TRF3040

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 Modulator D Control Logic for Power-Down Modes D Single-Sideband Suppressed Carrier (SSBSC) Converter to Generate TX Carrier D 200-MHz TXIF Synthesizer and Oscillator D Variable Gain Amplifier (VGA) With 50 dB of Dynamic Range D 900-MHz Power Amplifier (PA) Driver With 9 dBm Typical Output Power D Reference and Clock Buffers D 158 mA Typical Total Operating Current at 3.75 V Supply D 48-Pin Quad Flatpack (LQFP) PT PACKAGE (TOP VIEW) PHI RF RN VSS VDDA INA RA PHA VDDA RCLK MCLK XTAL+ PHP VDDA RXLO+ RXLO– VSSA VCCP TXLO+ TXLO– VSSP PHSOUT IPEAK TANK+ 48 47 46 45 44 43 42 41 40 39 38 37 1 36 2 35 3 34 4 33 5 32 6 31 7 30 8 29 9 28 10 27 11 26 12 25 13 14 15 16 17 18 19 20 21 22 23 24 XTAL– TXEN DATA CLOCK LOCK STROBE VSSA VDD I I Q Q TANK– VDDA VSSA VSSA VSSA VSSA GND DUALTX+ VSSA DUALTX– VSSA VDDA These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS ...