TW2834 Intersil Corporation, TW2834 Datasheet

TW2834

Manufacturer Part Number

TW2834

Description

Manufacturer

Intersil Corporation

Datasheet

1.TW2834.pdf (2 pages)

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Security Surveillance IC Solutions

Target Applications

Four Video Decoders

Dual Video Encoders

Analog Quad\Mux Security System

4/8/16 Ch. Digital Video Recorder (DVR)

Car Rear Vision System

Four built-in analog anti-aliasing filters

Accepts all NTSC/PAL standard formats with

auto detection

Integrated four anti-aliasing filters and 10-bit

CMOS ADCs

High performance adaptive comb filters for all

NTSC/PAL standards

IF compensation filter for improvement of

color demodulation

PAL delay lines for correcting PAL phase errors

Programmable hue, saturation, contrast,

brightness and sharpness

Dual high performance horizontal and vertical

scaler for each channel

Four built-in motion detectors with 16X12 cells

and blind detectors

Fast video locking system for Non-real time

system

Auto cropping / strobe for playback input with

Channel ID decoder

Supports four channel full D1 record output

and playback input

2 path digital outputs with ITU-R BT.656

standards

2 path analog outputs with all analog

NTSC/PAL standards

Supports CVBS or S-Video for each path

Programmable bandwidth for luminance and

chrominance path

Four 10-bit video CMOS DACs

Techwell

www.techwellinc.com

The TW2834 has four high quality NTSC/PAL video decoders, dual

color display controllers and dual video encoders. The TW2834 contains

four built-in analog anti-aliasing filters, four 10-bit Analog-to-Digital

converters, proprietary digital gain/clamp controller, high quality Y/C

separator to reduce cross-noise and high performance dual scaler. Four

built-in motion and blind detectors can increase the feature of a security

system. The TW2834 has a flexible video display controller including basic

QUAD and MUX functions. The TW2834 also has excellent graphic overlay

function that displays character/bitmap for OSD, single box, 2D array box,

and mouse pointer. The built-in channel ID CODEC allows auto decoding

and displaying during playback and the additional scaler on the playback

supports multi-cropping function of the same field or frame image. The

TW2834 contains two video encoders with four 10-bit Digital-to-Analog

converters for providing 2 composite or S-video outputs. The TW2834 also

can be extended up to 8/16 channel video controller using chip-to-chip

cascade connection.

Dual Video Controllers

Features

Full Live/Strobe/Switch function

Various channel attribute control

Non-realtime application such as Pseudo 8 Channel or Dual page

Horizontal / Vertical Mirroring for each channel

Last image capture when video-loss detected

Auto sequence switch with 128 queues and/or manual switch by

interrupt for Y Path

Channel skip in Auto sequence switch for Y Path when video-loss

detected

Image enhancement for zoomed or still image in X Path

High performance 2X zoom to horizontal and vertical direction for X

Path

Supports save and recall function for X Path

Extendable up to 8/16 channel video controller using cascade

connection

Quad MUX switch with 32 queues and/or manual control by

interrupt for Y Path

Character/Bitmap overlay for OSD with 720x480 resolution in NTSC /

720x588 in PAL

Sixteen programmable single boxes overlay

Four 2D arrayed boxes overlay with dual color for motion result or

table display

Mouse pointer overlay

Analog/Digital Channel ID Encoder

208 pin PQFP Package

4 Channel Video QUAD/MUX Controller

TECHWELL

SECURITY

TW2834

For Security Applications

Related parts for TW2834

TW2834 Summary of contents

Page 1

... The TW2834 contains two video encoders with four 10-bit Digital-to-Analog converters for providing 2 composite or S-video outputs. The TW2834 also can be extended up to 8/16 channel video controller using chip-to-chip cascade connection. ...

Page 2

... Security Surveillance IC Solutions TW2834 Block Diagram PBCLK ITU-R BT656 Channel ID PBIN Decoder Decoder VIN0A Dual Scaler Video MUX Decoder VIN0B Motion Detect VIN1A Dual Scaler Video MUX Decoder VIN1B Motion Detect VIN2A Dual Scaler Video MUX Decoder VIN2B Motion Detect VIN3A ...

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