LA76814 Просмотр технического описания (PDF) - SANYO -> Panasonic

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производитель

LA76814

For NTSC Color Television Sets VIF/SIF/Y/C/Deflection Implemented in a Single Chip

SANYO -> Panasonic 

LA76814

VIF Block Input Signals and Test Conditions

1. Input signals must all be input to the PIF IN (pin 6) in the Test Circuit.

2. All input signal voltage values are the levels at the VIF IN (pin 6) in the Test Circuit.

3. Signal contents and signal levels.

Input signal

SG1

Waveform

45.75MHz

CW

Conditions

SG2

42.17MHz

CW

SG3

41.25MHz

CW

SG4

Frequency variable

CW

SG5

45.75MHz

87.5% Video Mod.

10-stairstep wave

(Subcarrier: 3.58MHz)

SG6

4. Before measurement, adjust the DAC as follows.

Parameter

Video

Level DAC

Test point

46

Input signal

SG6, 80dBµ

45.75MHz

fm = 15kHz, AM = 78%

Adjustment

Set the output level at pin 46 as close to 2.0Vp-p as possible.

No.A0253-8/35

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