January 2007
rev 1.7
ASM3P2759A
Pin Configuration (8-pin SOIC and TSSOP Packages)
VDD
XIN/CLKIN
XOUT
1
2
3
8
7
6
NC
ASM3P2759A
ModOUT
PD
5
4
VSS
Pin Description
Pin# Pin Name Type
Description
Crystal connection or external reference frequency input. This pin has dual functions. It
1
2
3
XIN/CLKIN
XOUT
I
O
I
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.
Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not
PD
NC
used.
No connect.
4
5
6
7
8
-
P
O
-
VSS
ModOUT
NC
Ground connection.
Spread spectrum clock output.
No connect.
VDD
P
Power supply for the entire chip
Modulation Profile
Specification
Description
Specification
3MHz < CLKIN < 5MHz
3MHz < CLKIN < 6MHz
For 2.5V Supply
For 3.3V Supply
Frequency Range
Modulation Equation
Frequency Deviation
FIN/128
±1% @ 3MHz
Low Power Peak EMI Reducing Solution
3 of 12
Notice: The information in this document is subject to change without notice.
PULSECORE [ PulseCore Semiconductor ]
