July 2005
rev 1.0
Pin Description for ASM3P623S00A/B/C
Pin #
1
2
3
4
5
6
7
8
Pin Name
CLKIN
2
NC
SS%
4
GND
SSON
4
CLKOUT
1,3
VDD
NC
No Connect
Spread Spectrum Selection
Ground
ASM3P623S00A/B/C/D/E/F
Description
Input reference frequency, 5V-tolerant input
Spread Spectrum enable and disable option When SSON is HIGH, the spread
spectrum is enabled and when LOW, it turns off the spread spectrum.
Buffered clock output
3.3V supply
No Connect
Pin Description for ASM3P623S00D/E/F
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
CLKIN
2
CLKOUT1
3
VDD
SS%
4
GND
CLKOUT2
3
CLKOUT3
3
DLY CNTRL
SSON
4
CLKOUT4
GND
VDD
CLKOUT6
3
CLKOUT7
3
CLKOUT8
3
3
Description
Input reference frequency, 5V tolerant input
Buffered clock output
3.3V supply
Spread Spectrum Selection
Ground
Buffered clock output
Buffered clock output
The pin is used to skew the outputs such that they align with the input. The skew can
is in the range of 100-200pS
Spread Spectrum enable and disable option. When SSON is HIGH, the spread
spectrum is enabled and when LOW, it turns off the spread spectrum.
Buffered clock output
Buffered clock output
Ground
3.3V supply
Buffered clock output
Buffered clock output
Buffered clock output
CLKOUT5
3
Notes:
1. This output is driven and has an internal feedback for the PLL.
2. Weak pull-down. 3. Weak pull-down on all outputs. 4. Weak pull-up on these inputs.
Zero Cycle Slip Peak EMI Reduction IC
Notice: The information in this document is subject to change without notice.
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