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SI4133W - RF SYNTHESIZER

General Description

The Si4133W is a monolithic integrated circuit that performs RF and IF synthesis for GSM/GPRS and W-CDMA wireless communications.

In dualmode GSM/UMTS handsets, the Si4133W meets demanding requirements for very low phase noise and fast settling time for both modes.

Key Features

  • Dual RF synthesizers RF1: 2.3 GHz to 2.6 GHz RF2: 750 MHz to 1.7 GHz IF synthesizer IF: 62.5 MHz to 1.0 GHz Integrated VCOs, loop filters, dividers, and phase detectors Minimal external components Continuous operation over a wide temperature range Fast settling time: 200 µsec Low phase noise 5 µA standby current 28-lead MLP, 5 x 5 mm Ordering Information: See page 28.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Si4133W RF S Y N T H E S I Z E R W I T H I N T E G R A T E D V C O S F O R W- CD M A A N D G S M / U M T S W I R E L E S S C O M M U N I C A T I O N S Features Dual RF synthesizers RF1: 2.3 GHz to 2.6 GHz RF2: 750 MHz to 1.7 GHz IF synthesizer IF: 62.5 MHz to 1.0 GHz Integrated VCOs, loop filters, dividers, and phase detectors Minimal external components Continuous operation over a wide temperature range Fast settling time: 200 µsec Low phase noise 5 µA standby current 28-lead MLP, 5 x 5 mm Ordering Information: See page 28.