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PDF TW2836 Data sheet ( Hoja de datos )
| Número de pieza | TW2836 | |
| Descripción | 4 Channel Video QUAD/MUX Controller | |
| Fabricantes | Intersil | |
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Techwell™
NOT RECOMMENDED FOR NEW DESIGNS
Contact our Technical Support Center at
1-888-INTERSIL or www.intersil.com/tsc
4 Channel Video QUAD/MUX Controller
For Security Applications
TW2836
The TW2836 has four high quality NTSC/PAL
video decoders, dual color display controllers
and dual video encoders. The TW2836 contains
four built-in analog anti-aliasing filters, four 10 bit
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
security system feature. The TW2836 has
flexible video display/record/playback controller,
including basic display and MUX functions. The
TW2836 also has an 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
TW2836 contains two video encoders with three
10 bit Digital-to-Analog converters to provide 2
composite or S-video. The TW2836 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
Supports full triplex function with 4ch live,
4ch playback display and 4ch record output
Analog/Digital channel ID CODEC for record
and playback application
Supports 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
July 2, 2012
FN7741.1
1
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, 2012. 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  
TW2836
Table of Contents
Pin Descriptions .............................................................................................................................8
Pin Diagram .................................................................................................................................14
Functional Description.....................................................................................................................16
Video Input ..................................................................................................................................16
Analog Video Input....................................................................................................................18
Anti-aliasing Filter .................................................................................................................19
Analog-to-Digital Converter ..................................................................................................19
Sync Processing .....................................................................................................................20
Color Decoding ......................................................................................................................21
Luminance Processing............................................................................................................23
Chrominance Processing ........................................................................................................24
Realtime Record Mode...........................................................................................................25
Digital Video Input ....................................................................................................................26
Digital Video Input Format ....................................................................................................26
Channel ID Decoder...............................................................................................................27
Cropping and Scaling Function ..................................................................................................29
Cropping Function for Live ....................................................................................................29
Scaling Function for Live .......................................................................................................30
Cropping and Scaling Function for Playback .........................................................................34
Motion Detection..........................................................................................................................36
Mask and Detection Region Selection........................................................................................37
Sensitivity Control .....................................................................................................................38
Level Sensitivity ....................................................................................................................38
Spatial Sensitivity ..................................................................................................................38
Temporal Sensitivity ..............................................................................................................38
Velocity Control ........................................................................................................................39
Blind Detection ..........................................................................................................................41
Night Detection..........................................................................................................................41
Video Control...............................................................................................................................42
Channel Input Selection .............................................................................................................43
Channel Operation Mode ...........................................................................................................44
Live Mode..............................................................................................................................44
Strobe Mode...........................................................................................................................45
Switch Mode ..........................................................................................................................47
Channel Attribute.......................................................................................................................51
Background Control ...............................................................................................................51
Boundary Control...................................................................................................................51
Blank Control.........................................................................................................................51
Freeze Control........................................................................................................................51
5
5 Page 
TW2836
Memory Interface Pins
Name
DATA[31:0]
ADDR[10:0]
BA1
Number
Type
QFP LBGA
Description
76,77, R8,P8,
78,79, N8,T9,
80,82, R9,P9,
83,84, N9,R10,
85,86, P10,T11,
88,89, R11,P11,
90,91, N11,T12,
92,94, R12,P12,
118,119, L15,L14,
120,121, L13,K15,
123,124, K14,J16,
125,126, J15,J14,
127,129, J13,H16,
130,131, H15,H14,
132,134, H13,G15,
135,136 G14,F16
95,96, N12,R13,
97,98, P13,T14,
100,101, R14,P14,
102,103, T15,R15,
106,107, R16,P16,
108 P15
I/O
O
SDRAM data bus.
SDRAM address bus. ADDR[10] is AP.
109 N15 O SDRAM bank1 selection.
BA0 111 N14 O SDRAM bank0 selection.
RASB
113 M15 O SDRAM row address selection.
CASB
114 M14 O SDRAM column address selection.
WEB
115 M13 O SDRAM write enable.
DQM
117 L16 O SDRAM write mask.
CLK54MEM 112
M16 O SDRAM clock.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TW2836.PDF ] | |
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