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參數(shù)資料
| 型號(hào)： | ICS840004AG-01LFT |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 175 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| 封裝： | 6.50 X 4.40 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-20 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 418K |
| 代理商： | ICS840004AG-01LFT |
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Integrated
Circuit
Systems, Inc.
840004AG-01
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 28, 2006
1
ICS840004-01
FEMTOCLOCKSCRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS840004-01 is a 4 output LVCMOS/LVTTL
Synthesizer optimized to generate Ethernet
reference clock frequencies and is a member of
the HiPerClocksTM family of high performance
clock solutions from ICS. Using a 25MHz, 18pF
parallel resonant crystal, the following frequencies can be
generated based on the 2 frequency select pins (F_SEL1:0):
156.25MHz, 125MHz, and 62.5MHz. The ICS840004-01 uses
ICS’ 3rd generation low phase noise VCO technology and can
achieve 1ps or lower typical random rms phase jitter, easily
meeting Ethernet jitter requirements. The ICS840004-01 is
packaged in a small 20-pin TSSOP package.
HiPerClockS
ICS
BLOCK DIAGRAM
FEATURES
Four LVCMOS/LVTTL outputs,
17
Ω typical output impedance
Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
Output frequency Range: 56MHz - 175MHz
VCO Range: 560MHz - 700MHz
RMS phase jitter at 156.25MHz (1.875MHz - 20MHz):
0.52ps (typical) design target
Phase noise:
Offset
Noise Power
100Hz ............... -94.9 dBc/Hz
1kHz ............. -119.6 dBc/Hz
10kHz ............. -128.9 dBc/Hz
100kHz ............. -129.2 dBc/Hz
Full 3.3V or 3.3V core/2.5V output supply mode
0°C to 70°C ambient operating temperature
Available in both standard and lead-free RoHS-compliant
packages
Q0
Q1
Q2
Q3
OE
F_SEL1:0
nPLL_SEL
nXTAL_SEL
XTAL_IN
XTAL_OUT
REF_CLK
MR
OSC
Phase
Detector
VCO
M = ÷25 (fixed)
F_SEL1:0
0 0 ÷4
0 1 ÷5
1 0 ÷10
1 1 ÷5 (default)
0
1
0
2
N
25MHz
Pullup
Pulldown
Pullup:Pullup
Pulldown
FREQUENCY SELECT FUNCTION TABLE FOR ETHERNET FREQUENCIES
PIN ASSIGNMENT
ICS840004-01
20-Lead TSSOP
6.5mm x 4.4mm x 0.92mm
package body
G Package
Top View
F_SEL0
nc
nXTAL_SEL
REF_CLK
OE
MR
nPLL_SEL
VDDA
nc
VDD
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
F_SEL1
GND
Q0
Q1
VDDO
Q2
Q3
GND
XTAL_IN
XTAL_OUT
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DATA SHEET
ICS840004-01
IDT / ICS FEMTOCLOCKS CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004-01
1
FEMTOCLOCKS CRYSTAL-TO-LVCMOS/LVTTL
FREQUENCY SYNTHESIZER
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS840004AG-01LF | 175 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| ICS840004AGI-01LFT | 175 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| ICS840008AR-01T | 160 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS840008BR-01LF | 160 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS840014AGI | 106.25 MHz, OTHER CLOCK GENERATOR, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS840004AG-01T | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER |
| ICS840004AG-11 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER |
| ICS840004AG-11LF | 功能描述:IC FREQ SYNTHESIZER 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)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(pán) 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
| ICS840004AG-11LFT | 功能描述:IC FREQ SYNTHESIZER 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)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(pán) 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
| ICS840004AG-11T | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER |
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