Part # LMX2312U datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LMX2310U LMX2311U LMX2312U LMX2313U PLLatinum™ Ultra Low Power Frequency Synthesizer for RF Personal Communications LMX23


Part Details:

for LMX2310U/LMX231 December 2003 RF Personal LMX2310U/LMX2311U/LMX2312U/LMX2313UPLLatinumTM Ultra Low Power Frequency Synthesizer forRF Personal Communications Communications LMX2310U 2.5 GHz LMX2311U 2.0 GHz 1U/LMX2312U/LMX2313U LMX2312U 1.2 GHz LMX2313U 600 MHz General Description Features The LMX2310/1/2/3U are high performance frequency syn- n RF operation up to 2.5 GHz thesizers. The LMX2310/1/2U use a selectable, dual modu- n 2.7V to 5.5V operation lus 32/33 and 16/17 prescaler. The LMX2313U uses a se- n Ultra Low Current Consumption lectable, dual modulus 16/17 and 8/9 prescaler. The device, n Low prescaler values when combined with a high quality reference oscillator and a LMX2310/1/2U 32/33 or 16/17 voltage controlled oscillator, generates very stable, low noise LMX2313U 16/17 or 8/9 local oscillator signals for up and down conversion in wire- n Excellent Phase Noise less communication devices. n Internal balanced, low leakage charge pump Serial data is transferred into LMX2310/1/2/3U via a three- n Selectable Charge Pump Current Levels wire interface (Data, Enable, Clock) that can be directly n Selectable Fastlock mode with Time-Out Counter interfaced with low voltage baseband processors. Supply ) voltage can range from 2.7V to 5.5V. LMX2310U features n Low Voltage MICROWIRE interface (1.72V to VCC very low current consumption, typically 2.3 mA at 3.0V. n Digital and Analog Lock Detect PLLatinum The LMX2310/1/2/3U are manufactured using National s n Small 20-pad Thin Chip Scale Package 0.5µ ABiC V silicon BiCMOS process and is available in20-pin CSP packages. Applicationsn Cellular DCS, PCS, WCDMA telephone systems n Wireless Local Area Networks (WLAN) n Global Positioning Systems (GPS) n Other wireless communications systems Ultra Functional Block Diagram Low


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LMX2312U.pdf Datasheet