB: 0.4V 10kHz mod, -6dB: 0.85V 10kHz mod, -6dB: 1.3V
4kHz mod, -6dB: 0.04V
4kHz mod, -6dB: 0.82V
4kHz mod, -6dB: 1.3V
13-1. Time constant
output current: 2.9A output current: 2.2A output current: 1.5A output current: 0.8A
No.A0976-34/45
LV25200M
Description Control Data
Control block/data Programmable divider data dividing ratio D1,OSC Description Data dividing ratio programmable divider. Binary value with dividing ratio determination General-purpose counter measurement start control Reference divider data Stop programmable divider Tuner mode changeover AM/FM Tuner mode changeover SEEK1, SEEK2 Count start Count reset Reference frequency (fref) selection data Reference frequency (kHz) 12.5 6.25 3.125 3.125 GT0,GT1 D1,D2 MODE1, buffer control output STOP SEEK MODE2 SEEK2 Dividing ratio 10-division 8-division 6-division 4-division GT0,GT1 Related data AM/FM D1,D2 AM/FM
General-purpose counter measurement start data
DVS=0: PLL-IN stopped (pulled-down) PLL-IN selected number divisions (N): 65536 Input frequency range: 270MHz details, refer "Programmable Divider Composition." AM/FM mode changeover 1=AM 0=FM Data determine mode tuner SEEK1
Continued next page.
No.A0976-35/45
LV25200M
Continued from preceding page.
Control block/data filter changeover MODE1,MODE2 Description Data select/changeover filter MODE1 dividing ratio control WEATHER DIV_SW3 MODE2 AM/FM SEEK1 SEEK2 filter don't care filter AM/FM Related data AM/FM SEEK1, SEEK2
Data dividing ratio reception AM/FM/WB WEATHER DIV_SW3 Dividing ratio 2-division 3-division 1-division 1-division
(10)
internal signal port Control data
Data designate port "Data" input port Select normally. output port Select test Select cases other than test.
(11)
X-TAL Fine adjustment data
Data detune reference frequency X'tal=20.5MHz when beat occurred Variable about 100Hz eight steps bits X'tal loaded with external capacity 3-bit (110) setting X'tal +390Hz +250Hz +110Hz X'tal (center value) -100Hz -190Hz -280Hz -350Hz
(12)
AMSD speedup SDSPEED
Data speed rise time mode "SDSPEED"=0: NORMAL mode speedup mode Data control output Open state (PIN13) state (not used)
(13)
Control data IL0,IL1
Open when I/O-1 I/O-2 pins designated output ports. Note) with X'tal STOP does change) (14) AM/FM-AGC Control data FMAGC_ON AMAGC_ON (15) count sensitivity deterioration control data Data make each effective "FMAGC_ON"=0: NORMAL mode Forced mode "AMAGC_ON"=0: NORMAL mode Forced mode
Decrease input sensitivity with CTC=1. attempt change bits during count (except EVR).
Continued next page.
No.A0976-36/45
LV25200M
Continued from preceding page.
(16) Control block/data General-purpose counter Control data GT0, Description Data determine general-purpose counter measurement time (frequency mode) number cycles (cycle mode). Frequency measurement Measurement time 32ms 64ms Wait time CTP=0 CTP=1 Cycle measurement mode cycle cycle cycles cycles Related data
CTP=0: General-purpose counter input stopped counter reset (CTE=0) General-purpose counter input stopped wait time shortened counter reset (CTE=0) Except that Immediately after setting CTP=1, necessary wait counter start till general-purpose counter input biased. (17) control data DT0, Data determine output pin. end-UC (*1) Open end-UC (*1) when unlocked
end-UC: Count over general-purpose counter
Start
(I-1 change)
CE:Hi
(18)
Unlock detection data UL0,
Data select phase error detection width order check locking. Phase error exceeding detection width shown table below determined indicate unlock. unlock, detection (DO) becomes Low. detection width Stop ±0.5s Detection output Open output directly extended extended
DT0,
Extension
Unlock output
(19) count operation control data (20) Sub-charge pump control data PDC0, PDC1 Data select general-purpose counter input (HCTR) CTS=1: HSTR selected HCTR pulled down Data control sub-charge pump PDC1 PDC0 Sub-charge pump state High impedance Charge pump operating (unlocked) Charge pump operating (normal) don't care) sub-charge pump output connected internally with gate. sub-charge pump (main charge pump) combined form fast lockup circuit. Except that this effective depending filter multiplier (lighter filter). UL0, UL1,
Continued next page.
No.A0976-37/45
LV25200M
Continued from preceding page.
(21) data DZ0, Control block/data Phase comparator control Description Data control dead band phase comparator (22) Charge pump control data Deadban mode Related data
power power reset Data charge pump output level (VSS level) forced manner. DLC=1: level Normal operation When control voltage (Vtune) deadlocked because stops oscillation this data sets charge pump output level Vtune VCC, enabling escape from deadlock state. Normal operation mode power power reset (23) test data TEST0 TEST1 TEST2 (24) (25) RF-DAC control D31-0 D31-8 Internal monitor changeover data D31-9 (26) (27) ANT-DAC control D31-10 D31-18 MSLOP Control changeover data D31-19 (28) Band variable filter control data D31-20 D31-25 Causes application control voltage tuning circuit (varactor). 9BIT Data change over MUTE curve inclination. MSLOP 1BIT Mute_D (steep inclination) Mute_D (gentle inclination) test data follows: TEST0=0 TEST1=0 TEST2=0 test data power power reset. Causes application control voltage tuning circuit (varactor). 9BIT Data changeover internal monitor. 1BIT
Narrow/wide band (MIN/MAX) data band variable filter Each 3bits narrow wide bands Band variable filter Narrow/wide band MIN/MAC control value Narrow Cont (40k) Wide Cont (220k) (150k)
(80k)
(29)
Band variable filter mode setting D31-26 D31-27
Data mode band variable filter. 2BIT Filter-Fix_SW Filter-Mode Variable Narrow-Fix Wide-Fix Dont Care
(30) (31) (32)
TEST select data D31-29 S-meter shifter control D32-0 D32-4 MUTE-ON-adj/ stop control D32-5 D32-9
Data select output circuit internal circuit Controls output value S-METER shifter circuit. 5BIT Controls MUTE-ON-adj characteristic. Controls sensitivity stop. 5BIT Controls MUTE-ATT characteristic. Controls width Gate-Time characteristic. 6BIT
(33)
MUTE-ATT/ Gate-Time control D32-10 D32-15
Continued next page. No.A0976-38/45
LV25200M
Continued from preceding page.
(34) Control block/data Weak input MUTE changeover D31-16 D31-18 (35) AM/FM SD-adj NC-AGC threshold voltage setting data D31-19 D32-23 (36) IF-Gain Gain control data D32-24 D32-27 (37) TUNER setting data D32-28 Controls Gain limiter AMP. Controls also Gain limiter mode similarly mode. 4BIT Data mode turn tuner. 1BIT Tuner mode (38) (39) (40) AM/FM WAGC setting data D33-0 D33-3 AM/FM NAGC setting data D33-4 D33-7 Keyed-AGC/ AM-IF-Gain setting data D33-8 D33-11 (41) detection bandwidth setting/band variable filter start point setting data D33-12 D33-15 (42) (43) (44) Null Voltage setting data D33-16 D33-20 QDP-ADJ setting data D33-21 D33-24 MUTE-ATT SW/AM S-meter shifter control D33-25 D33-26 Controls Null voltage. 5BIT Controls voltage. 4BIT Controls MUTE-ATT-SW characteristic. 2BIT Controls S-meter shifter circuit output value. Mute-ATT-SW/AM-Vsm-Shift (45) VREF2.7V control D33-27 D33-28 High (gengle inclination) (steep inclination) Normal operation Tuner-OFF Controls characteristic AM/FM. Sets threshold voltage NC-AGC. 5BIT Changes over weak input MUTE. 3BIT Description Related data
Data AM/FM WAGC sensitivity. 4BIT Data AM/FM NAGC sensitivity. 4BIT Controls Keyed-AGC sensitivity. Controls AM-IF-GAIN. 4BIT Used detection bandwidth FM-SEEK. Used start point band variable filter reception. 4BIT
Sets Vref2.7V output voltage target value. 2BIT Vref2.7V Little High High
(46) (47)
Separation control D34-0 D34-5 SNC/ AM-RF-AGC Threshold value (gentle inclination side) setting data D34-6 D34-10
Controls separation output level stereo mode. 6BIT Sets characteristic. Sets AM-RF-AGC (gentle inclination side) threshold voltage. 5BIT
(48) (49)
FM/AM setting data D34-11 D34-15 inclination setting data D34-16 D34-17
Sets characteristic 5BIT Sets inclination voltage (sets separation curve). 2BIT inclination
Continued next page.
No.A0976-39/45
LV25200M
Continued from preceding page.
(50) Control block/data Pilot cancel control D34-18 D34-19 2BIT Description Data control pilot cancel degree. Pi-Can (Pilot Cancel Level Control) (51) De-emphasis select data D34-20 Center (AM-NC=OFF) (same above) High (same above) (AM-NC=ON) Related data
Data select De-Emphasis constant output. 1BIT De-emphasis
(52)
Force NOMO setting data D34-21
Data force output MONO mode. 1BIT Normal Forced MONO
(53)
Noise-AGC Threshold voltage forced application data D34-23
Data change sensitivity applying Noise-AGC Threshold voltage forced manner. 1BIT Noise-AGC Threshold voltage forced application (Normal) ON(control with SD-ADJ-DAC)
(54)
Noise sensitivity setting data D34-24 D34-25
Controls noise detection sensitivity. Noise-Sens setting 2BIT Easy detect Difficult detect
(55)
S-meter Load changeover data D34-26
S-meter output (Vsm2_sub): Data change over output impedance (internal load resistance) 1BIT AC-S meter load changeover (7k) (3.5k)
(56)
Noise-AGC limit setting data D34-27
Data changeover limiter noise canceller. 1BIT Noise-AGC Limit (AGC easy effective) Limit (AGC difficult effective)
(57)
D34-28
function 1BIT Normal setting
(58) (59)
control data D35-0 D35-5 measurement D35-6
Data control MPX-VCO block free-run oscillation frequency 304kHz 6BIT MPX-VCO block free-run oscillation frequency During measurement: High 1BIT Data change function AM/FM mode 1BIT
(60)
changeover D35-6
(61)
Filter-Wide fixed sensitivity/ AM-RF-AGC Threshold value (steep inclination side) setting data D35-8 D35-11
Sets Filter-Wide fixed sensitivity. Sets AM-RF-AGC (steep inclination side) threshold voltage. 4BIT
(62)
Filter initial adjustment D35-12 D35-24
Data various initial settings filter 13BIT D12-14 D15-19 D20-24 Gain BW/G Gain adjustment adjustment BW/G adjustment
Continued next page.
No.A0976-40/45
LV25200M
Continued from preceding page.
(63) Control block/data Sensitivity Setting data D35-25 D35-26 Data sensitivity setting sensitivity 2BIT (64) Time constant setting data D35-27 D35-28 High Description Related data
time constant (Attack/Release Time) setting data 2BIT time constant (Attack: Release Time) Long Short
(65)
D31-29 D31-31 D32-29 D32-31 D33-29 D33-31 D34-29 D34-31
Sub-Code Address Each bits
Output Data (Serial Data Output) Composition
Address
First Data
IN-PORT
Control block/data port data data output mode becomes effective. state=Hi: =Low: Currently, only state) General-purpose counter binary data
U-CTR
Description Related data TEST-BIT (I/O-PORT)
port; Data latching state other pins become Latched when
Data latching content general-purpose counter (20-bit binary counter) becomes binary counter binary counter
CTS0 CTS1
Programmable Divider Composition
4bits PLLIN Swallow Counter Programmable Divider 12bits fvco/N ferf
fvco=ferf
number divisions 65535 Input frequency range [MHz]) PULL-IN Selected Stopped
input sensitivity shown here because inside closed.
No.A0976-41/45
LV25200M
Composition General-Purpose Counter
general-purpose counter consists 20-bit binary counters. count result read from through pin.
General-purpose counter (20-bit binary counter)
HCTR
(FIF)
4/8/32/64ms GT1,
C=FIF
basis data, measurement time frequency measurement using general-purpose counter selected from four types: 4,8,32,64 determining many pulses entered generalpurpose counter within these periods, frequency signal entered HCTR determined. data: Data determine general-purpose counter input (HCTR) state reset this counter (CTE=0) General-purpose counter input turned (pulled down) General-purpose counter input pulled down, wait time reduced When setting CTP=1, must first later than before count start (CTE=1). When counter used, CTP=0.
Frequency measurement mode Measurement time 32ms 64ms Wait time CTP=0 CTP=1
Counter Operation
Before count start with general-purpose counter, CTE=0 reset counter beforehand. general-purpose counter starts counting setting serial data CTE=1. Then, count result counter must read while CTE=1. (With CTE=0, general-purpose counter reset.) signal entered HCTR divided into half internally, transmitted general-purpose counter. Accordingly, count result general-purpose counter one-half value actual frequency entered HCTR
Frquency measurement time HCTR CTE=1 data
Wait time Measurement time
Input signal
No.A0976-42/45
LV25200M
integrating counter
CTE=1 Internal data latch (CTE) CTE=1 CTE=0
General-purpose counter Start end-UC (DO) CTE: General-purpose counter Reset General-purpose counter Start Restart with
(Integration) Restart Reset
Count
Count
During integrating counting, counts accumulated general-purpose counter. Take care allow overflow counter. Count value: FFFFFH (1,048,575) When serial data (IN1) re-transmitted while keeping CTE=1, general-purpose counter restarts measurement integrating count results added.
Phase Comparator/Charge Pump
Phase comparator/charge pump operation circuit block shown Fig. phase comparator compares phase difference reference frequency(fr) comparative frequency (fp) outputs phase difference components from charge pump.
Leak case strong input Phase Detector Charge Pump
Mixer
Reference Divider
Programmable Divider
Fig. circuit block
No.A0976-43/45
LV25200M
Output characteristics phase comparator/charge pump shown Fig. phase comparator outputs output that proportional phase difference between changing setting phase comparator dead zone mode, characteristics phase comparator changed. Namely, modes (DZA, DZB) turn both P-CH N-CH transistors charge pump case extremely small phase difference mode (DZD) output phase difference output case extremely small phase difference set. Fig. Phase comparator/charge pump characteristics
V[V] mode mode
V[V]
[ns]
[ns]
Dead Zone
Dead Zone(-)
V[V] mode mode
V[V]
[ns] Dead Zone0
[ns]
Dead Zone
Characteristics Dead Zone mode table below outlines characteristics each dead zone mode.
data Dead zone mode Charge pump phase difference (Pch/Nch) ON/ON ON/ON OFF/OFF Dead zone width (Reference data) (-15[ns]) (-8[ns]) (0[ns]) (+8[ns]) Remarks
No.A0976-44/45
LV25200M
Guideline cautions selecting Dead Zone mode Features each Dead Zone mode criteria selection described below: mode mode, correction signal output from charge pump even when phase difference agrees between reference frequency (fr) comparative frequency (fp), which advantageous obtaining high ratio with ease. other hand, side band reference frequency component occur, readily causing beats case strong input. This phenomenon occurring because loop reacts sensitively leak components through mixer, modulating VCO. Occurrence side band reference frequency component local oscillator also causes leakage reference components which tends worsen interference characteristics. mode mode characterized reduced voltage correction signal from mode though, similarly case mode, charge pump outputs correction signal even when phase difference agrees between reference frequency (fr) comparative frequency (fp). This mode features easier achievement high ratio than DZC/DZD improved beat interference resistances. mode mode, correction signal output from charge pump according phase difference between reference frequency (fr) comparative frequency (fp). Extremely small noise occur when phase difference around [ns]. this mode temperature (-30°C less) because ratio deteriorated. mode mode, correction signal output from charge pump according phase difference between reference frequency (fr) comparative frequency (fp). correction signal output when phase difference several [ns]. Accordingly, ratio becomes lower than other dead-zone modes, beat interference resistances improved.
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This catalog provides information December, 2007. Specifications information herein subject change without notice.
No.A0976-45/45

LV25200M Bi-CMOS Single chip Tuner Radio LV25200M tuner

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