Product Details
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? ›
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
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) | $6.42 @1k |
Technical Docs
Click any title below to view the detail page where available.

Description
The MAX2870/MAX2871 evaluation kits (EV kits) simplify the testing and evaluation of the MAX2870 and MAX2871 ultra-wideband phase-locked loop (PLL) with integrated voltage-control oscillators (VCOs). Each EV kit is fully assembled and tested at the factory. Standard 50Ω SMA connectors are included on the EV kits for the inputs and outputs to enable quick and easy evaluation on the test bench.
This document provides a Quick Start guide, a description of the EV kit circuit, a Troubleshooting Guide, the circuit schematic, a list of components for the EV kit, and diagrams for each layer of the PCB.
Note: This EV kit data sheet supports the MAX2870 (Rev B) and MAX2871 EV kits. Customers using MAX2870 (Rev A) EV kit can access the schematic, PCB layout, and user guide under the Help menu of the EV kit software.
View DetailsFeatures
- Easy Evaluation of the MAX2870 and MAX2871
- 50Ω SMA Connectors
- All Critical Peripheral Components Included
- PC Control Software
- Proven PCB Layout
- Fully Assembled and Tested
Description
The MAX2870/MAX2871 evaluation kits (EV kits) simplify the testing and evaluation of the MAX2870 and MAX2871 ultra-wideband phase-locked loop (PLL) with integrated voltage-control oscillators (VCOs). Each EV kit is fully assembled and tested at the factory. Standard 50Ω SMA connectors are included on the EV kits for the inputs and outputs to enable quick and easy evaluation on the test bench.
This document provides a Quick Start guide, a description of the EV kit circuit, a Troubleshooting Guide, the circuit schematic, a list of components for the EV kit, and diagrams for each layer of the PCB.
Note: This EV kit data sheet supports the MAX2870 (Rev B) and MAX2871 EV kits. Customers using MAX2870 (Rev A) EV kit can access the schematic, PCB layout, and user guide under the Help menu of the EV kit software.
View DetailsFeatures
- Easy Evaluation of the MAX2870 and MAX2871
- 50Ω SMA Connectors
- All Critical Peripheral Components Included
- PC Control Software
- Proven PCB Layout
- Fully Assembled and Tested
![]() | SIMULATION MODELS MAX2871 IBIS Model | Download |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Parameters
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) | $6.42 @1k |
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 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? ›
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal