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LA7386 Datasheet(PDF) 2 Page - Sanyo Semicon Device

Part No. LA7386
Description  NTSC Video Signal Processing LSI for VCRs
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCCmax
7.0
V
Allowable power dissipation
Pdmax
Ta
% 65°C
1070
mW
Operating temperature
Topr
–10 to +65
°C
Storage temperature
Tstg
–40 to +150
°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
5.0
V
Operating supply voltage range
VCCop
4.8 to 5.2
V
Operating Characteristics at Ta = 25°C, V
CC =5 V
Parameter
Symbol
Conditions
min
typ
max
Unit
[REC Mode Y]
Current consumption REC
ICCR
When VCC = 5 V (when there is no signal),
measure sum of incoming currents at pins 29 and
24
95
120
145
mA
AGC adjustment
CAGC
VIN = 1.0 Vp-p video signal, use VR33 to adjust
T3 output to 0.5 Vp-p
VCA control characteristics 1
VCA 1
Measure T3 output level when S9 is set to 2
0.48
0.5
0.52
Vp-p
VCA control characteristics 2
VCA 2
Measure T3 output level when S9 is set to 4
0.48
0.5
0.52
Vp-p
AGC adjustment voltage
VAGC
Measure T33 DC voltage in above state
3.2
3.4
3.6
V
AGC detection voltage
VAD
Measure T32 DC voltage in same manner
1.2
1.4
1.6
V
EE output level
VEE
Measure T28A output level in same manner
0.95
1.0
1.05
Vp-p
AGC output 1
AGC 1
VIN = 2.0 Vp-p video signal
Measure T3 output level
500
520
540
mVp-p
AGC output 2
AGC 2
VIN = 0.5 Vp-p video signal
Measure T3 output level
460
480
500
mVp-p
AGC output 3
AGC 3
VIN = 714 mVp-p LUMI, 572 mVp-p SYNC,
measure T3 SYNC level
135
150
165
mVp-p
AGC output 4
AGC 4
VIN = 714 mVp-p LUMI, 143 mVp-p SYNC,
measure T3 SYNC level
90
100
110
mVp-p
Sync separation output level
VSYR
VIN = 1.0 Vp-p video signal,
T26 output pulse peak value
4.0
4.2
4.4
Vp-p
Sync separation output pulse
width
PWSYR
VIN = 1.0 Vp-p video signal,
T26 output pulse width
4.0
4.3
4.6
µs
Sync separation output leading
edge delay time
∆ TSYR
VIN = 1.0 Vp-p video signal, measure delay time
of output SYNC versus input SYNC
0.8
1.0
1.2
µs
Sync separation threshold level
THSYR
Gradually attenuate the input level, measure input
level at point when output pulse width widens 1
µs or more beyond PWSYR
–18
–14
dB
Sync tip level,
pedestal level,
white level measurement
(REC)
LVOR
Measure electric potential for each of the T28
video output sync tip, pedestal, and white peak,
and assign the measured values to LSYN,LPED,
and LWHI, respectively
VCA detection voltage
VVCA
Measure T8 DC voltage
2.80
2.95
3.10
V
Comb filter adjustment
VIN = standard multiburst signal 1 Vp-p and S30
= off, adjust so that the 3.58 MHz component at
T21 is at a minimum
Y-comb characteristics
GY-Comb
Measure the chroma level at T2 with a spectrum
analyzer, VIN = standard chroma noise test signal
1 Vp-p and S30 = off
–25
dB
C-comb characteristics
GC-Comb
VIN = white 50% + CW 3.0 MHz
–25
dB
Continued on next page.
LA7386
No.5472 - 2/13




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