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SI4112 Dataheets PDF



Part Number SI4112
Manufacturers Silicon Laboratories
Logo Silicon Laboratories
Description DUAL-BAND RF SYNTHESIZER
Datasheet SI4112 DatasheetSI4112 Datasheet (PDF)

Si4133 Si4123/22/13/12 D U A L - B A N D R F S Y N T H E S I Z E R W I T H I N TE G R A T E D V C O S F OR W I R E L E S S C O M M U N I C A T I O N S FEATURES  Dual-band RF synthesizers RF1:      900 MHz to 1.8 GHz RF2: 750 MHz to 1.5 GHz    IF synthesizer IF: 62.5 to 1000 MHz Integrated VCOs, loop filters,  varactors, and resonators Minimal (2) number of external components required Low phase noise Programmable powerdown modes 1 µA standby current 18 mA typical supply cu.

  SI4112   SI4112


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Si4133 Si4123/22/13/12 D U A L - B A N D R F S Y N T H E S I Z E R W I T H I N TE G R A T E D V C O S F OR W I R E L E S S C O M M U N I C A T I O N S FEATURES  Dual-band RF synthesizers RF1:      900 MHz to 1.8 GHz RF2: 750 MHz to 1.5 GHz    IF synthesizer IF: 62.5 to 1000 MHz Integrated VCOs, loop filters,  varactors, and resonators Minimal (2) number of external components required 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 Lead-free Ordering Information: See page 31. and RoHS compliant Applications      Pin Assignments Dual-band communications Digital cellular telephones GSM 850, E-GSM 900, DCS 1800, PCS 1900 Digital cordless phones Analog cordless phones Wireless local loop Si4133-GT SCLK SDATA GNDR RFLD 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 SEN VDDI IFOUT GNDI IFLB IFLA GNDD VDDD GNDD XIN PWDN AUXOUT Description http://www.DataSheet4U.net/ RFLC GNDR RFLB RFLA GNDR GNDR RFOUT The Si4133 is a monolithic integrated circuit that performs both IF and dualband 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 threewire serial interface. Functional Block Diagram VDDR XIN SDATA IFOUT GNDR Reference Amplifier Powerdown Control R Si4133-GM SCLK RF1 PWDN N R Phase Detector RF2 RFOUT GNDR 28 27 26 25 24 23 22 1 2 3 4 5 6 7 8 GNDR SEN VDDI RFLB GNDI Phase Detector RFLA 21 20 19 GNDI IFLB IFLA GNDD VDDD GNDD XIN SDATA SCLK SEN Serial Interface 22-bit Data Register RFLC RFLD RFLD RFLC GNDR RFLB N R Phase Detector IF GND Pad 18 17 16 15 AUXOUT Test Mux IFDIV IFOUT RFLA GNDR PWDN GNDR Patents pending Rev. 1.61 1/10 Copyright © 2010 by Silicon Laboratories Si4133 RFOUT GNDD VDDR IFLB AUXOUT N IFLA 9 10 11 12 13 14 datasheet pdf - http://www.DataSheet4U.net/ Si4133 http://www.DataSheet4U.net/ 2 Rev. 1.61 datasheet pdf - http://www.DataSheet4U.net/ Si4133 TABLE O F C ONTENTS Section Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. Typical Application Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.1. Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.2. Setting the VCO Center Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.3. Extended Frequency Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.4. Self-Tuning Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.5. Output Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.6. PLL Loop Dynamics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 3.7. RF and IF Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.8. Reference Frequency Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.9. Powerdown Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.10. Auxiliary Output (AUXOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4. Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 5. Pin Descriptions: Si4133-GT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 6. Pin Descriptions: Si4133-GM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 8. Si4133 Derivative Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 9. Package Outline: Si4133-GT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 10. Package Outline: Si4133-GM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 http://ww.


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