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PDF TW2835 Data sheet ( Hoja de datos )
| Número de pieza | TW2835 | |
| Descripción | 4 Channel Video and Audio Controller | |
| Fabricantes | Intersil | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TW2835 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Techwell
NOT RECOMMENDED FOR NEW DESIGNS
Contact our Technical Support Center at
1-888-INTERSIL or www.intersil.com/tsc
TW2835
4 Channel Video and Audio Controller
For Security Applications
Data Sheet from Techwell, Inc.
January 10, 2011 1
FN7740.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011. All Rights Reserved
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.
1 page  
TW2835
Introduction
The TW2835 has four high quality NTSC/PAL video decoders, dual color display controllers and
dual video encoders. The TW2835 contains four built-in analog anti-aliasing filters, four 10bit
Analog-to-Digital converters, and proprietary digital gain/clamp controller, high quality Y/C
separator to reduce cross-noise and high performance free scaler. Four built-in motion, blind
and night detectors can increase the feature of security system. The TW2835 has flexible video
display/record/playback controller including basic display and MUX functions. The TW2835 also
has excellent graphic overlay function that displays 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 TW2835 contains two video encoders with three 10bit Digital-to-
Analog converters to provide 2 composite or S-video. The TW2835 also includes audio CODEC
that has four audio Analog-to-Digital converters and one Digital-to-Analog converter. A built-in
audio controller can generate digital outputs for recording/mixing and accepts digital input for
playback. The TW2835 can be extended up to 8/16 channel video controller using chip-to-chip
cascade connection.
Features
Four Video Decoders
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
High performance adaptive 4H comb filters for all NTSC/PAL standards
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
Fast video locking system for non-realtime application
Four built-in motion detectors with 16X12 cells and blind and night detectors
Additional digital input for playback with ITU-R BT.656 standard
Auto cropping / strobe for playback input with Channel ID decoder
Supports four channel full D1 record mode
Dual Video Controllers
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
5 FN7740.0
January 10, 2011
5 Page 
TW2835
Digital Audio Interface Pins
Name
ACLKR
ASYNR
ADATR
ADATM
ACLKP
ASYNP
ADATP
ALINKI
ALINKO
Number
QFP LBGA
27 H3
26 H2
25 H1
23 G3
31 J2
30 J1
28 H4
137 F15
22 G2
Type
Description
O Audio serial clock output of record.
O Audio serial sync output of record.
O Audio serial data output of record.
O Audio serial data output of mixing.
I/O Audio serial clock input/output of playback.
I/O Audio serial sync input/output of playback.
I Audio serial data input of playback.
I Link signal for multi-chip connection.
O Link signal for multi-chip connection.
11 FN7740.0
January 10, 2011
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TW2835.PDF ] | |
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