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參數(shù)資料
| 型號： | 021AL |
| 英文描述： | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| 中文描述： | FEMTOCLOCKS -商標(biāo)晶體至3.3V的LVPECL時鐘發(fā)生器 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 189K |
| 代理商： | 021AL |
843021AG
www.icst.com/products/hiperclocks.html
REV. C MARCH 31, 2005
1
Integrated
Circuit
Systems, Inc.
ICS843021
FEMTOCLOCKSCRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
GENERAL DESCRIPTION
The ICS843021 is a Gigabit Ethernet Clock
Generator and a member of the HiPerClocksTM
family of high performance devices from ICS. The
ICS843021 uses a 25MHz crystal to synthesize
125MHz.The ICS843021 has excellent phase jitter
performance, over the 1.875MHz – 20MHz integration range.
The ICS843021 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 22.4MHz - 28MHz,
18pF parallel resonant crystal
Output frequency range: 112MHz - 140MHz
VCO range: 560MHz to 700MHz
Output duty cycle range: 49% - 51%
RMS phase jitter @ 125MHz, using a 25MHz crystal
(1.875MHz - 20MHz): 0.37ps (typical)
RMS phase noise at 125MHz (typical)
Offset
Noise Power
100Hz ............... -94.2 dBc/Hz
1KHz .............. -122.8 dBc/Hz
10KHz .............. -132.2 dBc/Hz
100KHz .............. -131.3 dBc/Hz
3.3V operating supply
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
Lead-Free package fully RoHS compliant
HiPerClockS
ICS
ICS843021
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm package body
G Package
Top View
VCCA
VEE
XTAL_OUT
XTAL_IN
1
2
3
4
VCC
Q0
nQ0
nc
8
7
6
5
BLOCK DIAGRAM
PIN ASSIGNMENT
OSC
Phase
Detector
VCO
÷5
÷25
(fixed)
XTAL_IN
XTAL_OUT
nQ0
Q0
25MHz
FREQUENCY TABLE - TYPICAL APPLICATIONS
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5
25
2
1
6
.
6
23
3
1
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 021ASM | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Aluminum Capacitors Axial Standard Miniature |
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| 021-B | 功能描述:罩類、盒類及殼類產(chǎn)品 4.1 x 2.6 x 0.9 Black RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
| 021-G | 功能描述:罩類、盒類及殼類產(chǎn)品 4.1 x 2.6 x 0.9 Gray RoHS:否 制造商:Bud Industries 產(chǎn)品:Boxes 外部深度:6.35 mm 外部寬度:6.35 mm 外部高度:2.56 mm NEMA 額定值: IP 等級: 材料:Acrylonitrile Butadiene Styrene (ABS) 顏色:Red |
| 021-I ALMOND | 制造商:SERPAC Electronic Enclosures 功能描述:Enclosure; Plastic; 4.1 in. L x 2.610 in. W x 0.910 in. H; Almond |
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