MAX2172
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MAX2172

Direct-Conversion to Low-IF Tuner for Digital Audio Broadcast

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High-Performance Digital Radio Tuner Incorporates Fast and Accurate RSSI Function

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Part Details
Part Models 7
1ku List Price Starting From $5.15
Features
  • +2.7V to +3.5V Supply Voltage Range
  • Low-IF Output Eliminates IF-Saw Filter
  • Integrated FM/VHF-III Bandpass Filter
  • Integrated Low-IF Bandpass Filter
  • Sigma-Delta Fractional-N Synthesizer
  • +45dBc ACPR (N±1)
  • 2.9dB Typical Noise Figure for VHF-III (Includes On-Chip Tracking Filter)
  • 3.1dB Typical Noise Figure for L-Band
  • VHF-III Sensitivity of -101dBm
  • L-Band Sensitivity of -101dBm
  • Baseband Overload Detector Controls RF AGC
  • Fast Channel Scan RSSI 5-Bit Output
  • FM (S+N)/N = 26dB at -111dBm
  • Small 6mm x 6mm Thin QFN Package
Additional Details
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The MAX2172 direct-conversion to low-IF tuner is designed for digital audio broadcast (DAB) and terrestrial digital multimedia broadcast (T-DMB) applications, covering an input frequency range of 168MHz to 240MHz (VHF-III), 1452MHz to 1492MHz (L-band), and also 87MHz to 108MHz (FM). The MAX2172 achieves a high level of component integration, allowing lowpower, tuner-on-board designs. The direct-conversion to low-IF architecture eliminates the need for an IF-SAW filter while providing a balanced 2.048MHz center frequency baseband output to the demodulator.

The MAX2172 provides a buffered reference clock at the crystal frequency.

A sigma-delta fractional-N synthesizer is incorporated to optimize both close-in and wideband phase noise performances for OFDM applications where sensitivity to both 1kHz phase noise and wideband phase noise related to strong adjacents can be a problem.

The MAX2172 is available in a 40-pin thin QFN package (6mm x 6mm) with an exposed pad. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

Applications

  • Fixed and Mobile Digital Audio Broadcast (DAB, DAB+) with FM
  • Terrestrial Digital Multimedia Broadcast (T-DMB) with FM
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.
Part Models 7
1ku List Price Starting From $5.15

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX2172ETL+
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MAX2172ETL+C8S
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MAX2172ETL+T
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MAX2172ETL/V+
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MAX2172ETL/V+CBM
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MAX2172ETL/V+T
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MAX2172ETL/V+TCBM
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Product Lifecycle

PCN

Aug 14, 2023

- 2275A

WAFER FAB

MAX2172ETL+

PRODUCTION

MAX2172ETL+C8S

PRODUCTION

MAX2172ETL+T

PRODUCTION

Aug 15, 2023

- 2275B

WAFER FAB

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Jun 18, 2021

- 2161

ASSEMBLY

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Feb 23, 2015

- 1290A_AMENDED

WAFER FAB

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Aug 5, 2014

- 1290A

WAFER FAB

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Aug 14, 2023

- 2275A

arrow down

WAFER FAB

MAX2172ETL+

PRODUCTION

MAX2172ETL+C8S

PRODUCTION

MAX2172ETL+T

PRODUCTION

Aug 15, 2023

- 2275B

arrow down

WAFER FAB

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Jun 18, 2021

- 2161

arrow down

ASSEMBLY

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Feb 23, 2015

- 1290A_AMENDED

arrow down

WAFER FAB

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Aug 5, 2014

- 1290A

arrow down

WAFER FAB

MAX2172ETL/V+

PRODUCTION

MAX2172ETL/V+CBM

PRODUCTION

MAX2172ETL/V+T

PRODUCTION

MAX2172ETL/V+TCBM

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX2172EVKIT

Evaluation Kit for the MAX2172

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MAX2172EVKIT

Evaluation Kit for the MAX2172

Evaluation Kit for the MAX2172

Features and Benefits

  • Easy Evaluation of the MAX2172
  • +2.7V to +3.5V Single-Supply Operation
  • 50Ω SMA Connector on the RF Ports
  • 50Ω BNC Connector for the Baseband Output
  • All Critical Peripheral Components Included
  • Parallel Port for I²C Interfacing
  • PC Control Software Available at www.maximintegrated.com
  • Lead(Pb)-Free and RoHS Compliant

Product Detail

The MAX2172 evaluation kit (EV kit) simplifies evaluation of the MAX2172 direct-conversion to low-IF tuner. It enables testing of the device's performance and requires no additional support circuitry. Standard 50Ω SMA and BNC connectors are included on the EV kit for the inputs and outputs to allow quick and easy evaluation on the test bench. The MAX2172 EV kit is fully assembled and tested at the factory.

This document provides 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 schematic, a component list of materials, and artwork for each layer of the PCB.

Applications

  • Fixed and Mobile Digital Audio Broadcast (DAB, DAB+) with FM
  • Terrestrial Digital Multimedia Broadcast (T-DMB) with FM

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