May 2007
rev 0.4
ASM3P622S00A/B/J/E/K
Pin Description for ASM3P622S00J
Pin #
Pin Name
Description
Crystal connection or external reference frequency input. This pin has dual functions. It
can be connected either to an external crystal or an external reference clock.
Crystal connection. If using an external reference, this pin must be left unconnected.
1
XIN/CLKIN
2
3
4
XOUT
SS%2
GND
Spread Spectrum Selection
Ground
Spread Spectrum enable and disable option When SSON is HIGH, the spread
spectrum is enabled and when LOW, it turns off the spread spectrum.
5
SSON2
6
7
8
CLKOUT1
VDD
Buffered clock output
3.3V supply
NC
No Connect
Notes: 1. Weak pull-down on all outputs
2. Weak pull-up on these Inputs
3. Buffered clock output is Timing-Safe™
Pin Description for ASM3P622S00E
Pin #
Pin Name
CLKIN
Description
Input reference frequency, 5V tolerant input
1
2
3
4
5
6
7
CLKOUT11
VDD
Buffered clock output
3.3V supply
SS%2
Spread Spectrum Selection
GND
Ground
CLKOUT21
CLKOUT31
Buffered clock output
Buffered clock output
The pin is used to skew the outputs such that they align with the input. The skew is
in the range of 100-200pS
8
9
DLY CNTRL
Spread Spectrum enable and disable option. When SSON is HIGH, the spread
spectrum is enabled and when LOW, it turns off the spread spectrum.
SSON3
10
11
12
13
14
15
16
CLKOUT41
CLKOUT51
GND
Buffered clock output
Buffered clock output
Ground
VDD
3.3V supply
CLKOUT61
CLKOUT71
CLKOUT1
Buffered clock output
Buffered clock output
Buffered clock output
Notes: 1. Weak pull-down on all outputs
2. Weak pull-up on these Inputs
3. Buffered clock outputs are Timing-Safe™
Low Frequency Timing-Safe™ Peak EMI Reduction IC
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Notice: The information in this document is subject to change without notice.
PULSECORE [ PulseCore Semiconductor ]
