ICS670-01
Low Phase Noise Zero Delay Buffer and Multiplier
Pin Assignment
VDD
VDD
VDD
CLK2
OE2
FBCLK
OE1
FBIN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
GND
GND
GND
S0
S1
S2
S3
ICLK
Multiplier Select Table
S3 S2 S1 S0
CLK2 (and FBCLK)
0
0
0
0
Low (Power down entire chip)
0
0
0
1
Input x1.333
0
0
1
0
Input x6
0
0
1
1
Input x1.5
0
1
0
0
Input x3.333
0
1
0
1
Input x2.50
0
1
1
0
Input x4
0
1
1
1
Input x1
1
0
0
0
Input x2.333
1
0
0
1
Input x2.666
1
0
1
0
Input x12
1
0
1
1
Input x3
1
1
0
0
Input x10
1
1
0
1
Input x5
1
1
1
0
Input x8
1
1
1
1
Input x2
0=connect directly to ground
1=connect directl to VDD
Input Range (MHz)
-
18 - 120
5 - 26.67
16.67 - 107
7.5 - 48
10 - 64
6 - 40
25 - 160
11 - 69
10 - 60
5 - 13.33
8 - 53.33
5 - 16
6 - 32
5 - 20
12 - 80
ICS670-01
Pin Descriptions
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
VDD
VDD
VDD
CLK2
OE2
FBCLK
OE1
FBIN
ICLK
S3
S2
S1
S0
GND
GND
GND
Type
P
P
P
O
I
O
I
CI
CI
I
I
I
I
P
P
P
Description
Connect to +3.3V or +5V. Must match other VDDs.
Connect to +3.3V or +5V. Must match other VDDs.
Connect to +3.3V or +5V. Must match other VDDs.
Clock output from VCO. Output frequency equals the input frequency times multiplier.
Output clock enable 2. Tri-states the clock 2 output when low.
Clock ouput from VCO. Output frequency equals the input frequency times multiplier.
Output clock enable 1. Tri-states the feedback clock output when low.
Feedback clock input.
Clock input. Connect to a 5 - 160 MHz clock.
Multiplier select pin 3. Determines outputs per table above. Internal pull-up.
Multiplier select pin 2. Determines outputs per table above. Internal pull-up.
Multiplier select pin 1. Determines outputs per table above. Internal pull-up.
Multiplier select pin 0. Determines outputs per table above. Internal pull-up.
Connect to ground.
Connect to ground.
Connect to ground.
Key: I = Input with internal pull-up resistor; O = output; P = power supply connection; CI = clock input.
2
Revision 100900
Printed 11/15/00
Integrated Circuit Systems • 525 Race Street • San Jose •CA•95126•(408) 295-9800tel•http://www.icst.com
MDS 670-01 B
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
