ICS307-03
SERIALLY PROGRAMMABLE CLOCK SOURCE
Pin Assignment
X1
VDD
VDD
VDD
GND
GND
GND
CLK1
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
16-pin TSSOP
X2
PD
CLK3
GND
CLK2
DIN
CS
SCLK
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin
Name
X1
VDD
VDD
VDD
GND
GND
GND
CLK1
SCLK
CS
DIN
CLK2
GND
CLK3
PD
X2
Pin
Type
XI
Power
Power
Power
Power
Power
Power
Output
Input
Input
Input
Output
Power
Output
Input
-
Pin Description
Connect to input reference clock or crystal.
Power connection for crystal oscillator.
Power connection for PLL.
Power connection for inputs and outputs.
Ground connection for crystal oscillator.
Ground connection for PLL.
Ground connection for inputs and outputs.
Clock 1 output.
Programming interface - Serial clock input. Internal pull-up.
Programming interface - LOAD input. Internal pull-down.
Programming interface - Serial data input. Internal pull-up.
Clock 2 output.
Ground connection.
Clock 3 output.
Crystal, PLL, and outputs are powered-down when low. Internal pull-up.
Connect to crystal. Leave open if reference clock input is used.
MDS 307-03 C
2
Revision 101705
Integrated Circuit Systems ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com