ICS8624 Datasheet, PDF (3/16 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-HSTL ZERO DELAY BUFFER

Integrated
Circuit
Systems, Inc.
TABLE 2. PIN CHARACTERISTICS
Symbol
C_IN
R_PULLUP
R_PULLDOWN
Parameter
Input Capacitance
Input Pullup Resistor
Input Pulldown Resistor
ICS8624
LOW SKEW, 1-TO-5
DIFFERENTIAL-TO-HSTL ZERO DELAY BUFFER
Test Conditions
Minimum
Typical
4
51
51
Maximum
Units
pF
KΩ
KΩ
TABLE 3A. CONTROL INPUT FUNCTION TABLE
SEL1
0
SEL0
0
Inputs
Reference Frequency Range (MHz)*
250 - 700
Outputs
PLL_SEL = 1
PLL Enable Mode
Q0:Q4, nQ0:nQ4
÷1
0
1
125 - 350
÷1
1
0
62.5 - 175
÷1
1
1
31.25 - 87.5
÷1
*NOTE: VCO frequency range for all configurations above is 250MHz to 700MHz.
TABLE 3B. PLL BYPASS FUNCTION TABLE
Inputs
SEL1
0
0
1
1
SEL0
0
1
0
1
Outputs
PLL_SEL = 0
PLL Bypass Mode
Q0:Q4, nQ0:nQ4
÷4
÷4
÷4
÷8
8624BY
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3
REV. C JUNE 15, 2004