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LMX2335 Datasheet Pllatinum Dual Frequency Synthesizer

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LMX2335/LMX2336/LMX2337 PLLatinum Dual Frequency Synthesizer for RF Personal munications September 1996 LMX2335/LMX2336/LMX2337 PLLatinum™ Dual Frequency Synthesizer for RF Personal munications LMX2335 LMX2336 LMX2337 1.1 GHz/1.1 GHz 2.0 GHz/1.1 GHz 550 MHz/550 MHz both a JEDEC SO and TSSOP 16-pin surface mount plastic package. The LMX2336 is available in a TSSOP 20-pin surface mount plastic package.

General Description

The LMX2335, LMX2336 and LMX2337 are monolithic, integrated dual frequency synthesizers, including two high frequency prescalers, and are designed for applications requiring two RF phase-lock loops.

They are fabricated using National’s ABiC IV silicon BiCMOS process.

The LMX2335/36/37 contains two dual modulus prescalers.

Key Features

  • n 2.7V to 5.5V operation n Low current consumption n Selectable powerdown mode: ICC = 1 µA (typ) n Dual modulus prescaler: 64/65 or 128/129 n Selectable charge pump TRI-STATE ® mode n Selectable charge pump current levels n Selectable FastLock™ mode General.

LMX2335 Distributor