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LMX2434 Datasheet

Part Number LMX2434
Manufacturers National Semiconductor
Logo National Semiconductor
Description Dual High Frequency Synthesizer
Datasheet LMX2434 DatasheetLMX2434 Datasheet (PDF)

LMX2430/LMX2433/LMX2434 PLLatinum Dual High Frequency Synthesizer for RF Personal Communications May 2003 LMX2430/LMX2433/LMX2434 PLLatinum™ Dual High Frequency Synthesizer for RF Personal Communications LMX2430 3.0 GHz/0.8 GHz LMX2433 3.6 GHz/1.7 GHz LMX2434 5.0 GHz/2.5 GHz General Description The LMX243x devices are high performance frequency synthesizers with integrated dual modulus prescalers. The LMX243x devices are designed for use as RF and IF local oscillators for dual conversion radio.

  LMX2434   LMX2434






Part Number LMX2434
Manufacturers Texas Instruments
Logo Texas Instruments
Description Dual High-Frequency Synthesizer
Datasheet LMX2434 DatasheetLMX2434 Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMX2430, LMX2433, LMX2434 SNAS187D – FEBRUARY 2003 – REVISED JANUARY 2016 LMX243x PLLatinum™ Dual High-Frequency Synthesizer for RF Personal Communications 1 Features •1 Low Current Consumption – LMX2430 (RF/IF): 2.8 mA/ 1.4 mA – LMX2433 (RF/IF): 3.2 mA/ 2 mA – LMX2434 (RF/IF): 4.6 mA/ 2.4 mA • 2.25-V to 2.75-V Operation • Synchronous/Asynchronous Power Down • Multiple PLL Options: – LMX2430 (RF/IF): 3 GHz.

  LMX2434   LMX2434







Dual High Frequency Synthesizer

LMX2430/LMX2433/LMX2434 PLLatinum Dual High Frequency Synthesizer for RF Personal Communications May 2003 LMX2430/LMX2433/LMX2434 PLLatinum™ Dual High Frequency Synthesizer for RF Personal Communications LMX2430 3.0 GHz/0.8 GHz LMX2433 3.6 GHz/1.7 GHz LMX2434 5.0 GHz/2.5 GHz General Description The LMX243x devices are high performance frequency synthesizers with integrated dual modulus prescalers. The LMX243x devices are designed for use as RF and IF local oscillators for dual conversion radio transceivers. A 32/33 or a 16/17 prescale ratio can be selected for the 5.0 GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler. Using a proprietary digital phase locked loop technique, the LMX243x devices generate very stable, low noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF synthesizers have dedicated Fastlock circuitry with integrated timeout counters. Furthermore, only a single word write is required to power up and tune the synthesizers to a new frequency. Serial data is transferred to the devices via a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8V devices. Supply voltages from 2.25V to 2.75V are supported . The LMX243x family features low current consumption: LMX2430 (3.0 GHz/ 0.8.


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