Part # LMX2335L datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LMX2335L LMX2336L LMX2335L 1.1 GHz 1.1 GHz LMX2336L 2.0 GHz 1.1 GHz PLLatinum™ Low Power Dual Frequency Synthesizer for


Part Details:

Communications LMX2335L/LMX2336L PRELIMINARY February 2001 LMX2335L/LMX2336LLMX2335L 1.1 GHz/1.1 GHz LMX2336L 2.0 GHz/1.1 GHz PLLatinumTM Low Power Dual Frequency Synthesizer forRF Personal Communications PLLatinum General Description Features The LMX2335L and LMX2336L are monolithic, integrated n Ultra low current consumption dual frequency synthesizers, including two high frequency n 2.7V to 5.5V operation prescalers, and are designed for applications requiring two n Selectable synchronous and asynchronous powerdown RF phase-lock loops. They are fabricated using National s mode: 0.5µ ABiC V silicon BiCMOS process. I = 1 µA (typ) CC Low The LMX2335L/36L contains two dual modulus prescalers. A n Dual modulus prescaler: 64/65 or 128/129 64/65 or a 128/129 prescaler can be selected for each RF n Selectable charge pump TRI-STATE® mode synthesizer. A second reference divider chain is included in n Selectable charge pump current levels the IC for improved system noise. The LMX2335L/36L com- Power n Selectable FastlockTM mode bined with a high quality reference oscillator, two loop filters, n Upgrade and compatible to LMX2335/36 and two external voltage controlled oscillators generatesvery stable low noise RF local oscillator signals. n Small-outline, plastic, surface mount TSSOP package n LMX2336 available in CSP package Serial data is transferred into the LMX2335L/36L via a three Dual wire interface (Data, Enable, Clock). Supply voltage canrange from 2.7V to 5.5V. The LMX2335L/36L feature very Applications low current consumption; LMX2335L 4.0 mA at 5V, n Cellular telephone systems (AMPS, ETACS, RCR-27) LMX2336L 5.5 mA at 5V. The LMX2335L is available in SO, n Cordless telephone systems Frequency TSSOP and CSP 16-pin surface mount plastic packages. (DECT, ISM , PHS, CT-1+) The LMX2336L is available in a TSSOP 20-pin and CSP n Personal Communication Systems 24-pin surface mount plastic package. (DCS-1800, PCN-1900) n Dual Mode PCS phones


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LMX2335L.pdf Datasheet