Datasheet4U Logo Datasheet4U.com

RF137 Datasheet Transceiver For GSM Applications

Manufacturer: Conexant

Datasheet Details

Part number RF137
Manufacturer Conexant
File Size 144.26 KB
Description Transceiver For GSM Applications
Download RF137 Download (PDF)

General Description

s are found in Table 1.

The absolute maximum ratings of the device are provided in Table 2, and the operating conditions and electrical specifications are provided in Table 3.

Overview

www.DataSheet4U.com RF137 Transceiver For GSM Applications The RF137 Transceiver is a highly integrated device optimized for use in singleband or multi-band Global System for Mobile Communications (GSM) applications.

In the receive path, the device consists of selectable gain Intermediate Frequency (IF) amplifiers and an image reject downconverter with differential IF outputs.

In the transmit path, the device consists of an In-Phase and Quadrature (I/Q) modulator and a frequency translational loop designed to perform frequency upconversion with high output spectral purity.

Key Features

  • an on-chip, dual-loop UHF/VHF frequency synthesizer circuit. It includes two sets of reference dividers, phase/frequency detectors, charge pumps, prescalers, main dividers, and control circuits. The device package and pinout of the RF137 are shown in Figure 1. A block diagram is shown in Figure 2. The signal pin assignments and functional pin.