参数资料
型号: ICS842023BGLF
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/15页
文件大小: 0K
描述: IC CLK GEN ETHERNET 25MHZ 8TSSOP
标准包装: 96
系列: HiPerClockS™, FemtoClock™
类型: 时钟/频率发生器
PLL:
主要目的: 以太网
输入: 晶体
输出: HSTL
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 无/是
频率 - 最大: 340MHz
电源电压: 2.375 V ~ 3.465 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-TSSOP
包装: 管件
FEMTOCLOCK CRYSTAL-TO-HSTL CLOCK GENERATOR
ICS842023
IDT / ICS HSTL CLOCK GENERATOR
1
ICS842023BG REV. A NOVEMBER 2, 2012
General Description
The ICS842023 is an Ethernet Clock Generator. For Ethernet
applications, a 25MHz crystal is used to generate 250MHz. The
ICS842023 uses IDT 3rd generation low phase noise VCO
technology and can achieve <1ps rms phase jitter, easily meeting
Ethernet jitter requirements. The ICS842023 is packaged in a
small 8-pin TSSOP, making it ideal for use in systems with limited
board space.
Features
One differential HSTL output pair
Crystal oscillator interface, 18pF parallel resonant crystal
(24.5MHz – 34MHz)
Output frequency range: 245MHz – 340MHz
VCO range: 490MHz – 680MHz
RMS phase jitter at: 250MHz, using a 25MHz crystal
(1.875MHz – 20MHz): 0.36ps (typical)
Full 3.3V or 2.5V output supply modes
0°C to 70°C ambient operating temperature
Available in lead-free (RoHS 6) packaging
Frequency Table
Inputs
Output Frequency (MHz)
Crystal Frequency (MHz)
M
N
Multiplication Value M/N
25
20
2
10
250
1
2
3
4
8
7
6
5
VDDA
GND
XTAL_OUT
XTAL_IN
VDD
Q
nQ
OE
OSC
Phase
Detector
VCO
490MHz - 680MHz
M = ÷20 (fixed)
N = ÷2 (fixed)
Q
nQ
OE
XTAL_IN
XTAL_OUT
Pullup
Pin Assignment
ICS842023
8 Lead TSSOP
4.40mm x 3.0mm x 0.925 package body
G Package
Top View
Block Diagram
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相关代理商/技术参数
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