May 2008

PCS1P2859A

rev 0.2

Notice: The information in this document is subject to change without notice.

PulseCore Semiconductor Corporation

1715 S. Bascom Ave Suite 200, Campbell, CA 95008

• Tel: 408-879-9077 • Fax: 408-879-9018

www.pulsecoresemi.com

Multi-Output Clock Synthesizer

Features

• Generates multiple clock outputs from an inexpensive

25MHz crystal or external reference clock

• Frequency outputs:

•

25MHz Reference clock

•

33MHz

•

48MHz (2 outputs)

•

127MHz (2 outputs)

• Zero ppm frequency synthesis error for all CLK outputs

• Supply Voltage :3.3V ± 5%V

• Low jitter design

• Packaged in 16 pin TSSOP

• Industrial Temperature range

• Compatible with CY22393XC-F12

• Advanced low-power CMOS process

Product Description

The PCS1P2859A is a Precision multi-PLL based

frequency synthesizer. The six Clock outputs are

generated using an inexpensive 25MHz Crystal. The

outputs consist of 25 MHz reference clock, 33 MHz, two

127MHz and two 48MHz clocks. The SHUTDOWNB tri-

states all the clocks when enabled. The device operates

from a Supply

Voltage of 3.3V±5%V. The device is

available in a 16-pin TSSOP JEDEC package for

Industrial temperature range.

Application

PCS1P2859A is targeted for use in high-end multimedia,

communications

and

consumer

applications.

Block Diagram

GND

33MHz

Crystal

Oscillator

48MHz

127MHz

VDD

PLL

25MHz

CLKIN/XIN

XOUT

SHUTDOWNB

48M_ENBLB

AVDD

AGND

2

2