LA1805 Monolithic Linear LA1805 Overview FM-IF Tun

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LA1805 Monolithic Linear LA1805 Overview FM-IF Tun

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Ordering number EN2887C
LA1805
Monolithic Linear
LA1805
Overview
FM-IF Tuner System Radio-Casette Recorders, Music Centers
LA1805 characteristics-improved version LA1810, with same assignment package those LA1810. Improvements made following point: Separation (35dB48dB) dependence freerunning frequency (Sep Characteristic page main distortion (0.8%0.45%). detection output (approximately increased). constants five external parts changed shown page
Functions
FM-IF: amp, quadrature detector, soft muting, tuning indicator. MPX: stereo decoder, stereo indicator, forced monaural, stop. amp, MIX, (with ALC), amp, detector, AGC, tuning indicator.
Features
functions contained single chip. Minimum number external parts required. On-chip muting function. High sensitivity. Less carrier leak MPX.
Specifications
Maximum Ratings Ta=25°C, specified Test Circuit.
Parameter Maximum supply voltage Maximum supply current Flow-in current (Indicator drive current) Flow-out current Allowable power dissipation Operating temperature Storage temperature Symbol ILED Topr Tstg Pins 3+20+21 Pins Ta70°C Conditions Pins Ratings +125 Unit
SANYO products described contained herein have specifications that handle applications that require extremely high levels reliability, such life-support systems, aircraft's control systems, other applications whose failure reasonably expected result serious physical and/or material damage. Consult with your SANYO representative nearest before using SANYO products described contained herein such applications. SANYO assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges, other parameters) listed products specifications SANYO products described contained herein.
80906 12506 12798HA (KT) D0994JN 4030MO N148YT, No.2887-1/14
LA1805
Operating Conditions Ta=25°C
Parameter Recommended operating voltage Operating voltage range Symbol Conditions Ratings Unit
Note: output level forms curve (LA1805) curve (LA1806). LA1805: curve (for band) LA1806: curve (for Japanese band). Your desired output level varying output resistance. Operating Characteristics Ta=25°C, VCC=4.5V, specified Test Circuit.
Parameter Symbol Conditions Ratings 0.45 0.45 input VIN=23dB, mod. VIN=80dB, mod. VIN=23dB, mod. VIN=80dB, mod. VIN=80dB, mod. VIN=100dB, mod. IL=1mA 0.45 14.5 Unit
characteristics (Mono): fc=10.7MHz, fm=1kHz] Quiescent current -3dB sensitivity Demodulation output Channel balance Total harmonic distortion Signal noise ratio sensitivity Separation Stereo distortion level level characteristics: fc=1000kHz, fm=1kHz] Quiescent current Demodulation output Signal noise ratio Total harmonic distortion sensitivity ICCO THD1 THD2 VLED ICCO -3dBL.S. C.B. input Referenced VIN=100dB, 100%, down VIN=100dB, 100% mod. VIN=100dB, 100% mod. VIN=100dB, 100% mod. VIN=100dB, 100% mod.
VLED IL=1mA characteristics (Stereo): fc=10.7MHz, fm=1kHz, L+R=90%, pilot=10%, VIN=100dB] (Main) VLED-on VLED-off
Note: fully careful dielectric breakdown. Package Dimensions unit 3067B
21.0
7.62
(3.25)
0.95
(0.71)
0.51min
1.78
0.48
SANYO DIP24S(300mil)
0.25
No.2887-2/14
LA1805
Equivalent Circuit Block Diagram
Post
Trig.
Stereo Indic. Drive
Pilot
Level Muting Phase Tuning Indic. Drive Decoder Stereo
Reg.
ILA01930
Test Circuit
input
0.047F
2200pF
560pF
39mH
0.047F
0.1F
2SK212 3.3F 3.3F
76kHz check
20pF
52pF
3.9k
1500pF
LA1805
0.047F Stereo indicator
6800pF
6800pF
VLED
0.047F
input
0.047F
muting
HW-6193 HW-6215 YT-30103 Polystyrene film capacitor Differs from application circuit where front used. (See Sample Application Circuit page 11.)
3.3k
3.3k BL-13
3.3k
3.3k BL-13
ILA01931
No.2887-3/14
LA1805
LA1805 Forced monaural mode. Figures show cause forced monaural mode entered. Connect through resistor 100k. (Turn Figure Connect through resistor 47k. (Turn Figure
LA1805 LA1805
100k
ILA01932 ILA01933
Figure Forced Monaural Mode Setting Method
Figure Forced Monaural Mode Setting Method
Free-running Frequency
Either above-mentioned causes forced monaural mode entered. this case, does stop operating. resistance decreased, internal bias will vary when turned This data shown Figure
Figure
Forced Monaural Mode Setting Resistance Free-Running Frequency
VCC=8V
ILA01934
Stop designed stop automatically mode. (when same potential) There available stopping mode. However, method shown right used stop mode, causing forced monaural mode entered.
LA1805
Make wiring short possible.
Figure
ILA01935
No.2887-4/14
LA1805
Free-running frequency measurement adjustment Either following methods used measure free-running frequency. Connect frequency counter through high input impedance amplifier. Connect connection point semifixed resistor connected fixed resistor frequency counter through resistor 240k greater.
LA1805 240k Figure
ILA01937
LA1805 counter Figure ILA01936
Figure
Measured Error,
counter
error changes with resistor value shown Figure
VCC=4.5V input 100dB Nonmodulation
ILA01938
Resistor Value,
When setting free-running frequency, following must noted. Apply 10.7MHz 100dB nonmodulation carrier input signal 76kHz±50Hz with tuning indicator lighted.
Figure
Separation,
Separation setting capacitor separation characteristic LA1805 alone input) differs from that antenna input with front end. This difference caused characteristics front ceramic filter. Shown right separation characteristic changes with separation setting capacitor value when LA1186N used front end. Referring this separation characteristic, choose optimum separation your model.
LA1186N
LA1805
Free-Running Frequency,
ILA01939
No.2887-5/14
LA1805
muting external resistor connected used vary muting level (Figure abnormal sound time side peak reception mode reduced weak signal muting.
Figure9
LA1186N+LA1805 Muting Characteristics
RM=910
Figure
LA1186N+LA1805 Attenuation Detuning Frequency
f=98MHz 400Hz -30% VIN=100dB Mute Mute
Noise, Output
Attenuation
Noise
-100
VCC=4.5V fc=98MHz fm=400Hz
ILA01940
Mute
Mute
-1000 -800 -600 -400 -200
1000
Input
Detuning Frequency,
ILA01941
following method used change sensitivity mode (Figure 11). data sensitivity setting resistance sensitivity shown Figure
LA1805
Figure
Sensitivity
fc=10.7MHz
Sensitivity
Figure Method Change Sensitivity Mode
ILA01942
Reference (R=open)
Resistance,
ILA01943
AM-FM selection mode entered with open shown Figure When made same potential terms mode entered. should noted that dynamic range narrowed whether potential lower higher than that
LA1805
Figure
(21pin)
ILA01944
noise appears detection output when tuning goes mode, connect capacitor across eliminate noise.
No.2887-6/14
LA1805
Characteristics
fc=10.7MHz fm=1kHz 75kHz dev.
Characteristics
fc=1MHz fm=1kHz
Total Harmonic Distortion,
LED-on
Noise, Output, Demodulation Output
Demodulation output
Noise, Detection Output
tput Detection
tput
Noise
Noise
-100
-100
Input
ILA01945
Input
ILA01946
Selectivity Characteristic
Fidelity Characteristics
Attenuation
Attenuation
Response
ILA01947
Detuning Frequency,
Modulation Frequency
ILA01948
Whistle Characteristics
Detectio kHz-30 output mod)
Reception Characteristics
Tracking each frequency
Sensitivity dBm, Interference Ratio
Detection Output, Whistle Output
interferen
istle
(2f1
Imag freq uenc inte rfere Usable sensitivity (1kHz-30% mod, N=20dB)
Max. sensitivity (1kHz-30% mod,
1000
t=20mV)
1400 1600 1800
-100 ILA01949
1200
Input
Receiving Frequency
ILA01950
No.2887-7/14
Total Harmonic Distortion,
2200pF
1kHz-30% Output 20mV const. C.F, SFU-450B
100%dBm input const. fc=1MHz
Total Harmonic Distortion,
LA1805
Characteristics
fc=10.7MHz fm=1kHz
Characteristics
Demodulation output (VIN=100dBm, mod)
Total Harmonic Distortion,
Detection Output
Detection Output
mod) Detection output
Max. sensitivity (output=20mV, mod)
sensitivity
-3dB L.S.
sensitivity
(VIN=100dBm, mod)
ILA01952
(100% mod)
ILA01951
Total Harmonic Distortion, Output
Demodulation outpu
input=100dB 1kHz-100%
fc=10.7MHz
fc=1MHz Detection output, input=60dB
1kHz-30% THD, input=100dB, z-30%
input=60dB, 1kHz-30%
input=60dB
THD, input=100dB
1kHz-100%
sensitivity
-3dB L.S., 1kHz-100%
Sensitivity
Sensitivity
input=100dB
N=20dB Sensitivity,
z-30%
Sensiti
vity
Output 20mV sensitivity, 1kHz-30%
Ambient Temperature,
ILA01954
Ambient Temperature,
ILA01953
Capture Range
Lamp Sensitivity
0.47
Pilot Modulation
Pilot Level
level
level
ILA01956
Capture Range
ILA01955
Supply Voltage,
input Nonmodulation
Separation,
f=1kHz 75kHz dev. input 100dB L+R=90%, pilot=10%
ILA01958
Supply Voltage,
ILA01957
Supply Voltage,
No.2887-8/14
Total Harmonic Distortion,
Output
Temperature Characteristics
Supply Voltage,
Temperature Characteristics
Supply voltage,
Total Harmonic Distortion,
fc=1MHz fm=1kHz
Sensitivity
Sensitivity
LA1805
f=1kHz 75kHz dev. input 100dB (10.7MHz) L+R=90%, pilot=10%
VCC=4.5V 75kHz dev. input 100dB L+R=90%, pilot=10%
Total Harmonic Distortion,
Separation,
mono stereo
main
ILA01959
Supply Voltage,
Frequency,
ILA01960
VCC=4.5V input 100dB L+R=90%, pilot=10% f=1kHz
Total Harmonic Distortion,
Total Harmonic Distortion,
VCC=4.5V 75kHz dev. input 100dB L+R=90%, pilot=10%
mono
main stere
Frequency,
ILA01961
Modulation, Dev.
ILA01962
Carrier Leak
monoral (75kHz dev) without de-emphasis 19kHz, 38kHz carrier leak
Free-Running Frequency Drift Characteristic
Free-Running Frequency Drift,
VCC=4.5V f=10.7MHz input 100dB Nonmodulation
Carrier Leak
38kHz carrier leak
stereo (pilot modulation) with de-emphasis 19kHz carrier leak
f=1kHz 75kHz dev. input 100dB mono output level
ILA01964
Characteristics
Noise Voltage, Detection Output
VCC=4.5V f=21MHz fm=1kHz
Supply Voltage,
ILA01963
Ambient Temperature,
Characteristics
VCC=4.5V f=21MHz fm=1kHz
Detection output (30% mod)
Total Harmonic Distortion,
Pin4 voltage,
Adjust that minimized.
ILA01965
-100
Input
Input
ILA01966
No.2887-9/14
LA1805
Characteristic
Interference Ratio Sensitivity voltage
Characteristics
Oscillation Voltage, VOSC
Usable sensitivity N=20dB)
nsitivity Max. =20m inte rfer
ILA01967
ILA01968
Receiving Frequency,
Receiving Frequency,
Band Test Circuit
dummy 0.047F
4700pF
10pF
0.047F
YT-30117 (Mitsumi), 2158-4095-319A (Sumida) HW-40184 (Mitsumi), 0237-1500 (Sumida)
LA1805
ILA01969
Characteristics
Total Harmonic Distortion,
Noise Output, Detection Output
fr=240kHz fm=1kHz
Detection
output
Characteristic
fr=240kHz fm=1kHz
Voltage,
LED-on
Input
Oscillation Voltage, VOSC
Characteristics
Sensitivity Interference Ratio
Usable nsitivity 20dB)
frequen Image erence interf
LED-on
240pF
57pF
0.047F
150pF
Max.
nsitivit
ILA01970
Input
ILA01971
Band Test Circuit
VOSC
-30dB
HH-50161 (Mitsumi) MA-7014 (Mitsumi)
LA1805
ILA01973
ILA01972
Receiving Frequency,
No.2887-10/14
LA1805
Sample Application Circuit: LA1186N+LA1805 FM/MW
4.5V
STEREO MONO 1500pF
100k
3.3F
3.3F
470pF 0.1F
LA1805
2200pF
3.9k
0.047F
18pF
0.047F
390pF
27pF
100k
0.022F 1000pF
100k
0.47F
30pF
15pF
LA1186N
0.047F
1000pF
18pF 1000pF
1000pF
Note constants parts changed from those LA1810.
STEREO MONO
6800pF 6800pF 0.047F
TN-10896 (Mitsumi) YT-30224 (Mitsumi) YT-30196 (Mitsumi) HW-6193 (Mitsumi) YT-40001 (Mitsumi) HW-6215 (Mitsumi) YT-30103 (Mitsumi)
ILA01974
No.2887-11/14
LA1805
Sample Printed Circuit Pattern (See Sample Application Circuit.)
10000pF
1000pF
1000pF
6800pF 6800pF
LA1186N 10000pF
30pF
1000pF
10000pF
0.047F
100k
18pF 15pF
0.47F
0.047F LA1805 2200pF
0.047F
3.3F
PVC22KTL
3.3F
0.1F
100F
(Cu-foiled area) 80120mm2
470pF
18pF
27pF
390pF
100k
3.9k
1500pF
ILA01975
LA1186N+LA1805 Over Characteristics
f=98MHz Detection output fm=1kHz, Total Harmonic Distortion,
LA1186N+LA1805 Over Characteristics
Detection Output, Noise Voltage
output 1kHz,
Noise voltage
100%
-100
Input Voltage
ILA01976
Input Voltage
ILA01977
Differences between LA1805 LA1806 Same assignment internal circuit (pin different shown below. curve opposite direction circuit which provided same band Japanese band.
LA1805 LA1806
100k (Upper-hetero)
100k
100k
100k
JAPAN (Lower-hetero)
ILA01978 ILA01979
LA1805 contains output load resistors (Output load resistance=6.8k)
LA1806, output load resistors connectedxternally. graph demodulation output (RR) shown below.
No.2887-12/14
LA1805
LA1806FM Characteristic
f=10.7MHz 1kHz-100%
Demodulation Output mVrms
ILA01980
External Load Resistance,
Coil Specifications antenna TN-10896 (Mitsumi)
22T+49T, 17T, L=260H, QO=330 (200) L=15H, QO=250 (150)
ILA01981
HW-6215 (Mitsumi) HW-6194 SFU-450B
HW-6193 (Mitsumi)
quadrature YT-30103 (Mitsumi)
180pF
ILA01982
QO=140, L=140H
ILA01983
QO=90, f=10.7MHz 82pF
ILA01984
HW-40184 (Mitsumi)
0237-1500 (Mitsumi)
QO28, L=1.31H
QO20, L=1.31H
ILA01985
YT-30117 (Mitsumi)
2158-4095-319A (Sumida)
QO=95, L=1.4H
QO40, L=1.4H
ILA01986
antenna HH-50161 (Mitsumi)
200T L=2.74mH, QO200
ILA01987
MA-7014 (Mitsumi)
L=220H, QO=130
ILA01988
No.2887-13/14
LA1805
Specifications SANYO products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer's products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer's products equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, semiconductor products fail with some probability. possible that these probabilistic failures could give rise accidents events that could endanger human lives, that could give rise smoke fire, that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO products(including technical data,services) described contained herein controlled under applicable local export control laws regulations, such products must exported without obtaining export license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written permission SANYO Electric Co., Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO product that intend use. Information (including circuit diagrams circuit parameters) herein example only guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information January, 2006. Specifications information herein subject change without notice.
No.2887-14/14

LA1805 Monolithic Linear LA1805 Overview FM-IF Tun

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