1527G1LF データシートの表示（PDF） - Integrated Circuit Systems

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1527G1LF

Video Clock Synthesizer

Integrated Circuit Systems 

Integrated Circuit Systems

ICS1527

Video Clock Synthesizer

General Description

The ICS1527 is a low-cost, high-performance

frequency generator. It is suited to general purpose

phase controlled clock synthesis as well as

line-locked and genlocked high-resolution video

applications. Using ICS’s advanced low-voltage

CMOS mixed-mode technology, the ICS1527 is an

effective clock synthesizer that supports video

projectors and displays at resolutions from VGA to

beyond XGA.

The ICS1527 offers single-ended clock outputs to 60

or 110 MHz. The HSYNC_out, and VSYNC_out pins

provide the regenerated versions of the HSYNC and

VSYNC inputs synchronous to the CLK output.

The advanced PLL uses either its internal

programmable feedback divider or an external divider.

The device is programmed by a standard I2C-bus™

serial interface and is available in a TSSOP16

package.

ICS1527 Functional Diagram

HSYNC

VSYNC

I2C

ICS1527

EXTFB

External

Divider

HSYNC_out

VSYNC_out

CLK

Features

• Lead-free packaging (Pb-free)

• Low jitter (typical 27 ps short term jitter)

• LVCMOS single-ended clock outputs

• 60/110 MHz speed grades available

• Uses 3.3 V power supply

• 5 Volt tolerant Inputs (HSYNC, VSYNC)

• Coast (ignore HSYNC) capability via VSYNC pin

• Industry standard I2C-bus programming interface

• PLL Lock detection via I2C or LOCK output pin

• 16-pin TSSOP package

Applications

• Frequency synthesis

• LCD monitors, video projectors and plasma displays

• Genlocking multiple video subsystems

Pin Configuration (16-pin TSSOP)

VSSD 1

SDA 2

SCL 3

VSYNC 4

EXTFB 5

HSYNC 6

VDDA 7

VSSA 8

16 VDDD

15 VSSQ

14 VSYNC_out

13 VDDQ

12 CLK

11 HSYNC_out

10 LOCK

9 I2CADR

MDS 1527 G

ICS reserves the right to make changes in the preliminary device data

identified in this publication without notice. ICS advises its customers

to obtain the latest version of all device data to verify that information

being relied upon is current and accurate.

Revision 110905

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