Preliminary Rev. 0.4 5/06

Copyright © 2006 by Silicon Laboratories

Si530/531

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

Si530/531

Features

Applications

Description

to provide a low jitter clock at high frequencies. The Si530/531 is available

with any-rate output frequency from 10 to 945 MHz and select frequencies to

1400 MHz. Unlike a traditional XO, where a different crystal is required for

each output frequency, the Si530/531 uses one fixed crystal to provide a

wide range of output frequencies. This IC based approach allows the crystal

resonator to provide exceptional frequency stability and reliability. In addition,

DSPLL clock synthesis provides superior supply noise rejection, simplifying

the task of generating low jitter clocks in noisy environments typically found in

communication systems. The Si530/531 IC based XO is factory configurable

for a wide variety of user specifications including frequency, supply voltage,

output format, and temperature stability. Specific configurations are factory

programmed at time of shipment, thereby eliminating long lead times

associated with custom oscillators.

Functional Block Diagram

Available with any-rate output

frequencies from 10 MHz to 945 MHz

and select frequencies to 1.4 GHz

jitter performance

3x better frequency stability than

SAW-based oscillators

Internal fixed crystal frequency

ensures high reliability and low

aging

Available CMOS, LVPECL,

LVDS, and CML outputs

3.3, 2.5, and 1.8 V supply options

Industry-standard 5 x 7 mm

package and pinout

Pb-free/RoHS-compliant

SONET/SDH

Networking

SD/HD video

Clock and data recovery

FPGA/ASIC clock generation

Fixed

Frequency

XO

Any-rate

10–1400 MHz

DSPLL®

Clock

Synthesis

CLK+

CLK–

OE

GND

Ordering Information:

See page 6.

Pin Assignments:

See page 5.

(Top View)

Si5602

1

2

3

6

5

4

GND

OE

CLK+

CLK–

NC

1

2

3

6

5

4

GND

NC

CLK+

NC

OE

1

2

3

6

5

4

GND

NC

CLK+

CLK–

OE

Si530 (LVDS/LVPECL/CML)

Si530 (CMOS)

Si531 (LVDS/LVPECL/CML)