RF to Bits Automotive Radio Tuner
Analog/Digital Radio Receiver Supports Remote Tuners and Software-Defined Radios
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.
- 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
(mm x mm)
|MAX2175||3.1 to 3.5|
|7.0 x 7.0|
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|
- 925MHz to 2175MHz Frequency Range
- Monolithic VCO
- High Dynamic Range: -75dBm to 0dBm