TMS320C5535AZAYA10 TI TMS320C55x Low-Power Fixed-Point DSP 100MHz USB2.0 I2S NFBGA-144

TMS320C5535AZAYA10 Product Overview

The TMS320C5535AZAYA10 is a high-performance, low-power fixed-point digital signal processor (DSP) from Texas Instruments (TI), based on the TMS320C55x core in a compact 144-lead NFBGA (ZAY) package, running at up to 100MHz. The TMS320C5535AZAYA10 is designed for embedded applications requiring intensive digital signal processing, rich peripherals, and a minimal footprint. The TMS320C5535AZAYA10 integrates 256KB SRAM, 128KB ROM, a hardware FFT accelerator, and a USB 2.0 high-speed controller. The TMS320C5535AZAYA10 offers strong audio and communication processing capabilities: two I2S interfaces and two McBSPs connect directly to audio codecs and serial data streams; 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 SAR ADC handles simple analog signal acquisition. Thanks to the ultra-low-power architecture of the C55x core, the TMS320C5535AZAYA10 delivers 100 MIPS of processing power with very low active and standby power consumption, making it ideal for space-constrained, battery-powered portable audio devices, medical instruments, industrial meters, and IoT edge processing nodes. The TMS320C5535AZAYA10 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.

TMS320C5535AZAYA10 Core Features

Processor Core: The TMS320C5535AZAYA10 incorporates a TMS320C55x fixed-point DSP, up to 100MHz (100 MIPS), dual MAC units, instruction set optimized for low power

On-Chip Memory: The TMS320C5535AZAYA10 provides 256KB SRAM and 128KB ROM

USB 2.0: The TMS320C5535AZAYA10 features an integrated high-speed USB 2.0 controller, supporting Device and Host modes

Audio & Serial Interfaces: The TMS320C5535AZAYA10 offers 2× I2S, 2× McBSP, 1× UART, 2× SPI, 2× I2C, all with DMA support

External Storage: The TMS320C5535AZAYA10 includes an integrated MMC/SD controller, supporting SD card and eMMC boot and data storage

Hardware Acceleration: The TMS320C5535AZAYA10 integrates a built-in FFT accelerator for efficient frequency-domain computation; FIR/IIR filtering and LMS adaptive algorithm hardware acceleration are also available

Analog Peripheral: The TMS320C5535AZAYA10 contains a 10-bit SAR ADC (4 channels), suitable for keypad scanning, voltage monitoring, and simple analog acquisition

System Management: The TMS320C5535AZAYA10 features an on-chip oscillator and PLL, watchdog timer, and multiple DMA controllers

Power & Package: The TMS320C5535AZAYA10 operates with a core voltage of 1.3V, I/O voltage 1.8V/3.3V; it comes in a 144-lead NFBGA (ZAY) package, designed for ultra-low-power compact systems

TMS320C5535AZAYA10 Applications

Portable Audio Devices: The TMS320C5535AZAYA10 is well-suited for digital voice recorders, portable audio players, noise-cancelling headphones, and conference microphone arrays

Medical Instruments: The TMS320C5535AZAYA10 can be used in portable ECG/EEG acquisition, hearing aid digital processing platforms, and medical alarm and analysis modules

Industrial Meters & Sensors: The TMS320C5535AZAYA10 enables vibration analyzers, power harmonic detection, acoustic fault diagnosis, and flow metering

IoT Edge Processing: The TMS320C5535AZAYA10 is ideal for low-power edge computing nodes requiring local audio/vibration/signal processing, voice wake-up, and command recognition front-ends

Consumer & Educational Electronics: The TMS320C5535AZAYA10 can power electronic musical instrument effects, language learning machines, and smart toy voice processing

TMS320C5535AZAYA10 Key Advantages

Ultra-Low-Power DSP Performance: The TMS320C5535AZAYA10, based on the C55x ultra-low-power core, consumes very little power at full 100MHz operation and supports multiple sleep modes, making it ideal for battery-powered digital signal processing applications.

Compact 144-Lead Package: The TMS320C5535AZAYA10's NFBGA-144 offers a smaller footprint while retaining a rich set of peripherals, saving PCB space for space-constrained portable designs.

Rich Audio & Storage Interfaces: With the TMS320C5535AZAYA10, two I2S and two McBSP ports can simultaneously connect multiple digital audio devices; the MMC/SD controller supports booting from SD card and file system storage, simplifying system design.

Hardware FFT Accelerator: The TMS320C5535AZAYA10'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 TMS320C5535AZAYA10's integrated USB 2.0 controller 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.

Mature Development Ecosystem: The TMS320C5535AZAYA10 is fully 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 TMS320C5535AZAYA10 differ from the TMS320C5505?
   
   • The TMS320C5535AZAYA10 uses a 144-lead NFBGA (ZAY) package, which is smaller than the C5505's 196-lead package, making it ideal for space-constrained designs.
   • The TMS320C5535AZAYA10 has 256KB SRAM vs. 320KB on the C5505; the TMS320C5535AZAYA10 provides 2 I2S and 2 McBSP, while the C5505 offers 3 I2S.
   • Both run at 100MHz and feature USB 2.0, MMC/SD, FFT accelerator, and 10-bit ADC, making the TMS320C5535AZAYA10 a compact yet powerful alternative.
2. What is the power consumption like? Can the TMS320C5535AZAYA10 be battery-powered?
   
   • The C55x core of the TMS320C5535AZAYA10 is optimized for ultra-low-power operation, consuming very little power at 100MHz and supporting multiple low-power modes including IDLE and STANDBY.
   • The TMS320C5535AZAYA10 is well-suited for battery-powered portable audio devices, wearable medical terminals, and outdoor sensor nodes.
3. How many audio interfaces does the TMS320C5535AZAYA10 have? Can it connect to multiple audio devices simultaneously?
   
   • The TMS320C5535AZAYA10 provides 2 I2S and 2 McBSP (configurable as I2S), supporting full-duplex audio streaming.
   • The TMS320C5535AZAYA10 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 in the TMS320C5535AZAYA10?
   
   • The hardware FFT accelerator of the TMS320C5535AZAYA10 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 TMS320C5535AZAYA10 is essential for achieving real-time processing.
5. Can the TMS320C5535AZAYA10 run Linux or an RTOS?
   
   • The TMS320C5535AZAYA10 is a DSP, not an application processor targeting Linux. TI provides the DSP/BIOS real-time operating system, 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 with the TMS320C5535AZAYA10?
   
   • Use TI's free Code Composer Studio (CCS) IDE for development and debugging of the TMS320C5535AZAYA10.
   • Hardware debuggers such as the XDS100 or XDS200 series are recommended, supporting JTAG in-circuit programming and real-time debugging.
   • TI provides extensive DSP function libraries (including FFT, FIR/IIR, LMS, etc.) to quickly build algorithm prototypes on the TMS320C5535AZAYA10.
7. What boot modes does the TMS320C5535AZAYA10 support?
   
   • The TMS320C5535AZAYA10 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 for the TMS320C5535AZAYA10.
8. What is the resolution of the on-chip ADC of the TMS320C5535AZAYA10? Can it be used for high-precision sampling?
   
   • The on-chip ADC of the TMS320C5535AZAYA10 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 TMS320C5535AZAYA10.
9. Is the USB interface of the TMS320C5535AZAYA10 High-Speed 2.0? Can it act as a Host?
   
   • Yes, the TMS320C5535AZAYA10 integrates a USB 2.0 High-Speed controller, supporting both Device and Host modes.
   • In Host mode, the TMS320C5535AZAYA10 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 than the TMS320C5535AZAYA10?
    
    • Within the same family, consider the TMS320C5517 (200MHz) or TMS320C5505 (320KB SRAM) for an upgrade path from the TMS320C5535AZAYA10.
    • For floating-point operations and higher clock speeds, TI's TMS320C674x series or 66AK2Gx series heterogeneous processors are worth considering.