Datasheet Texas Instruments LMX2502LQ1635/NOPB — 数据表

LMX2502, LMX2512
www.ti.com SNWS010C – MARCH 2003 – REVISED APRIL 2013 LMX2502/LMX2512 PLLatinum™ Frequency Synthesizer System with Integrated VCO
Check for Samples: LMX2502, LMX2512 FEATURES 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. 1 2 Small Size
– 5.0 mm X 5.0 mm X 0.75 mm 28-Pin WQFN
Package
RF Synthesizer System
– Integrated RF VCO
– Integrated Loop Filter
– Low Spurious, Low Phase Noise FractionalN 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 …