Product Summary

The SI4133T dual-band RF synthesizer is a monolithic integrated circuit that performs both IF and dualband RF synthesis for wireless communications applications. The device includes three VCOs, loop filters, reference and VCO dividers, and phase detectors. Divider and power-down settings are programmable through a three-wire serial interface. The applications of the SI4133T include Dual-Band Communications, Digital Cellular Telephones GSM, DCS1800, PCS1900, Digital Cordless Phones, Analog Cordless Phones and Wireless LAN and WAN.

Parametrics

SI4133T absolute maximum ratings: (1)DC Supply Voltage, VDD: –0.5 to 4.0 V; (2)Input Current, IIN: ±10 mA; (3)Input Voltage, VIN: –0.3 to VDD+0.3 V; (4)Storage Temperature Range, TSTG: –55 to 150 ℃.

Features

SI4133T features: (1)Dual-Band RF Synthesizers: RF1: 900 MHz to 1.8 GHz; RF2: 750 MHz to 1.5 GHz; (2)IF Synthesizer: IF: 62.5 MHz to 1000 MHz; (3)Integrated VCOs, Loop Filters, Varactors, and Resonators; (4)Minimal External Components Required; (5)Low Phase Noise; (6)Programmable Power Down Modes; (7)1 μA Standby Current; (8)18 mA Typical Supply Current; (9)2.7 V to 3.6 V Operation; (10)Packages: 24-Pin TSSOP, 28-Lead MLP.

Diagrams

SI4133T functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
Si4133T-BM
Si4133T-BM
Silicon Labs
RF Wireless Misc Aero RF Synthesizer
Data Sheet
Negotiable 
Si4133T-GM
Si4133T-GM
Silicon Labs
RF Wireless Misc Aero RF Synthesizer
Data Sheet
Negotiable