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SI4133

更新时间： 2024-11-19 12:02:55
品牌 Logo 应用领域
芯科 - SILICON 无线通信
页数 文件大小 规格书
36页 318K
描述
DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS

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中文翻译

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SI4133 数据手册

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Si4133  
Si4123/22/13/12  
DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS  
FOR WIRELESS COMMUNICATIONS  
FEATURES  
Dual-band RF synthesizers  
RF1: 900 MHz to 1.8 GHz  
RF2: 750 MHz to 1.5 GHz  
IF synthesizer  
Low phase noise  
Programmable powerdown modes  
1 µA standby current  
18 mA typical supply current  
2.7 to 3.6 V operation  
Packages: 24-pin TSSOP,  
28-lead QFN  
IF: 62.5 to 1000 MHz  
Integrated VCOs, loop filters,  
varactors, and resonators  
Minimal (2) number of external  
components required  
Ordering Information:  
Lead-free and RoHS compliant  
See page 31.  
Applications  
Pin Assignments  
Dual-band communications  
Digital cellular telephones GSM 850, E-GSM 900, DCS 1800,  
PCS 1900  
Digital cordless phones  
Analog cordless phones  
Si4133-GT  
SCLK  
SDATA  
GNDR  
RFLD  
1
2
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
SEN  
VDDI  
IFOUT  
GNDI  
3
Wireless local loop  
4
Description  
RFLC  
5
IFLB  
GNDR  
6
IFLA  
The Si4133 is a monolithic integrated circuit that performs both IF and dual-  
band RF synthesis for wireless communications applications. The Si4133  
includes three VCOs, loop filters, reference and VCO dividers, and phase  
detectors. Divider and powerdown settings are programmable with a three-  
wire serial interface.  
7
RFLB  
RFLA  
GNDD  
8
VDDD  
GNDD  
XIN  
9
GNDR  
GNDR  
RFOUT  
VDDR  
10  
11  
12  
PWDN  
AUXOUT  
Functional Block Diagram  
Si4133-GM  
Reference  
Amplifier  
XIN  
RFLA  
RFLB  
R  
R  
R  
Phase  
Detector  
RF1  
RF2  
IF  
Powerdown  
Control  
PWDN  
28 27 26 25 24 23  
22  
RFOUT  
N  
N  
N  
1
2
3
4
5
6
7
21  
20 IFLB  
19  
GNDR  
RFLD  
RFLC  
GNDR  
RFLB  
RFLA  
GNDR  
GNDI  
SDATA  
SCLK  
RFLC  
RFLD  
Serial  
Interface  
Phase  
Detector  
IFLA  
22-bit  
Data  
Register  
GND  
Pad  
SEN  
18 GNDD  
17 VDDD  
16  
GNDD  
Test  
Mux  
Phase  
Detector  
AUXOUT  
IFDIV  
IFOUT  
15 XIN  
8
9
10 11 12 13 14  
IFLA  
IFLB  
Patents pending  
Rev. 1.61 1/10  
Copyright © 2010 by Silicon Laboratories  
Si4133  
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