ASM3P2856A

November 2006

ASM3P2856B

rev 0.1

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

Custom Clock generator for LCD Project

3 of 8

Input & Output Clock Frequency Table

Input

Frequency

Output Frequencies

Frequency Accuracy of

synthesized clocks

CLK1

27.002 MHz

±20 ppm

CLK2

14.7456 MHz

Zero ppm

CLK3

65 MHz Non- Spread clock

±15 ppm

CLK4

65 MHz Spread Spectrum Clock

(+/-0.5 or +/- 1%)

±15 ppm

14.7456 MHz

CLK5

65 MHz Spread Spectrum Clock

(+/-0.5 or +/-1%)

±15 ppm

Spread Selection Table

SS%

Spread Percentage

0

± 1.0%

1

± 1.5%

Typical Application Schematic for LCD Projector

14.7456 MHz

fundamental

Crystal

+ 3.3V

0.1uF

CLK4

XOUT

XIN

16

15

14

5

1

2

3

4

ASM3P2856B

CLK1

CLK3

5

6

7

8

9

10

11

12

13

GND

GND

CLK2

CLK5

SS%

SSON

GND

NC

+ 3.3V

Make SSON Pin

HIGH to enable

Spread Spectrum

SS% Pin selects

different Spread

deviations

27.002MHz Clock

14.7456MHz Clock

65MHz Clock

65MHz SS Clock

65MHz SS Clock