1

DATASHEET

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

Multichannel H.264 Audio/Video Codec

TW2819

The TW2819 is a high performance and cost effective

multi-channel H.264 CODEC solution designed for the security

surveillance market. It is capable of receiving and encoding

maximum 16 channels standard definition (SD) or 960H

(WD1) video. It can also support up to 8-channel high definition

(HD) 720p or 4-channel 1080p encode. It supports

D1/960H/720p/1080p decode also up to 4 channels. Each

video channel can be independently controlled in terms of

encode/decode mode, frame rate, bit rate.

Applications

• HD-SDI Digital Video Recorder

• H.264 Network Video Encoder

• HD compression PC card

Features

Video Features

• Real time full-duplex video CODEC compliant to H.264 main

profile standard

• Four BT.656 byte-interleaved video input port up to 144MHz

• Four BT.656/1120 video output port up to 74.25MHz

• Four dedicated BT.1120 video input ports at 148.5MHz

• Four BT.1120 bidirectional video input/output port at

148.5MHz

• Supports up to 16-channel real time SD encode

• Supports up to 16-channel 960H encode

• Supports up to 8-channel HD 720p encode

• Supports up to 4-channel HD 1080p encode

• Supports CIF JPEG or H.264 network stream encode

• Supports simple OSD function on the H-264 encoding path

Audio Features

• Real time 16-channel encode and 1-channel decode

compliant to ADPCM standard.

• Four digital audio input I/F compliant to I2S standard

• One digital audio output I/F compliant to I2S standard

• Audio sample rate from 8kHz to 48kHz Peripheral I/F

TW2819

DDR2

1G

DDR2

1G

16b

16b

Video Input 1

TW6874

PCI

PCI to PCIe 

Bridge

Video Input 2

Video Input 3

Video Input 4

VO1

VO2

VO3

VO4

PCI Express

BT.1120

BT.1120

BT.1120

BT.1120

HD‐SDI

HD‐SDI

HD‐SDI

HD‐SDI

FIGURE 1. TYPICAL APPLICATION DIAGRAM

July 31, 2015

FN8404.1