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Functional Description The PMB2201 is a modulator and mixer circuit with high integration level. It includes a direct quadrature modulator and a double balanced Gilbert cell mixer with according bias circuitry. Features • Direct quadrature modulator with separate additional double balanced active mixer • Direct quadrature modulation • LO frequency range from 800 MHz to 1.5 GHz • Generation of orthogonal carriers without external elements and without trimming • typ. 40 dB carrier rejection, typ. 44 dB SSB rejection • typ. 43 dB rejection of third order products at 1 Vpp A/B drive level at fLO = 1.5 GHz • 3 dBm output power with appropriate output power matching network and at 1Vpp A/B baseband drive level • Double balanced Gilbert cell mixer • RF and IF frequency range from DC to 2.5 GHz • typ. 39 dB carrier rejection • low noise • Supply voltage range from 2.7 V to 4.5 V • Power down mode • P-TSSOP-24 package • Temperature range -30° to 85°C Applications: • Vector modulated digital mobile cellular systems as GSM, PDC-800, PDC-1.5, DAMPS etc. • Various modulation schemes, such as PM, PSK, FSK, QAM, QPSK, GMSK etc. • Analog systems with FM and AM modulation • Space and power saving optimizations of existing discrete transmitter circuits
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