Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Toshiba Electronics Europe | Subject: Donau-LC
Edited by the Electronicstalk Editorial
Team on 29 June 2007
Digital TV SoC integrates more functions
Next-generation digital TV SoC claims industry-leading levels of integration.
The next generation of digital TV SoC products from Toshiba begins with a new device that features industry-leading levels of integration to further simplify and speed the implementation of STB (set top box), DTR (digital TV recorder) and IDTV (integrated digital television) designs The Donau-LC 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
This article was originally published on Electronicstalk on 7 Nov 2007 at 8.00am (UK)
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One is capable of single tuner, single-stream SD (standard definition) operation, supporting in particular IDTV, while the other is available with a dual tuner and dual-stream option that supports PIP (picture in picture) output.
Output capabilities include analogue video (CVBS, S-Video and RGB/YUV) and 4:2:2 video.
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Toshiba's new IC brings together the company's TX49 L3 RISC core operating at up to 162MHz and 215MIPS, Media embedded Processor (MeP) modules that free the host processor from compute-intensive DVB and multimedia processing tasks, and a unified memory architecture.
An onboard 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.
The Donau-LC's video and graphics engine is operating with four graphics and video planes, is capable of progressive scan conversion, and offers pixel-accurate on screen display (OSD) at panel resolutions up to 1080p (Full-HD panels).
An onboard audio media module provides dual-stream audio decoding for bilingual decoding or an audio description channel.
The device can work with MPEG, AC-3 and AAC formats, while audio post processing functions include support for Dolby-Prologic, Virtual-Dolby, and SRS-True-Surround.
Volume, treble, bass, a five-band equaliser and balance functions are all provided on-chip, in addition to teletext decoding and time shift recording capabilities.
The Donau-LC has been developed to meet all of the common internal and external connectivity requirements of new and emerging STB, DTR and IDTV applications.
onboard interfaces and peripherals include a full-speed USB 2.0 host, an IDE connection for DTR hard disk support, two I2C bus connections, two serial ports, an SD card controller, 8 and 16bit external bus interfaces and 32 parallel ports.
Integrated timers include a real time clock with wake-up support, three 24bit up-counter timers and a capture and compare timer with support for IR decoding.
A keyboard controller and seven-segment display controller have also been built into the device.
Featuring a unified internal memory architecture, the Donau-LC can also support up to 64Mbyte of external NAND or NOR Flash and up to 64Mbyte of external SRAM.
A built-in DMA controller manages all memory operations through memory-to-memory, memory-to-I/O interface and I/O interface-to-memory modes.
In addition to STBs, DTRs and IDTVs, the new device is ideal for MHEG-5 and MHP (multimedia home platform) systems, FTA (free-to-air) and DVB (digital video broadcast) descrambler applications, and DVB common interface designs.
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