Overview:
AU8503 is a sophisticated and highly integrated IC for digital ATSC 8-VSB TV transmission and analog BTSC decoding, builds on Auvitek's powerful and efficient demodulator algorithm and adaptable filter blocks technology. AU8503 is an ideal device for HD/SDTV, STB and digital tuner products.
Features:
Digital TV Demodulation:
- Built-in 30dB range analog AGC and 12-bit ADC
- Built-in Tuner RF and IF AGC controllers
- Programmable IF frequency
- ATSC compliant 8-VSB demodulation
- Transport Stream or Program Stream input/output in parallel or serial format
Bus and Interface:
- I2S for audio output
- I2C Bus support(slave mode)
- GPIO support
Package: 128 pin LQFP
Analog TV Processor:
- NTSC analog demodulation and audio/video separation filters
- TV decoder with 2-D comb filter
- VBI data slicer
- Supports up to four analog video inputs: CVBS and S-video
- Control of brightness, contrast, saturation and hue
- Three levels of Macrovision copy protection detection according to Macrovision detection specification Rev.1
- Adaptive anti-alias filtering and versatile filter bandwidth selection
- Video output in ITU656 format
Audio Processor:
- BTSC TV sound decoder
- Mono/stereo/SAP audio input support
- Digital/analog output format configurable
- On-chip MCLK(512*Fs) output
Applications:
- HD/SDTV
- Set-top boxes
- NIM tuner
Block Diagram:
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