參數(shù)資料
型號: ICS843023AGT
元件分類: XO, clock
英文描述: 320 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): 1/11頁
文件大小: 219K
代理商: ICS843023AGT
843023AG
www.icst.com/products/hiperclocks.html
REV. A JUNE 29, 2005
1
Integrated
Circuit
Systems, Inc.
ICS843023
FEMTOCLOCKSCRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
GENERAL DESCRIPTION
The ICS843023 is a Gigabit Ethernet Clock
Generator and a member of the HiPerClocksTM
family of high performance devices from ICS. The
ICS843023 uses a 25MHz crystal to synthesize
250MHz.The ICS843023 has excellent phase jitter
performance, over the 1.875MHz – 20MHz integration range.
The ICS843023 is packaged in a small 8-pin TSSOP, making it
ideal for use in systems with limited board space.
FEATURES
1 differential 3.3V LVPECL output
Crystal oscillator interface designed for 25MHz,
18pF parallel resonant crystal
Output frequency range: 245MHz - 320MHz
VCO range: 490MHz - 640MHz
RMS phase jitter @ 250MHz, using a 25MHz crystal
(12kHz - 20MHz): 0.39ps (typical)
Phase noise:
Offset
Noise Power
100Hz ............... -86.3 dBc/Hz
1kHz .............. -114.6 dBc/Hz
10kHz .............. -125.6 dBc/Hz
100kHz ................ -126 dBc/Hz
3.3V operating supply
0°C to 70°C ambient operating temperature
Lead-Free package fully RoHS compliant
HiPerClockS
ICS
ICS843023
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm package body
G Package
Top View
VCC
XTAL_OUT
XTAL_IN
VEE
1
2
3
4
Q
nQ
VCC
OE
8
7
6
5
BLOCK DIAGRAM
PIN ASSIGNMENT
OSC
Phase
Detector
VCO
÷2
(fixed)
÷20
(fixed)
XTAL_IN
XTAL_OUT
Q
nQ
25MHz
OE
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