P3 is mainly composed of memory chips and decoding schemes (chips)!
Decoding scheme:
The scheme (decoding chip) is divided into single chip and dual chip. Single chip refers to the chip in which the control part and the MP3 decoding operation part are integrated in an integrated circuit. The dual chip is the control part is an integrated circuit, and the MP3 decoding operation part is another integrated circuit. The typical one is Philips.
The scheme mainly has the following manufacturers:
Philips: SAA7750 / SAA7751 / PNX0101ET
The sound quality is good, the function is strong and stable, the high-end machine is preferred to add a control chip in addition to the decoding chip, and the cost is high. With MP3 encoding function, the low volume feels full, the midrange performance is excellent, and the high pitch is average.
Sigmatel (Sigma Sigma): STMP3410 / 1342/3420/3520
3420 is based on the 3410, adding MP3 encoding function
On the basis of this, the 3520 has added USB2.0 functions and reduced power consumption.
Sigmatel is currently the most widely used and relatively mature solution with a relatively bright voice. Sound quality is satisfactory, vocals, and musical instruments perform well. Since many development companies are engaged in the development of this chip, more and more functions can be done at present, including electronic pictures, lyrics synchronization, TXT reading, alarm clocks, etc. But because some of its programs are placed on flash, it is prone to lost programs
Torch: 2075 and 2085 ATJ2089 / 2087 (high-end machines are much used)
2075 and 2085 are the most used in domestic low-end machines
2085 has more USB2.0 support than 2075.
Set MP3 playback, flash disk function, DVR format file support, AB repeat, LCD display function sound quality is equivalent to Sigmatel, early rework is higher, now more mature.
Sunplus (Lingyang): SPCA514A / SPCA751A
The price is cheap, the domestic low-end machine is much used, the sound quality is average, and the repair rate is low
Samsung: S3C2410
telechip: TCC730 / TCC731
South Korean, the function, performance and sound quality are better than SIGMATEL chips. The volume is low, the volume is balanced, the frequency bands are balanced, and the sound quality is wide.
SKYLARK: South Korean ECT company: domestic button machine is used, but currently does not support WMA
MosArt (Hua Si): The lowest-end solution on the market, with cheap prices, simple functions, and poor sound quality
In addition to the above, there are some less used, such as: Atmel, Taiwan ACCFAST, Zhuhai Keguang, Winbond and so on.
Memory chip:
Samsung: Quality and compatibility are the best modern: the most cost-effective, slightly lower quality.
Toshiba: Good quality and average compatibility
Decoding scheme:
The scheme (decoding chip) is divided into single chip and dual chip. Single chip refers to the chip in which the control part and the MP3 decoding operation part are integrated in an integrated circuit. The dual chip is the control part is an integrated circuit, and the MP3 decoding operation part is another integrated circuit. The typical one is Philips.
The scheme mainly has the following manufacturers:
Philips: SAA7750 / SAA7751 / PNX0101ET
The sound quality is good, the function is strong and stable, the high-end machine is preferred to add a control chip in addition to the decoding chip, and the cost is high. With MP3 encoding function, the low volume feels full, the midrange performance is excellent, and the high pitch is average.
Sigmatel (Sigma Sigma): STMP3410 / 1342/3420/3520
3420 is based on the 3410, adding MP3 encoding function
On the basis of this, the 3520 has added USB2.0 functions and reduced power consumption.
Sigmatel is currently the most widely used and relatively mature solution with a relatively bright voice. Sound quality is satisfactory, vocals, and musical instruments perform well. Since many development companies are engaged in the development of this chip, more and more functions can be done at present, including electronic pictures, lyrics synchronization, TXT reading, alarm clocks, etc. But because some of its programs are placed on flash, it is prone to lost programs
Torch: 2075 and 2085 ATJ2089 / 2087 (high-end machines are much used)
2075 and 2085 are the most used in domestic low-end machines
2085 has more USB2.0 support than 2075.
Set MP3 playback, flash disk function, DVR format file support, AB repeat, LCD display function sound quality is equivalent to Sigmatel, early rework is higher, now more mature.
Sunplus (Lingyang): SPCA514A / SPCA751A
The price is cheap, the domestic low-end machine is much used, the sound quality is average, and the repair rate is low
Samsung: S3C2410
telechip: TCC730 / TCC731
South Korean, the function, performance and sound quality are better than SIGMATEL chips. The volume is low, the volume is balanced, the frequency bands are balanced, and the sound quality is wide.
SKYLARK: South Korean ECT company: domestic button machine is used, but currently does not support WMA
MosArt (Hua Si): The lowest-end solution on the market, with cheap prices, simple functions, and poor sound quality
In addition to the above, there are some less used, such as: Atmel, Taiwan ACCFAST, Zhuhai Keguang, Winbond and so on.
Memory chip:
Samsung: Quality and compatibility are the best modern: the most cost-effective, slightly lower quality.
Toshiba: Good quality and average compatibility
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