參數(shù)資料
型號: ICS840002BG-32T
元件分類: 時鐘產(chǎn)生/分配
英文描述: 212.5 MHz, OTHER CLOCK GENERATOR, PDSO8
封裝: 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8
文件頁數(shù): 1/8頁
文件大?。?/td> 139K
代理商: ICS840002BG-32T
Integrated
Circuit
Systems, Inc.
840002BG-32
www.icst.com/products/hiperclocks.html
REV. A JUNE 27, 2005
1
ICS840002-32
FEMTOCLOCKSCRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
PRELIMINARY
GENERAL DESCRIPTION
The ICS840002-32 is a 2 output LVCMOS/
LVTTL Synthesizer optimized to generate
Fibre Channel or Serial ATA reference clock
frequencies and is a member of the
HiPerClocksTM family of high perfor mance
clock solutions from ICS. Using an 18pF parallel resonant
crystal, the following frequencies can be generated based
on 1 frequency select pin (SEL): 106.25MHz and 75MHz,
or 212.5MHz. The ICS840002-32 uses ICS’ 3rd generation
low phase noise VCO technology and can achieve 1ps or
lower typical rms phase jitter, easily meeting Fibre Channel
and Serial ATA jitter requirements. The ICS840002-32 is
packaged in a small 8-pin TSSOP package.
HiPerClockS
ICS
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
Two LVCMOS/LVTTL outputs, 15
Ω typical output impedance
Crystal oscillator interface
Output frequency range: 75MHz and 106.25MHz,
or 212.5MHz
RMS phase jitter at 106.25MHZ (637kHz - 5MHz):
0.86ps (typical)
Full 3.3V or 3.3V core/2.5V output supply mode
0°C to 70°C ambient operating temperature
XTAL_IN
XTAL_OUT
FemtoClock
ICS840002-32
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm
package body
G Package
Top View
VDD
XTAL_OUT
XTAL_IN
GND
1
2
3
4
SEL
Q0
VDDO
Q1
8
7
6
5
Q0
Q1
SEL
SELECT FUNCTION TABLE
t
u
p
n
I)
z
H
M
(
e
g
n
a
R
y
c
n
e
u
q
e
r
F
t
u
p
t
u
O
L
E
S0
Q1
Q
05
75
2
.
6
0
1
15
75
.
2
1
2
26.5625MHz
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.
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