LMX2532LQX0967 ,PLLatinum Dual Frequency Synthesizer System with Integrated VCOsBlock Diagram20067201PLLatinum is a trademark of National Semiconductor Corporation. 2003 National ..
LMX2541SQ2060E NOPB ,Ultra-Low Noise PLLatinum Frequency Synthesizer with Integrated VCO 36-WQFN -40 to 85 SNOSB31J–JULY 2009–REVISED DECEMBER 20145 Device Comparison TableVCO LMX2541SQ2060E LMX2541SQ2380E ..
LMX2541SQ2380E/NOPB ,Ultra-Low Noise PLLatinum Frequency Synthesizer with Integrated VCO 36-WQFN -40 to 85Features 3 DescriptionThe LMX2541 device is an ultra low-noise frequency1• Multiple Frequency Optio ..
LMX2542LQX2121 ,PLLatinum Dual Frequency Synthesizer System with Integrated VCOsFeaturesn Small SizeLMX2542 is a highly integrated, high performance, low5.0 mm x 5.0 mm x 0.75 mm ..
LMX2604LQ ,Triple-band VCO for GSM900/DCS1800/PCS1900Pin DescriptionsPin Number Name I/O Description1 CE I Chip enable input pin. High=enable, Low=disab ..
LMX3161VBH ,Single Chip Radio TransceiverFeaturesand receive functions. The 1.1 GHz PLL block is shared be-n Single chip solution for DECT R ..
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LMX2522LQ1635-LMX2532LQ1065-LMX2532LQX0967
PLLatinum Dual Frequency Synthesizer System with Integrated VCOs
LMX2522/LMX2532
PLLatinum™ Frequency Synthesizer System with
Integrated VCOs
General DescriptionLMX2522 and LMX2532 are highly integrated, high perfor-
mance, 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 hand-
sets. Usinga proprietary digital phase locked loop tech-
nique, LMX2522 and LMX2532 generate very stable, low
noise local oscillator signalsforup and down conversionin
wireless communications devices.
LMX2522 and LMX2532 includea RF voltage controlled
oscillator (VCO),a GPS VCO,a loop filter, anda fractional-N PLL basedona delta sigma modulator.In concert these
blocks forma closed loopRF and GPS synthesizer system.
LMX2522 supports the Korean PCS band with GPS and
LMX2532 supportsthe Korean Cellular band with GPS.
LMX2522 and LMX2532 includean Integer-NIF PLL also.
For more flexible loop filter designs, theIF PLL includesa
4-level programmable charge pump. Together withan exter-
nal VCO and loop filter, LMX2522 and LMX2532 makea
complete closed loopIF synthesizer system.
Serial datais transferredto the device viaa three-wire
MICROWIRE interface (DATA, LE, CLK).
Operating supply voltage ranges from 2.7Vto 3.3V.
LMX2502 and LMX2512 feature low current consumption: mAat2.8V.
LMX2522 and LMX2532 are availableina 28-pin leadless
leadframe package (LLP).
Features Small Size
Small 5.0 mmx5.0 mmx 0.75 mm 28-Pin LLP Package RF/GPS Synthesizer System
IntegratedRF VCO
Integrated GPS VCO
Integrated Loop Filter
Low Spurious, Low Phase Noise Fractional-NRF PLL
Basedon 11-bit Delta Sigma Modulator kHz Frequency ResolutionIF Synthesizer System
Integer-NIF PLL
Programmable Charge Pump Current Levels
Programmable Frequencies Supports Various Reference Oscillator Frequencies
19.20/19.68 MHz Fast Lock Time: 500µs Low Current Consumption mAat2.8V 2.7Vto3.3V Operation Digital Filtered Lock Detect Output Hardware and Software Power Down Control
Applications Korean PCS CDMA Systems with GPS Korean Cellular CDMA Systems with GPS
Functional Block DiagramJune 2003
LMX2522/LMX2532
PLLatinum
Dual
Frequency
Synthesizer
System
with
Integrated
VCOs
