November 2006
rev 0.2
Pin Configuration
XIN / CLKIN 1
XOUT 2
8 VDD
7 SRO
P2027A
P2027A
MRA 3
VSS
4
6 ModOUT
5 SSON
Pin Description
Pin#
1
2
3
4
5
6
7
8
Pin Name
XIN/CLK
XOUT
MRA
VSS
SSON
ModOUT
SR0
VDD
Type
I
O
I
P
I
O
I
P
Description
Crystal connection or external reference frequency input. This pin has dual
functions. It can be connected to either an external crystal or an external
reference clock.
Crystal connection. Input connection for an external crystal. If using an
external reference, this pin must be left unconnected.
Digital logic input used to select Modulation Rate (see Table 1). This pin
has an internal pull-up resistor.
Ground Connection. Connect to system ground.
Digital logic input used to enable Spread Spectrum function (Active Low).
Spread Spectrum function enable when low. This pin has an internal pull-low
resistor.
Spread Spectrum Clock Output.
Digital logic input used to select Spreading Range (see Table 1). This pin
has an internal pull-up resistor.
Connect to +3.3V Power Supply.
General Purpose EMI Reduction IC
Notice: The information in this document is subject to change without notice.
2 of 8
PULSECORE [ PulseCore Semiconductor ]
