ICS650-07C Ver la hoja de datos (PDF) - Integrated Circuit Systems
Número de pieza
componentes Descripción
Lista de partido
ICS650-07C Datasheet PDF : 5 Pages
| |||
PRELIMINARY INFORMATION
ICS650-07C
Networking Clock Source
For a 25 MHz fundamental crystal or clock input, the following four tables apply :
A Clocks Select Table (outputs in MHz)
ACS1
0
0
0
1
1
1
ACS0
0
M
1
0
M
1
CLKA1
100
Test
75
33.3333
Test
66.6667
CLKA2
off (low)
Test
off (low)
16.6667
Test
33.3333
B Clocks Select Table (outputs in MHz)
BCS1
0
0
0
1
1
1
BCS0
0
M
1
0
M
1
CLKB1
Test
66.6667
100
83.3333
Test
133.3333
CLKB2
Test
33.3333
50
41.6667
Test
66.6667
C Clocks Select Table (outputs in MHz)
CCS
CLKC1
0
125
M
Test
1
75
CLKC2
125
Test
75
REFOUT
25 MHz
0 = connect directly to GND
M = leave unconnected (automatically self biases to VDD/2)
1 = connect directly to VDD
For a 12.5 MHz crystal or clock input, the following four tables apply :
A Clocks Select Table (outputs in MHz)
ACS1
0
0
0
1
1
1
ACS0
0
M
1
0
M
1
CLKA1
50
Test
37.5
16.6667
Test
33.3333
CLKA2
off (low)
Test
off (low)
8.3333
Test
16.6667
B Clocks Select Table (outputs in MHz)
BCS1
0
0
0
1
1
1
BCS0
0
M
1
0
M
1
CLKB1
Test
33.3333
50
41.6667
Test
66.6667
CLKB2
Test
16.6667
25
20.8333
Test
33.3333
C Clocks Select Table (outputs in MHz)
CCS
CLKC1
0
62.5
M
Test
1
37.5
CLKC2
62.5
Test
37.5
0 = connect directly to GND
M = leave unconnected (automatically self biases to VDD/2)
1 = connect directly to VDD
REFOUT
12.5 MHz
MDS 650-07C A
2
Revision 101399
Printed 11/28/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose • CA • 95126•(408)295-9800tel • www.icst.com
Share Link: 