February 2008

PCS3P2537A

rev 0.2

Low Power Peak EMI Reduction IC

2 of 7

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

VDD

SSON

2

3

4

5

6

7

8

GND

NC

NC

ModOUT

PCS3P2537A

XOUT

Pin Configuration (8-pin TDFN Package)

Pin Description

Pin#

Pin Name

Type

Description

1

CLKIN /

XIN

I

External reference Clock input or Crystal connection. This pin has dual functions. It can

be connected either to an external crystal or an external reference clock.

2

XOUT

O

Crystal connection. If using an external reference, this pin must be left unconnected.

3

SSON

I

When SSON is HIGH, the spread spectrum is enabled and when LOW, it turns off the

spread spectrum.

4

NC

No Connect

5

GND

P

Ground connection.

6

ModOUT

O

Spread Spectrum Clock Output.

7

NC

No Connect

8

VDD

P

Power supply for the entire chip