UPC3217GV datasheet(6/7 Pages) NEC

6 / 7 page

Pin No.

Name

Applied Voltage

Pin Voltage

Description

Internal Equivalent Circuit

(v)

(v)1

1VCC

4.5 to 5.5

Power supply pin. This pin should be externally

equipped with bypass capacitor to minimize

ground impedance.

INPUT1

1.45

Signal input pins of AGC amplifier.

INPUT2

1.45

4VAGC

0 to 3.0 VCC

Gain control pin. This pin's bias govern the

AGC output level.

Minimuim Gain at VAGC = 0.5 V

Maximum Gain at VAGC = 4.5 V

Recommended to use a 0 to 5 V AGC range

for the system and divide this voltage through

a resistive bridge (see evaluation board).

This helps make the AGC slope less steep.

GND 2

Ground pin. This pin should be connected to

system ground with minimum inductance.

Ground pattern on the board should be formed

as wide as possible.

OUTPUT2

2.2

Signal output pins of video amplifier

OUTPUT1

2.2

GND 1

Ground pin. This pin should be connected to

system ground with minimum inductance.

Ground pattern on the board should be formed

as wide as possible. All ground pins must be

connected together with wide ground pattern

to decrease impedance difference.

PIN EXPLANATIONS (UPC3217GV, UPC3218GV common)

AGC

Control

AGC

Amp

Note:

1. PIN is measured at VCC = 5 V

UPC3217GV, UPC3218GV

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