PDF SI4123 Data sheet ( Hoja de datos )

Número de pieza	SI4123
Descripción	(SI4112 - SI4133) DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS
Fabricantes	Silicon Laboratories
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No Preview Available ! Si4133 Si4123/22/13/12 DUAL-BAND RF SYNTHESIZER WITH INTEGRATED VCOS FOR WIRELESS COMMUNICATIONS FEATURES  Dual-band RF synthesizers  Low phase noise RF1: 900 MHz to 1.8 GHz  Programmable powerdown modes RF2: 750 MHz to 1.5 GHz  1 µA standby current  IF synthesizer  18 mA typical supply current IF: 62.5 to 1000 MHz  2.7 to 3.6 V operation  Integrated VCOs, loop filters,  Packages: 24-pin TSSOP, varactors, and resonators 28-lead QFN  Minimal (2) number of external Lead-free and RoHS compliant components required Applications  Dual-band communications  Digital cellular telephones GSM 850, E-GSM 900, DCS 1800, PCS 1900  Digital cordless phones  Analog cordless phones  Wireless local loop Description http://www.DataSheet4U.net/ 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. Functional Block Diagram Ordering Information: See page 31. Pin Assignments Si4133-GT SCLK SDATA GNDR RFLD RFLC GNDR RFLB RFLA GNDR GNDR RFOUT VDDR 1 2 3 4 5 6 7 8 9 10 11 12 24 SEN 23 VDDI 22 IFOUT 21 GNDI 20 IFLB 19 IFLA 18 GNDD 17 VDDD 16 GNDD 15 XIN 14 PWDN 13 AUXOUT XIN PWDN Reference Amplifier Powerdown Control SDATA SCLK SEN AUXOUT Serial Interface 22-bit Data Register Test Mux R Phase Detector RF1 N R Phase Detector RF2 N R Phase Detector IF N IFDIV RFLA RFLB RFOUT RFLC RFLD IFOUT IFLA IFLB Si4133-GM GNDR RFLD RFLC GNDR RFLB RFLA GNDR 28 27 26 25 24 23 22 1 21 GNDI 2 20 IFLB 3 19 IFLA 4 GND 18 GNDD Pad 5 17 VDDD 6 16 GNDD 7 15 XIN 8 9 10 11 12 13 14 Rev. 1.61 1/10 Patents pending Copyright © 2010 by Silicon Laboratories Si4133 datasheet pdf - http://www.DataSheet4U.net/ 1 page Si4133 Table 3. DC Characteristics (VDD = 2.7 to 3.6 V, TA = –40 to 85 °C) Parameter Total Supply Current1 RF1 Mode Supply Current1 RF2 Mode Supply Current1 IF Mode Supply Current1 Symbol Test Condition RF1 and IF operating Min — — — — Standby Current PWDN = 0 High Level Input Voltage2 Low Level Input Voltage2 High Level Input Current2 Low Level Input Current2 High Level Output Voltage3 Low Level Output Voltage3 VIH VIL IIH VIH = 3.6 V, VDD = 3.6 V IIL VIL = 0 V, VDD= 3.6 V VOH IOH = –500 µA VOL IOH = 500 µA Notes: 1. RF1 = 1.6 GHz, RF2 = 1.1 GHz, IFOUT = 550 MHz, LPWR = 0. 2. For signals SCLK, SDATA, SEN, and PWDN. 3. For signal AUXOUT. http://www.DataSheet4U.net/ — 0.7 VDD — –10 –10 VDD–0.4 — Typ 18 10 9 8 1 — — — — — — Max 27 16 16 13 — — 0.3 VDD 10 Unit mA mA mA mA µA V V µA 10 µA —V 0.4 V Rev. 1.61 5 datasheet pdf - http://www.DataSheet4U.net/ 5 Page Si4133 TRACE A: Ch1 FM Main Time A Marker 1.424 kHz 174.04471 us Real 160 Hz /div 711.00 Hz 176 Hz Start: 0 s Stop: 399.6003996 us Figure 6. Typical Transient Response RF1 at 1.6 GHz with 200 kHz Phase Detector Update Frequencyhttp://www.DataSheet4U.net/ Rev. 1.61 11 datasheet pdf - http://www.DataSheet4U.net/ 11 Page

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