November
2006
rev 1.6
Pin Configuration (6-pin TSOT- 23 Package)
PD 1
XOUT 2
XIN / CLKIN 3
6 V
SS
ASM3P2780A
ASM3P2780A
5 ModOUT
4 V
DD
Pin Description
Pin#
1
2
3
4
5
6
Pin Name
PD
XOUT
XIN / CLKIN
V
DD
ModOUT
V
SS
Type
I
O
I
P
O
P
Description
Power-down control pin. Pull low to enable power-down mode. Connect to V
DD
if not
used.
Crystal connection. If using an external reference, this pin must be left unconnected.
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.
Power supply for the entire chip.
Spread spectrum clock output.
Ground connection.
Pin Configuration (8-pin SOIC and TSSOP Packages)
XIN / CLKIN
1
XOUT
2
PD
NC
3
4
8
7
6
5
V
DD
NC
ModOUT
V
SS
ASM3P2780A
Pin Description
Pin#
1
2
3
4
5
6
7
8
Pin Name
XIN/CLKIN
XOUT
PD
NC
V
SS
ModOUT
NC
V
DD
Type
I
O
I
-
P
O
-
P
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.
Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not
used.
No connect.
Ground connection.
Spread spectrum clock output.
No connect.
Power supply for the entire chip.
Low Power Peak EMI Reducing Solution
Notice: The information in this document is subject to change without notice.
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PULSECORE [ PulseCore Semiconductor ]
