ICS8402I Datasheet, PDF (5/19 Pages) Integrated Circuit Systems – 350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER

ICS8402I
350MHZ, CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER
Table 3B. Programmable VCO Frequency Function Table
VCO Frequency
256
128
64
32
16
8
4
2
1
(MHz)
M Divide
M8
M7
M6
M5
M4
M3
M2
M1
M0
250
10
0
0
0
0
0
1
0
1
0
275
11
0
0
0
0
0
1
0
1
1
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
650
26
0
0
0
0
1
1
0
1
0
675
27
0
0
0
0
1
1
0
1
1
700
28
0
0
0
0
1
1
1
0
0
NOTE 1: These M divide values and the resulting frequencies correspond to a TEST_CLK or crystal frequency of 25MHz.
Table 3C. Programmable Output DividerFunction Table
Inputs
Output Frequency (MHz)
N1
N0
N Divider Value
Minimum
Maximum
0
0
2
125
350
0
1
4
62.5
175
1
0
8
31.25
87.5
1
1
16
15.625
43.75
Table 3D. OE Function Table
Inputs
Output
OE0
OE1
Q0
Q1
0
0
Hi-Z
Hi-Z
0
1
Hi-Z
Enabled
1
0
Enabled
Hi-Z
1
1
Enabled
Enabled
IDT™ / ICS™ LVCMOS/LVTTL FREQUENCY SYNTHESIZER
5
ICS8402AYI REV. A OCTOBER 16, 2007