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2011.08 - Rev.B

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Video Accessory ICs

High Performance VCOs

for Image Sampling

BU2373FV,BU2374FV

●

Description

General-purpose VCO Series ICs (BU2373FV and BU2374FV) have a built-in VCO and phase comparator and facilitate the

configuration of a PLL system through the external connection of a LPF and frequency divider.

Furthermore, in order to facilitate the loop constant settings of the PLL system, the application manual has been enhanced to

ensure studies on the application.

●

Features

1) The VCO enables midpoint settings within the range of oscillation through the external resistance.

2) The rising edge trigger type of phase comparator is built in.

3) Power-down mode setting can be made independently with the VCO and the phase comparator.

4) The VCO output frequency division can be selected on the SELECT pin.

5) Compact SSOP-B14 Package is adopted.

●

Applications

CRT, LCD monitor, and CD-RW

●

Line up matrix

BU2373FV

BU2374FV

Supply voltage

VDD=3.0V

○

－

VDD=3.3V

○

○

VDD=5.0V

○

－

Frequency

range

VDD=3.0V

37～60MHz

－

VDD=3.3V

37～65MHz

37～60MHz

VDD=5.0V

43～100MHz

－

VCO-Frequency dividing mode

1/2

1/4

Operating temperature range

-20～75℃

-20～75℃

Package

SSOP-B14

SSOP-B14

●

Absolute maximum ratings (Ta=25℃)

Symbol

Ratings

Unit

Supply voltage

VDD

-0.5～7.0

V

Input voltage

VIN

-0.5～VDD+0.5

V

Storage temperature range

Tstg

-30～125

℃

Power dissipation

Pd

400

mW

*1 Operating is not guaranteed.

*2 In the case of exceeding Ta = 25℃, 4.0mW should be reduced per 1℃.

*3 The radiation-resistance design is not carried out.

*4 Power dissipation is measured when the IC is mounted to the printed circuit board.

No.11069EBT07