PCI analog mono TV receiver

General description

This PCI-based analog mono TV receiver, built around the proven PCI video decoder SAA7130, supports PAL/NTSC/SECAM transport streams.

Blockdiagrams

Key features

• PCI-based architecture
• Analog TV reception (terrestrial and cable)
• Based on SAA7130 PCI video decoder
• Fully automatic detection of any worldwide analog TV video standard (PAL, NTSC, SECAM)
• Tw 9-bit ADCs at 27-MHz sample rate
• High-performance adaptive 2/4-line comb filter
• VBS/COFDM/QAM support via dedicated 'sidecar' bus
• Transport stream capture and DMA
• TV capture of raw VBI data, software slicing and decoding of Closed Caption, Teletext, Interface, and all other VBI standards
• ACPI 1.1 compliant and PCI power management support
• PCI specification 2.2 and PCI Design Guide 98/99/2001 compliant
• Integrated analog audio pass-through t
• loop-back cable support
• Application driver support

Background information

This design features a single-slot PCI card for analog video decoding and capture through the PCI bus to the graphic frame buffer or directly to system memory (e.g. for time-shift recording). A mono audio signal can be captured from the line-in (stereo/mono) connector. Once captured, the mono audio signal can be forwarded via an analog audio loop-back cable to the sound card.

The SAA7130 eliminates many components by integrated worldwide analog TV decoding, three-level Macrovision copy protection detection, MPEG-2 transport stream capture, and a PCI-bus mastering interface. It also offers direct VSB/COFDM/QAM channel decoder support via the reuse of the integrated video analog-to-digital converters (ADCs).

A code base for Windows Driver Model (WDM) reduces software maintenance and helps protect the designer’s software investment. A Device Driver Kit (DDK) for the SAA7130 has a plug-and-play driver as well as capture-driver installations for all commonly used 32-bit Windows platforms.