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LA7191N Datasheet(PDF) 7 Page - Sanyo Semicon Device

Part No. LA7191N
Description  Global VHS-format VCR Video Signal Processor
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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Parameter
Symbol
Input Output
Conditions
min
typ
max
Unit
SLD detection current
ISLD1
T39A
T4A
T23A In PB mode, with S24: 3 and S23: off, input a
4 MHz 300 mVp-p continuous wave from
T39A, input a 50% white signal from T4A,
and measure the wave peak at T23A
ISLD1 = VOS1/1 kΩ
135
µA
ISLD2
T39A
T4A
T23A Same as above (however, S24 = 1)
ISLD2 = VOS2/1 kΩ
135
µA
2fsc output level
V2fsc
T21
In PB mode, measure the T21 output level
with an FET probe
480
640
800
mVp-p
Note) A trap (4.84 MHz for NTSC systems and 5.69 MHz for PAL systems) is required in the chroma playback system (between
pins 25 and 27 or between pins 31 and 29) in order to suppress unnecessary components in converter output.
LA7191N
No. 5471 - 7/11




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