LMX2331LSLB ,PLLatinum Low Power Dual Frequency Synthesizer for RF Personal CommunicationsPin DescriptionsPin No. Pin No.LMX233XLSLB LMX233XLTM PinI/O Description24-pinCSP 20-pin TSSOP Name ..
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 ..
LR G6SP , Advanced Power TOPLED Enhanced ThinFilm LED Lead (Pb) Free Product - RoHS Compliant
LR2010 , Low Value Flat Chip Resistor
LR324D , Internally Frequency Compensated Large Voltage Gain
LR38266 , Digital Signal Processor for Color CCD Cameras
LR38269 , Digital Signal Processor for Color CCD Cameras
LR38574 , Timing Generator IC for 1 090 k/1 310 k-pixel CCDs
LMX2331-LMX2331LSLB-LMX2332LSLB
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 DescriptionThe LMX233XL familyof monolithic, integrated dualfre-
quency synthesizers, includingprescalers,istobe usedasa
local oscillatorforRFandfirstIFofa dual conversion trans-
ceiver.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 64/65inthe2.5 GHz
LMX2330L)canbe selectedfor theRFsynthesizerand a8/9a 16/17 prescalercanbe selectedfortheIF synthesizer.
LMX233XL, which employsa digital phase lockedloop tech-
nique, combinedwitha high quality reference oscillator,pro-
videsthe tuning voltagesfor voltage controlled oscillatorsto
generate very stable,low noise signalsforRFandIF local
oscillators. Serial datais transferredintothe LMX233XLvia three wire interface (Data, Enable, Clock). Supply voltage
can range from 2.7Vto 5.5V. TheLMX233XL family features
verylow current consumption;
LMX2330L—5.0 mAat3V, LMX2331L—4.0 mAat3V,
LMX2332L—3.0mAat3V.
The LMX233XLare availableina TSSOP 20-pinand CSP
24-pin surface mount plastic package.
Features Ultralow 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 Upgradeand compatibleto LMX233XA family
Applications Portable Wireless Communications
(PCS/PCN, cordless) Cordlessand cellular telephone systems Wireless Local Area Networks (WLANs) CableTV tuners (CATV) Other wireless communication systems
Functional Block DiagramTRI-STATE®isa registeredtrademark ofNationalSemiconductorCorporation.
Fastlock™, MICROWIRE™and PLLatinum™are trademarks ofNationalSemiconductor Corporation.
DS012806-1
June 1999
LMX2330L/LMX2331L/LMX2332L
PLLatinum
Low
Power
Dual
Frequency
Synthesizer
for
Personal
Communications 1999 National Semiconductor Corporation DS012806
