ALPS develops and commences mass production of “TDGW9 Series” DAB/DAB+/DMB–A tuner for automobiles

Industry’s Smallest, Supporting Digital Radio Standards Popular in Europe and Elsewhere

ALPS ELECTRIC EUROPE GmbH has developed the TDGW9 Series DAB*1/DAB+*2/DMB–A*3 tuner for automobiles. Mass production is already underway.

Radio makes going for a drive so much more enjoyable. Like television, use of digital technology for radio is advancing, allowing digital audio transmission. Digital radio is spreading around the world. Digital radio specifications differ from country to country. For example, ISDB–Tsb is used in Japan, HD Radio in the United States, and DAB in Europe. Interest in digital radio is particularly high in Europe where the use of multiple standards to enhance services and legislation on the installation of digital radio receivers is progressing.

ALPS Electric, responding quickly to trends within the European market, has developed and commenced mass production of the TDGW9 Series DAB/DAB+/DMB–A tuner for automobiles. Despite being the industry’s smallest at 45.0 × 30.0 × 9.0mm, the tuner supports three broadcasting standards—DAB, DAB+, and DMB–A. The product is also an “All-in-one” type module, incorporating firmware to match individual customer requirements. This helps equipment manufacturers to shorten the time it takes to develop software.

For the TDGW9 Series, RF circuit technology and design know-how acquired by ALPS over the years were used to optimize circuit design. Besides achieving a compact size, ALPS managed to reduce interference between circuits and realize both low noise and high sensitivity. In addition, tuning support provided for the installed firmware enables compatibility with a wide range of receiving environments.

ALPS is continually working to strengthen its design and development capabilities. In July 2011, ALPS opened a new EMC Evaluation Center at its Furukawa Plant (Osaki City, Miyagi Prefecture), establishing systems for evaluating RF characteristics under actual usage conditions.

*1 DAB (Digital Audio Broadcasting): A digital radio specification developed for the EU by EUREKA (a common European framework for advanced technology). It is mainly used in Europe.

*2 DAB+: A specification improving on DAB by expanding types of data received, including text data, and enhancing sound quality.

*3 DMB–A (Digital Multimedia Broadcasting – Audio): A digital broadcasting specification for mobile devices launched in Korea in 2005.


Industry’s smallest, supporting digital radio standards popular in Europe and elsewhere

  1. The industry’s smallest size at 45.0 × 30.0 × 9.0mm.
  2. Built-in DAB/DAB+/DMB–A decoder.
  3. Original firmware for OEM.
  4. Additional decoders can be added to support multiple profiles.


Principal Applications

Car navigation and audio systems, and other automotive equipment.


Product name

TDGW9 Series

Dimensions (W × D × H)

45.0mm x 30.0mm x 9.0mm

Supply voltage


Audio output


Data output


Receiving frequency

163 to 1240MHz (BAND III)

1452 to 1492MHz (L–BAND)



Mount type

Vertical / Horizontal