MAX2871

23.5MHz to 6000MHz Fractional/Integer-N Synthesizer/VCO

High-Performance, Wide-Frequency PLL with Integrated VCOs Simplifies Signal Chain and Improves Performance


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说明

The MAX2871 is an ultra-wideband phase-locked loop (PLL) with integrated voltage control oscillators (VCOs) capable of operating in both integer-N and fractional-N modes. When combined with an external reference oscillator and loop filter, the MAX2871 is a high-performance frequency synthesizer capable of synthesizing frequencies from 23.5MHz to 6.0GHz while maintaining superior phase noise and spurious performance.

The ultra-wide frequency range is achieved with the help of multiple integrated VCOs covering 3000MHz to 6000MHz, and output dividers ranging from 1 to 128. The device also provides dual differential output drivers, which can be independently programmed to deliver -1dBm to +8dBm output power. Both outputs can be muted by either software or hardware control.

The MAX2871 is controlled by a 4-wire serial interface and is compatible with 1.8V control logic. The device is available in a lead-free, RoHS-compliant, 5mm x 5mm, 32-pin TQFN package, and operates over an extended -40°C to +85°C temperature range.

The MAX2871 has an improved feature set and better overall phase noise and is fully pin- and software-compatible with the MAX2870.

What are the differences between MAX2870 and MAX2871? ›


MAX2871: Functional Diagram MAX2871: Functional Diagram 放大+

关键特性

  • Output Binary Buffers/Dividers Enable Extended Frequency Range
    • Divider Ratios of 1/2/4/8/16/32/64/128
    • 23.5MHz to 6000MHz
  • High-Performance Phase Frequency Detector (PFD) and Reference Frequency Reduces Spectral Noise
    • PFD Up to 140MHz
    • Reference Frequency Up to 210MHz
  • Low Normalized Inband Phase Noise of -230dBc/Hz Reduces System Noise Floor Contribution
  • Manual or Automatic VCO Selection Permits Fast Switching
  • Output Phase Reset and Adjustment Allow Synchronization of Multiple Synthesizers
  • On-Chip Temperature Sensor with 7-Bit ADC Ensures Optimum VCO Selection
  • Cycle Slip Reduction and Fast Lock Features Improve Accuracy and Acquisition Time
  • VCO Lock Maintained Over Entire Temperature Range Provides Glitch-Free Operation
  • Dual Differential Programmable Outputs Maximize Flexibility of Use

应用

  • 时钟发生器
  • 微波无线装置
  • 测试与测量
  • 无线基础设施
Part NumberSynthesizer ModeVSUPPLY
(V)
Oper. Freq.
(MHz)
Oper. Freq.
(MHz)
Prog. POUT
(dBm)
Differential RF OutputsInband Noise Floor
(dBc/Hz)
RMS Jitter
(ps RMS)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxtypSee Notes
MAX2871 
Fractional
Integer
3.0 to 3.623.56000-4 to +52-2290.2
THIN QFN/32
-40 to +85$6.11 @1k
查看所有PLLs/PLLs with Integrated VCO (3)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX2870EVKIT: 评估MAX2870
MAX2871EVKIT: 评估MAX2870

CAD Symbols and Footprints

  • MAX2871ETJ+
  • MAX2871ETJ+T
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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