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LMX2331A - Dual Frequency Synthesizer

Datasheet Summary

Description

The LMX233xA family of monolithic, integrated dual frequency synthesizers, including prescalers, is to be used as a local oscillator for RF and first IF of a dual conversion transceiver.

It is fabricated using National’s ABiC IV silicon BiCMOS process.

The LMX233xA contains dual modulus prescalers.

Features

  • 2.7V to 5.5V operation Low current consumption Selectable powerdown mode: ICC = 1 µA typical at 3V Dual modulus prescaler: LMX2330A (RF) 32/33 or 64/65 LMX2331A/32A (RF) 64/65 or 128/129 LMX2330A/31A/32A (IF) 8/9 or 16/17 n Selectable charge pump TRI-STATE ® mode n Selectable FastLock™ mode n Small outline, plastic, surface mount TSSOP 0.173" wide package n n n n General.

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Datasheet Details

Part number LMX2331A
Manufacturer National Semiconductor
File Size 392.20 KB
Description Dual Frequency Synthesizer
Datasheet download datasheet LMX2331A Datasheet
Additional preview pages of the LMX2331A datasheet.

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Full PDF Text Transcription

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LMX2330A/LMX2331A/LMX2332A PLLatinum Dual Frequency Synthesizer for RF Personal Communications May 1999 LMX2330A/LMX2331A/LMX2332A PLLatinum™ Dual Frequency Synthesizer for RF Personal Communications LMX2330A LMX2331A LMX2332A 2.5 GHz/510 MHz 2.0 GHz/510 MHz 1.2 GHz/510 MHz The LMX233xA are available in a TSSOP 20-pin surface mount plastic package. Features 2.7V to 5.5V operation Low current consumption Selectable powerdown mode: ICC = 1 µA typical at 3V Dual modulus prescaler: LMX2330A (RF) 32/33 or 64/65 LMX2331A/32A (RF) 64/65 or 128/129 LMX2330A/31A/32A (IF) 8/9 or 16/17 n Selectable charge pump TRI-STATE ® mode n Selectable FastLock™ mode n Small outline, plastic, surface mount TSSOP 0.
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