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- UID
- 864567
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NXP 公司的SAA8510移动多媒体处理器为手机和其它手提设备而设计，它能把数字视频信号转换成稿质量的模拟电视信号，并在 NTSC 和PAL TV上显示，它不需要特别的时钟或电源。
SAA8510能使任何移动设备输出电视，并有标准的接口。它支持的输入格式包括RGB888, RGB666, RGB565, YUV422和YUV420。本文给出了SAA8510的主要性能，以及SAA8510系统应用电路图。
NXP mobile multimedia processor SAA8510
Designed for use in mobile phones and other portable devices, this processor converts digital video signals into a high-quality analog TV signal that can be displayed on NTSC and PAL TV sets worldwide. It requires no specific clock or voltage supplies, and can be addressed as a simple RAM-based display controller.
The SAA8510 enables TV-out on any mobile device that has a standard LCD interface. The 8/16-bit parallel MIPI DBI-2 host interface lets the SAA8510 be addressed as a simple RAM-based display controller, so there are no real-time constraints on the host. In debug mode, the host interface provides direct access to all registers and the internal 4-Mbit frame buffer.
Supported input formats are RGB888, RGB666, RGB565, YUV422, and YUV420 for resolutions from 2 x 2 pixels to a maximum width/height of 864 pixels. (The internal SRAM holds a YUV420 frame buffer of 12 bits per pixel, so any image can be buffered with a width/height of between 2 and 864 pixels, as long as the total image size does not exceed 4 Mbits.) The input frame rate can vary from zero (still picture) to 30 frames per second.
For a simpler design with a lower component count, embedded PLLs let the processor operate based on an input clock of 19.2, 26, 27, or 38.4 MHz. There’s no need for an external 27-MHz oscillator.
主要特性：
MIPI DBI-2 host interface
Worldwide support for PAL and NTSC
4-Mbit embedded frame buffer
Supports all common mobile resolutions, including VGA @ 30 fps
Supports MacroVision copy protection and VBI data insertion
Excellent output quality based on a rich filter set and polyphase scalers
Advanced power management
Fully integrated solution requires no external oscillator or CVBS drivers
Smallest package on the market: TFBGA48 (4 x 4 mm, 0.4 pitch)
The TV-out interface supports PAL and NTSC CVBS output formats compliant with ITU-R BT.1700 and SMPTE 170M standards. The analog signal is generated by an embedded 10-bit DAC and terminated at 75 Ω, so no external drivers are required.
The processor supports VBI data insertion at 4:3, 14:9, and 16:9 aspect ratios. It also supports MacroVision copy protection (as a factory bond-out option), and CGMS-A, APS, and ASD information as described in EN300-294 and IEC61880.
Housed in a TFBGA48 package with a 0.4 pitch and a footprint of only 4 x 4 mm, the SAA8510 is the smallest solution of its kind on the market. Moreover, the package is “dark green”, meaning it’s halogen-free and complies with the RoHS directive.
图1 SAA8510系统应用电路图 |
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