Toshiba's DVB-T iDTV module will allow OEMs to quickly and easily add iDTV
functionality to existing televisions. Providing single-stream MPEG decoding,
the platform combines Toshiba’s TC90403FG or TC90408FG multimedia SoC with a
tuner and COFDM demodulator (in case of TC90408FG COFDM is integrated), Flash
and DDR memory, common interface, and a variety of other functions required to
implement a complete DVB-T solution.
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Reference Board Features
- DVB-T Tuner
- DVB Common-Interface
- Video outputs
- CVBS, S-Video, RGB, YUV
- 4:2:2 YUV (ITU-601/656)
- 3 x 8 Bit Digital (TC90408FG) OSD outputs (TC90408FG)
- Analogue RGB/YUV OSD output
with 4 x Ym & Ys
- 4 x 4 Bit ARGB/AYUV output with Ys
- Audio outputs
- Analogue Audio
(TC90408FG with on-chip Audio DAC)- Dual analogue audio output
- SP-DIF output
- I2S-Bus input & output
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Reference Board Functions
- General functions:
- SIO, I2C-Bus interface, NOR Flash
- Optional RS-232C interface
- Optional USB-2.0 Host Interface
(Full-Speed)
- Debug and software development support
- E-JTAG and Ethernet controller interfaces
- Linux based system
- Board size approximately
150 x 100 mm
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iDTV Reference Platform
The iDTV reference module provides a wide variety of interfaces in order to ease
integration into existing and new TV sets.
TC90408FG Block Diagram
The Toshiba TC90408FG IC integrates a powerful graphics engine, audio decoding
and processing functionality, demodulation circuitry, and all necessary
interfaces and controllers into a single low-cost, 256-pin QFP package.
An on-board COFDM (coded orthogonal frequency division multiplexer) demodulator
(for DVB-T applications) is compliant with the latest specifications (including
support for ETSI 300 744 (DVB-T), NORDIG-II, NORDIG-Unified and DTG standards).
An integrated audio DAC further reduces external component count, board space
and cost.
System Software
At the operating system level the iDTV platform uses Linux. To ensure
true ‘out-of-box’ iDTV functionality, the reference platform uses a dedicated
‘middleware’ software stack which is available from the DTV specialists
Cabot Communications and
Ocean Blue Software.
For the reference module Toshiba has used
Cabot Communications
Eclipse DVB core, which has been designed and tested to address the requirements
of the European digital TV market based on European-wide DTV standards, country-
and region-specific profiles and local receiver specifications. This middleware
stack supports all European variations through language support, Electronic
Program Guides (EPGs), parental ratings, channel ordering, sub-titles and
software update mechanisms.
Further Information
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