Analog Devices ADV8003, Руководство по оборудованию

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ADV8003 Hardware Manual
Rev. B, August 2013 15
1. INTRODUCTION TO THE ADV8003
1.1. OVERVIEW
The ADV8003 is a video signal processor (VSP) with TTL and Serial Video inputs that can de-interlace and scale input video, generate
and blend a bitmap based on-screen display (OSD) and output the blended video using one or more of the part’s outputs; dual HDMI
transmitters and a 6-DAC encoder with SD and HD support.
The ADV8003 has three video inputs – the video TTL input, the EXOSD TTL input and the Serial Video receiver (Rx). The combined
video TTL input and EXOSD TTL input constitute the flexible 60-bit TTL input port. The 60-bit TTL input port can be arranged in a
variety of fashions to accept one input video stream (for example, a 48-bit 3 GHz input video stream from ADV7619) or two input video
streams (for example, a 36-bit input video stream from ADV7844 and a 24-bit input video stream from an external OSD generator). Once
the data is received, the video TTL and EXOSD TTL inputs can be connected to either the primary input channel or the secondary input
channel. From these input channels, the video data can be sent to the internal video processing blocks (for example, primary VSP or
secondary VSP).
The Serial Video Rx is connected to the RX input channel. The Serial Video Rx accommodates inter-chip transfer of data over an HDMI
compatible interface (for example, from an HDMI (Rx) such as ADV7850 or transceiver such as ADV7623). The ADV8003 does not
support EDID or DDC activity on this port.
The motion adaptive de-interlacer in the ADV8003 provides excellent edge detection and excellent ultra-low angle performance. Per-pixel
motion-adaptive de-interlacing is used for natively interlaced input video (for example, a live sport broadcast) where still parts of the
image are reconstructed from information on both the odd and even fields, and moving parts of the image are interpolated by an
advanced interpolation algorithm. The de-interlacer can also recognize when interlaced input video originally came from progressive
content (for example, 24 Hz movie content or 30 Hz documentary content) and reconstructs the original frames.
Dual video scalers allow the ADV8003 to support two different output resolutions on its outputs, for example, 1080p60 on HDMI TX1
and 720p on HDMI TX2 and the HD encoder. The primary VSP (PVSP) in the ADV8003 is capable of upscaling from 480i to 4k x 2k
formats. The secondary VSP (SVSP) in the ADV8003 is used to provide a second output resolution to accommodate dual zone systems.
Also available in the ADV8003 are image enhancing features such as random noise reduction (RNR), mosquito noise reduction (MNR)
and block noise reduction (BNR), detail enhancement and automatic contrast enhancement (ACE).
The ADV8003 features an internal bitmap based OSD generator capable of generating OSDs of up to 4k x 2k. External solutions can also
be implemented and fed into the ADV8003 for blending with the main video. A bitmap based OSD is an advanced form of OSD display,
which can add effects such as scrolling, animation and 3D depth to OSD displays. This allows customers to create advanced OSD designs
to differentiate their products. Once created, OSD designs are stored in an external SPI flash memory connected to the ADV8003. The
control of the OSD must be performed from the system microcontroller via SPI. OSD designs can be created using ADI’s software
development tool,
Blimp OSD .
The ADV8003 offers flexible configuration of its internal circuitry allowing the output of one, two or three input channels simultaneously.
Video can be output from the ADV8003 via one or both of the HDMI transmitters and the 6-DAC SD/HD video encoder. Both HDMI
transmitters support the HDMI v1.4 specifications of increased resolutions, 3D video and audio return channel (ARC). The ADV8003
also integrates an HDMI v1.4 CEC controller that supports the capability discovery and control (CDC) feature. The ADV8003 supports
both S/PDIF and 6-channel I
2
S audio. Its high fidelity 6-channel I
2
S can transmit either stereo or 5.1 surround audio up to 768 kHz. The
S/PDIF can carry compressed audio including Dolby Digital, DTS, and THX. Direct Stream Digital (DSD) audio signals can also be input
on one of six DSD audio inputs.
The ADV8003 includes a high-speed digital-to-analog video encoder. Six high speed, Noise Shaped Video (NSV), 12-bit video DACs
provide support for composite (CVBS), S-video (Y/C), and component (YPrPb/RGB) analog outputs in either SD, ED, or HD video
formats up to 1080p. In addition, simultaneous SD and ED/HD formats are supported. 216 MHz (SD and ED) and 297 MHz (HD)
oversampling ensures that external output filtering is not required.