LMX2512中文资料PLLatinum™ Frequency Synthesizer System with Integrated VCO数据手册TI规格书

描述 Description

General Description
LMX2502 and LMX2512 are highly integrated, high performance, low power frequency synthesizer systems optimized for Korean PCS and Korean Cellular CDMA (1xRTT, IS-95) mobile handsets. Using a proprietary digital phase locked loop technique, LMX2502 and LMX2512 generate very stable, low noise local oscillator signals for up and down conversion in wireless communications devices.

特性 Features

● Small Size
    5.0 mm X 5.0 mm X 0.75 mm 28-Pin LLP Package
● RF Synthesizer System
    Integrated RF VCO
    Integrated Loop Filter
    Low Spurious, Low Phase Noise Fractional-N RF PLL
    Based on 11-Bit Delta Sigma Modulator
    10 kHz Frequency Resolution
● IF Synthesizer System
    Integer-N IF PLL
    Programmable Charge Pump Current Levels
    Programmable Frequency
● Supports Various Reference Frequencies 19.20/19.68 MHz
● Fast Lock Time: 500 µs
● Low Current Consumption 17 mA at 2.8 V
● 2.7 V to 3.3 V Operation
● Digital Filtered Lock Detect Output
● Hardware and Software Power Down ControlApplications
● Korean PCS CDMA Systems
● Korean Cellular CDMA Systems

应用 Application

● Korean PCS CDMA Systems
● Korean Cellular CDMA Systems