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TI introduces breakthrough $1.95 DSP and $55 development kit, extending sophisticated signal processing and ultra-low power to new world of cost-sensitive applications

  • New C553x ultra-low-power DSP generation offers industry’s lowest price, lowest power DSPs
  • eZdsp development kit includes free software framework for USB audio and HID applications
  • Integrated high-speed USB 2.0 with PHY, power management and eMMC/SD controller
  • Ideal for audio and voice, medical, security, voice-activated home and many other applications
  • Code compatible with existing higher performance TMS320C5504/05/14/15 ultra-low-power DSPs

DALLAS (Aug. 30, 2011) – Texas Instruments Incorporated (TI) opened order entry for the new TMS320C553x ultra-low-power DSPs on Friday, Aug. 26, enabling developers to add sophisticated signal processing to consumer audio and voice applications, portable medical equipment, biometric security, voice-activated home automation and flow meters — at an unprecedented price. The C553x DSPs offer the lowest price DSP in the industry starting at $1.95 and are supported by the $55 C5535 eZdsp development kit. The DSPs also offer up to two times lower active power consumption and up to six times lower standby power consumption than the nearest DSP competitor.

“It won’t be long before cost-sensitive audio applications offer same-room voice clarity and surround-sound functionality, your fingerprint will give you access to your home and workplace, and your voice will activate your garage door,” said Matt Muse, general manager, C5000 ultra-low-power DSP business unit, TI. “These incredible advancements can only be achieved with real-time signal processing. With TI’s new C553x ultra-low-power DSPs, developers can add sophisticated digital signal processing to devices at the price point of a microcontroller and at the lowest active and standby power consumption rate in the industry. This enables superior consumer audio solutions with low BOM cost and long battery life.”

TI software and tools: Enabling easy development and product differentiation
TI offers a free software framework for USB audio class and human interface device (HID) applications, enabling quick and easy implementation of real-time, reliable audio systems such as headsets, speakers and voice recorders. With this extensive software, developers can build solutions that will plug into a USB port, generate full duplex audio and allow control of audio volume via a USB HID interface.

Developers can begin working today with the C5535 eZdsp development kit for a one-time C55x promotional price of $55 for the next 55 days (normally priced at $99). The kit includes a credit-card-sized development board by Spectrum Digital, a free, full-featured version of Code Composer Studio (CCStudio) integrated development environment (IDE) ($495 value), headphones with microphone, a micro-SD card and an on-board emulator (up to $500 value). It also comes preloaded with the USB audio class and HID demo for an easy and comprehensive out-of-the-box experience.

Customers can easily migrate between the C553x DSPs and also to the software-compatible C5515, C5514, C5505 and C5504 ultra-low-power DSPs to rapidly create multiple unique end products that maximize R&D investment and existing software base. In addition, devices within the C553x DSP generation are also pin-to-pin compatible, enabling easy scalability to add varying functionality to a customer’s product portfolio.

C553x ultra-low-power DSPs features and benefits


Customer benefit

Generation includes the lowest price DSP on the market, starting at $1.95

Enables sophisticated real-time processing at the price of a microcontroller

Up to 50 MHz and 100 MHz performance options for each DSP

Offers flexible price-performance options

Industry’s lowest total power DSPs with total active core power < 0.15 mW/MHz at 1.05V and standby power < 0.15 mW

Extends battery life of portable applications

12 mm x 12 mm BGA package with 0.8mm pitch

Allows use of four-layer printed circuit board (PCB) to reduce overall system cost


Enables system connectivity and reduces system cost

Unprecedented integration compared to other low-cost DSPs in the industry:


On-chip memory options ranging from 64 KB to 320 KB for a variety of storage needs

Enables increased algorithm integration in a single DSP for more sophisticated applications

High-speed USB 2.0 with PHY, SD/eMMC

Enables USB applications and multiple storage options

Up to 1024-point programmable fast Fourier transform (FFT) co-processor (C5535 only)

Increases computational throughput while providing energy efficiency for a long battery life and a reduction in total system power

LCD display controller and 10-bit, four-channel successive approximation (SAR) ADC (C5535 only)

Enables increased user interaction while reducing overall system cost

1-3 low-dropout regulators (LDOs)

Reduces BOM cost and solution size

Pricing and availability
Free samples of the C5535 ultra-low-power DSPs are available today. Production pricing for C553x ultra-low-power DSPs starts at $1.95 in quantities of 1,000 units. Begin developing today with the C5535 eZdsp development kit for a one-time C55x promotional price of $55 for the next 55 days (normally priced at $99). TI’s free software framework for USB audio class and HID applications, including the out-of-the-box demo, is available for download.

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