ICS844021I-01 Datasheet, PDF (2/13 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO- LVDS CLOCK GENERATOR

ICS844021I-01
FEMTOCLOCKS™ CRYSTAL-TO-LVDS CLOCK GENERATOR
PRELIMINARY
TABLE 1. PIN DESCRIPTIONS
Number
Name
Type
Description
1
V_DDA
Power
2
GND
Power
Analog supply pin.
Power supply ground.
3,
4
XTAL_OUT,
XTAL_IN
Input
Crystal oscillator interface. XTAL_IN is the input,
XTAL_OUT is the output.
Output enable pin. When HIGH, Q/nQ output is active.
5
OE
Input Pullup When LOW, the Q/nQ output is in a high impedance state.
LVCMOS/LVTTL interface levels.
6, 7
nQ, Q
Output
Differential clock outputs. LVDS interface levels.
8
V_DD
Power
Core supply pin.
NOTE: Pullup refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
TABLE 2. PIN CHARACTERISTICS
Symbol
C_IN
R_PULLUP
Parameter
Input Capacitance
Input Pullup Resistor
Test Conditions
Minimum
Typical
4
51
Maximum
Units
pF
kΩ
IDT^™ / ICS^™ LVDS CLOCK GENERATOR
2
ICS844021BGI-01 REV. C SEPTEMBER 27, 2007