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U3550BM Datasheet Low-Power FM Transmitter / Synthesizer System 26 to 50 MHz

Manufacturer: TEMIC Semiconductors (now Microchip)

General Description

The U3550BM is a radio-frequency IC for analog cordless telephone applications in the 26/50-MHz band (CTO standard).

The IC performs full duplex communication.

The transmitting and receiving frequency depends on whether the IC is used in the handset or in the base station.

Overview

U3550BM www.DataSheet4U.com Low-Power FM Transmitter / Synthesizer System 26 to 50.

Key Features

  • D All PLLs and most of the oscillators are integrated D All functions and channel selection controllable by D D D D serial bus Receiver Mixer 1 with integrated image rejection Up to 25 channels selectable depending on CT0 standard Integrated oscillator circuit with external crystal (11.15 MHz) Programmable carrier-modulation frequency VBAT DELVB DELGND MIXO Mixer 1 + 45.
  • 45 sin LOGND.