Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
IC
S
C
OMMON
C
ONFIGURATION
T
ABLE
- Gb E
THERNET
Inputs
Crystal Frequency (MHz)
25
26.666
33.33
M
20
20
20
N
4
4
4
Multiplication
Value M/N
5
5
5
Output Frequency
(MHz)
125
133.33
166.66
B
LOCK
D
IAGRAM
OE
Pullup
P
IN
A
SSIGNMENT
V
DDA
GND
XTAL_OUT
XTAL_IN
1
2
3
4
8
7
6
5
V
DD
Q
nQ
OE
XTAL_IN
OSC
XTAL_OUT
Phase
Detector
VCO
490MHz - 680MHz
N = ÷4
(fixed)
Q
nQ
ICS844021-01
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm
package body
G Package
Top View
M = ÷20
(fixed)
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
IDT
™
/ ICS
™
LVDS CLOCK GENERATOR
1
ICS844021BG-01 REV. C SEPTEMBER 27, 2007
ICS844021-01
FEMTOCLOCKS™ CRYSTAL-TO-LVDS CLOCK GENERATOR
PRELIMINARY
T
ABLE
1. P
IN
D
ESCRIPTIONS
Number
1
2
3,
4
5
6, 7
8
Name
V
DDA
GND
XTAL_OUT,
XTAL_IN
OE
nQ, Q
V
DD
Power
Power
Input
Input
Output
Power
Pullup
Type
Description
Analog supply pin.
Power supply ground.
Crystal oscillator interface. XTAL_IN is the input,
XTAL_OUT is the output.
Output enable pin. When HIGH, Q/nQ output is active.
When LOW, the Q/nQ output is in a high impedance state.
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Industrial Control Electronics
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