ATI Rage Theater 200 combines a video-decoder and a stereo sound-processor. The video decoder delivers a number of functions necessary for analog television signal decoding, like smoothing filters and so on. The flowchart below shows the operation scheme of Theater 200.
As the diagram shows the analog signal comes to the input multiplexer, is converted to the digital form and is divided into video and audio signals. After that the video signal is processed by the video decoder that has two integrated 12-bit ADCs, while the audio signal is processed by the audio demodulator. The decoded video signal goes to the “Video Scaler” unit that adjusts the video image size. The audio signal goes to the digital signal processor, which outputs it in the digital form to the S/PDIF port. The communication between Rage Theater 200 and the graphics chip is carried out across the I2S bus. The principal scheme of their intercommunication is shown in the following diagram.
We see that Rage Theater doesn’t direct the video onto the video output: it is the task of RADEON 9700 PRO. As we have said above, RADEON 9700 PRO has integrated digital-to-analog converters that can output the image onto the TV-set and other video appliances. But as RADEON 9700 PRO is a graphics chip, Theater 200 should process the sound. Fortunately, ATI paid proper attention to the sound part of Rage 200. This chip has an integrated 16-bit codec that produces sound with 32, 44.1, 48 or 96kHz sample rate. One of the features worth mentioning is automatic volume control. It means that the sound volume will remain the same as set by the user whatever the volume of each reproduced channel is.
Rage Theater 200 was developed not only for All-In-Wonder 9700 PRO multimedia cards, but also for TV-sets, displays with TV functions, video-conference equipment and so on. That’s why Rage Theater 200 supports all modern standards for analog signal transfer:
- PAL I, B, G, H, M, D, N;
- SECAM D, K, L, B, G;
- Dual FM;
There is only one thing to be mentioned: Rage Theater 200 supports power saving technologies, so all currently unused units of the chip are simply turned off.
The All-In-Wonder 9700 PRO multimedia card has 128MB of DDR SDRAM onboard. The memory is kept in eight BGA chips, soldered to both sides of the PCB.
The memory is made by Samsung, which also supplies chips for ordinary RADEON 9700 PRO. By default, the memory works at 620MHz frequency.
Just like RADEON 9700 PRO, All-In-Wonder 9700 PRO requires additional power for work. It is supplied via a 4-pin connector for 3.5” devices. The package of the multimedia card includes a splitter cable from 4-pin PCPlug connector so that every user could connect the card even if there are no free power connectors in the computer.
Overall, we have got only one gripe about the card: you cannot connect two displays to the card simultaneously.