µPC1830 FILTER-CONTAINING VIDEO CHROMA, SYNCHRONIZING SIGNAL PROC

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µPC1830 FILTER-CONTAINING VIDEO CHROMA, SYNCHRONIZING SIGNAL PROC

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µPC1830
FILTER-CONTAINING VIDEO CHROMA, SYNCHRONIZING SIGNAL PROCESSING COMPATIBLE WITH NTSC/PAL SYSTEM
DESCRIPTION
µPC1830 filter-containing video chroma, synchronizing signal processing compatible with NTSC/ system. decoder which converts composite video separate video signals into brightness signal color difference signal outputs result, matrix which comprises independent brightness signal/color difference signal input pins integrated chip. Decoder output used drive converter; appropriate picture-in-picture screen signal processing multimedia boards.
FEATURES
Contains trap filter, band-pass filter, delay line, color difference output low-pass filter. Peripheral parts drastically reduced. power consumption Appropriate with digital boards because single power supply operation. control user adjustment pins Centralized control performed microcontroller. chip compatible with both NTSC systems Boards common NTSC systems easily constructed. input Supports composite separate video signal inputs. Demodulation ratio/demodulation angle change (matrix) Demodulation ratio/demodulation angle selected response NTSC system. Contains color difference tint control Fine adjustment demodulation axis made both NTSC systems.
ORDERING INFORMATION
Part Number Package 42-pin plastic shrink (375 mil)
µPC1830GT
information this document subject change without notice. Document S11146EJ4V0DS00 (4th edition) Date Published April 1998 CP(K) Printed Japan
mark
shows major revised points.
1994
µPC1830
SYSTEM BLOCK DIAGRAM
VIDEO CAPTURE SYSTEM BLOCK DIAGRAM
NTSC 3.58 4.43
Clamp pulse 8-bit µPC659A
lock clock generator 8-bit µPC659A
Divider
Digital video (RGB YUV) signal output
Composite video separate signal input
RGB/Color difference decoder µPC1830 8-bit µPC659A
µPC1830
BLOCK DIAGRAM
color control
Separate/ composite switch Separate chroma
CVBS
Contrast control
3.58/4.43 NTSC/PAL
Clamp pulse
Mode switch Sync. separate
Clamp
Separate/composite switch, amp. subcolor control
Filter adjust
3.58 MHz/4.43 VCXO,
output buffer
filter sync. detect
chroma trap
chroma
APC, killer detect, IDENT detect
R-Y, modulate
Contrast control
NTSC/PAL matrix
Separate/composite switch
Tint control
Killer
count
Delay
R-Y, output buffer
Amp. color control
wave detect
blanking pulse, killer output buffer
R-Y, input clamp
50/60
Killer detect
Color control
µPC1830
CONFIGURATION (Top View)
42-pin plastic shrink (375 mil)
µPC1830GT
filter filter filter Horizontal filter (synchronous section) 50/60 switch Power supply (synchronous section) Color killer output Blanking pulse output pulse output pulse output output output output (video section) input Power supply (video section) input input Color control Tint control
NTSC/PAL switch switch sync. detect filter Sync. separation input Contrast control Subcolor control Composite video signal input Power supply (chroma section) Separate chroma input (chroma section) filter adjustment filter Chroma filter input (4.43 MHz) input (3.58 MHz) output Color killer filter output output output Clamp pulse input
µPC1830
EQUIVALENT CIRCUIT DIAGRAMS
name filter
Equivalent circuit
Function descriptions Pins connecting oscillation filter. resonator, ceramic resonator both NTSC modes. Bias supplied from external resistor between pins
Horizontal filter
connecting filter horizontal detector.
(synchronous section)
Synchronous section ground.
µPC1830
name 50/60 switch Equivalent circuit Function descriptions Vertical frequency switch pin. When voltage less, vertical frequency changes when more,
Power supply (synchronous section)
Synchronous section power supply.
Color killer output
Color killer output pin.
Blanking pulse output
Horizontal blanking pulse output pin.
pulse output
pulse output
pulse output
pulse output pin.
output
signal output. level approx.
output
Decoder color difference signal output pins. level approx.
output
(video section)
Video section ground.
µPC1830
name input Equivalent circuit Function descriptions Matrix signal input pin. This also serves clamp pin. Input signal with coupling. level approx.
Power supply (video section) input
Video section power supply.
input
Matrix color difference signal input pins. These pins also serve clamp pins. Input signals with coupling. level approx. Output mode "pseud PAL".
Color control
color adjustment matrix circuit.
Tint control tint adjustment matrix circuit.
µPC1830
name Clamp pulse input Equivalent circuit Function descriptions Matrix clamp pulse input pin. Clamp operation performed more.
output
output
Matrix output pins. level approx. Sync. signal component, added Y-input pin), appears output pins.
output
Color killer filter
Filter connection color killer sync detector.
output
oscillator output pin. Connect this 3.58 oscillation filter 4.43 oscillation filter.
µPC1830
name input (3.58 MHz) Equivalent circuit Function descriptions input pins. Connect 3.58 oscillation filter between pins 4.43 oscillation filter between pins Switch input input suppressed response switch) voltage.
input (4.43 MHz)
0/60
60/0
Chroma filter
connecting filter chroma detector.
µPC1830
name adjustment filter Equivalent circuit Function descriptions connecting filter automatic adjustment loop.
filter
connecting filter detector.
(chroma section)
Chroma section ground.
Separate chroma input
Separate chroma signal input pin. This also serves separate composite switch input pin. voltage more, composite input mode entered.
Power supply (chroma section)
Chroma section power supply.
µPC1830
name Composite video signal input Equivalent circuit Function descriptions Composite video signal separate signal input pin. This also serves clamp pin. Input signal with coupling. level approx.
Subcolor control
Decoder color contrast adjustment pins.
Contrast control
Sync. separation input
Input sync. separation circuit.
µPC1830
name sync. detect filter Equivalent circuit Function descriptions connecting filter sync. detector.
switch
controlling input (pins switch. When voltage more, mode changes 3.58 mode; when less, 4.43 mode.
NTSC/PAL switch
controlling switch NTSC modes decoder matrix. following three combinations decoder matrix modes selected depending value voltage V42: When decoder matrix When decoder NTSC matrix NTSC When decoder NTSC matrix
µPC1830
BLOCK OPERATION Video Signal Processing Section
Input signal After coupling capacitor (0.22 µF), Vp-p composite video signal input composite video signal input (pin 36). Clamp circuit clamp circuit controls pedestal voltage level constant make reference voltage post-stage signal processing. Chroma trap circuit Eliminates chroma signal (NTSC system: approximately 3.58 MHz, system: approximately 4.43 MHz) from composite video signal extracts brightness signal. Separate/composite switching circuit Operates shown Table according voltage separate chroma input (pin 34). Table 5-1. Operation when Switching Separate/Composite Signals
Separate chroma input (pin voltage Less than higher Mode Brightness signal processing Without chroma trap With chroma trap input
separate input Composite video input
Input from separate chroma Input from chroma
Delay circuit Compensates delay between brightness signal chroma signal delaying brightness signal. Contrast adjustment circuit Adjusts amplitude brightness signal output from output (pin according voltage contrast control (pin 38). control characteristic shown Figure 5-1.
µPC1830
Figure 5-1. Contrast Control Characteristic NTSC mode
mVp-p stair step (composite) input
mode
mVp-p stair step (composite) input
output voltage (Vp-p)
output voltage (Vp-p)
Contrast control voltage
Contrast control voltage
Chroma Signal Processing Section
Input signal Composite video signal input After coupling capacitor (0.22 µF), Vp-p composite video signal input composite video signal input (pin 36). Separate chroma signal input After coupling capacitor (1000 pF), chroma signal whose burst signal amplitude mVp-p input separate chroma input (pin 34). Chroma circuit Separates chroma signal from composite video signal. Separate/composite switching circuit When potential separate chroma input (pin higher composite mode), switches input from chroma input chroma circuit output. Processing brightness signal this time switched that passes through chroma trap circuit. Operation when switching separate/composite signals shown Table 5-1. (Auto Color Control) amplification circuit Extracts burst signal, detects level smoothes voltage filter (pin external capacitor. This smoothed voltage controls color gain keep amplitude burst signal constant.
µPC1830
Subcolor control circuit According voltage subcolor control (pin 37), controls amplitude chroma signal output from amplification circuit after separating burst signal from adjusts amplitude color difference signal output from output (pin output (pin 14). This controls color density screen. control characteristic shown Figure 5-2. Figure 5-2. Subcolor Control Characteristic NTSC mode
Color (composite, burst: mVp-p) input
mode
Color (composite, burst: mVp-p) input
output voltage
output voltage
Subcolor control voltage
Subcolor control voltage
Chroma (Auto Phase Control) circuit Detects phase difference between burst signal extracted from chroma signal signal from fSCVCXO smoothes chroma filter (pin using capacitor. This smoothed voltage used control fSCVCXO oscillation frequency. Killer detection circuit Detects amplitude burst signal executes mute subcolor control circuit when there burst signal, preventing from outputting chroma signal avoid color noise. this case, output color killer output (pin driven high. color killer sensitivity determined time constant resistor capacitor connected color killer filter (pin 26). IDENT detection circuit Performs IDENT detection. With IDENT detection, NTSC signal (PAL signal NTSC mode) input mode, color killer turns chroma signal output. 3.58 MHz/4.43 VCXO, circuit Switches fSCVCO input between (for 3.58 MHz) (for 4.43 MHz) controlling voltage switching (pin (2.8 higher: 3.58 mode, below: 4.43 mode) perform oscillation 3.58 4.43 MHz. VCXO controlled voltage chroma filter (pin smoothed chroma circuit phase synchronized with input burst signal. circuit inverts phase signal demodulation axis every IDENT detection. (10) R-Y, demodulation circuit Performs demodulation using chroma signal output from circuit, demodulation axis signal demodulation axis signal output from fSCVCXO, multiplies 2.03.
µPC1830
Matrix Section
Input signal Brightness input signal After coupling capacitor (0.22 µF), brightness signal which Vp-p video part input input (pin 16). Color difference input signal After coupling capacitor (0.22 µF), Vp-p signals input input pins (pins 19). input clamp circuit Clamps signals when voltage clamp pulse input (pin higher. Input clamp pulse clamp pulse input (pin synchronization with burst section input signal shown Figure 5-3. application circuit example, adjust position clamp pulse DELAY (µPD4538B external variable resistor: clamp pulse width (µPD4538B external variable resistor: Figure 5-3. 22-Pin Input Clamp Pulse Waveform
Video signal Burst signal Composite video input
Clamp operates higher. 22-pin input clamp pulse
Amplification color control circuit Adjusts amplitude color difference signal input input (pin input (pin according voltage color control (pin 20). This controls color density screen. When using matrix, adjust color density mainly using this color control voltage subcolor control (pin (TYP.). control characteristic shown Figure 5-4.
µPC1830
Figure 5-4. Color Control Characteristic NTSC mode
mVp-p stair step input Tint control voltage:
mode
mVp-p stair step input Tint control voltage:
output voltage (Vp-p)
output voltage (Vp-p)
Color control voltage
Color control voltage
Tint control circuit Controls phase color difference signal whose amplitude adjusted color control circuit, range ±45° according voltage tint control (pin 21), adjusts tint screen. Table shows demodulation angle demodulation ratio each mode Figure shows control characteristic. Table 5-2. Demodulation Angle Demodulation Ratio when Tint Control (Pin Voltage (TYP.)
Mode NTSC Demodulation angle (R-Y) 105° (TYP.) (TYP.) Demodulation ratio (R-Y/B-Y) 0.75 (TYP.) 0.61 (TYP.)
Figure 5-5. Tint Control Characteristic NTSC mode
mVp-p stair step R-Y, input Tint control voltage: MAX.
mode
mVp-p stair step R-Y, input Tint control voltage: MAX.
demodulation angle (deg)
demodulation angle (deg)
Tint control voltage
Tint control voltage
µPC1830
demodulation circuit Demodulates using (R-Y)', (B-Y)' which color difference signal after tint adjustment following expression. demodulation expression: (G-Y) -0.51 (R-Y)' 0.19 (B-Y)' matrix circuit Adds brightness signal: each (R-Y)', (B-Y)' create signals.
Synchronizing Signal Processing Section
Input signal composite video signal brightness signal input synchronizing separate input (pin VP-P. Sync. separation circuit Separates sync. signal from composite video signal. slice level changed using external resistor: (see Figure 5-6, TYP. operation µPC1830 sync. separation circuit explained below. Figure equivalent circuit diagram µPC1830 sync. separation circuit. Figure 5-6. µPC1830 Sync. Separate Input Section Equivalent Circuit
Approx. (when A733
Figure 5-6, slice level sync. separation determined follows: When negative sync. video signal input, charge current flows from PC1830 that synchronization peak (minimum potential) becomes approximately voltage sync. separate input (pin becomes higher during period other than synchronization peak (minimum potential), thus cutting transistor (reducing collector current TR1). Consequently, charge discharged current during this cut-off period. Figure illustrates this situation.
µPC1830
Figure 5-7. Sync. Separation Waveform
Charge
Discharge
(4.7
(58.86
Figure represents slice voltage expressed following expression assumed that sufficiently large, both linear. (T2/T1) PC1830 amplifies part lower than this slice voltage (VS) perform sync. separation. determine sync. separation sensitivity, change Decreasing advantageous separation horizontal sync. part, disadvantageous separation vertical sync. part. contrary, increasing cause sync. failure (jitter) noise (spikes) horizontal sync. part. Therefore, necessary optimize constant accordance with signal input. capacitance select sufficiently large value compared with charge/discharge current. However, excessive value deteriorate excessive response characteristic, failing catch with drastic variations input signal. larger larger slice level becomes. However, with large sync. signal level drops (weak electric field signal, etc.) video signal confused with sync. signal sliced, making synchronization unstable (abnormal). Caution Since measuring circuit uses capacitor coupling input ease measurement, susceptible variations. Therefore, when configuring actual circuit, Sync clamp circuit stage prior inputting emitter follower stabilize synchronization peak potential this will make circuit more resistant variations. Vertical filter circuit Separates vertical sync. signal from sync. signal separated sync. separation circuit. Horizontal sync. detection circuit Detects presence horizontal sync. signal changes time constant. detection circuit Performs phase detection input sync. signal outputs phase difference voltage. Stops phase detection vertical blanking period. 32fH Controls according voltage output detection circuit generates 32fH oscillation clocks.
µPC1830
Horizontal/vertical counter circuit Horizontal counter circuit Divides 32fH signal generate horizontal timing signals such signals. 525/625 counter circuit Performs counting generates vertical timing signal. Generates 0.75H delay from falling edge vertical sync. signal field 0.75H delay from falling edge vertical sync. signal even field.
µPC1830
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings unless otherwise specified)
Parameter Power supply voltage Video input signal voltage Chroma input signal voltage Synchronous separation input signal voltage Control signal voltage Permissible package power dissipation Operating ambient temperature Storage temperature Symbol VIcnt Tstg Ratings board, +125 Unit
Caution
Even parameters exceeds absolute maximum rating even momentarily, quality product degraded. absolute maximum rating therefore specifies upper lower limit value which product used without physical damages. sure exceed fall below this values when using product.
Recommended Operating Conditions
Parameter Power supply voltage Composite video input voltage Separate chroma input signal voltage Synchronous separation input signal voltage Control signal voltage Color difference input voltage Symbol Conditions MIN. TYP. MAX. Unit
cont
µPC1830
ELECTRICAL SPECIFICATIONS unless otherwise specified)
VIDEO SIGNAL PROCESSING SECTION
Parameter Power supply current Video voltage gain Symbol Conditions With input signal Input signal Composite MIN. /Separate (MHz) NTSC TYP. MAX. Unit
v(comp) Contrast max.
Stair step (400 p-p)
Both
3.58/ 4.43 3.58/ 4.43 3.58/ 4.43
10.0
12.0
14.0
Contrast variable range Video output voltage fluctuation when contrast variable Video frequency characteristics
Max./min. contrast ratio Stair step (400 p-p) Sync. signal (300 p-p) only
Both
±400
Output fluctuation, Contrast max./min.
Both
kHz/1.8 gain difference, Contrast max. kHz/5.5 gain difference, Contrast max. voltage
Sine wave (400 p-p)
Composite
4.43 3.58
Separate
4.43 3.58
Video input voltage Video output voltage
Scan period voltage Contrast max. change when changes from Contrast max.
Sync. signal (300 p-p) only
Both
3.58/ 4.43
Video output power supply voltage fluctuation
Sync. signal p-p) only
Both
3.58/ 4.43
±100
Video output gain power supply voltage fluctuation
Video voltage gain Stair step change when (400 p-p) changes from Contrast max. Gain difference kHz/3.58 kHz/4.43 Contrast max. Sine wave (400 p-p)
-0.5
+0.5
Trap attenuation amount
Composite
3.58/ 4.43
Remark input signal, Measuring Input Signal.
µPC1830
CHROMA SECTION (1/3)
Parameter amplitude characteristics Symbol ACC1 Conditions output level fluctuation. With reference burst Input signal Composite MIN. /Separate (MHz) NTSC 4.43 -2.0 TYP. MAX. +2.0 Unit
ACC2
Color Burst Composite mVp-p Burst mVp-p Burst mVp-p Burst mVp-p
-7.0
-3.0
+1.0
ACC3
3.58
-2.0
+2.0
ACC4
-7.0
-3.0
+1.0
ACC5
ACC6
output level fluctuation. With reference burst
Burst Separate mVp-p Burst mVp-p Burst mVp-p Burst mVp-p
4.43
-2.0
+2.0
-7.0
-3.0
+1.0
ACC7
3.58
-2.0
+2.0
ACC8
-7.0
-3.0
+1.0
Color killer setting point
Level which killer output goes high with burst signal Level which killer output goes high with burst signal output remaining level when killer output high. Color killer output level when color killer -200
Color
Composite
4.43
3.58 Separate 4.43 3.58
NTSC NTSC
Color killer color remainder
Color
Color killer output, high
ECKH
4.05
Color killer output,
ECKL
Color killer output level when color killer OFF, +200 output level ratio max./min. subcolor. output remaining subcolor difference level, Color min. pull-in frequency range when burst chroma frequency changes. reference) Calculate from oscillation freq. when filter voltage 2.3/2.7
Subcolor control variable range Subcolor control color remainder
Color
Composite
4.43
Color
Composite
4.43
pull-in range
Color
Composite
4.43 3.58
NTSC NTSC
±400 ±400 ±400 ±400
±600 ±600 ±600 ±600
Hz/mV Hz/mV
Separate
4.43 3.58
control sensitivity
4.43 3.58
Remark input signal, Measuring Input Signal.
µPC1830
(2/3)
Parameter free-running frequency mode demodulation ratio NTSC mode demodulation ratio mode demodulation angle NTSC mode demodulation angle Maximum color difference output Symbol Conditions oscillator freq. Input signal Sync. signal (300 mVp-p only Rainbow color (300 p-p) Composite MIN. /Separate (MHz) NTSC 4.43 3.58 Composite 4.43 3.58 NTSC ±400 ±400 TYP. MAX. Unit Times Times
R-Y/B-Y output ratio
R-YDP demodulation angle Rainbow color (300 p-p) R-YDN Subcolor max. Rainbow color (300 p-p)
Composite
4.43
3.58
NTSC
Composite
4.43
Color difference output remaining carrier level Color difference output remaining harmonic level Color difference output frequency characteristics
R-Y, output remaining carrier level
3.58
NTSC
Output remaining harmonic level, R-Y, Vp-p 50/500 R-Y, output level ratio kHz/1 R-Y, output level ratio Subcolor max. R-Y/B-Y output blank period/scan period voltage difference
Color
3.58
NTSC
Since wave (400 p-p)
Composite
4.43 3.58
NTSC NTSC
Separate
4.43 3.58
Blanking stage difference
Burst (300 p-p) only
4.43
Line fluctuation
Subcolor max. Burst (300 Scan period voltage p-p) only difference every horizontal scanning period output EORY output voltage, With signal output voltage, With signal
4.43
Color difference output voltage
4.43
EOBY
Color difference output voltage fluctuation with power supply fluctuation
EORYV change when changes from EOBYV change when changes from
4.43
±100
±100
Remark input signal, Measuring Input Signal.
µPC1830
(3/3)
Parameter Separate chroma input voltage Separate chroma input resistance Separate/composite change threshold voltage Symbol Conditions voltage Input signal Composite MIN. /Separate (MHz) NTSC Separate TYP. MAX. Unit
Calculate from input when Voltage which separate/ composite mode changed
Separate
EICTH
3.58
NTSC
Remark input signal, Measuring Input Signal.
µPC1830
SYNCHRONOUS SECTION (1/2)
Parameter Sync. separation input voltage sync. pull-in range Symbol Conditions Sync. separation input voltage signal Frequencies which horizontal pulled, sync width Calculated from output frequency change when horizontal filter voltage changes from With signal Difference 15.680 output frequency, With signal Change when changes from Composite Input signal MIN. /Separate (MHz) NTSC 2.25 ±400 TYP. 2.55 MAX. 2.85 Unit
Sync. signal (300 p-p) only
Horizontal control sensitivity
Hz/mV
Horizontal free-running freq.
-200
+200
Horizontal free-running freq. fluctuation with power supply voltage fluctuation pulse output, high pulse output, pulse output width Blanking pulse output, high Blanking pulse output, Blanking pulse output, width Vertical free-running frequency 50-Hz mode)
-200 +200
Sync. signal (300 mVp-p) only Sync. signal (300 mVp-p) only Sync. signal (300 mVp-p) only Sync. signal (300 mVp-p) only
4.05
When pulse rising, falling -200 +200
EBLH
4.05
Sync. signal (300 mVp-p) only Sync. signal (300 mVp-p) only Sync. separate input
When blanking pulse rising, falling sync. detect filter voltage sync. detect filter voltage sync. detect filter voltage sync. detect filter voltage
10.4
10.9
H/368
H/352
Sync. separate input
H/272
H/288
Remark input signal, Measuring Input Signal.
µPC1830
(2/2)
Parameter Vertical free-running frequency 60-Hz mode) Symbol Conditions sync. detect filter voltage sync. detect filter voltage sync. detect filter voltage sync. detect filter voltage -200 +200 Sync. signal Sync. signal Sync. separate input Input signal Sync. separate input Composite MIN. /Separate (MHz) NTSC TYP. H/296 MAX. Unit
H/288
H/232
H/240
pulse output, high pulse output, Even field pulse output width field pulse output width
EVDH
4.05
EVDL
WVDE
WVDO
Remark input signal, Measuring Input Signal.
µPC1830
MODE CONTROL SECTION
Parameter NTSC/PAL mode switch threshold voltage Symbol EPN1 Conditions Voltage which both decoder matrix changes NTSC mode simultaneously. Voltage which only matrix changes NTSC mode decoder remains NTSC mode. Input current Input signal Composite MIN. /Separate (MHz) NTSC 1.37 TYP. 1.67 MAX. 1.97 Unit
EPN2
3.03
3.33
3.63
NTSC/PAL mode switch input current Subcarrier frequency switch threshold voltage Subcarrier frequency switch input current Vertical frequency switch threshold voltage Vertical frequency switch input current
-0.5
+0.2
+2.0
Voltage which 3.58/4.43 mode changed. Input current
-2.0
-0.2
+0.5
Voltage which 50/60 mode changed. Input current
-2.0
-0.2
+0.5
NTSC/PAL MODE SETTING
setting Mode Mode Mode Voltage Lower than EPN1 Between EPN1 EPN2 Higher than EPN2 Decoder mode NTSC NTSC Matrix mode NTSC
VERTICAL FREQUENCY (fV) SWITCHING
Voltage Lower than Higher than Vertical frequency
SUBCARRIER FREQUENCY (fSC) SWITCHING
Voltage Lower than Higher than Subcarrier frequency 4.43 3.58
µPC1830
MATRIX SECTION (1/2)
Parameter Original color output voltage gain voltage gain output mutual difference voltage gain fluctuation with power supply voltage fluctuation Symbol Conditions output voltage gain. Composite Input signal MIN. /Separate (MHz) NTSC Y:stair step p-p) Y:stair step p-p) -2.0 TYP. MAX. +2.0 Unit
YRGB Mutual difference output voltage gains.
-1.0
+1.0
Difference between Y:stair step output voltage gain p-p) under same conditions except that kHz/6 output gain difference. Sine wave p-p)
-0.5
+0.5
frequency characteristics
output color difference voltage gain Color control variable range
output voltage gain. Tint control voltage Color max.
B-Y: stair step (400 mVp-p)
Difference between output B-Y: stair step gain (400 mVp-p) Tint control voltage Color min. output remaining color difference level. Tint control voltage Color min. B-Y: stair step (400 mVp-p)
Color control color remainder
Color difference voltage gain fluctuation with power supply voltage fluctuation Color difference freq. characteristics
Difference between each B-Y: stair step output voltage gain under same condition (400 mVp-p) except that changed from output gain difference when freq. changes from MHz. Tint control voltage Color max. B-Y: sine wave (400 mVp-p
-0.5
+0.5
Tint control variable range
TMAX. Note. TMIN. Color max.
Stair step (400 mVp-p)
PAL/ NTSC
Note
demodulation angle obtained from output signal voltages using following expressions: demodulation angle tan-1 Where, output signal voltage when signal input only output signal voltage when signal input only B-Y, eTMAX. eTMIN. obtained from values using following expressions: eTMAX. B(4) B(2), eTMIN. B(2) B(10) Where, B(0), B(2), B(4): values when tint control voltage respectively.
Remark input signal, Measuring Input Signal.
µPC1830
(2/2)
Parameter mode demodulation ratio Symbol Conditions Input signal Composite MIN. /Separate (MHz) NTSC 0.50 TYP. 0.56 MAX. 0.62 Unit Times
Tint control Color Stair step max. (400 p-p) Note1.
0.31 NTSC 0.69
0.35 0.75
0.39 0.83
Times Times
mode demodulation angle NTSC mode demodulation ratio
0.22
0.25
0.28
Times
NTSC mode demodulation angle Clamp pulse input threshold voltage input voltage input voltage output voltage output voltage output voltage difference voltage between outputs output fluctuation color control mode
Note
EX-Y Maximum value difference voltages between
RGBC Maximum value fluctuation Color control max./min. Tint control RGBT Maximum value fluctuation Tint control max./typ./min. Color control max. EYIC EYIT Color control max./min. Tint control Tint control max./typ./min. Color control max.
±300
output fluctuation tint control mode
±300
input fluctuation color control mode input fluctuation tint control mode input voltage
±300 ±300
Notes From output voltages when signal input only output voltages when signal input only B-Y, demodulation ratio demodulation angles obtained following expressions:
-tan-1 -tan-1
tan-1 tan-1 240°
Clamp pulse input voltage which gets more input voltage VCC. Remark input signal, Measuring Input Signal.
µPC1830
Measuring Input Signal Stair step
mVp-p
mVp-p
Vp-p
mVp-p
Sync. signal (300 mVp-p) only
mVp-p
Sine wave
mVp-p
mVp-p
Sine Wave Mono Tone
Sine Wave Mono Tone
mVp-p Vp-p Sine Wave Mono Tone
Sine Wave Mono Tone
µPC1830
Color Variable burst chroma signal amplitude
Vp-p
Vp-p
Variable burst chroma signal amplitude
Rainbow color (300 mVp-p)
Rainbow chroma signal mVp-p
Burst (300 mVp-p) only
mVp-p
µPC1830
Timing chart (horizontal period)
Burst signal Composite video input
sync. output (HD)
Blanking output (BLK)
µPC1830
Timing chart (vertical period/standard signal input)
field Composite video input
sync. output (HD)
Blanking output (BLK) sync. output (VD) 0.75H Even field Composite video input sync. output (HD) Blanking output (BLK)
sync. output (VD) 0.75H 1.25H
5.5H
Remark represents horizontal scanning period.
APPLICATION CIRCUIT EXAMPLE
Example
Notes Crystal resonator load 4.433 (PAL) DAISHINKU CORP. (Type: HC-49/U) 3.579 (NTSC) Toyo Communication Equipment Co., Ltd. (Type: TQC203A-8R) CSB500F23: Murata Mfg. Co.,Ltd.
SEP-C-IN
0.01
A733
Subcolor control Contrast control
1000
Note
C945
C945
4.43 3.58
0.22
B-OUT
0.22
C945
C945 0.22 C945 0.22 R-OUT G-OUT
0.22
0.01
Y-IN
Mode switch Sync. separate
Separate/composite switch, amp. subcolor control
Filter adjust
3.58 MHz/4.43 VCXO,
output buffer
Clamp
chroma
APC, killer detect, IDENT detect
C945
filter sync. detect
chroma trap
NTSC/PAL matrix
Separate/composite switch
R-Y,
modulate
killer
Tint control
Mode Mode Mode
Delay
Contrast control
Amp. color control
count
wave detect
blanking pulse, killer output buffer
R-Y, output buffer
R-Y, input clamp
3.58 4.43
Killer detect
PD4538B
4700
0.22
Note
0.22 0.22
Color control Tint control Delay
SEP-SW COMP
µPC1830
Example (for NTSC limited use)
Notes Crystal resonator load 3.579 (NTSC) Toyo Communication Equipment Co., Ltd. (Type: TQC203A-8R) CSB500F23: Murata Mfg. Co.,Ltd.
SEP-C-IN
0.01
A733
Subcolor control Contrast control
1000
Note
C945
C945
3.58
0.22
B-OUT
0.22
C945
C945
0.22
0.01
0.22
G-OUT
Y-IN
Mode switch Sync. separate
Separate/composite switch, amp. subcolor control
Filter adjust
3.58 MHz/4.43 VCXO,
output buffer
C945 0.22 R-OUT
Clamp
chroma
APC, killer detect, IDENT detect
C945
filter sync. detect
chroma trap
NTSC/PAL matrix
Separate/composite switch
wave detect
R-Y,
modulate
Killer
Tint control
count
Delay
Contrast control
Amp. color control
blanking pulse, killer output buffer
R-Y, output buffer
R-Y, input clamp
4700
Killer detect
PD4538B
0.22
Note
0.22 0.22
Color control Tint control Delay
SEP-SW COMP
µPC1830
Example (for limited use)
Notes Crystal resonator load 4.433 (PAL) DAISHINKU CORP. (Type: HC-49/U) CSB500F23: Murata Mfg. Co.,Ltd.
SEP-C-IN
0.01
A733
Subcolor control Contrast control
1000
Note
C945
C945
4.43
0.22
B-OUT
C945
0.22
0.22
0.01
C945
0.22
G-OUT
Y-IN
Mode switch Sync. separate
Separate/composite switch, amp. subcolor control
Filter adjust
3.58 MHz/4.43 VCXO,
output buffer
C945 0.22 R-OUT
Clamp
chroma
APC, killer detect, IDENT detect
C945
filter sync. detect
chroma trap
NTSC/PAL matrix
Separate/composite switch
R-Y,
modulate
Killer
Tint control
count
Delay
Contrast control
Amp. color control
blanking pulse, killer output buffer
wave detect
R-Y, output buffer
R-Y, input clamp
4700
Killer detect
PD4538B
0.22
Note
0.22 0.22
Color control Tint control Delay
SEP-SW COMP
µPC1830
Example (When matrix section used)
Notes Crystal resonator load 4.433 (PAL) DAISHINKU CORP. (Type: HC-49/U) 3.579 (NTSC) Toyo Communication Equipment Co., Ltd. (Type: TQC203A-8R) CSB500F23: Murata Mfg. Co.,Ltd.
SEP-C-IN
0.01
A733
Subcolor control Contrast control
1000
Note
C945
4.43 3.58
0.22
C945
0.22
0.01
Y-IN
Mode switch Sync. separate
Clamp
Separate/composite switch, amp. subcolor control
Filter adjust
3.58 MHz/4.43 VCXO,
output buffer
chroma
APC, killer detect, IDENT detect
C945
filter sync. detect
chroma trap
NTSC/PAL matrix
Separate/composite switch
R-Y,
modulate
Contrast control
Killer
Tint control Amp. color control
Mode Mode Mode
count
Delay
wave detect
blanking pulse, killer output buffer
R-Y, output buffer
R-Y, input clamp
3.58 4.43
4700
Killer detect
Note
SEP-SW COMP
µPC1830
µPC1830
OPERATING PRECAUTIONS µPC1830 External Components
Resistors series resistors (approximately precision) higher. Capacitors Ceramic capacitors 1000 below Capacitors used time constant circuit. Basically series (10% precision) ones with center value nominal temperature characteristic. Ceramic capacitors 1000 higher Equivalent capacitors non-critical time constant circuits clamp, bypass capacitors between power supply GND. series (10% precision) ones. type whose capacitance extremely affected temperature variations (ie. with excellent temperature characteristic). Electrolytic capacitors series (20% precision) ones. ones whose capacitance extremely affected temperature variations (ie. with excellent temperature characteristic). Crystal resonators crystal resonators load type shown below. 4.433 (model name: HC-49/U, manufactured Kinseki, Ltd.) Communication Equipment Co., Ltd.) Note that crystal resonators other than above deteriorate electrical characteristics. Ceramic resonators ceramic resonators shown below. CSB500 (manufactured Murata Mfg. Co., Ltd.) Note that ceramic resonators other than above deteriorate mainly electrical characteristics sync. section.
NTSC 3.579 (model name: TQC203A-8R (HC-49/U-10 type), manufactured Toyo
µPC1830
µPC1830 Pattern Wiring
line Solid grounding should applied three GNDs: synchronous section (pin video section (pin chroma section (pin 33). They should connected other digital GNDs except point origin. thick connection (thick through hole) each When emitter follower circuit, amplifier, etc. connected color difference output stage output stage, separate solid ground output stage from that output stage. Power supply line three analog power supplies, synchronous section power supply (pin video section power supply (pin chroma section power supply (pin should independent each other unified supply source. Ensure that there unnecessary routing. Separate digital section power supply from analog section power supply connect them only point. Signal line order avoid signal cross talk, ensure that color difference signal line (pins signal line (pins placed close parallel with digital signal line (pin 10), (pin (pin lines, cross those lines. Placement peripheral components each Place components which connected with pins close When placed components connected power supply line other lines, route low-impedance lines make sure that thickest possible lines used connection with pins.
µPC1830
PACKAGE DRAWING
PLASTIC SHRINK (375 mil)
detail lead
S42GT-80-375B-1
NOTE Each lead centerline located within 0.10 (0.004 inch) true position (T.P.) maximum material condition.
ITEM
MILLIMETERS 18.16 MAX. 1.13 MAX. (T.P.) 0.35 +0.10 -0.05 0.125±0.075 MAX. 2.5±0.2 10.3±0.3 7.15±0.2 1.6±0.2 0.15 +0.10 -0.05 0.8±0.2 0.10 0.10
INCHES 0.715 MAX. 0.044 MAX. 0.031 (T.P.) 0.014 +0.004 -0.003 0.005±0.003 0.115 MAX. 0.098+0.009 -0.008 0.406+0.012 -0.013 0.281+0.009 -0.008 0.063±0.008 0.006 +0.004 -0.002 0.031 +0.009 -0.008 0.004 0.004
µPC1830
RECOMMENDED SOLDERING CONDITIONS
When soldering this product, highly recommended observe conditions shown below. other soldering processes used, soldering performed under different conditions, please make sure consult with sales offices. more details, refer document "SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL" (C10535E). Surface Mount Device
µPC1830GT: 42-pin plastic shrink (375 mil)
Process Infrared reflow Conditions Peak temperature: below (Package surface temperature), Reflow time: seconds less higher), Maximum number reflow processes: times. Peak temperature: below (Package surface temperature), Reflow time: seconds less higher), Maximum number reflow processes: times. temperature: below, Heat time: seconds less (Per each side device). Symbol IR35-00-2
Vapor phase soldering
VP15-00-2
Partial heating method
Caution
Apply only kind soldering condition device, except "partial heating method", device will damaged heat stress.
µPC1830
[MEMO]
µPC1830
[MEMO]
application circuits their parameters reference only intended actual design-ins.
part this document copied reproduced form means without prior written consent Corporation. Corporation assumes responsibility errors which appear this document. Corporation does assume liability infringement patents, copyrights other intellectual property rights third parties arising from device described herein other liability arising from such device. license, either express, implied otherwise, granted under patents, copyrights other intellectual property rights Corporation others. While Corporation been making continuous effort enhance reliability semiconductor devices, possibility defects cannot eliminated entirely. minimize risks damage injury persons property arising from defect semiconductor device, customers must incorporate sufficient safety measures design, such redundancy, fire-containment, anti-failure features. devices classified into following three quality grades: "Standard", "Special", "Specific". Specific quality grade applies only devices developed based customer designated "quality assurance program" specific application. recommended applications device depend quality grade, indicated below. Customers must check quality grade each device before using particular application. Standard: Computers, office equipment, communications equipment, test measurement equipment, audio visual equipment, home electronic appliances, machine tools, personal electronic equipment industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment medical equipment (not specifically designed life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems medical equipment life support, etc. quality grade devices "Standard" unless otherwise specified NEC's Data Sheets Data Books. customers intend devices applications other than those specified Standard quality grade, they should contact sales representative advance. Anti-radioactive design implemented this product.
96.5

µPC1830 FILTER-CONTAINING VIDEO CHROMA, SYNCHRONIZING SIGNAL PROC

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