TMS320C5505AZCHA10 TI TMS320C55x Low-Power Fixed-Point DSP 100MHz USB2.0 I2S NFBGA-196

TMS320C5505AZCHA10 Product Overview

The TMS320C5505AZCHA10 is a high-performance, low-power fixed-point digital signal processor (DSP) from Texas Instruments (TI), based on the TMS320C55x core in a compact NFBGA-196 package, running at up to 100MHz. The TMS320C5505AZCHA10 is designed for embedded applications requiring intensive digital signal processing with a rich set of integrated peripherals. The TMS320C5505AZCHA10 features large on-chip memory (320KB SRAM, 128KB ROM), a hardware FFT accelerator, and a USB 2.0 high-speed controller. The TMS320C5505AZCHA10 offers strong audio and communication processing capabilities: three I2S interfaces connect directly to audio codecs; standard serial interfaces such as UART, SPI, and I2C flexibly interface with sensors and communication modules; and an MMC/SD controller supports external storage expansion. An on-chip 10-bit successive-approximation ADC handles simple analog signal acquisition. Thanks to the ultra-low-power architecture of the C55x core, the TMS320C5505AZCHA10 delivers 100 MIPS of processing power with very low active and standby power consumption, making it ideal for battery-powered portable audio devices, medical instruments, industrial meters, and IoT edge processing nodes. The TMS320C5505AZCHA10 is supported by TI's mature Code Composer Studio IDE and extensive DSP software libraries, helping engineers rapidly develop algorithms and bring products to market.

TMS320C5505AZCHA10 Core Features

Processor Core: The TMS320C5505AZCHA10 features a TMS320C55x fixed-point DSP, up to 100MHz (100 MIPS), dual MAC units, instruction set optimized for low power

On-Chip Memory: The TMS320C5505AZCHA10 provides 320KB SRAM (256KB single-access + 64KB dual-access RAM), 128KB ROM

USB 2.0: The TMS320C5505AZCHA10 integrates a high-speed USB 2.0 controller, supporting Device and Host modes

Audio Interfaces: The TMS320C5505AZCHA10 offers 3× I2S interfaces, supporting full-duplex audio streaming, directly connectable to audio ADC/DAC/Codec

Serial Interfaces: The TMS320C5505AZCHA10 includes 2× UART, 2× SPI, 2× I2C, all with DMA support

External Storage: The TMS320C5505AZCHA10 integrates an MMC/SD controller, supporting SD card and eMMC boot and data storage

Hardware Acceleration: The TMS320C5505AZCHA10 features a built-in FFT accelerator for efficient frequency-domain computation; FIR/IIR filtering and LMS adaptive algorithm hardware acceleration

Analog Peripheral: The TMS320C5505AZCHA10 has a 10-bit SAR ADC (4 channels), suitable for keypad scanning, voltage monitoring, and simple analog acquisition

System Management: The TMS320C5505AZCHA10 incorporates on-chip oscillator and PLL, watchdog timer, multiple DMA controllers

Power & Package: The TMS320C5505AZCHA10 operates with core voltage 1.3V, I/O voltage 1.8V/3.3V; NFBGA-196 package, ultra-low-power design

TMS320C5505AZCHA10 Applications

Portable Audio Devices: The TMS320C5505AZCHA10 is suitable for digital voice recorders, portable audio players, noise-cancelling headphones, conference microphone arrays

Medical Instruments: The TMS320C5505AZCHA10 enables portable ECG/EEG acquisition, hearing aid digital processing platforms, medical alarm and analysis modules

Industrial Meters & Sensors: The TMS320C5505AZCHA10 can be used in vibration analyzers, power harmonic detection, acoustic fault diagnosis, flow metering

IoT Edge Processing: The TMS320C5505AZCHA10 powers low-power edge computing nodes requiring local audio/vibration/signal processing, voice wake-up and command recognition front-ends

Consumer & Educational Electronics: The TMS320C5505AZCHA10 is found in electronic musical instrument effects, language learning machines, smart toy voice processing

TMS320C5505AZCHA10 Key Advantages

Ultra-Low-Power DSP Performance: Based on the C55x ultra-low-power core, the TMS320C5505AZCHA10 consumes very little power at full 100MHz operation and supports multiple sleep modes, making it ideal for battery-powered digital signal processing applications.

Rich Audio & Storage Interfaces: Three I2S ports of the TMS320C5505AZCHA10 can simultaneously connect multiple digital microphones or audio codecs; the MMC/SD controller supports booting from SD card and file system storage, simplifying system design.

Hardware FFT Accelerator: The TMS320C5505AZCHA10's built-in FFT coprocessor significantly speeds up spectrum analysis, audio noise reduction, vibration detection, and other algorithms while freeing the DSP core for other control tasks.

USB 2.0 High-Speed Communication: The integrated USB 2.0 controller of the TMS320C5505AZCHA10 enables high-speed data exchange with a PC or mobile platform as a device, or can act as a host to read external USB drives or connect USB audio devices.

Complete Peripherals & DMA Architecture: UART, SPI, and I2C interfaces of the TMS320C5505AZCHA10 each feature dedicated DMA channels, enabling efficient background data transfers, reducing CPU interrupt overhead, and improving system real-time performance.

Mature Development Ecosystem: The TMS320C5505AZCHA10 is supported by free Code Composer Studio (CCS) IDE and DSP/BIOS real-time operating system, along with extensive application notes and reference designs, significantly shortening development cycles.

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FAQ

1. How does the TMS320C5505AZCHA10 differ from a standard MCU?
   
   • The TMS320C5505AZCHA10 is a professional digital signal processor (DSP) with dual MAC units and a hardware FFT accelerator, excelling at intensive mathematical operations such as audio processing and vibration analysis, far outperforming standard MCUs in real-time signal processing.
   • At the same time, the TMS320C5505AZCHA10 integrates rich peripherals (USB, I2S, MMC/SD, UART/SPI/I2C), offering the control flexibility of an MCU—ideal for applications requiring both control and signal processing in a single chip.
2. What is the power consumption like? Can it be battery-powered?
   
   • The C55x core of the TMS320C5505AZCHA10 is optimized for ultra-low-power operation, consuming very little power at 100MHz and supporting multiple low-power modes including IDLE and STANDBY.
   • The TMS320C5505AZCHA10 is well-suited for battery-powered portable audio devices, wearable medical terminals, and outdoor sensor nodes.
3. How many I2S interfaces does it have? Can it connect to multiple audio devices simultaneously?
   
   • The TMS320C5505AZCHA10 provides 3 independent I2S interfaces supporting full-duplex audio streaming.
   • It can simultaneously connect to a digital microphone array, speakers, and a Bluetooth audio module, meeting the needs of multi-channel audio capture and playback.
4. How useful is the hardware FFT accelerator?
   
   • The hardware FFT accelerator of the TMS320C5505AZCHA10 can reduce the computation time for 256-point or 512-point FFTs by several times, significantly lowering the CPU load.
   • For applications requiring real-time spectrum display, audio noise reduction, or vibration frequency monitoring, the hardware accelerator in the TMS320C5505AZCHA10 is essential for achieving real-time processing.
5. Can it run Linux or an RTOS?
   
   • The TMS320C5505AZCHA10 is a DSP, not an application processor targeting Linux. TI provides the DSP/BIOS real-time operating system for the TMS320C5505AZCHA10, which is suitable for deterministic, low-latency signal processing tasks.
   • For systems requiring both Linux and DSP algorithms, consider TI's DaVinci or OMAP series heterogeneous processors.
6. What tools and software are needed for development?
   
   • Use TI's free Code Composer Studio (CCS) IDE for development and debugging. The TMS320C5505AZCHA10 is fully supported by CCS and TI's DSP/BIOS environment.
   • Hardware debuggers such as the XDS100 or XDS200 series are recommended, supporting JTAG in-circuit programming and real-time debugging for the TMS320C5505AZCHA10.
   • TI provides extensive DSP function libraries (including FFT, FIR/IIR, LMS, etc.) to quickly build algorithm prototypes for the TMS320C5505AZCHA10.
7. What boot modes does the chip support?
   
   • The TMS320C5505AZCHA10 supports multiple boot modes, including SPI Flash, I2C EEPROM, MMC/SD card, and USB, offering high flexibility.
   • The most suitable boot medium can be selected based on product requirements, simplifying the mass-production programming process.
8. What is the resolution of the on-chip ADC? Can it be used for high-precision sampling?
   
   • The on-chip ADC of the TMS320C5505AZCHA10 is a 10-bit SAR type with 4 channels, suitable for auxiliary functions such as keypad detection and battery voltage monitoring.
   • If high-precision audio or sensor sampling is required, it is recommended to use external dedicated ADCs connected via I2S or SPI to the TMS320C5505AZCHA10.
9. Is the USB interface High-Speed 2.0? Can it act as a Host?
   
   • Yes, the TMS320C5505AZCHA10 integrates a USB 2.0 High-Speed controller, supporting both Device and Host modes.
   • In Host mode, the TMS320C5505AZCHA10 can directly connect to USB drives, USB audio devices, or USB Bluetooth adapters, facilitating storage expansion and wireless connectivity.
10. What are the upgrade options if I need higher DSP performance?
    
    • Within the same series, consider the TMS320C5515/5517, which integrate more memory and an LCD controller compared to the TMS320C5505AZCHA10.
    • For floating-point operations and higher clock speeds than the TMS320C5505AZCHA10, TI's TMS320C674x series or 66AK2Gx series heterogeneous processors are worth considering.