Product Status: Mass Production
OVERVIEW
The TW8832 incorporates many of the features required to create multi-purpose in-car LCD display system in a single package. It integrates a high quality 2D comb NTSC/PAL/SECAM video decoder, triple high speed RGB ADCs, high quality scaler, and images enhancement functions which include Black and White Stretch and etc. It also supports panoramic scaling for conversion to wide screen display. On the input side, it supports a rich combination of CVBS, S-video, analog RGB as well as digital inputs. On the output side, it supports variety of digital panel types with its built-in timing controller.
KEY FEATURES
-
Analog Video Decoder
- NTSC (M, 4.34) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM with automatic format detection
- Three 10-bit ADCs and analog clamping circuit
- Fully programmable static gain or automatic gain control for the Y or CVBS channel
- Programmable white peak control for the Y or CVBS channel
- Software selectable analog inputs
- High quality adaptive 2D comb filter for both NTSC and PAL inputs
- PAL delay line for color phase error correction
- Image enhancement with 2D dynamic peaking and CTI
- Digital sub-carrier PLL for accurate color decoding
- Digital horizontal PLL and Advanced synchronization processing for VCR playback and weak signal performance
- Programmable hue, brightness, saturation, contrast and sharpness
- High quality horizontal and vertical filtered down scaling with arbitrary scale down ratio
Analog RGB Inputs - Triple high speed 10-bit ADCs with clamping and programmable gain amplifier.
- SOG and H/V sync support for YPbPr or RGB input
- Built-in line locked PLL with sync separator
- Support analog input resolution up to 1080i or WXGA
Digital Inputs Support - Support 656 video formats
TFT Panel Support - Built-in programmable timing controller
- Supports 3, 4, 6 or 8 bits per pixel up to 16.8 million colors with built-in dithering engine
- Support digital panel up to WVGA/SVGA resolution
- Support Serial (8-bit) RGB panel
On Screen Display - 256 programmable font RAM and 384 display RAM.
- Four windows font OSD with bordering / shadow
- Supports bit-mapped based OSD through SPI (TW8832S only)
Image Processing - High quality scaler with both up/down and nonlinear scaling support
- Built-in 2D de-interlacing function
- Programmable hue, brightness, saturation, contrast and sharpness
- Supports programmable cropping of input video and graphics
- Independent RGB gain and offset controls
- Panorama / Water-glass scaling
- Programmable 10-bit Gamma correction for each color
- Operated in Frame Sync mode
- Black/White Stretch
BLOCK DIAGRAM
PARAMETRICS
Parameters
TW8832S
Basic Information
Production Status
Mass Production
CVBS Input
Yes
S-Video Input
Yes
YPbPr Input
Yes
SCART Input
No
Analog RGB Input
Yes
Digital RGB/Y CbCr Input
BT656 Only
ADC Input Frequency (MHz)
60
Comb Filter
2D
Max Output Resolution
SVGA
Qualification Level
Automotive
De-Interlacer
2D
Color Enhancement
No
PIP
No
OSD Type
Font / SPI bitmap
OSD Font ROM
N/A
OSD Font RAM
256
External OSD
No
OSD Colors
16 Colors / 16-bit Pallette
TCON Output
Digital
Dual View Output
No
LVDS Input
No
LVDS Output
No
TTL Output
Yes
Memory Support
No
MCU
External
CCFL/LED Controller
LED
Touch-screen Controller
No
Temperature Range
-40 to +85
Related Videos
Featured Design Resources
Key Differences in TW884x Family
| Product | Input Types | ADC Input Freq. (MHz) |
Max Output Resolution |
Panel Output |
SoC Output |
Pkg Type |
Technical Highlights |
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CVBS | Comb Filter |
S-Video | Analog RGB/YPbPr |
Digital RGB/YCbCr |
LVDS Open LDI |
|||||||
| TW8844 | Yes* | 4H | No | No | Yes 2x24-bit ports |
Yes 2CH |
27 | 1080p 1920x1080 |
TTL/TCON 2CH LVDS |
MIPI-CSI2 v1.1 |
156 Ld LQFP | 1080p panel support + MIPI-CSI2 output path, improved frozen detection |
| TW8845 | Yes* | 4H | No | No | Yes 2x24-bit ports |
Yes 2CH |
27 | 1080p 1920x1080 |
TTL/TCON 2CH LVDS |
Pseudo BT.656 |
156 Ld LQFP | 1080p panel support + BT656 output path, improved frozen detection |
| TW8836 | Yes* | 4H | Yes | Yes (1080p) | Yes 24-bit |
Yes 1CH |
148 | WXGA/720p 1366x768 |
TTL/TCON 1CH LVDS |
Pseudo BT.656 |
128 Ld LQFP | 720p panel support with LVDS I/O |
*Differential Supported