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SA1638BE - Low voltage IF I/Q transceiver

Datasheet Summary

Description

The SA1638 is a combined Rx and Tx IF I/Q circuit.

The receive path contains an IF amplifier, a pair of quadrature down-mixers, and a pair of baseband filters and amplifiers.

A second pair of mixers in the transmit path transposes a quadrature baseband input up to the IF frequency.

Features

  • Fully compatible with SA1620 GSM RF front-end (see Figure 9).

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Datasheet Details

Part number SA1638BE
Manufacturer Philips
File Size 271.62 KB
Description Low voltage IF I/Q transceiver
Datasheet download datasheet SA1638BE Datasheet
Additional preview pages of the SA1638BE datasheet.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS SA1638 Low voltage IF I/Q transceiver Product specification IC17 Data Handbook 1997 Sept 03 Philips Semiconductors Philips Semiconductors Product specification Low voltage IF I/Q transceiver SA1638 DESCRIPTION The SA1638 is a combined Rx and Tx IF I/Q circuit. The receive path contains an IF amplifier, a pair of quadrature down-mixers, and a pair of baseband filters and amplifiers. A second pair of mixers in the transmit path transposes a quadrature baseband input up to the IF frequency. An external VCO signal is divided down internally and buffered to provide quadrature local oscillator signals for the mixers. A further divider chain, reference divider and phase detector are provided to avoid the need for an external IF synthesizer.
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