TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

4.3Electrical Characteristics Over Recommended Ranges of Supply Voltage and Operating Case Temperature (Unless Otherwise Noted)

 

PARAMETER

 

Voltage

V

High-level output voltage(2)

OH

 

 

Output

VOL

Low-level output voltage(2)

 

II

Input current for I/O without

 

internal pull-up/pull-down

 

II(pullup)

Input current for I/O with internal

 

pull-up(3)(4)

Current

II(pulldown)

Input current for I/O with internal

Input/Outp

pull-down

(3)(4)

ut

 

 

IOH

High-level output current

 

 

IOL

Low-level output current

 

IOZ

I/O off-state output current

Capacitan

CI

Input capacitance

ce

CO

Output capacitance

 

Resolution

Resolution

 

INL

Integral non-linearity, best fit

DAC

 

 

 

 

DNL

Differential non-linearity

 

Compliance

Output compliance range

 

VOH(VIDBUF)

Output high voltage (top of 75%

Video

NTSC or PAL colorbar)(5)

Buffer

VOL(VIDBUF)

Outpupt low voltage (bottom of

 

sync tip)

 

TEST CONDITIONS (1)

VDD=MIN, IOH=MAX

VDD=MIN, IOL=MAX

VI = VSS to VDD

VI = VSS to VDD

VI = VSS to VDD

VO = VDD or VSS; internal pull disabled

RLOAD = 499 Ω, Video buffer disabled

RLOAD = 499 Ω, Video buffer disabled

IFS = 1.4 mA, RLOAD = 499 Ω

MIN

TYP

MAX

UNIT

2.4

 

 

V

 

 

0.6

 

 

 

-1

 

1

 

40

 

190

 

-190

 

-40

μA

 

 

-100

 

 

 

4000

 

 

±10

 

 

 

 

4

pF

 

 

4

 

 

 

 

10

 

Bits

 

1

 

LSB

 

0.5

 

LSB

0

 

0.700

V

 

1.55

 

 

 

 

 

V

 

0.470

 

 

PRODUCT PREVIEW

(1)For test conditions shown as MIN, MAX, or NOM, use the appropriate value specified in the recommended operating conditions table.

(2)These I/O specifications apply to regular 3.3 V I/Os and do not apply to DDR2/mDDR, USB I/Os. DDR2/mDDR I/Os are 1.8 V I/Os and adhere to JESD79-2A standard, USB I/Os adhere to USB2.0 spec.

(3)This specification applies only to pins with an internal pullup (PU) or pulldown (PD). See Section 2.4 or Section 2.5 for pin descriptions.

(4)To pull up a signal to the opposite supply rail, a 1 kΩ resistor is recommended.

(5)100% color bars are not supported. 100% color bars require 1.2 V peak-to-peak. The video buffer only provides 1.0 V peak-to-peak.

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Device Operating Conditions

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Texas Instruments TMS320DM355 warranty Parameter, Test Conditions, MIN TYP MAX Unit

TMS320DM355 specifications

The Texas Instruments TMS320DM355 is a versatile digital signal processor designed to support a wide array of multimedia applications, specifically in the realms of digital video and audio processing. As part of the TMS320 family of digital signal processors, the DM355 brings a blend of computational power, energy efficiency, and integrated features that make it highly effective for tasks such as video encoding, decoding, and general signal processing.

One of the standout features of the DM355 is its advanced DaVinci architecture, which is specifically optimized for multimedia tasks. This architecture integrates both DSP and application processing functionalities. The dual-core architecture includes a high-performance DSP core that specializes in real-time signal processing alongside an ARM926EJ-S RISC microprocessor, facilitating the execution of complex algorithms and control tasks.

The DM355 offers robust multimedia processing capabilities with support for several video formats, including MPEG-2, MPEG-4, H.264, and JPEG. This enables developers to create powerful video applications for a variety of devices, from industrial systems to consumer electronics. Its processing capabilities extend to audio processing, allowing it to efficiently handle audio codecs and enhance audio quality in applications ranging from IP cameras to set-top boxes.

In terms of connectivity, the TMS320DM355 supports various interfaces including USB 2.0, Ethernet, and various serial interfaces like UART, SPI, and I2C. This wide range of connectivity options ensures that the DM355 can easily interface with different peripherals and network components, making it a suitable choice for networked applications.

Energy efficiency is another significant advantage of the DM355. With a focus on low power consumption, the device is designed to operate effectively in battery-powered and heat-sensitive environments. Its low thermal design power allows for extended operational life and reduced thermal management requirements, making it ideal for portable devices.

Furthermore, the DM355 is supported by a comprehensive software development framework, including the TI Code Composer Studio and a range of middleware tools, which streamline application development and speed up time to market. Its rich ecosystem enhances its usability across different applications, ensuring that developers can leverage the full potential of the hardware.

In summary, the Texas Instruments TMS320DM355 stands out as a powerful yet cost-effective DSP solution, combining advanced multimedia processing capabilities, robust connectivity options, and energy efficiency. Its unique architecture and extensive support resources make it a preferred choice for developers seeking to create innovative multimedia solutions.