April 2007
rev 0.2
Pin Configuration
PCS3P2191A
VDD
GND
S2
GND
CLK1
CLK2
GND
XIN/CLKIN
1
2
3
4
5
6
7
8
16Pin TSSOP
16
15
14
S0
VDD
S1
GND
CLK4
GND
CLK3
XOUT
PCS3P2191A
13
12
11
10
9
Pin Description
Pin#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
V
DD
GND
S2
GND
CLK1
CLK2
GND
XIN/CLKIN
XOUT
GND
CLK3
CLK4
GND
S1
S0
V
DD
Type
power
power
Input
power
Output
Output
power
Input
Output
power
Output
Output
power
Output
Output
power
Description
Power Supply Voltage Pin. Connect to +3.3V.
Ground Connection. Connect to system ground.
Spread range select. Digital logic input used to select frequency deviation
(Refer
Spread Deviation Table).
This pin has an internal pull-up resistor.
Ground Connection. Connect to system ground.
Low EMI 4x clock output.
Low EMI 4x clock output.
Ground Connection. Connect to system ground.
Crystal connection or external reference frequency input. It can be connected to a
15MHz fundamental mode crystal.
Crystal connection. If using an external reference, this pin must be left
unconnected.
Ground Connection. Connect to system ground.
Low EMI 4x clock output.
Low EMI 4x clock output.
Ground Connection. Connect to system ground.
Spread range select. Digital logic input used to select frequency deviation
(Refer
Spread Deviation Table).
This pin has an internal pull-up resistor.
Spread range select. Digital logic input used to select frequency deviation
(Refer
Spread Deviation Table).
This pin has an internal pull-up resistor.
Power Supply Voltage Pin. Connect to +3.3V.
Spread Spectrum Clock Generator
Notice: The information in this document is subject to change without notice.
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PULSECORE [ PulseCore Semiconductor ]
