Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
ICS
C
OMMON
C
ONFIGURATION
T
ABLE
Inputs
Crystal Frequency (MHz)
25
25
FREQ_SEL
0
1
M
32
32
N
2
4
Multiplication
Value M/N
16
8
Output Frequency
(MHz)
400
200
B
LOCK
D
IAGRAM
FREQ_SEL
Pullup
P
IN
A
SSIGNMENT
FREQ_SEL N
0
÷2
1
÷4
V
DDA
XTAL_OUT
XTAL_IN
GND
1
2
3
4
8
7
6
5
V
DD
Q
nQ
FREQ_SEL
XTAL_IN
OSC
XTAL_OUT
Phase
Detector
VCO
690MHz - 810MHz
Q
nQ
ICS844801I-24
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm
package body
G Package
Top View
M = ÷32
(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 400MHZ FREQUENCY SYNTHESIZER
1
ICS844801AGI-24 REV A JANUARY 16, 2008
ICS844801I-24
FEMTOCLOCKS™ CRYSTAL-TO-LVDS 400MHZ FREQUENCY SYNTHESIZER
PRELIMINARY
T
ABLE
1. P
IN
D
ESCRIPTIONS
Number
1
2, 3
4
5
6, 7
8
Name
V
DDA
XTAL_OUT,
XTAL_IN
GND
FREQ_SEL
nQ, Q
V
DD
Power
Input
Power
Input
Output
Power
Pullup
Type
Description
Analog supply pin.
Crystal oscillator interface. XTAL_IN is the input,
XTAL_OUT is the output.
Power supply ground.
Frequency select pin. LVCMOS/LVTTL interface levels.
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Sensor
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