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BT849A Datasheet Single-chip Video Capture

Manufacturer: Booktree

Overview: Advance Information This document contains information on a product under development. The parametric information contains target parameters that are subject to change. Bt848/848A/849A Single-Chip Video Capture for PCI Bt848 is a plete, low cost single-chip solution for analog NTSC/PAL/SECAM video capture on the PCI bus. As a bus master, Bt848 does not require any local memory buffers to store video pixel data which significantly minimizes the hardware cost for this architecture. Bt848 takes advantage of the PCI-based system’s high bandwidth and inherent multimedia capability. It is designed to be interoperable with any other PCI multimedia device at the ponent or board level, thus enabling video capture and overlay capability to be added to PCI systems in a modular fashion at low cost. The Bt848 solution is independent of the PCI system bus topology and may be used in a variety of system bus organizations: directly on a motherboard planar bus, on a card for a planar or secondary bus. The Bt848A/849A are fully backward patible enhancements to the Bt848. The Bt848A and 849A both include all the functionality of the Bt848, while adding support for peaking, single crystal operation, and digital camera support.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number BT849A
Manufacturer Booktree
File Size 1.12 MB
Description Single-Chip Video Capture
Datasheet BT849A BT848 Datasheet (PDF)

Key Features

  • Fully PCI Rev. 2.1 compliant.
  • Auxiliary GPIO data port and video data port.
  • Supports image resolutions up to 768x576 (full PAL resolution).
  • Supports complex clipping of video source.
  • Zero wait state PCI burst writes.
  • Field/frame masking support to throttle bandwidth to target.
  • Multiple YCrCb and RGB pixel formats supported on output.
  • Supports NTSC/SECAM/PAL analog input.
  • Image size scalable down to icon using verti.

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