LA7391AN View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LA7391AN Datasheet PDF : 11 Pages
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LA7391AN
Operating Characteristics at Ta = 25 °C, VCC = 5.0 V
Parameter
[REC Mode Y]
Current drain REC
AGC adjustment
VCA control characteristics
AGC adjustment voltage
AGC detection voltage
EE output level
AGC Output 1
AGC Output 2
AGC Output 3
AGC Output 4
Sync separation output level
Sync separation output
pulse width
Sync separation output
leading edge delay time
Sync separation threshold
level
Sync tip level,
pedestal level,
white level measurement
(REC)
Pseudo V insertion level
(REC)
Pseudo H insertion level
(REC)
White insertion level (REC)
VCA detection voltage
REC YNR operation
EP/LP
Y-LPF frequency
characteristics
FM modulator output level
FM modulator secondary
distortion
Symbol
ICCR
CAGC
VCA
VAGC
VAD
VEE
AGC 1
AGC 2
AGC 3
AGC 4
VSYR
PWSYR
∆ TSYR
THSYR
LVOR
∆ VDR
∆ HDR
∆ WHR
VVCA
VR-YNR
YLPF 1
YLPF2
YLPF3
YLPF4
VFM
HMOD
Input Output
Conditions
min typ max Unit
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T37A
T4
T39
T38
T34A
T4
T4
T4
T4
T32
T32
T32
T32
T34
T34
T34
T34
T9
T3
T3
T3
T3
T3
T40
T40
When VCC = 5 V (when there is no signal),
measure sum of incoming current at pins 35
and 28
VIN = 1.0 Vp-p video signal, use VR39 to
adjust T4 output to 0.5 Vp-p
Measure T4 output level when S10 is set to 2
Measure T39 DC voltage in above state
Measure T38 DC voltage in same manner
Measure T34A output level in same manner
VIN = 2.0 Vp-p video signal
Measure T4 output level
VIN = 0.5 Vp-p video signal
Measure T4 output level
VIN = 700 mVp-p LUMI, 600 mVp-p SYNC
Measure T4 SYNC level
VIN = 700 mVp-p LUMI, 150 mVp-p SYNC
Measure T4 SYNC level
VIN = 1.0 Vp-p video signal,
Measure T32 output pulse wave high value
VIN = 1.0 Vp-p video signal,
Measure T32 output pulse width
VIN = 1.0 Vp-p video signal, measure delay
time of output SYNC versus input SYNC
Gradually attenuate the input level, measure
input level at point when output pulse width
widens 1 µs or more beyond PWSYR
Measure electric potential for each of the T34
video output sync tip, pedestal, and white
peak, and assign the measured values to
LSYN, LPED, and LWHI, respectively
Measure T34 DC voltage when 5 V is applied
to T33, and assign the measured value to
LVDR and calculate the difference with LSYN
∆VDR = LSYN – LVDR
Measure T34 DC voltage when 2.7 V is
applied to T33, and assign the measured
value to LHDR and calculate the difference
with LPED
∆HDR = LPED – LHDR
Measure T34 DC voltage when 1.3 V is
applied to T33, and assign the measured
value to LWHR and calculate the difference
with LWHI
∆WHR = LWHI – LWHR
Measure T9 DC voltage
VIN = white 50% + CW
(15.8 mVp-p) ratio between 32fH component
and 32.5fH component
VIN = standard multiburst signal 1 Vp-p,
2 MHz response to 500 kHz at T3
VIN = standard multiburst signal 1 Vp-p,
4.8 MHz response to 500 kHz at T3
VIN = standard multiburst signal 1 Vp-p,
2 MHz response to 500 kHz at T3, T22A: 5 V
VIN = standard multiburst signal 1 Vp-p,
4.8 MHz response to 500 kHz at T3, T22A: 5
V
No input, use VR42 to adjust output
frequency to 4 MHz, measure output level
Ratio of 8 MHz component to 4 MHz in the
above state
95
0.48
3.2
1.2
0.95
500
470
135
70
4.0
4.4
0.6
–80
–200
150
3.1
3.5
0.2
–4.5
0.4
–5.0
0.8
120
0.5
3.4
1.4
1.00
540
490
150
85
4.2
4.7
0.8
–18
0
–100
250
3.4
4.5
0.7
–3.5
0.9
–4.0
1.0
–40
145 mA
0.52 Vp-p
3.6 V
1.6 V
1.05 Vp-p
560 mVp-p
500 mVp-p
165 mVp-p
100 mVp-p
4.4 Vp-p
5.0 µs
1.0 µs
–14 dB
80 mV
0 mV
350 mV
3.7 V
5.5 dB
1.2 dB
–2.5 dB
1.4 dB
–3.0 dB
1.2 Vp-p
–35 dB
Continued on next page.
No. 3951-2/11
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