PCS3I2191A PulseCore Semiconductor, PCS3I2191A Datasheet - Page 2

• Manufacturer Part Number: PCS3I2191A
• Description: Spread Spectrum Clock Generator
• Manufacturer: PulseCore Semiconductor

Pin Description
April 2007
rev 0.2
Pin Configuration
Pin#
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Pin Name
XIN/CLKIN
XOUT
CLK1
CLK2
CLK3
CLK4
GND
GND
GND
GND
GND
V
V
S2
S1
S0
DD
DD
Output
Output
Output
Output
Output
Output
Output
power
power
power
power
power
power
power
Type
Input
Input
XIN/CLKIN
Notice: The information in this document is subject to change without notice.
Spread Spectrum Clock Generator
CLK2
CLK1
GND
GND
GND
VDD
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.
S2
3
4
5
1
2
6
7
8
PCS3P2191A
16Pin TSSOP
Description
10
13
14
12
11
15
16
9
VDD
GND
CLK4
XOUT
S0
GND
CLK3
S1
PCS3P2191A
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