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