DSP is a fast and powerful microprocessor. It is unique in that it can process data in real time. It is this instant capability that makes DSP ideal for applications that cannot tolerate any delay. The internal processing of the DSP chip is a Harvard structure with separate programs and data. It has a dedicated hardware multiplier, which is widely used in pipeline operations and provides special DSP instructions, which can be used to quickly implement various digital signal processing algorithms. Now there are many DSP products, there are more than 200 fixed-point DSPs and more than 100 floating-point DSPs. The main suppliers of DSP chips are TI, ADI, Motorola, Lucent and Zilog, among which TI has the largest market share. Leading products: TI's TMS320C54xx (16bit fixed point), TMS320C55xx (16bit fixed point), TMS320C62xx (32bit fixed point), TMS320C67xx (16bit floating point). Representative products of general-purpose DSP chips include TI's TMS320 series, AD's ADSP21xx series, MOTOROLA's DSP56xx series and DSP96xx series, AT&T's DSP16/16A and DSP32/32C monolithic devices. Major DSP chip manufacturers and their products Texas Instruments As we all know, Texas Instruments (TI) is the world's most well-known DSP company, and its products are also the most widely used. TI's TMS320 series DSP chips are widely used in various fields. In 1982, TI successfully launched its first generation DSP chip TMS32010, which is a milestone in the history of DSP applications. Since then, DSP chips have begun to be truly widely used. Because TMS320 series DSP chips are cheap, easy to use, and powerful, they have become the most influential and successful DSP series processors. At present, DSP company TI has three major series of products in the market: TI's three main DSP product lines are the C2000 series for digital control systems; the C5000 (C54x, C55x) series is mainly for low-power, portable wireless communication terminal products; the C6000 series is mainly used for high-performance complex communication systems. . The TMS320C54x family of DSP chips in the C5000 series is widely used in communications and personal consumer electronics. (1) TMS320C2000 series for digital control and motion control, including TMS320C24x/F24x, TMS320LC240x/LF240x, TMS320C24xA/LF240xA, TMS320C28xx, etc. (2) TMS320C5000 series for low-power, handheld devices and wireless terminal applications, including TMS320C54x, TMS320C54xx, TMS320C55x, etc. (3) TMS320C6000 series for high performance, multi-function, and complex applications, including TMS320C62xx, TMS320C64xx, TMS320C67xx, etc. DSP company TI now promotes the characteristics of each of the four series of DSP 1) C5000 series (fixed point, low power consumption): C54X, C54XX, C55X Compared with other series, the main feature is low power consumption, so it is most suitable for personal and portable Internet and wireless communication applications, such as mobile phones, PDAs, GPS and other applications. Processing speed is between 80MIPS and 400MIPS. C54XX and C55XX generally only have peripherals such as McBSP synchronous serial port, HPI parallel interface, timer, DMA and so on. It is worth noting that the C55XX provides an EMIF external memory expansion interface that can be used directly with SDRAM, while the C54XX cannot be used directly. There are only two digital IOs in both series. 2) C2000 series (fixed point, controller): C20X, F20X, F24X, F24XX, C28x This series of chips has a large number of peripheral resources, such as: A/D, timer, various serial ports (synchronous and asynchronous), WATCHDOG, CAN Bus/PWM generator, digital IO pin, etc. It is a DSP optimized for control applications. Among all TI DSPs, only C2000 has FLASH, and only this series has an asynchronous serial port that can be connected to the PC's UART. 3) C6000 Series: C62XX, C67XX, C64X This series is known for its high performance and is ideal for broadband networks and digital imaging applications. 32bit, where: C62XX and C64X are fixed-point series, and C67XX is a floating-point series. This series offers an EMIF extended memory interface. This series is only available in a BGA package and can only be used to make multi-layer PCBs. And the power consumption is large. The VC33 in the C3X, which is also a floating-point series, is still widely used, but it is still widely used, but its speed is low, up to 150MIPS. 4) OMAP series: OMAP processor integrates ARM command and control functions, and also provides DSP low-power real-time signal processing capability, which is most suitable for mobile Internet devices and multimedia appliances. Other series of DSPs have had scenery, but now they are not the main products of TI. In addition to the C3X series, others are basically in the phase of elimination. For example: C3X floating point series: C30, C31, C32 C2X and C5X series: C20, C25 , C50 Each series of DSPs has its main application areas. TI has integrated software for developing DSPs, enabling text input, compilation, linking, debugging, and downloading to be done in one environment. CCS software for TMS320C54X; CC software for TMS320C2XX Analog Devices ADI also has a certain share in the DSP chip market, and has successively launched a series of DSP chips with its own characteristics. Its fixed-point DSP chips include ADSP2101/2103/2105, ADSP2111/2115, ADSP2126/2162/2164, ADSP2127/2181, ADSP-BF532 and Blackfin series, floating-point DSP chips are ADSP21000/21020, ADSP21060/21062, and Tiger Shark TS101, TS201S. Motorola Motorola's DSP chip is relatively late. In 1986, the company introduced the fixed-point DSP processor MC56001; in 1990, it introduced the floating-point DSP chip MC96002 compatible with the IEEE floating-point format. There are DSP53611, 16-bit DSP56800, 24-bit DSP563XX and MSC8101 and other products. When selecting DSP, engineers mainly consider processing speed, power consumption, program memory and data memory capacity, on-chip resources, such as the number of timers, the number of I/O ports, the number of interrupts, the number of DMA channels, etc. Here we list Some common chip models. Common chip model 1) Power supply: TPS73HD3xx, TPS7333, TPS56100, PT64xx 2) Flash: AM29F400, AM29LV400, SST39VF400 3) SRAM: CY7C1021, CY7C1009, CY7C1049 4) FIFO: CY7C425, CY7C42x5 5) Dual port: CY7C136, CY7C133, CY7C1342 6) SBSRAM: CY7C1329, CY7C1339 7) SDRAM: HY57V651620BTC 8) CPLD: CY37000 series, CY38000 series, CY39000 series 9) PCI: PCI2040, CY7C09449 10) USB: AN21xx, CY7C68xxx 11) Codec: TLV320AIC23, TLV320AIC10 12) A/D, D/A: ADS7805, TLV2543. 19V Ac Dc Adapter,19V Dc Power Adapter,Dc 19V Adapter,Interchangeable Power Adapter 19V ShenZhen Yinghuiyuan Electronics Co.,Ltd , https://www.yhypoweradapter.com