Digital Radio Tuner For DAB And FM Signals Integrates Fast RSSI Function

Sunnyvale, CA -- Maxim Integrated Products introduces the MAX2172 digital radio tuner for FM and digital audio broadcast (DAB) signals, with a high sensitivity for the FM, VHF, and L-band frequency ranges. This device integrates all components necessary to implement a complete tuner solution, including LNAs, mixers, an IF filter, and a fully synthesized local oscillator. Additionally, the IC integrates a front-end tracking filter to eliminate interference between the UHF, VHF, and FM bands. An on-chip received-signal-strength indicator (RSSI) and temperature sensor ensure fast, accurate scan and seek functions. The RSSI provides ±2dB accuracy and outputs the measured level in digital form through the I2C bus. FM sensitivity is an outstanding -111dBm (typ), and FM adjacent-channel performance meets ETSI EN 55020. Drawing 61mA (typ) from a single 3V supply, the MAX2172 strikes an excellent balance between performance and power consumption, making it ideal for consumer and automotive applications.

The MAX2172 utilizes a standard 2.048MHz IF frequency that is compatible with most DAB digital demodulators. The device is packaged in a lead-free, 6mm x 6mm, 40-pin TQFN, and is fully specified over the -40 degrees Celsius to +85 degrees Celsius extended temperature range. Pricing starts at $4.00 (1000-up, FOB USA). An evaluation kit is available to speed designs.

Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company reported revenue in excess of $2 billion for fiscal 2008. Maxim was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6000 products serving the industrial, communications, consumer, and computing markets. For more information, go to www.maxim-ic.com.

SOURCE: Maxim Integrated Products