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參數(shù)資料
| 型號： | ICS843003AG |
| 英文描述： | FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | FEMTOCLOCKS晶體到3.3的LVPECL頻率合成器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 295K |
| 代理商： | ICS843003AG |
843003AG
www.icst.com/products/hiperclocks.html
REV. A JULY 27, 2004
1
Integrated
Circuit
Systems, Inc.
ICS843003
FEMTOCLOCKSCRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS843003 is a 3 differential output LVPECL
Synthesizer designed to generate Ethernet refer-
ence clock frequencies and is a member of the
HiPerClocks family of high performance clock
solutions from ICS. Using a 31.25MHz or
26.041666MHz, 18pF parallel resonant crystal, the following fre-
quencies can be generated based on the settings of 4 frequency
select pins (DIV_SEL[A1:A0], DIV_SEL[B1:B0]): 625MHz,
312.5MHz, 156.25MHz, and 125MHz.The 843003 has 2 output
banks, Bank A with 1 differential LVPECL output pair and Bank
B with 2 differential LVPECL output pairs.
The two banks have their own dedicated frequency select pins
and can be independently set for the frequencies mentioned
above.The ICS843003 uses ICS’3rd generation low phase noise
VCO technology and can achieve 1ps or lower typical rms phase
jitter, easily meeting Ethernet jitter requirements.The ICS843003
is packaged in a small 24-pin TSSOP package.
FEATURES
Three 3.3V LVPECL outputs on two banks, A Bank with
one LVPECL pair and B Bank with 2 LVPECL output pairs
Using a 31.25MHz or 26.041666 crystal, the two output
banks can be independently set for 625MHz, 312.5MHz,
156.25MHz or 125MHz
Selectable crystal oscillator interface or LVCMOS/LVTTL
single-ended input
VCO range: 560MHz to 700MHz
RMS phase jitter @ 156.25MHz (1.875MHz - 20MHz):
0.51ps (typical)
RMS phase noise at 156.25MHz
Phase noise:
Offset
Noise Power
100Hz ............... -96.8 dBc/Hz
1KHz .............. -119.1 dBc/Hz
10KHz .............. -126.4 dBc/Hz
100KHz .............. -127.0 dBc/Hz
Full 3.3V supply mode
0°C to 70°C ambient operating temperature
Industrial temperature available upon request
HiPerClockS
ICS
0
1
0
1
Phase
Detector
VCO
625MHz
0 = ÷20 (default)
1 = ÷24
0 0
÷1
0 1
÷2 (default)
1 0
÷4
1 1
÷5
0 0
÷1
0 1
÷2
1 0
÷4 (default)
1 1
÷5
FB_DIV
OSC
BLOCK DIAGRAM
OEA
DIV_SELA[1:0]
VCO_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
XTAL_SEL
FB_DIV
DIV_SELB[1:0]
MR
OEB
QA0
nQA0
QB0
nQB0
QB1
nQB1
Pulldown
Pullup
PIN ASSIGNMENT
ICS843003
24-Lead TSSOP
4.40mm x 7.8mm x 0.92mm
package body
G Package
Top View
DIV_SELB0
VCO_SEL
MR
VCCO_A
QA0
nQA0
OEB
OEA
FB_DIV
VCCA
VCC
DIV_SELA0
1
2
3
4
5
6
7
8
9
10
11
12
DIV_SELB1
VCCO_B
QB0
nQB0
QB1
nQB1
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
VEE
DIV_SELA1
24
23
22
21
20
19
18
17
16
15
14
13
Pulldown
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843003AGI-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003AGI-01LF | 功能描述:IC SYNTHESIZER LVPECL 24-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標準包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ICS843003AGI-01LFT | 功能描述:IC SYNTHESIZER LVPECL 24-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標準包裝:1,000 系列:- 類型:時鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應商設備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
| ICS843003AGI-01T | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003AGLF | 功能描述:IC SYNTHESIZER LVPECL 24-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標準包裝:1,000 系列:- 類型:時鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應商設備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
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