Top

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

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

Product Details

Key Features

Applications/Uses

Parametric specs for PLLs/PLLs with Integrated VCO
Synthesizer Mode Fractional
Integer
VSUPPLY (V) 3.0 to 3.6
Oper. Freq. (MHz) (min) 23.5
Oper. Freq. (MHz) (max) 6000
Prog. POUT (dBm) -4 to +5
Differential RF Outputs 2
Inband Noise Floor (dBc/Hz) -229
RMS Jitter (ps RMS) (typ) 0.2
Package/Pins TQFN/32
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
6.81
View More

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for PLLs/PLLs with Integrated VCO
Synthesizer Mode Fractional
Integer
VSUPPLY (V) 3.0 to 3.6
Oper. Freq. (MHz) (min) 23.5
Oper. Freq. (MHz) (max) 6000
Prog. POUT (dBm) -4 to +5
Differential RF Outputs 2
Inband Noise Floor (dBc/Hz) -229
RMS Jitter (ps RMS) (typ) 0.2
Package/Pins TQFN/32
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
6.81

Key Features

  • 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

Applications/Uses

  • Clock Generation
  • Microwave Radios
  • Test and Measurement
  • Wireless Infrastructure

Description

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? ›


Simplified Block Diagram

MAX2871: Functional Diagram MAX2871: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .