TRF3040 Datasheet (Texas Instruments)

TRF3040, MODULATOR/SYNTHESIZER

The TRF3040 is an integrated transmit modulator/synthesizer circuit suitable for 900-MHz analog and digital cellular telephones.

It consists of a transmit intermediate frequency (TXIF) synthesizer and oscillator, a single-sideband suppressed carrier (SSBSC) converter, a direct conversion I/Q modulat

D 2-GHz Main Synthesizer, Which Incorporates a Dual-Mode 32/33 and 64/65 Prescaler for Fractional-N Operation D 200-MHz Auxiliary Synthesizer, Which Incorporates an 8/9 Prescaler D Separate Supply Terminals for Main and Auxiliary Charge Pumps D Internal Compensation for Fractional Spurs D Low Phase Noise D Normal and Integral Charge Pump Outputs D Fully Programmable Main and Auxiliary Dividers D Serial Data Interface TRF3040 MODULATOR/SYNTHESIZER SLWS057 AUGUST 1999 D Direct I/Q Modul