UPC3221GV datasheet(3/6 Pages) NEC

3 / 6 page

Pin No.

Name

Applied Voltage

(v)

Pin Voltage

(v)1

Description

Internal Equivalent Circuit

1VCC

4.5 to 5.5

Power supply pin. This pin should be

externally equipped with bypass capaci-

tor to minimize ground impedance.

INPUT1

1.29

Signal input pins of AGC ampliÞer.

INPUT2

1.29

4VAGC

0 to VCC

Gain control pin. This pin's bias govern

the AGC output level.

Minimuim Gain at VAGC = 0.5 V

Maximum Gain at VAGC = 3 to 3.5 V

Recommended to use by dividing AGC

voltage with external resistor (ex. 1kΩ)

GND 2

Ground pin. This pin should be con-

nected to system ground with minimum

inductance. Ground pattern on the

board should be formed as wide as

possible.

OUTPUT2

2.28

Signal output pins of video ampliÞer

OUTPUT1

2.28

GND 1

Ground pin. This pin should be con-

nected to system ground with minimum

inductance. Ground pattern on the

board should be formed as wide as pos-

sible. All ground pins must be connect-

ed together with wide ground pattern to

decrease impedance difference.

PIN EXPLANATIONS

AGC

Control

AGC

Amp

Note:

1. PIN is measured at VCC = 5 V

UPC3221GV

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