LA76075 Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LA76075

NTSC Color Television Sets / Color TV Single-Chip Signal Processor

SANYO -> Panasonic 

LA76075

VIF Block Input Signals and Measurement Conditions

1. Input the input signals to the VIF IN pin noted on the measurement circuit diagrams.

2. The input signal levels are the VIF IN levels noted on the measurement circuit diagrams.

3. The following table describes the input signals.

Input Signal

Waveform

Conditions

SG1

45.75 MHz

SG2

42.17 MHz

SG3

41.25 MHz

SG4

Variable frequency

SG5

45.75 MHz

87.5% Video Mod.

Ten-step wave using 3.58-MHz

subcarrier

SG6

45.75 MHz

87.5% Video Mod.

Flat field signal

4. Before starting the measurements, adjust the digital-to-analog converters in the following order.

Item

APC DAC

PLL DAC

Video Level DAC

Measurement Point

13

13

45

Input Signal

No signal, IF.AGC.DEF = 1

SG1, 93 dBµ

SG6, 93 dBµ

Target Value

Adjust to bring the DC voltage at pin 13 as close as possible to 3.8 V.

Adjust to bring the DC voltage at pin 13 as close as possible to 3.8 V.

Adjust to bring the output level at pin 45 as close as possible to 2.0 Vp-p.

No. 5845-13/35

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