MDS 1527 G

Revision 110905

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.

Integrated Circuit Systems

ICS1527

Video Clock Synthesizer

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

• 16-pin TSSOP package

Applications

• Frequency synthesis

• LCD monitors, video projectors and plasma displays

• Genlocking multiple video subsystems

Pin Configuration (16-pin TSSOP)

VDDD

1

VSSD

SDA

SCL

VSYNC

I2CADR

VDDA

VSSQ

VDDQ

CLK

HSYNC_out

LOCK

VSYNC_out

HSYNC

VSSA

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

EXTFB

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.

serial interface and is available in a TSSOP16

package.

ICS1527 Functional Diagram

HSYNC

VSYNC

HSYNC_out

VSYNC_out

EXTFB

External

Divider

CLK

ICS1527