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LA7386 Datasheet(PDF) 5 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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Parameter
Symbol
Conditions
min
typ
max
Unit
Double noise canceller
characteristics (3)
GWNC3
f = 2 MHz, 15.8 mVp-p
–10.5
–9.0
–7.5
dB
Double noise canceller
characteristics (4)
GWNC4
f = 3.58 MHz, 158 mVp-p
–2.0
–1.5
–1.0
dB
Double noise canceller
characteristics (5)
GWNC5
f = 3.58 MHz, 50 mVp-p
–5.1
–4.1
–3.1
dB
Double noise canceller
characteristics (6)
GWNC6
f = 3.58 MHz, 15.8 mVp-p
–10.5
–8.5
–7.0
dB
PIC-CTL hard response
characteristics (1)
GPH1
f = 1 MHz, 158 mVp-p
3.5
4.5
5.5
dB
PIC-CTL hard response
characteristics (2)
GPH2
f = 2 MHz, 158 mVp-p
7
8
9
dB
PIC-CTL soft response
characteristics (1)
GPS1
f = 1 MHz, 158 mVp-p
–5.5
–4.5
–3.5
dB
PIC-CTL soft response
characteristics (2)
GPS2
f = 2 MHz, 158 mVp-p
–9
–8
–7
dB
PIC-CTL center response
characteristics
GPC
f = 2 MHz, 158 mVp-p
1.0
1.5
2.0
dB
DOC loop gain Y
GDOC
T33A: 4 MHz, 300 mVp-p sine wave
T3A: 0.5 Vp-p video signal
I/O response 5H after instant when input at T33A
went to 0
–1.0
0
+1.0
dB
Sync tip level,
pedestal level,
white level measurement (PB)
LVOR
With VIN = white 100% 0.5 Vp-p
Measure electric potential for each of the pin 28
video output sync tip, pedestal, and white peak,
and assign the measured values to LSYN,LPED,
and LWHI, respectively
β€”
Pseudo V insertion level (PB)
βˆ† VDP
Measure pin 28 DC voltage when5Vis applied
to pin 26, and assign the measured value to
LVDP, and calculate the difference with LSYN
βˆ† VDP =LSYN –LVDP
–80
0
+80
mV
Pseudo H insertion level (PB)
βˆ† HDP
Measure pin 28 DC voltage when 2.5 V is applied
to pin 26, and assign the measured value to
LHDP, and calculate the difference with LPED
βˆ†HDP =LPED –LHDP
–200
–100
0
mV
White insertion level (PB)
βˆ†WHP
Measure pin 28 DC voltage when 1.3 V is applied
to pin 26, and assign the measured value to
LWHP, and calculate the difference with LWHI
βˆ†WHP =LWHI –LWHP
40
140
240
mV
Sync separation output level
VSYP
VIN = 0.5 Vp-p video signal
Pin 26 output pulse peak value
4.0
4.2
4.4
Vp-p
Sync separation output pulse
width
PWSYP
VIN = 0.5 Vp-p video signal
Pin 26 output pulse width
4.0
4.3
4.6
Β΅s
Sync separation output leading
edge delay time
βˆ† TSYP
VIN = 0.5 Vp-p video signal, measure delay time
of output SYNC versus input SYNC
1.4
1.6
1.8
Β΅s
[REC Mode Chroma]
REC chroma
Y/C separation output level
VOR-21
VIN = standard color bar signal (1 Vp-p)
Measure burst level at T21
170
220
270
mVp-p
REC chroma low-band
conversion output level
VOR-14
VIN = standard color bar signal (1 Vp-p)
Measure burst level at T14A
230
330
430
mVp-p
Burst emphasis amount
GBE
VIN = standard color bar signal (1 Vp-p)
Ratio of burst level at T14A when S35A is off
(SP/EP) and on (LP)
5.5
6.0
6.5
dB
VXO oscillation level
VVXO-R
VIN = standard color bar signal (1 Vp-p),
measure T18 output amplitude (with an FET
probe)
360
450
540
mVp-p
REC ACC characteristics 1
ACCR1
VIN = standard color bar signal (1 Vp-p),
input +6 dB chroma signal level only, measure
T14A burst level, and calculate ratio with VOR-14
+0.2
+0.5
dB
Continued on next page.
LA7386
No.5472 - 5/13




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