LMX2522 Series
PLLatinum dual frequency synthesizer system with integrated VCOs
Manufacturer: Texas Instruments
Catalog
PLLatinum dual frequency synthesizer system with integrated VCOs
Key Features
• Small SizeSmall 5.0 mm x 5.0 mm x 0.75 mm 28-Pin WQFN PackageRF/GPS Synthesizer SystemIntegrated RF VCOIntegrated GPS VCOIntegrated Loop FilterLow Spurious, Low Phase Noise Fractional-N RF PLL Based on 11-bit Delta Sigma Modulator10 kHz Frequency ResolutionIF Synthesizer SystemInteger-N IF PLLProgrammable Charge Pump Current LevelsProgrammable FrequenciesSupports Various Reference Oscillator Frequencies19.20/19.68 MHzFast Lock Time: 500 µsLow Current Consumption17 mA at 2.8 V2.7 V to 3.3 V OperationDigital Filtered Lock Detect OutputHardware and Software Power Down ControlAll trademarks are the property of their respective owners.Small SizeSmall 5.0 mm x 5.0 mm x 0.75 mm 28-Pin WQFN PackageRF/GPS Synthesizer SystemIntegrated RF VCOIntegrated GPS VCOIntegrated Loop FilterLow Spurious, Low Phase Noise Fractional-N RF PLL Based on 11-bit Delta Sigma Modulator10 kHz Frequency ResolutionIF Synthesizer SystemInteger-N IF PLLProgrammable Charge Pump Current LevelsProgrammable FrequenciesSupports Various Reference Oscillator Frequencies19.20/19.68 MHzFast Lock Time: 500 µsLow Current Consumption17 mA at 2.8 V2.7 V to 3.3 V OperationDigital Filtered Lock Detect OutputHardware and Software Power Down ControlAll trademarks are the property of their respective owners.
Description
AI
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 communications 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. In concert these blocks form a closed loop RF and GPS synthesizer system. LMX2522 supports the Korean PCS band with GPS and LMX2532 supports the Korean Cellular band with GPS.
LMX2522 and LMX2532 include an Integer-N IF PLL also. For more flexible loop filter designs, the IF PLL includes a 4-level programmable charge pump. Together with an external VCO and loop filter, LMX2522 and LMX2532 make a complete closed loop IF synthesizer system.
Serial data is transferred to the device via a three-wire MICROWIRE interface (DATA, LE, CLK).
Operating supply voltage ranges from 2.7 V to 3.3 V. LMX2502 and LMX2512 feature low current consumption: 17 mA at 2.8 V.
LMX2522 and LMX2532 are available in a 28-pin WQFN package.
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 communications 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. In concert these blocks form a closed loop RF and GPS synthesizer system. LMX2522 supports the Korean PCS band with GPS and LMX2532 supports the Korean Cellular band with GPS.
LMX2522 and LMX2532 include an Integer-N IF PLL also. For more flexible loop filter designs, the IF PLL includes a 4-level programmable charge pump. Together with an external VCO and loop filter, LMX2522 and LMX2532 make a complete closed loop IF synthesizer system.
Serial data is transferred to the device via a three-wire MICROWIRE interface (DATA, LE, CLK).
Operating supply voltage ranges from 2.7 V to 3.3 V. LMX2502 and LMX2512 feature low current consumption: 17 mA at 2.8 V.
LMX2522 and LMX2532 are available in a 28-pin WQFN package.
