Si4112 - Skyworks

Si4112 DUAL-BAND RF SYNTHESIZER

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 Ordering Informati.

Features

erdown settings are programmable with a threewire serial interface. Functional Block Diagram Ordering Information: See page 31. Pin Assignments Si4133-GT SCLK 1 SDATA 2 GNDR 3 RFLD 4 RFLC 5 GNDR 6 RFLB 7 RFLA 8 GNDR 9 GNDR 10 RFOUT 11 VDDR 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.