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ICS84320AYI-01LFT

Description
780MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL
File Size184KB,18 Pages
ManufacturerICS ( IDT )
Websitehttp://www.icst.com
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ICS84320AYI-01LFT Overview

780MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL

Integrated
Circuit
Systems, Inc.
ICS84320I-01
780MH
Z
, C
RYSTAL
-
TO
-3.3V D
IFFERENTIAL
LVPECL F
REQUENCY
S
YNTHESIZER
F
EATURES
Dual differential 3.3V LVPECL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
Output frequency range: 77.5MHz to 780MHz
Crystal input frequency range: 14MHz to 40MHz
VCO range: 620MHz to 780MHz
Parallel or serial interface for programming counter
and output dividers
Duty cycle: 44% - 56% (N > 1)
RMS period jitter: 2.0ps (typical)
RMS phase jitter at 155.52MHz, using a 38.88MHz crystal
(12kHz to 20MHz): 2.38ps (typical)
RMS phase noise at 155.52MHz (typical)
Offset
Noise Power
100Hz ................ -90.5 dBc/Hz
1kHz ............... -114.2 dBc/Hz
10kHz ............... -123.6 dBc/Hz
100kHz ............... -128.1 dBc/Hz
3.3V supply voltage
-40°C to 85°C ambient operating temperature
Available in both, Standard and RoHS/Lead-Free
compliant packages
G
ENERAL
D
ESCRIPTION
The ICS84320I-01 is a general purpose, dual
output Crystal-to-3.3V Differential LVPECL
HiPerClockS™
High Frequency Synthesizer and a member of
the HiPerClockS™ family of High Performance
Clock Solutions from ICS. The ICS84320I-01
has a selectable TEST_CLK or crystal inputs. The VCO
operates at a frequency range of 620MHz to 780MHz. The
VCO frequency is programmed in steps equal to the
value of the input reference or crystal frequency. The VCO
and output frequency can be programmed using the
serial or parallel interfaces to the configuration logic. The
low phase noise characteristics of the ICS84320I-01
make it an ideal clock source for 10 Gigabit Ethernet,
SONET, and Serial Attached SCSI applications.
IC
S
B
LOCK
D
IAGRAM
VCO_SEL
XTAL_SEL
TEST_CLK
XTAL_IN
OSC
XTAL_OUT
32 31 30 29 28 27 26 25
M5
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
TEST
TEST
V
CC
FOUT1
nFOUT1
V
CCO
FOUT0
nFOUT0
V
EE
VCO_SEL
nP_LOAD
P
IN
A
SSIGNMENT
0
1
M4
M3
M2
M1
M0
XTAL_IN
24
XTAL_OUT
TEST_CLK
XTAL_SEL
V
CCA
S_LOAD
S_DATA
S_CLOCK
MR
PLL
PHASE DETECTOR
MR
÷
M
VCO
0
1
÷
N
÷
1
÷
2
÷
4
÷
8
M6
M7
M8
FOUT0
nFOUT0
FOUT1
nFOUT1
N0
N1
nc
V
EE
ICS84320I-01
32-Lead LQFP
7mm x 7mm x 1.4mm
package body
Y Package
Top View
23
22
21
20
19
18
17
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
CONFIGURATION
INTERFACE
LOGIC
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
84320AYI-01
www.icst.com/products/hiperclocks.html
1
REV. A AUGUST 11, 2005

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