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841N4830BKILFT PDF预览

841N4830BKILFT

更新时间: 2024-01-19 19:19:38
品牌 Logo 应用领域
艾迪悌 - IDT 时钟外围集成电路晶体
页数 文件大小 规格书
28页 491K
描述
FemtoClock NG Crystal-to-HCSL Frequency Synthesizer

841N4830BKILFT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:VFQFPN
包装说明:HVQCCN,针数:32
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.76
JESD-30 代码:S-XQCC-N32JESD-609代码:e3
长度:5 mm湿度敏感等级:3
端子数量:32最高工作温度:85 °C
最低工作温度:-40 °C最大输出时钟频率:100 MHz
封装主体材料:UNSPECIFIED封装代码:HVQCCN
封装形状:SQUARE封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260主时钟/晶体标称频率:25 MHz
座面最大高度:1 mm最大供电电压:3.6 V
最小供电电压:3 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
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 SPECIFIED
宽度:5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, OTHER
Base Number Matches:1

841N4830BKILFT 数据手册

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®
FemtoClock NG Crystal-to-HCSL  
841N4830  
Datasheet  
Frequency Synthesizer  
General Description  
Features  
The 841N4830 is a 3 HCSL, 1 LVPECL and 2 LVCMOS output  
Synthesizer optimized to generate PCI Express reference clock  
frequencies. The device uses IDT’s fourth generation FemtoClock®  
NG technology for synthesis of high clock frequency at very low  
phase noise. It provides low power consumption with good power  
supply noise rejection. Using a 25MHz, 12pF parallel resonant  
crystal, the following frequencies can be generated: 100MHz,  
50MHz and 25MHz. Maximum rms phase jitter of 0.36ps, easily  
meets PCI Express jitter requirements. The 841N4830 is packaged  
in a small 32-pin VFQFN package.  
Fourth generation FemtoClock® Next Generation (NG) technology  
Three differential HCSL outputs, one differential LVPECL and  
two single-ended LVCMOS/LVTTL outputs  
Crystal oscillator interface designed for a 25MHz, 12pF parallel  
resonant crystal  
CLK/nCLK input pair can accept the following differential input  
levels: LVPECL, LVDS, HCSL  
A 25MHz crystal generates output frequencies of: 100MHz,  
50MHz and 25MHz  
VCO frequency: 2GHz  
RMS Phase Jitter @ 100MHz, (12kHz – 20MHz) using a 25MHz  
crystal: 0.36ps (maximum)  
Power supply noise rejection PSNR: -45dB (typical)  
PCI Express Gen 2 (5 Gb/s) jitter compliant  
Full 3.3V supply mode  
-40°C to 85°C ambient operating temperature  
Available in lead-free (RoHS 6) package  
Block Diagram  
Pin Assignment  
Pulldown  
nOE_REF  
25MHz LVPECL  
REF_OUT  
32 31 30 29 28 27 26 25  
nREF_OUT  
Pulldown  
PLL_BYPASS  
1
2
3
4
5
6
7
8
PLL_BYPASS  
nOE_REF  
nOEB  
QA1  
24  
23  
22  
21  
20  
Pulldown  
nOEA  
nQA1  
841N4830  
32-Lead VFQFN  
5mm x 5mm x 0.925mm  
package body  
K Package  
25MHz  
V
DDO  
XTAL_IN  
100MHz HCSL  
3
1
DIV2_QB  
VDDA  
QA2  
nQA2  
GND  
QA3  
0
OSC  
QA[2:0]  
PFD  
&
LPF  
FemtoClock® NG  
VCO  
2GHz  
÷20  
3
XTAL_OUT  
nQA[2:0]  
0
CLK  
19  
18  
17  
Pulldown  
Top View  
CLK  
100MHz LVCMOS  
QA3  
nCLK  
1
Pullup  
Pullup  
nCLK  
VDDO_REF  
V
DDO_QA3  
CLK_SEL  
9
10 11 12 13 14 15 16  
÷1  
÷2  
0
1
IREF  
100/50MHz  
LVCMOS  
QB  
÷80  
Pullup  
DIV2_QB  
nOEB  
Pulldown  
©2016 Integrated Device Technology, Inc.  
1
Revision F, May 23, 2016  

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