LMX2434 用于射频个人通信的 5.0 GHz/2.5 GHz PLLatinum 低功耗双路频率合成器

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 LMX2434 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

	LMX2434
Output Frequency (Min) (Mhz)	1000
Output Frequency (Max) (Mhz)	5000
VCC (V)	2.25 to 2.75

LMX2434 特性

Low Current Consumption
2.25V to 2.75V Operation
Selectable Synchronous or Asynchronous Powerdown Mode
Selectable Dual Modulus Prescaler: LMX2430 RF: 8/9 or 16/17 LMX2434 RF: 8/9 or 16/17 LMX2434 RF: 16/17 or 32/33 LMX243x IF: 8/9 or 16/17
Programmable Charge Pump Current Levels RF and IF: 1 or 4 mA
Fastlock™ Technology with Integrated Timeout Counters
Digital Filtered Lock Detect Output
Analog Lock Detect Output (supports both Push-Pull and Open Drain configurations)
1.8V MICROWIRE Logic Interface
Available in 20-Pin TSSOP and 20-Pin UTCSP

LMX2434 器件用途

Mobile Handsets (GSM, GPRS, W-CDMA, CDMA, PCS, AMPS, PDC, DCS)
Cordless Handsets (DECT, DCT)
Wireless Data
Cable TV Tuners

LMX2434 工具与软件

培训内容	型号	软件/工具类型
LMX2434 Evaluation Module	LMX2434EVM	开发电路板/EVM