PRODUCT PREVIEW

TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

4.2 Recommended Operating Conditions

 

 

 

MIN

NOM

MAX

UNIT

 

CVDD

Supply voltage, Core

1.235

1.3

1.365

V

 

VDDA_PLL1

Supply voltage, PLL1

1.235

1.3

1.365

V

 

VDDA_PLL2

Supply voltage, PLL2

1.235

1.3

1.365

V

 

VDDD13_USB

Supply voltage, USB Digital

1.235

1.3

1.365

V

 

VDDA13_USB

Supply voltage, USB Analog

1.235

1.3

1.365

V

 

VDDA33_USB

Supply voltage, USB Analog

3.135

3.3

3.465

V

Supply Voltage

VDDA33_USB_PLL

Supply voltage, USB Common PLL

3.135

3.3

3.465

V

 

VDD_DDR

Supply voltage, DDR2 / MDDR

1.71

1.8

1.89

V

 

VDDA33_DDRDLL

Supply voltage, DDR DLL Analog

3.135

3.3

3.465

V

 

VDD_VIN

Supply voltage, Digital video In

3.135

3.3

3.465

V

 

VDD_VOUT

Supply voltage, Digital Video Out

3.135

3.3

3.465

V

 

VDDA18_DAC

Supply voltage, DAC Analog

1.71

1.8

1.89

V

 

VDD

Supply voltage, I/Os

3.135

3.3

3.465

V

 

VSS

Supply ground, Core, USB Digital

0

0

0

V

 

VSSA_PLL1

Supply ground, PLL1

0

0

0

V

 

VSSA_PLL2

Supply ground, PLL2

0

0

0

V

Supply Ground

VSS_USB

Supply ground, USB

0

0

0

V

VSSA_DLL

Supply ground, DLL

0

0

0

V

 

 

VSSA_DAC

Supply ground, DAC Analog

0

0

0

V

 

V

MXI1 osc ground(1)

0

0

0

V

 

SS_MX1

 

 

 

 

 

 

V

MXI2 osc ground(1)

0

0

0

V

 

SS_MX2

 

 

 

 

 

Voltage Input High

V

High-level input voltage(2)

2

 

 

V

 

IH

 

 

 

 

 

Voltage Input Low

V

Low-level input voltage(2)

 

 

0.8

V

 

IL

 

 

 

 

 

 

VREF

DAC reference voltage

 

450

 

mV

DAC(3)

RBIAS

DAC full-scale current adjust resistor

 

2550

 

Ω

RLOAD

Output resistor

 

499

 

Ω

 

 

 

 

CBG

Bypass capacitor

 

0.1

 

μF

 

ROUT

Output resistor (ROUT), between TVOUT and

 

1070

 

 

 

VFB pins

 

 

Ω

Video Buffer(3)

RFB

Feedback resistor, between VFB and IOUT pins.

 

1000

 

 

 

RBIAS

DAC full-scale current adjust resistor

 

2550

 

Ω

 

CBG

Bypass capacitor

 

0.1

 

μA

USB

USB_VBUS

USB external charge pump input

4.85

5

5.25

V

R1

USB reference resistor(4)

9.9

10

10.1

kΩ

 

Temperature

Tc

Operating case temperature rage

0

 

85

°C

(1)Oscillator ground must be kept separate from other grounds and connected directly to the crystal load capacitor ground (see Section 5.5.1).

(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)See Section 5.9.2.4. Also, resistors should be E-96 spec line (3 digits with 1% accuracy).

(4)Connect USB_R1 to VSS_USB_REF via 10K ohm, 1% resistor placed as close to the device as possible. .

92

Device Operating Conditions

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Texas Instruments TMS320DM355 warranty Recommended Operating Conditions, MIN NOM MAX Unit, Cv Dd, USB Usbvbus
Page 91 Page 93

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.
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