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LMX2522 Datasheet Frequency Synthesizer System

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LMX2522/LMX2532 PLLatinum Dual Frequency Synthesizer System with Integrated VCOs June 2003 LMX2522/LMX2532 PLLatinum™ Frequency Synthesizer System with Integrated.

General Description

LMX2522 and LMX2532 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS (K-PCS) with GPS and Korean Cellular (K-Cellular) with GPS, CDMA (1xRTT, IS-95) mobile handsets.

Using a proprietary digital phase locked loop technique, LMX2522 and LMX2532 generate very stable, low noise local oscillator signals for up and down conversion in wireless munications devices.

LMX2522 and LMX2532 include a RF voltage controlled oscillator (VCO), a GPS VCO, a loop filter, and a fractional-N RF PLL based on a delta sigma modulator.

Key Features

  • n Small Size Small 5.0 mm x 5.0 mm x 0.75 mm 28-Pin LLP Package n RF/GPS Synthesizer System Integrated RF VCO Integrated GPS VCO Integrated Loop Filter Low Spurious, Low Phase Noise Fractional-N RF PLL Based on 11-bit Delta Sigma Modulator 10 kHz Frequency Resolution n IF Synthesizer System Integer-N IF PLL Programmable Charge Pump Current Levels Programmable Frequencies n Supports Various Reference Oscillator Frequencies 19.20/19.68 MHz n Fast Lock Time: 500 µs n Low Current Consumption 17 mA a.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
Texas Instruments Logo LMX2522 Frequency Synthesizer System Texas Instruments

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LMX2522 Distributor