EmbeddedRelated.com
TMS320C5515

TITMS320C5515

Texas Instruments
Same C55x family with comparable fixed-point DSP capabilities and different package/peripheral options.
Active623 in stock

Overview

The TMS320C5515 is a high-performance, fixed-point Digital Signal Processor (DSP) based on the C55x core architecture, designed for power-sensitive applications requiring efficient signal processing. Operating at up to 120MHz, it features 320kB of on-chip RAM and a dedicated hardware accelerator for Fast Fourier Transform (FFT) computations. The device integrates several power-saving technologies, including three on-chip LDOs and isolated power domains, to achieve power consumption as low as 0.15 mW/MHz.

Why Choose This Part

The primary advantage is its exceptional power efficiency of 0.15 mW/MHz at 60MHz, combined with a dedicated hardware accelerator that offloads complex FFT operations from the main CPU. It provides a robust set of peripherals including USB 2.0, an integrated RTC, and multiple I/O voltage support (1.8V to 3.3V) which simplifies interfacing with diverse external components. The C55x architecture also ensures software compatibility across a wide range of TI legacy DSP codebases.

Applications

Portable Medical Electronics
Ideal for battery-operated devices like hearing aids or pulse oximeters that require real-time signal analysis at ultra-low power levels.
Audio Signal Processing
Used in noise-canceling headphones and voice recognition systems where I2S interfaces and DMA-driven audio buffering are critical.
Industrial Sensor Fusion
Utilizes the integrated FFT hardware accelerator to process vibration or acoustic data for predictive maintenance in industrial environments.
Secure Biometric Devices
Processes fingerprint or voice-print data using the high-efficiency C55x instruction set while maintaining a small 196-ball BGA footprint.

Key Specifications

Type Fixed Point
Interface EBI/EMI, I2C, I2S, MMC/SD, SPI, UART/USART, USB
Clock Rate 100MHz
On-Chip RAM 320kB
Mounting Type Surface Mount
Voltage - I/O 1.8V, 2.5V, 2.8V, 3.3V
Package / Case 196-LFBGA
Voltage - Core 1.30V
Non-Volatile Memory ROM (128kB)
Operating Temperature -10degC ~ 70degC (TC)
Supplier Device Package 196-NFBGA (10x10)

Getting Started

To begin development, use the TMDX5515EZDSP USB Stick development tool which provides a complete hardware platform and integrated XDS100 emulator. Software development is supported by Texas Instruments Code Composer Studio (CCS), which includes the C55x DSP/BIOS kernel and optimized signal processing libraries. Refer to the TMS320C5515 Bootloader peripheral user guide for configuring the 128kB on-chip ROM for various boot modes.