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U3770M - CT2 I/Q Modulator and Clock Circuitry

General Description

U3770M is a quadrature modulator realized with MATRA MHS’ advanced 0.8 micron CMOS process.

The IC is especially designed for CT2 application in conjunction with TEMIC’s RF/IF signal processor U2760B and a CT2 baseband controller (i.e., AMD PhoXTM controller Am79C4xx).

Key Features

  • D Programmable 0.8/1.6 MHz quadrature modulated carrier generation D More than 26 dB LO and sideband suppression D 18.432 MHz CMOS level clock generation D Supply voltage range 2.7 to 3.3 V D Low power consumption, typical 12 mW D SO16 package or die form Block Diagram RRef in 12.8 MHz 2 DIV / 25 Phase comparator 512 kHz LF 11 VCO 14 CLK out 95 9881 Amp. 3 4 13 12 10 6 5 8 7 1, 15, 16 DNC DIV / 2 or DIV / 4 6.4 MHz 3.2 MHz 512 kHz DIV / 36 18.432 MHz VDD DGND AGND PROG TST Qin QBin Iin IBi.

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www.DataSheet4U.com U3770M CT2 I/Q Modulator and Clock Circuitry Description U3770M is a quadrature modulator realized with MATRA MHS’ advanced 0.8 micron CMOS process. The IC is especially designed for CT2 application in conjunction with TEMIC’s RF/IF signal processor U2760B and a CT2 baseband controller (i.e., AMD PhoXTM controller Am79C4xx). Together with TEMIC’s PLL IC U2783B and the GaAs front end U7001BG, a complete CT2 chip set is available. Electrostatic sensitive device. Observe precautions for handling. Features D Programmable 0.8/1.6 MHz quadrature modulated carrier generation D More than 26 dB LO and sideband suppression D 18.432 MHz CMOS level clock generation D Supply voltage range 2.7 to 3.