ICS843003 Datasheet, PDF (4/17 Pages) Integrated Circuit Systems – FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
ICS843003
FEMTOCLOCKS™CRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER
TABLE 3C. OUTPUT BANK CONFIGURATION SELECT FUNCTION TABLE
Inputs
DIV_SELA1 DIV_SELA0
0
0
0
1
1
0
1
1
Outputs
QA
÷1
÷2
÷4
÷5
Inputs
DIV_SELB1 DIV_SELB0
0
0
0
1
1
0
1
1
Outputs
QB
÷1
÷2
÷4
÷5
TABLE 3D. FEEDBACK DIVIDER CONFIGURATION SELECT FUNCTION TABLE
FB_DIV
0
1
Inputs
Feedback Divide
÷20
÷24
TEST_CLK
OEA, OEB
nQA0, nQBx
QA0, QBx
Disabled
Enabled
FIGURE 1. OE TIMING DIAGRAM
843003AG
www.icst.com/products/hiperclocks.html
4
REV. A JULY 27, 2004