MAX2175:RF to Bits Automotive Radio Tuner

Analog/Digital Radio Tuner for Software-Defined Radio

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. Watch video ?

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
titleDownload file
MAX2175?Data SheetMAX2175.pdf
Part NumberVSUPPLY
ApplicationsSolutionsBand/ Freq.
(mm x mm)
MAX21753.1 to 3.5AM
Automotive76 to 90
87 to 108
168 to 240
1452 to 1492
7.0 x 7.0TQFN/48
Design kits & evaluation modules
Additional Resources
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX2175ETM/V+ActiveTQFN,;48 pin;TQFN;-40°C to +85°CSee data sheet
MAX2175ETM/V+TActiveTQFN,;48 pin;TQFN;-40°C to +85°CSee data sheet
MAX2175.pdf MAX2175
Remote Tuner Architecture Reduces Wiring Weight and Cost While Improving Noise Immunity MAX2175
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