RF to Bits Automotive Radio Tuner

Analog/Digital Radio Receiver Supports Remote Tuners and Software-Defined Radios

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The MAX2175 IC is an advanced analog/digital RF to Bits® radio receiver with front-end designed for remote tuner and software-defined radio solutions in automotive reception environments. This highly integrated tuner uses direct-conversion for digital audio broadcast (DAB) and digital multimedia broadcast (DMB) applications, covering both VHF Band-III and L-Band. Reception of FM, DRM+, FM-HD, and Weather-Band is supported using a low-IF and digital conversion to baseband. AM (long, medium and short wave) and DRM reception is supported using direct sampling and digital conversion to baseband.

The device provides a buffered differential output of the reference frequency to support multi-tuner systems. The design integrates all key blocks, enabling low-power, tuner-on-board designs with advanced baseband solutions. The tuner includes digital filtering to minimize the MIPS required in the baseband processor to demodulate the desired channel. The resulting I-channel and Q-channel data words are transferred to the baseband through an industry standard I2S digital interface.

The MAX2175 IC is available in a 48-pin TQFN package (7mm x 7mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

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Design Solution: Remote Tuner Architecture Reduces Wiring Weight and Cost While Improving Noise Immunity ›

Learn more about our remote tuner technology ›

MAX2175: ACE Award Winner MAX2175: ACE Award Winner Enlarge+

Key Features

  • RF to Bits Architecture with I2S Output
  • Single Supply Voltage of +3.3V
  • Integrated VHF Band-III Loop-Through
  • All-Band Reception of AM Medium-Wave Band
  • All-Digital Gain Control
  • Flexible Data Structure
  • Programmable Word Length
  • Dual or Single Data-Line Modes
  • Small Package (7mm x 7mm, 48-Pin TQFN)


  • Automotive Infotainment Systems
  • Remote Radios
  • Smart Antennas

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX2175J1EVKIT: MAX2175 RF to Bits Automotive Radio Tuner Evaluation Kit
MAX2175R1EVKIT: MAX2175 RF to Bits Automotive Radio Tuner Evaluation Kit
Request Reliability Report for: MAX2175 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Related Resources

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Type ID Title
Evaluation Board9238MAX2175J1EVKIT MAX2175 RF to Bits Automotive Radio Tuner Evaluation Kit
Evaluation Board9238MAX2175R1EVKIT MAX2175 RF to Bits Automotive Radio Tuner Evaluation Kit