ICS8735-21

700MHZ, DIFFERENTIAL-TO-3.3V LVPECL ZERO DELAY CLOCK GENERATOR

IDT™ / ICS™ 3.3V LVPECL ZERO DELAY CLOCK GENERATOR

3

ICS8735AM-21 REV. A JULY 31, 2008

Function Tables

Table 3A. Control Input Function Table

*NOTE: VCO frequency range for all configurations above is 250MHz to 700MHz.

Inputs

Outputs

PLL_SEL = 1

PLL Enable Mode

SEL3

SEL2

SEL1

SEL0

Reference Frequency Range (MHz)*

Q/nQ, QFB/nQFB

0000

250 - 700

÷1

0001

125 - 350

÷1

0010

62.5 - 175

÷1

0011

31.25 - 87.5

÷1

0100

250 - 700

÷2

0101

125 - 350

÷2

0110

62.5 - 175

÷2

0111

250 - 700

÷4

1000

125 - 350

÷4

1001

250 - 700

÷8

1010

125 - 350

x2

1011

62.5 - 175

x2

1100

31.25 - 87.5

x2

1101

62.5 - 175

x4

1110

31.25 - 87.5

x4

1111

31.25 - 87.5

x8