U2739M-BFT

Overview

The U2739M-B is a single-chip integrated circuit designed for the demodulation and decoding of Digital Audio Broadcasting (DAB) signals in accordance with ETS 300 401. It integrates an OFDM channel decoder, MPEG-1/2 Layer II audio source decoder, and dual packet data decoders on an embedded OAK DSP core. The device operates on a 3V to 3.6V supply voltage and supports I2C, I2S, and SPDIF interfaces. It is housed in a 100-TQFP surface-mount package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• Integrated DAB channel decoder supporting OFDM demodulation, time/frequency synchronization, and dynamic multiplex reconfiguration.
• Audio source decoder compliant with ISO/IEC 11172/3 (MPEG-1 Layer II) and ISO/IEC 13818-3 (MPEG-2 Layer II).
• Dual independent packet mode data decoders with configurable output via HSSO or RS232.
• Flexible interface suite including I2C/L3 microcontroller control, I2S/SPDIF audio output, RDI, SFCO, and ADC.

Applications

• Consumer audio receivers
• Digital radio tuners
• Broadcasting equipment

Procurement Notes

Verify component authenticity and physical condition upon receipt. Confirm that the delivered part matches the specified 100-TQFP package and electrical parameters. Ensure proper electrostatic discharge handling procedures are followed during storage and installation.

Selection Notes

Select this component for designs requiring a complete hardware solution for DAB signal processing. Ensure the system architecture accommodates the required 3.3V power supply and provides external SRAM for the time de-interleaver memory as indicated in the functional block diagram.

Part Context

This device belongs to the category of multimedia ICs specifically classified under audio special purpose components. It serves as a dedicated solution for digital broadcasting applications, combining RF front-end control capabilities with baseband decoding functions.

Replacement Considerations

No publicly confirmed substitute part numbers are available in the provided documentation. Design changes should be evaluated carefully if sourcing alternatives due to specific interface and pinout dependencies.

FAQ

What standards does the U2739M-B support?

It supports DAB signals according to ETS 300 401 and audio decoding standards ISO/IEC 11172/3 and ISO/IEC 13818-3.

How is software customization handled?

The device features a USE boot mode that allows replacing or extending software modules, such as synchronization algorithms, by downloading user-defined code to the OAK DSP core.

What types of data outputs are available?

Data can be output via High Speed Serial Output (HSSO), V24/RS232, or the RDI interface.