LA7642N Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LA7642N

SECAM Format Color TV Chrominance Circuit

SANYO -> Panasonic 

LA7642N

Continued from preceding page.

Parameter

Symbol

Conditions

4.00-MHz input level variations 2

V5DB4

Measure the variation in the pin 5 DC voltage

when the 4.00-MHz input level is changed

from 200 mV p-p to 300 mV p-p.

4.43-MHz input level variations 1

Measure the variation in the pin 3 DC voltage

V3DS44 when the 4.43-MHz input level is changed

from 200 mV p-p to 100 mV p-p.

4.43-MHz input level variations 2

Measure the variation in the pin 3 DC voltage

V3DB44 when the 4.43-MHz input level is changed

from 200 mV p-p to 300 mV p-p.

4.00-MHz input impedance

The pin 9 input impedance. For reference

Z9

only (design value)

4.43-MHz input impedance

The pin 11 input impedance. For reference

Z11 only (design value)

[VCC Dependency]

ALC pulse wave height

dVALC

The percentage change in the ALC pulse

peak value when VCC changes by 1 V.

Measure the ALC pulse peak value when

VCC = 9 V and record this value as VALC9.

Calculate dVALC from the following formula.

(VALC9 – VALC)/1.2/VALC × 100 (%)

Notes: EQU = off: Pull pin 16 to ground through a 4.7-kΩ resistor.

EQU = on: Leave pin 16 open.

Ratings

min

typ

–50

0

–50

0

–50

0

15

15

10

15

Unit

max

+50 mV

+50 mV

+50 mV

kΩ

kΩ

20

%

Block Diagram

No. 5693-5/6

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