參數(shù)資料
型號(hào): ICS840004AG-11LF
廠商: IDT, Integrated Device Technology Inc
文件頁(yè)數(shù): 1/13頁(yè)
文件大?。?/td> 0K
描述: IC FREQ SYNTHESIZER 20-TSSOP
標(biāo)準(zhǔn)包裝: 74
系列: HiPerClockS™, FemtoClock™
類型: 頻率合成器
PLL:
輸入: 晶體
輸出: LVCMOS,LVTTL
電路數(shù): 1
比率 - 輸入:輸出: 1:4
差分 - 輸入:輸出: 無(wú)/無(wú)
頻率 - 最大: 140MHz
除法器/乘法器: 是/無(wú)
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 管件
其它名稱: 840004AG-11LF
DATA SHEET
ICS840004AG-11 REVISION A SEPTEMBER 16, 2009
1
2009 Integrated Device Technology, Inc.
FemtoClock Crystal-to-LVCMOS/LVTTL
Frequency Synthesizer
ICS840004-11
General Description
The ICS840004-11 is a 4 output LVCMOS/LVTTL
Synthesizer optimized to generate Ethernet reference
clock frequencies and is a member of the
HiPerClocks family of high performance clock
solutions from IDT. Using a 25MHz, 18pF parallel
resonant crystal, 125MHz and 62.5MHz can be generated based on
one frequency select pin (F_SEL). The ICS840004-11 uses IDT’s 3rd
generation low phase noise VCO technology and can achieve 1ps or
lower typical random rms phase jitter, easily meeting Ethernet jitter
requirements. The ICS840004-11 is packaged in a small 20-pin
TSSOP package.
Features
Four single-ended LVCMOS/LVTTL outputs
17
typical output impedance
Crystal oscillator interface
Input frequency range: 22.4MHz to 28MHz
Output frequency range: 56MHz - 140MHz
VCO range: 560MHz - 700MHz
RMS phase jitter at 125MHz (1.875MHz – 20MHz):
0.70ps (typical)
Phase Noise:
Offset
Noise Power
100Hz
-95.5 dBc/Hz
1kHz
-123.6 dBc/Hz
10kHz
-132.8 dBc/Hz
100kHz
-133.4 dBc/Hz
Full 3.3V output supply mode
0°C to 70°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
Frequency Select Function Table for Ethernet Frequencies
HiPerClockS
ICS
Inputs
Output Frequency (MHz), 25MHz Reference
F_SEL
M Divider Value
N Divider Value
0
25
10
62.5
1
25
5
125 (default)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
nc
VDDA
nc
OE
nc
F_SEL
VDD
nc
GND
Q0
Q1
VDDO
Q2
Q3
GND
XTAL_IN
XTAL_OUT
OSC
VCO
M = ÷25 (fixed)
F_SEL
0 ÷10
1 ÷5 (default)
N
Phase
Detector
Q0
Q1
Q2
Q3
OE
F_SEL
XTAL_IN
XTAL_OUT
25MHz
Pullup
ICS840004-01
20-Lead TSSOP
6.5mm x 4.4mm x 0.925mm
package body
G Package
Top View
Pin Assignment
Block Diagram
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ICS840004AGI 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004AGI-01 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER
ICS840004AGI-01LF 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