TRF3702

www.ti.com TRF3702 SLWS149 – SEPTEMBER 2004 1.5-GHz to 2.5-GHz QUADRATURE MODULATOR FEATURES 71-dBc Single-Carrier WCDMA ACPR at –14-dBm Channel Power P1dB of 7 dBm Typical Unadjusted Carrier Suppression 35 dBc at 2 GHz Typical Unadjusted Sideband Suppression 35 dBc at 2 GHz Very Low Noise Floor Differential or Single-Ended I, Q Inputs Convenient Single-Ended LO Input Silicon Germanium Technology RHC PACKAGE (TOP VIEW) GND QREF IREF IVIN QVIN GND GND LO 1 16 15 14 13 2 12 3 11 4 10 56789 GND GND VCC GND VCC PWD RFOUT GND APPLICATIONS Cellular Base Transceiver Station Transmit Channel IF Sampling Applications TDMA: GSM, IS-136, EDGE/UWC-136 CDMA: IS-95, UMTS, CDMA2000 Wireless Local Loop Wireless LAN IEEE 802.11 LMDS, MMDS Wideband Transceivers P0003-01 DESCRIPTION The TRF3702 is an ultralow-noise direct quadrature modulator that is capable of converting complex input signals from baseband or IF directly up to RF. An internal analog combiner sums the real and imaginary components of the RF outputs. This combined output can feed the RF preamp at frequencies of up to 2.5 GHz. The modulator is implemented as a double-balanced mixer. An internal local oscillator (LO) phase splitter accommodates a single-ended LO input, eliminating the need for a costly external balun. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and...