Chapter 1 Introduction to mainstream programme performance.
1. ATMEL (Atmel) 2. Amlogic (Crystal Semiconductor morning). .
3. MXIC (Macronix) 4. Sunplus (Sunplus).
5. ESS (100 million World) 6. Zoran (Zoran). .
7. MTK (lianfake) 8. CheerTek (Leda).
9. SigmaTel (SigmaTel) 10. WinBond (Winbond). .
Comparative analysis of chapter II of the programme.
The first chapter introduces the mainstream program performance. .
1. ATMEL (aitemeier).
ATMEL Corporation is the world's advanced semiconductor design, manufacturing and marketing leader. .
For digital photo frame, ATMEL Unveils chip AT76C120, this is a CPU based on ARM7TDMI core, its solution frameworks in image processing, the use of hardware decoding JPEG decoding speed, and average decoding an image with just a 150ms Motion-JPEG Playback capabilities, and dynamic video processing also refused to support MPEG1, MPEG4. AT76C120 supports up to 1600 megapixels picture, although not in the current solution, but enough to provide a good picture quality . AT76C120 digital video output, can directly drive digital screen.In addition to the good image processing capability in the external memory card support, AT76C120 also showed very strong, full compatibility with all the storage media on the market: SD/MMC, MS/MSPro, Smart Media, xD picture Card, Compact Flash, MicroDrive (Compact Flash II), the board also supports NAND Flash and on Hard Disk (can be applied to high-definition TV). In the USB interface, connection, support USB2. .0 Slave and USB1. .1 Host. Thus, in image processing and storage to support the performance of the two terms, ATMEL of this chip can be described as doing well, and that 2 is the most important performance parameters of digital photo frame. .
In the Audio processing, AT76C120 only supports mp3 format, picture appreciation-digital photo frame product, this does not affect their market prospects. This chip is also worth mentioning is its very low power consumption, when the TTL output format, the complete output power (not including the PANEL) is less than 1. .5W and 12vDC power supply 5vDC and compatible. Other features depend on the individual programme supplier to varying degrees, are different. But the basic parts including automatic browsing, image rotation, zoom, move and slide mode; infrared remote control; mp3 background music; clock and calendar; multi-language display; OSD menu. Some solution providers to develop e-book reading function also can read TXT files; mobile games; can video message; TV recorder functions. .
Of course, while this chip has stated previously this superior performance, but it also has its performance flaws, even from today's market it is not a flaw, but at least a potential shortfalls. It is this chip does not support the Bluetooth or WiFi, so in today's networks, people want to share photos online with friends and become stronger and stronger demand, does not support Internet access and wireless transmission is indeed a potential crisis.
Somehow, the current solution or part AT76C120 more high-end, PCBA's cost price is relatively high, the specific cost analysis can refer to later chapters. Find other performance information can be collated with the disk directory document. .
2. Amlogic (Crystal morning semiconductor).
Jing Chen Semiconductor Co., Ltd. is a fast growing company, successfully developed to produce high-definition DVD player HVD list of chips and streaming TV. .
For digital photo frame market, Crystal morning introduced chip, the chip used AML7216 32bit reduced instruction set processor chip also integrates video and images, make coprocessor AML7216 to efficiently complete video and audio decode and post-processing work and complete with peripheral data interaction. Solutions based on the chip rack in video and image processing, hardware decoding AML7216 JPEG picture, decode faster, so that the picture shows the speed, but also support the decoding and playback Motion-JPEG can reach 30fps @ VGA. Static image can handle BMP, TIFF, GIF, PNG format. From this perspective, the chip's processing of the image can be described as comprehensive.In video processing, support MPEG1/2/4 formats, video output support for resolution: 720 * TV to 480NTSC @ 30fps, interlaced 720 * 576PAL @ 25fps; interlaced to Analog LCD or Digital LCD, maximum support 1024 * 768; chip integrates TCON controller for simulation screen and digital direct drive.
In external memory support, almost across the board to support existing memory card: CF, MS, SM, XD, MMC / SD, and with IDE interface, can connect IDE hard drive storage to support the internal and external USB hard drives transfer data between each other . Chip USB interface, which is rich in resources: integrating two OTG USB2. .0 Speed controller, downward compatible with USB1. .1; Each interface can be used as USB device, host or OTG. .
In the audio processing, AML7216 performances. Support mp3, wma, wav, aac, ape, flac, alac, audio playback; compatible with Dolby AC-3 5. .1 and audio decode HDCD; virtual surround, 3D sound. Built-in integrated dual-channel delta-sigma audio DACs to reduce audio output, supports dual channel digital (IEC958) and analog audio input. This powerful audio processing functions, do not know whether it is a waste of resources, which may cause adverse cost control.
AML7216 software development business under the program varies, the basic features are: multi-language OSD; picture shrink enlarged; document management, support copy, delete, modify; USB port can be directly received the printer to print pictures; side play music while watching picture; TXT documents reading. Some programs also joined the business environment, according to the light intensity around to adjust LCD backlight function. .
It is worth mentioning that AML7216 support external Bluetooth functionality, you can easily with mobile phones, PC, Bluetooth headset connection, the transmission rate. But this feature does not all vendors to develop and mature.
3. MXIC (Macronix). .
Founded in 1989 by Macronix, is one of Taiwan's largest IC enterprises, Macronix and system leader in joint solutions, from research and development, design, manufacturing to marketing services, master of professional competence.
For the digital photo frame, MXIC launched MP612, first of all be able to immediately attract our attention, is the chip super-resolution images, JPEG format picture decoding maximum support 64 million pixels, this high resolution image quality is unmatched by other programs of. MP612 only supports JPEG decoding. In the video decoding side, MP612 supports Motion-JPEG, MPEG1 / 4, and has a good bit data rate.M-JPEG maximum VGA @ 30fps; MPEG1 maximum CIF @ 30fp; MPEG4 maximum QVGA @ 30fps. Mathematical in audio, MXIC do quite comprehensive, capable of handling the mp3, wma, MPEG Audio, aac_lc Level1/2. In the external memory support, MXIC also basic full support for existing memory card: SD/MMC, MS, CF, XD, SM. And chip also supports Memory of Build-In 64M-2GB. USB Interface side, MP612 supports USB2. .0, And has the OTG function, transfer rate quickly. .
Software functionality aspects, concise MP612 do, basic features: multi language OSD; reduce the magnification of the picture; file management, support, copy, delete, modify; edge play music while watching the pictures. In addition there are not too many other features, at least not yet read the document, such as TXT, LCD backlight adaptive, extensions, not to mention the WiFi and Bluetooth capabilities. Visible, chip focus or on the picture to picture processing, monographs on high-quality images of the programme in advance to obtain good market share.
Gotta run, MP612 is both a more balanced performance in all aspects of the program, its high pixel quality to the application of large-size digital photo frame market, there is not a small advantage. .
4. Sunplus (Sunplus).
Sunplus chips used in digital photo frame There are two, SPHE8104S and SPHE8104F, which can be seen as an upgraded version of the former, not much difference between the two properties. The following is an introduction to the SPHE8104S, SPHE8104F difference will be added description. .
SPHE8104S programmes based on the system architecture in a static image processing, the chip is able to decode the JPEG, BMP, GIF, was comprehensive, but it has one of the biggest disadvantage is its decoded picture pixel, basically cannot exceed 600 megapixels. This enables the development of the market in the future to receive certain restrictions. The video decoding capabilities, support MPEG1/2/4, but does not have the decoding function M-JPEG does not have the MPEG2 Playback functionality. Audio processing, 8104S supports mp3 and wma, but did not mention some version of the presentation can decode wma. In the external memory card support, 8104S only supports triple reader: SD / MMC / MS. Some vendors may require to be able to read CF card, which has become a bottleneck in the chip. USB Interface side, 8104S supports USB2. .0 Host, this is satisfactory.Compared with 8104S 8104F in support of the storage card is relatively strong, according to the programme's development capacity, maximum support to all memory cards: SD/MMC/MS/xD/CF. And On-Board NAND Flash 8104F support. The USB interface, less than 8104S 8104F support USB1. .1Host. Two models of the chip on the USB interface will not have the OTG functionality.
Software functions, different programs on the slightly different, the basic functions: multi-language OSD; picture shrink enlarged; document management, support copy, delete, modify; side play music while watching picture. Extension functions: calendar clock. Some program providers also offer Build In IR Game. .
In General, Sunplus solution due to its display, belongs to-end scenario, because it has a certain cost price advantage in the market or the possession of certain shares.
5. ESS (million World). .
ESS Technology, Inc. (ESS Technology Inc..) in addition to the PC audio chip, ESS Technology of video (MPEG) and fax/modem technology (Modem) more customers with high-performance, advanced technology, reasonable price and complete set of chips for a software solution, it is important to the success of ESS co., one of the pillars.
ESS chips used in more types of digital photo frame, of which ESS8381 based. For the static image processing, ESS8381 support JPEG, BMP, GIF; but facing the same problem Sunplus is supported by the image pixels can not be too high, generally no more than 6 million pixels. Some solution providers may be able to provide support higher pixel image solutions, the master model may be different, but other models may not support the master BMP and GIF formats. For now, ESS solutions to difficult and large pixels in the image format both at the same time.And ESS scenarios decoding a long time, a pair of 500 megapixel pictures need 1 ~ 2s. Dynamic Imaging, 8381 support MPEG1/4 M-JPEG is not supported. In the audio processing, support mp3 and wma 8381. Memory card support, 8381 do quite comprehensive, in addition to the existing storage card xD, basic support: CF/MicroDrive, SD/MS/MS PRO/MMC. And the USB interface is also 8381 is ideal to support USB2. 0Host, but if the need to support OTG, you need an external. But 8381 does not support NAND Flash, and NAND Flash memory cards can not be realized data Press to Press. All ESS solutions do not support Bluetooth or WiFi. ESS of the other solutions the same performance and 8381, in addition to slightly different image format support. Also, that is, ESS solutions are in many image editing software, so processing speed may be slower. .
The basic functionality of ESS solutions: multi-language OSD; reduce the magnification of the picture; file management, support, copy, delete, modify; AVI movie playback; edge play music while watching the pictures. Extension: calendar clock.
Overall, ESS solutions and Sunplus belong to the same level, in the low-end market has an advantage. .
6. Zoran (William).
Zoran Digital is the world's leading consumer electronics chip solution provider. .
Application in digital photo frame, the breadth of the programme belong to low-end and cost advantages. Static image processing on the basis of the programme's application chip, usually only supports JPEG, TIFF, BMP support, GIF. Dynamic Imaging, at least some support for MPEG4, MPEG1/2 support, but do not support M-JPEG. In the audio processing, support mp3, wma, wav, sound playback effect is better. Zoran supported memory card types also varies by program providers, and basic support SD / MMC / MS, a few or subsequent versions will support xD and CF. Overall, however, supported by a single memory card comparison. USB interface support USB2. .0, And the need for an external OTG implementation. Performance can be seen above, image processing, Zoran and Sunplus, ESS close to, or even image processing to be better, but its interface to be less support on a number. .
Based on the same chip solution for basic functions: reduce the magnification of the picture; file management, support, copy, delete, modify; AVI movie playback. Extended features: edge play music while watching pictures; calendar clock.
7. MTK (Mediatek). .
United Technologies is a professional IC design company.
MTK chip applications and digital photo frame is the MT8303. MT8303 static image processing support for JPEG, but limited support for high resolution pictures. Video support for MPEG1/2/4, does not support M-JPEG. Audio processing, MT8303 supports mp3 and wma, audio and video performance of the overall general. Memory card support, the only three in one card reader supports SD / MMC / MS, USB only USB2. .0, Some versions also only supports USB1. .1. Does not support NAND Flash as well as data between memory card Press to Press.But the chip supports AV-IN, concise points is digital photo frame when you watch TV and use AV-OUT AV-IN and is the same interface. However, this design seems impractical, because the people at home will not be a clear big TV doesn't look to have presided by staring at a small screen!.
Digital Photo Frame features based on MT8303 is also relatively simple, basic functions: reduce the image to enlarge; document management, support copy, delete, modify; AVI movie player. Basically, no extensions. .
8. CheerTek (Leda).
Digital photo frame for the application of Cheertek launched CT950 and follow-up 95X series, its performance has been improved, when the current market is the most extensive application of CT950 and its program structure in the static image processing, CT950 supports JPEG, image pixels generally about 15 million pixels. .
Dynamic images support MPEG1/2/4, does not support M-JPEG. Audio processing, support mp3 and wma. Memory card support, in addition to withhold support xD, other storage cards supported: CF/SD/MS/MS PRO/MMC, but NAND Flash CT950 does not support. USB interface, supports USB1. .1Host, individual programmes are able to support USB2. .0. With regard to the development of other chip CheerTek and comparison, these CT950 chips are all subsequent products, the performance is better than CT950 . .
The digital photo frame-based CT950 basic features: multi language OSD; reduce the magnification of the picture; file management, support, copy, delete, modify; AVI movie playback; edge play music while watching the pictures. Extension: calendar clock.
9. SigmaTel (SigmaTel). .
Silicon code is photo printer market system-on-chip (SoC) solutions for leading suppliers and take advantage of its image processing expertise developed digital photo solutions. Users can use Oasis STDC7150 image processor as the core of advanced frame solution. STDC7150 is a 32-bit RISC processor, supports powerful embedded operating system, and flexible user interface design.
Solutions based on STDC7150 image processing capabilities are relatively strong, pure hardware decoding JPEG, and any image editing operations are implemented in hardware and image processing speed to support the image pixels high. But only for the chip completely static image is doing, not compatible with dynamic image processing, can not be used to play any format of video (the new chip models under development in the future to resolve the dynamic image processing problems). The system architecture in audio processing, STDC7150 support mp3 and wav format.Memory card support, supports almost all existing memory card: SD/CF/MMC/MS/xD and support NAND Flash. USB interface with USB2. .0Host, high-speed interface USB2. .0 photos easily transmitted to NAND Flash. The chip supports photos directly to your printer.
In addition to the excellent performance of the display, STDC7150 Another feature is the realization of the WiFi and Bluetooth capabilities, you can easily share photos on the Internet to achieve. .
The programme's basic features: multi language OSD; reduce the magnification of the picture; file management, support, copy, delete, modify; edge play music while watching pictures; print output. Extended features: Bluetooth, WiFi, calendar clock.
10. WinBond (Winbond). .
Application and WinBond chips W90P710 digital photo frame. The chip ARM7TDMI-based, application in the digital photo frame system architecture.
The chip with the same type of SigmaTel, but also belong to the hardware decoding JPEG images, but can not handle video. Higher image quality, more suitable for applications with large-size screen. Audio support for mp3. Memory card, the only support SD / MMC card. USB Interface only supports USB1. .1. From these seems a lot less than the SigmaTel. And there is no Bluetooth and WiFi capabilities. .
Programme based on the basic features of W90P710: multi language OSD; reduce the magnification of the picture; file management, support, copy, delete, modify; edge play music while watching the pictures. Extension: calendar clock.
Chapter programs analyzed. .
This chapter describes a price ratio and programmes featured on mainstream programmes fall into three categories:.
The first category, Atmel, Amlogic, MXIC, this class can be defined as the current high-end solutions in the market;. .
The second category, Sunplus, ESS, Zoran, MTK, CheerTek, this class can be defined as the current market for low-end solution.
The third category, SigmaTel, Winbond, which belongs to a class of single function. .
First class solutions, performance is generally quite comprehensive, dynamic and static image processing, image processing, audio processing, storage cards support, USB, and extended features are done on the basic of complete coverage. Comparison of the three scenarios, also has its own characteristics. Atmel's solutions power on doing very well, its ultra-low power consumption and support the IDE hard drive can serve as a TV Recorder to be a bright spot; Amlogic solution is very good in audio processing, and its USB interface, the most abundant resources It is also the only high-end programs can do Bluetooth; MXIC solution to the most outstanding in the picture shows, the 64 million pixels of image decoding is very suitable for large screen applications.Three scenarios of PCBA costs are higher, MXIC costs less than the other two top 1 ~ 2USD, while currently development Amlogic was also not very mature and may vary depending on the programme's different situations encountered problems.
Second solution, PCBA cost is much smaller than the first class, mostly between 95 ~ 125RMB, and the board structure is relatively simple. Cost advantages are mainly the cost of sacrificing display performance. This type of display in the picture there is a common problem does not support high resolution pictures, which show very demanding for large-screen clients, may not be suitable. And also to pay attention to this type of program, performance on other small differences, because some customers may have some hard and fast performance indicators.Especially in the storage card support, according to programme suppliers, their memory card support probably relatively large. This class extends the functionality of many can be customized according to customer needs, these are fine on the programme.
The third solution, called the single function of a class, but it does not mean poor performance. Such solutions are basically to do with the framework of the embedded digital photo frame, picture decoding performance of its hardware is very good, photo quality is also better, compared with the first category, but other relatively simple functions, such as can not see any format of film. For some market position, can not play the film may be allowed. .
In addition, the rise of WiFi and Bluetooth, we can also mention Amlogic and Samsung that they support the Bluetooth; SigmaTel and made no mention of the King is the only supported WiFi.
