MAX19791

PRODUCTION

50MHz to 4000MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled DAC

High-Performance RF VVA Features 46dB of Linearly Controlled Dynamic Range and Excellent Attenuation Flatness

Data Sheet (Rev. 2) Product Selection Table
Part Models
2
1ku List Price
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Part Details

  • Wideband Coverage
    • 50MHz to 4000MHz RF Frequency Range
  • High Linearity
    • Greater Than +37.4dBm IIP3 Over the Full Attenuation Range
    • +22.6dBm Input P1dB
  • Integrates Two Analog Attenuators in One Monolithic Device
  • Two Convenient Control Options
    • Single Analog Voltage
    • On-Chip SPI-Controlled 10-Bit DAC
  • Step-Up/Down Pulse Command Inputs
  • Flexible Attenuation Control Ranges
    • 23dB (Per Attenuator)
    • 46dB (Both Attenuators Cascaded)
  • Linear dB/V Analog Control Response Curve Simplifies Automatic Leveling Control and Gain-Trim Algorithms
  • Excellent Attenuation Flatness Over Wide Frequency Ranges and Attenuation Settings
  • On-Chip Comparator (for Successive Approximation Measurement of Attenuator Control Voltage)
  • Low 13mA Supply Current
  • Single 5V or 3.3V Supply Voltage
  • Pin-Compatible with the MAX19792 and MAX19793
  • Pin-Compatible with the MAX19794 with Addition of Two Shunt Capacitors
  • PCB-Compatible with the MAX19790
  • Lead(Pb)-Free Package
MAX19791
50MHz to 4000MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled DAC
MAX19791: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Analog Control Variable Gain Amplifiers (VGAs) 3
MAX19790
PRODUCTION 250MHz to 4000MHz Dual, Analog Voltage Variable Attenuator
MAX19793
PRODUCTION 1500MHz to 6000MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled DAC
MAX19794
PRODUCTION 10MHz to 500MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled DAC
Product 1
MAX19792
LAST TIME BUY 500MHz to 4000MHz Dual Analog Voltage Variable Attenuator with On-Chip 10-Bit SPI-Controlled DAC
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Tools & Simulations

Software Development 1

Evaluation Kits

MAX19791EVKIT

Evaluation Kit for the MAX19791

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Features and Benefits

  • Easy Evaluation of the MAX19791 IC.
  • On-Board DAC which Outputs 4V ±5% to Control the Attenuation.
  • On-Board Power Supply +3.3V and +5V from MAX32625PICO.
  • The Operating Frequency Range Extends from 50MHz to 4000MHz.
  • 50Ω SMA Connectors on the RF Ports.
  • All Critical Peripheral Components Included.
  • A Micro USB Port for Interfacing with the PC.
  • PC Control Software (available at www.maximintegrated.com/evkitsoftware).

Product Details

The MAX19791 evaluation kit (EV kit) simplifies the evaluation of the MAX19791. The MAX19791 dual general- purpose analog voltage variable attenuator (VVA) is designed to interface with 50Ω systems operating in the 50MHz to 4000MHz frequency range.

The MAX19791 is a monolithic VVA IC designed for Broadband System Applications, Including Wireless Infrastructure Digital and Spread-Spectrum Communication Systems WCDMA/LTE, TD-SCDMA/ TD-LTE, WiMAX®, cdma2000M, GSM/EDGE, and MMDS Base Stations VSAT/Satellite Modems. The MAX19791 evaluation kit hosts a microcontroller (MCU) that uses a serial peripheral interface to configure internal registers and modes. The graphical user interface (GUI) software running on a computer makes it simple to program registers and control the device operation. The evaluation kit is fully assembled and tested at the factory.

This document provides a component list, a list of equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the EV kit circuit, the circuit schematics, and artwork for each layer of the printed circuit board (PCB).

Applications

  • Automatic Level Control (ALC)
  • Broadband System Applications, Including Wireless Infrastructure Digital and Spread-Spectrum Communication Systems
  • General Test Equipment
  • Lineup Gain Trim
  • Microwave Point-to-Point Systems
  • Receiver Gain Control
  • Temperature-Compensation Circuits
  • Transmitter Gain Control
  • VSAT/Satellite Modems
  • WCDMA/LTE, TD-SCDMA/TD-LTE, WiMAX®, cdma2000®, GSM/EDGE, and MMDS Base Stations
MAX19791EVKIT
Evaluation Kit for the MAX19791

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