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0.4 GHz to 4 GHz Quadrature Modulator (Rev. D)
Texas Instruments
Description
The TRF3703 is a very low-noise direct quadrature modulator, capable of converting complex modulated signals from baseband or IF directly up to RF. The TRF3703 is ideal for high-performance direct RF modulation from 400 MHz up to 4 GHz. The modulator is implemented as a double-balanced mixer. The RF output block consists of a differential to single-ended converter and an RF amplifier capable of driving a single-ended 50- load without any need of external components. The TRF3703 comes in two types, TRF370333 and TRF370315. The TRF370333 and TRF370315 devices have different common-mode voltage ratings at the I, Q baseband inputs. The TRF370333 requires a 3.3-V common-mode voltage, and the TRF370315 requires a 1.5-V common-mode voltage.
Features
75-dBc Single-Carrier WCDMA ACPR at -11-dBm Channel PowerVery Low Noise Floor: -163 dBm/HzOPI3 of 23 dBmP1dB of 9 dBmUnadjusted Carrier Feedthrough of -40 dBmUnadjusted Side-Band Suppression of -40 dBcSingle Supply: 4.5 V-5.5 V OperationSilicon Germanium TechnologyTRF370333 With 3.3-V CM at I, Q Baseband InputsTRF370315 With 1.5-V CM at I, Q Baseband InputsAPPLICATIONSCellular Base Transceiver Station Transmit ChannelCDMA: IS95, UMTS, CDMA2000, TD-SCDMATDMA: GSM, IS-136, EDGE/UWC-136Wireless Local LoopWireless MAN Wideband Transceivers
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