The ICS843001I-23 is a highly versatile, low phase
noise LVPECL/LVCMOS Synthesizer which can
HiPerClockS™
generate low jitter reference clocks for a variety of
communication applications and is a member of
the HiPerClocks
TM
family of high performance clock
solutions from IDT. The dual crystal interface
allows the synthesizer to support up to three communication
standards in a given application (i.e. SONET with a 19.44MHz
crystal, 1Gb/10Gb Ethernet and Fibre Channel using a 25MHz
crystal). The rms phase jitter performance is typically less than
1ps, thus making the device acceptable for use in demanding
applications such as OC48 SONET, GbE/10Gb Ethernet
and SAN applications. The ICS843001I-23 is packaged in
a small 24-pin TSSOP package.
F
EATURES
• One 3.3V LVPECL output pair and
one LVCMOS/LVTTL REF_OUT output
• Selectable crystal oscillator interfaces
or LVCMOS/LVTTL single-ended input
• Crystal and CLK range: 17.5MHz - 29.54MHz
• Able to generate GbE/10GbE/12GbE, Fibre Channel
(1Gb/4Gb/10Gb), PCI-E and SATA from a 25MHz crystal
• VCO range: 1.12GHz - 1.3GHz
• Supports the following applications:
SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV
• RMS phase jitter @ 622.08MHz (12kHz - 20MHz):
0.9ps (typical) @ 3.3V
• Supply modes:
V
CC
/V
CCO
3.3V/3.3V
3.3V/2.5V
2.5V/2.5V
• -40°C to 85°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
IC
S
B
LOCK
D
IAGRAM
3
N2:N0
SEL0
Pulldown
SEL1
Pulldown
N
XTAL_IN0
000
001
010
011
÷2
÷4
÷5
÷6
÷8
(default)
÷10
÷12
÷16
Q
nQ
P
IN
A
SSIGNMENT
V
CCO
_
LVCMOS
N0
N1
N2
V
CCO
_
LVPECL
Q
nQ
V
EE
V
CCA
V
CC
XTAL_OUT1
XTAL_IN1
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
REF_OUT
V
EE
OE_REF
M2
M1
M0
MR
SEL1
SEL0
CLK
XTAL_IN0
XTAL_OUT0
OSC
XTAL_OUT0
XTAL_IN1
00
11
OSC
XTAL_OUT1
CLK
Pulldown
01
Phase
Detector
VCO
10
01
00
100
101
110
111
10
11
000
001
010
011
100
111
M
÷44
÷45
÷48
÷50
÷51
÷64
(default)
ICS843001I-23
24-Lead TSSOP
4.40mm x 7.8mm x 0.92mm
package body
G Package
Top View
MR
Pulldown
M2:M0
Pullup
3
REF_OUT
OE_REF
Pulldown
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.
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