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MAX3679A PDF预览

MAX3679A

更新时间: 2024-02-15 11:05:13
品牌 Logo 应用领域
美信 - MAXIM 晶体时钟发生器
页数 文件大小 规格书
11页 387K
描述
+3.3V, Low-Jitter Crystal to LVPECL Clock Generator

MAX3679A 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Transferred包装说明:QCCN, LCC32,.2SQ,20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.52
JESD-30 代码:S-PQCC-N32JESD-609代码:e3
湿度敏感等级:1端子数量:32
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:QCCN
封装等效代码:LCC32,.2SQ,20封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):225
电源:3.3 V认证状态:Not Qualified
子类别:Clock Generators最大压摆率:100 mA
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIEDuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

MAX3679A 数据手册

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19-4858; Rev 0; 8/09  
+3.3V, Low-Jitter Crystal to LVPECL  
Clock Generator  
MX3679A  
General Description  
Features  
The MAX3679A is a low-jitter precision clock generator  
with the integration of three LVPECL and one LVCMOS  
outputs optimized for Ethernet applications. The device  
integrates a crystal oscillator and a phase-locked loop  
(PLL) clock multiplier to generate high-frequency clock  
outputs for Ethernet applications.  
Crystal Oscillator Interface: 25MHz  
CMOS Input: 25MHz  
Output Frequencies for Ethernet  
62.5MHz, 125MHz, 156.25MHz, 312.5MHz  
Low Jitter  
0.14ps  
(1.875MHz to 20MHz)  
(12kHz to 20MHz)  
RMS  
Maxim’s proprietary PLL design features ultra-low jitter  
0.36ps  
RMS  
(0.36ps  
) and excellent power-supply noise rejection,  
RMS  
minimizing design risk for network equipment.  
Excellent Power-Supply Noise Rejection  
No External Loop Filter Capacitor Required  
Applications  
Ordering Information  
Ethernet Networking Equipment  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX3679AETJ+  
-40°C to +85°C  
32 TQFN-EP*  
Pin Configuration appears at end of data sheet.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
Typical Application Circuit  
+3.3V 5%  
0.1μF  
0.1μF  
0.1μF  
0.01μF  
0.1μF  
10.5Ω  
V
CC  
V
V
V
DDO_A  
CCO_A  
CCO_B  
10μF  
36Ω  
V
QA_C  
Z = 50Ω  
ASIC  
ASIC  
CCA  
0
125MHz  
125MHz  
0.1μF  
MR  
REF_IN  
QA  
QA  
Z = 50Ω  
0
Z = 50Ω  
0
IN_SEL  
QAC_OE  
QA_OE  
50Ω  
50Ω  
50Ω  
50Ω  
50Ω  
50Ω  
QB0_OE  
QB1_OE  
(V - 2V)  
CC  
V
CC  
MAX3679A  
QB0  
QB0  
Z = 50Ω  
0
ASIC  
Z = 50Ω  
0
BYPASS  
SELA1  
SELA0  
SELB1  
SELB0  
RES1  
312.5MHz  
312.5MHz  
(V - 2V)  
CC  
QB1  
QB1  
Z = 50Ω  
0
ASIC  
RES0  
Z = 50Ω  
0
X_OUT  
X_IN  
GND  
GNDO_A  
25MHz  
(C = 18pF)  
(V - 2V)  
CC  
L
33pF  
27pF  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  

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