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Name: DAC904EVM
Brand: Texas Instruments
SKU: DAC904EVM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments DAC904EVM

Part No.:: DAC904EVM

Manufacturer:: Texas Instruments

Package:

Datasheet:: DAC904EVM.pdf

Description:: EVAL BOARD FOR DAC904

In Stock:: 2428

Quantity:: Add To Cart

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DAC904EVM Specifications

Packaging:
Bulk
Series:
-
ProductStatus:
Active
NumberofDAC's:
1
NumberofBits:
14
SamplingRate(PerSecond):
165M
DataInterface:
CMOS
SettlingTime:
30 ns
DACType:
Current
SuppliedContents:
Board(s)

DAC904EVM this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including DAC904EVM price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for DAC904EVM to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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DAC904EVM information

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DAC904EVM Typical application Circuitry

DAC904EVM

The DAC904EVM is not a chip but an Evaluation Module (EVM) for the DAC904, a high-speed, 14-bit digital-to-analog converter (DAC) developed by Texas Instruments. The DAC904 is designed for the high-speed conversion of digital signals to analog, featuring a wide bandwidth and high data rate capability that makes it suitable for applications such as direct digital synthesis (DDS), waveform generation, and communication system components like modulators and signal reconstruction filters.

Key Features and Specifications of the DAC904:

- 14-Bit Resolution: Provides high precision in the analog output, allowing for detailed and nuanced signal generation.

- High-Speed Interface: Supports data rates up to 165 MSPS (Mega Samples Per Second), facilitating its use in high-frequency signal generation.

- Single 5V Power Supply: Simplifies power supply design by operating efficiently on a standard 5V source.

- Differential Current Output: Offers a differential current output, which can be easily converted to a voltage signal with an external operational amplifier (op-amp) or transformer, enhancing signal quality and reducing noise.

- Low Power Consumption: Designed for efficiency, making it suitable for applications where power efficiency is a concern.

Application Scenario: An exemplary application of the DAC904 (and thereby the DAC904EVM for testing and development purposes) is in a Direct Digital Synthesis (DDS) system for generating arbitrary waveforms in a signal generator.

Circuit Design Explanation:

1. Digital Data Inputs (DB0-DB13, Pins 3-16): These pins accept the 14-bit digital input data. In a DDS application, the digital waveform data is supplied to these pins from a microcontroller or FPGA (Field-Programmable Gate Array).

2. Clock Input (CLK, Pin 2): The clock input pin where the DAC904 receives its sampling clock, which controls the rate at which the DAC converts digital data to analog. For high precision in waveform generation, a stable and accurate clock source is connected to this pin.

3. Differential Current Outputs (IOUT and IOUTB, Pins 18 and 17 respectively): The DAC904 outputs the analog signal in the form of a differential current from these pins. Connecting these outputs to an external differential to single-ended converter or directly to a differential amplifier can provide the desired analog voltage waveform.

4. Reference Voltage Input (REFLO and REFHI, Pins 1 and 24): REFLO is typically connected to ground, and REFHI is connected to a stable reference voltage source. The difference between REFHI and REFLO sets the full-scale output current of the DAC904.

5. Power Supply and Grounding (AVDD, Pin 23; DGND, Pin 22; AGND, Pins 19, 20): AVDD is connected to a +5V power supply, while DGND and AGND (Digital Ground and Analog Ground) should be connected to the system ground. Proper decoupling between AVDD and AGND is crucial to minimize noise.

Design Considerations:

- Signal Integrity: Ensuring minimal noise and distortion in the digital signals supplied to the DAC904EVM is critical, requiring careful PCB layout and grounding practices.

- Power Supply Decoupling: Employing decoupling capacitors close to the AVDD and ground pins is essential to reduce noise in the power supply.

- Clock Stability: The quality of the DAC904's output signal heavily relies on the stability and purity of the clock signal. Utilizing a low-jitter clock source is recommended.

- Output Filtering: To remove high-frequency components from the DAC's output, implementing a low-pass filter at the output can improve signal quality, especially important in DDS applications for generating clean waveforms.

- Thermal Management: Even though the DAC904 is designed for low power consumption, managing heat in high-speed or continuous operation scenarios ensures stable performance.

Leveraging the DAC904EVM in a DDS system for waveform generation showcases the DAC904's ability to produce precise and high-quality analog signals from digital data, underlining its suitability for advanced electronic systems requiring high-speed DAC capabilities.

DAC904EVM FAQ

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2. How does icwhale.com guarantee that DAC904EVM is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the DAC904EVM. All suppliers must pass our qualification reviews before they can publish their products including DAC904EVM on icwhale.com; we pay more attention to the channels and quality of DAC904EVM products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the DAC904EVM price and inventory displayed accurate?

The price and inventory of DAC904EVM fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

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5. How is the shipping arranged?

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Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of DAC904EVM?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the DAC904EVM we delivered, we will accept the replacement or return of the DAC904EVM only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of DAC904EVM.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations