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LMX2332LTMXNSN/a468avai1.2 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2331LSLBXNSN/a45000avai2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2331LTMNSN/a23444avai2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2331LTMXNSN/a5000avai2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2332LSLBXNSCN/a3370avai1.2 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2332LTMNS ?N/a159avai1.2 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2332LTMNSN/a714avai1.2 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2330LSLDXNSN/a3300avai2.5 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2330LTMNSN/a1000avai2.5 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2330LTMXNSCN/a16696avai2.5 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications


LMX2331LSLBX ,2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal CommunicationsFeaturesn Ultra low current consumptionThe LMX233XL family of monolithic, integrated dual fre-quenc ..
LMX2331LTM ,2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communicationsfeaturesvery low current consumption; n Portable Wireless Communications(PCS/PCN, cordless)LMX2330L ..
LMX2331LTMX ,2.0 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal CommunicationsLMX2330L/LMX2331L/LMX2332L PLLatinum Low Power Dual Frequency Synthesizer for RFPersonal Communicat ..
LMX2331USLEX ,2.0 GHz/600 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communicationsfeaturesultralown Available in 20-Pin TSSOP, 24-Pin CSP, and 20-Pincurrent consumption:UTCSPLMX2330 ..
LMX2332ATM ,PLLatinum Dual Frequency Synthesizer for RF Personal CommunicationsBlock DiagramDS012331-1®TRI-STATE is a registered trademark of National Semiconductor Corporation.F ..
LMX2332L ,PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications 1.2 GHz/600 MHzFeaturesn Ultra low current consumptionThe LMX233XL family of monolithic, integrated dual fre-quenc ..
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LMX2330LSLDX-LMX2330LTM-LMX2330LTMX-LMX2331LSLBX-LMX2331LTM-LMX2331LTMX-LMX2332LSLBX-LMX2332LTM-LMX2332LTMX
2.5 GHz/510 MHz PLLatinum Low Power Dual Frequency Synthesizer for RF Personal Communications
LMX2330L/LMX2331L/LMX2332L
PLLatinum™ Low Power Dual Frequency Synthesizer for Personal Communications
LMX2330L 2.5 GHz/510 MHz
LMX2331L 2.0 GHz/510 MHz
LMX2332L 1.2 GHz/510 MHz
General Description

The LMX233XL familyof monolithic, integrated dual fre-
quency synthesizers, including prescalers,istobe usedasa
local oscillator for RF and firstIFofa dual conversion
transceiver.Itis fabricated using National’s 0.5μ ABiCV
silicon BiCMOS process.
The LMX233XL contains dual modulus prescalers.A 64/65a 128/129 prescaler (32/33or 64/65in the 2.5 GHz
LMX2330L) canbe selectedfortheRF synthesizer anda8/9a 16/17 prescaler canbe selectedfortheIF synthesizer.
LMX233XL, which employsa digital phase locked loop tech-
nique, combined witha high quality reference oscillator,
providesthe tuning voltagesfor voltage controlled oscillators generate very stable, low noise signalsforRF andIF local
oscillators. Serial datais transferred intothe LMX233XLvia three wire interface (Data, Enable, Clock). Supply voltage
can range from 2.7Vto 5.5V. The LMX233XL family features
very low current consumption;
LMX2330L —5.0 mAat 3V, LMX2331L—4.0 mAat 3V,
LMX2332L —3.0 mAat3V.
The LMX233XL are availableina TSSOP 20-pin, CSP
24-pin surface mount plastic package, and thin CSP 20-pin
surface mount plastic package.
Features
Ultra low current consumption 2.7Vto 5.5V operation Selectable synchronousor asynchronous powerdown
mode:
ICC=1μA typicalat3V Dual modulus prescaler:
LMX2330L (RF) 32/33or 64/65
LMX2331L/32L (RF) 64/65or 128/129
LMX2330L/31L/32L (IF) 8/9or 16/17 Selectable charge pump TRI-STATE® mode Selectable charge pump current levels Selectable Fastlock™ mode Upgrade and compatibleto LMX233XA family
Applications
Portable Wireless Communications
(PCS/PCN, cordless) Cordless and cellular telephone systems Wireless Local Area Networks (WLANs) CableTV tuners (CATV) Other wireless communication systems
Functional Block Diagram

October 2001
LMX2330L/LMX2331L/LMX2332L
PLLatinum
Low
Power
Dual
Frequency
Synthesizer
for
Personal
Communications
ic,good price


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