Description

Product Category: IC Chips

TW9908AAPB is an electronic component model manufactured by Techwell, Inc. It is a high quality NTSC, PAL, and SECAM video decoder plus a down scaler designed for multimedia applications. This model utilizes the mixed-signal 3.3V CMOS technology, providing a low-cost and low-power integrated solution. It requires minimal external components due to its integrated analog front-end with AGC, clamping, and three 8-bit high-speed ADCs. It offers exceptional picture quality with the help of adaptive comb filter and luma/chroma processing techniques. The TW9908AAPB also features a high-quality internal scaling engine for arbitrarily filtered down scaling of the output picture. It supports Closed-Caption decoding and VBI data pass-through for various data applications such as Closed-Captioning and Intercast™.

Specifications and features

• NTSC (M, 4.34) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM with automatic format detection
• Advanced synchronization processing for VCR fast forward, backward, and pause mode
• Software selectable analog inputs: Up to four composite video inputs or three composite and one S-video inputs
• Two 8-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
• Switchable Notch or 2H comb filter Y/C separation
• PAL delay line for color phase error correction
• Image enhancement with programmable peaking
• Digital sub-carrier PLL for accurate color decoding
• Digital Horizontal PLL and advanced synchronization processing for non-standard video signals
• Programmable hue, brightness, saturation, and contrast
• Automatic color control and color killer
• High quality horizontal and vertical filtered scaling with arbitrary scale down ratio
• Detection of level of copy protection according to Macrovision standard
• Programmable output cropping
• VMI 1.4 compatible 8-bit or 16-bit pixel interface
• ITU-R 601 or ITU-R 656 compatible output YCbCr(4:2:2) output format
• Closed caption decoding
• VBI data pass through, raw ADC data for Intercast™
• Two wire MPU serial bus interface
• Power-down mode
• Typical power consumption: 0.4W
• Single 27MHz crystal for all standards
• Supports 24.54MHz and 29.5MHz crystal for high resolution square pixel format
• 5V tolerant I/O
• 3.3 V power supply
• 100-pin PQFP package

Application Scenarios

The TW9908AAPB is ideal for multimedia applications that require high-quality video decoding and down scaling. It can be used in various devices such as video players, DVD recorders, set-top boxes, and multimedia projectors. With its support for multiple video standards and its extensive features, this electronic component model offers versatile applications in the field of multimedia technology.

Comparison

• High-quality NTSC, PAL, and SECAM video decoding
• Low-cost and low-power integrated solution
• Integrated analog front-end with AGC, clamping, and high-speed ADCs
• Exceptional picture quality with adaptive comb filter and luma/chroma processing
• Arbitrarily filtered down scaling of the output picture
• Support for Closed-Caption decoding and VBI data pass-through
• Flexible selection of analog inputs
• Programmable gain control and white peak control
• Various video processing features such as comb filter, color phase error correction, and image enhancement
• Accurate color decoding with digital sub-carrier PLL
• Support for non-standard video signals
• Programmable color settings
• High-quality horizontal and vertical scaling
• Copy protection detection according to Macrovision standard
• VMI 1.4 compatible output interface
• Support for multiple crystal frequencies
• Wide power supply voltage range

• Requires external components for proper functionality
• Not suitable for devices that do not require video decoding and down scaling
• Only available in 100-pin PQFP package