September 2006

ASM3P2590A

rev 0.4

Low Power Peak EMI Reducing Solution

2 of 7

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

CLKIN

2

3

4

5

6

ASM3P2590A

VDD

ModOUT

VSS

NC

Pin Configuration (6-pin TSOT- 23 Package)

Pin Description

Pin#

Pin Name

Type

Description

1

SSON

I

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

spread spectrum. Connect the pin to ground When Spread Spectrum feature is not

required.

2

NC

-

No Connect

3

CLKIN

I

Clock Input

4

VDD

P

Power supply for the entire chip.

5

ModOUT

O

Spread spectrum clock output.

6

VSS

P

Ground connection.

Modulation Profile

Specifications

Description

Specification

For 2.5V Supply

60MHz < CLKIN < 120MHz

Frequency Range

For 3.3V Supply

60MHz < CLKIN < 120MHz

Modulation Equation

Frequency Deviation

±0.75% (Typ) @ 85MHz Output