TW2837-PB1-GE Intersil, TW2837-PB1-GE Datasheet

TW2837-PB1-GE

Manufacturer Part Number

TW2837-PB1-GE

Description

IC AUDIO/VIDEO CTRLR 4CH

Manufacturer

Intersil

Type

Audio/Video Controllerr

Datasheet

1.TW2837-PB1-GE.pdf (2 pages)

Specifications of TW2837-PB1-GE

Applications

Security Systems

Mounting Type

Surface Mount

Package / Case

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

TW2837-DAPB1-GE
TW2837-DAPB1-GE

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TW2837-PB1-GE

Manufacturer:

INTERSIL

Quantity:

200

Current page: 1 of 2
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Target Applications

New Features

Video Decoder

Dual Video Encoders

Accepts all NTSC(M/N/4.43)/PAL

(B/D/G/H/I/K/L/M/N/60) standards with

auto detection

Integrated four video analog anti-aliasing filters

and 10 bit CMOS ADCs

IF compensation filter for improvement of color

demodulation

Color Transient Improvement (CTI)

Automatic white peak control

Programmable hue, saturation, contrast,

brightness and sharpness

High performance horizontal and vertical scaler

for each path including playback input

Supports ITU-R BT.656 format or time multiplexed

output with 54MHz or 108MHz

Auto cropping / strobe for playback input with

Channel ID decoder

Supports four channel full D1 record mode

Analog QUAD/MUX System

4/8/16 Channel DVR System

Car Rear Vision System

Hair Shop System

Dental Care System

Improved video decoder with adaptive 4H

comb filters for all NTSC and PAL standards

An enhanced OSD with 256 color look up table

and supports OSD Block Move, Block Fill and

Bitmap Burst Write functions to enhance the

OSD buffer write performance

PCM 8/16-bit and u-Law/A-Law 8-bit for audio

word length

Additional audio PLL for accurate 8KHz/16KHz

sampling rate

Programmable audio sample rates: 8, 16, 32,

44.1 and 48kHz

Video field locked audio sample support

Audio master/slave I2S interface for playback

and record

Dual path digital outputs with ITU-R BT.656

standard

Dual path analog outputs with all analog

NTSC/PAL standards

Programmable bandwidth of luminance and

chrominance signal for each path

Three 10-bit video CMOS DACs

Techwell

The TW2837 is an improved version of TW2835 with four high quality

NTSC/PAL video decoders, dual color display controllers and dual video

encoders. The device includes four built-in analog anti-aliasing filters, four

10-bit ADCs, a proprietary digital gain/clamp controller, a high quality Y/C

separator to reduce cross noise, and a high performance free scaler. The

TW2837 has four built-in motion, blind and night detectors and a flexible

video display/record/playback controller supporting basic display and

MUX functions. The device also has an enhanced 256-color OSD that can

display bitmap, 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 TW2837 has two NTSC/PAL

video encoders with three 10-bit DACs that can support composite and

S-video outputs. The TW2837 also has an improved audio CODEC which

has four audio ADCs and one DAC. A built-in audio controller can generate

digital outputs for recording/mixing and accept digital input for playback.

The TW2837 can be configured up to 8/16 channel video controller using

chip-to-chip cascade connection. TW2837 is pin-to-pin compatible to

TW2835.

Dual Video Controllers

Audio CODEC

Support full triplex function with 4ch live, 4ch playback display and

4ch record output

Analog/Digital channel ID CODEC for record and playback application

Support adaptive median filter for Record

Supports pseudo 8 channel and/or dual page mode

Horizontal/Vertical mirroring for each channel

Last image captured when video-loss detected

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

interrupt for record path

Channel skip in auto sequence switch for record path when video-loss

detected

Image enhancement for zoomed or still image in display path

High performance 2X zoom to horizontal and vertical direction for

display 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 record path

256 color bitmap OSD overlay with 720x480 in NTSC / 720x588

resolution in PAL

Four programmable single boxes and four 2D arrayed boxes overlay

Mouse pointer overlay

Integrated four audio ADCs and one audio DAC

Provides multi-channel audio mixed analog output

Supports a standard I2S interface for record output and playback input

PCM 8/16 bit and u-Law/A-Law 8bit for audio word length

Programmable audio sample rate that covers popular frequencies of

8/16/32/44.1/48kHz

*Pin to Pin compatible with TW2835

4-Channel Video and Audio Controller

TW2837

For Security Applications

Related parts for TW2837-PB1-GE

TW2837-PB1-GE Summary of contents

Page 1

... 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 TW2837 has two NTSC/PAL video encoders with three 10-bit DACs that can support composite and S-video outputs. The TW2837 also has an improved audio CODEC which has four audio ADCs and one DAC ...

Page 2

... TW2837 Block Diagram Channel ID Playback Decoder Path Control ITU-R Auto-Crop & PBCLK BT656 Multi-Scaler PBIN Decoder VIN0A Dual Scaler Video VIN0B Decoder Motion Detect Dual Scaler Video VIN1A Decoder VIN1B Motion Detect Video Dual Scaler VIN2A Decoder VIN2B Motion Detect VIN3A ...

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