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Name: PCM2900CDB
Brand: Texas Instruments
SKU: PCM2900CDB
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 PCM2900CDB

Part No.:: PCM2900CDB

Manufacturer:: Texas Instruments

Package:: 28-SSOP (0.209, 5.30mm Width)

Datasheet:: PCM2900CDB.pdf

Description:: IC STEREO AUD CODEC W/USB 28SSOP

In Stock:: 2769

Quantity:: Add To Cart

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PCM2900CDB Specifications

Package/Case:
28-SSOP (0.209, 5.30mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Active
Type:
Stereo Audio
DataInterface:
USB
Resolution(Bits):
16 b
NumberofADCs/DACs:
2 / 2
SigmaDelta:
Yes
S/NRatioADCs/DACs(db)Typ:
89 / 96
DynamicRangeADCs/DACs(db)Typ:
89 / 93
Voltage-SupplyAnalog:
3.1V ~ 3.5V
Voltage-SupplyDigital:
3.1V ~ 3.5V
OperatingTemperature:
-25°C ~ 85°C
MountingType:
Surface Mount

PCM2900CDB this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCM2900CDB 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 PCM2900CDB 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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PCM2900CDB information

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PCM2900CDB Typical application Circuitry

PCM2900CDB

The PCM2900CDB is a versatile, high-quality, USB audio codec integrated circuit (IC) that provides a bridge between analog audio signals and digital audio data through a USB interface.

Application Scenario: USB-Powered Microphone

Integrating the PCM2900CDB into a USB-powered microphone system demonstrates its capability to efficiently convert analog microphone signals into digital format for recording or streaming purposes.

Microphone Input Connection

- Analog Microphone Interface: To utilize the PCM2900CDB in this application, first connect the analog microphone's output to the analog input pins of the PCM2900CDB (AINL and AINR for stereo input, though a mono microphone might use only one channel). It's crucial to include series capacitors to block DC offsets and use bias resistors if the microphone requires biasing, ensuring proper signal conditioning before ADC conversion.

Power Supply and Grounding

- USB Power Utilization: The PCM2900CDB operates directly from USB power (5V), supplied through the VBUS pin. Decoupling capacitors should be placed close to the VBUS pin to filter noise from the USB power line. A solid ground plane is essential for minimizing noise and ensuring the integrity of both analog and digital signals.

USB Interface Configuration

- USB Connection to Host: The USB D+ and D- pins of the PCM2900CDB should be connected directly to the corresponding D+ and D- pins of the USB connector, with a 1.5kΩ pull-up resistor on the D+ line to indicate a Full Speed USB device to the host. Proper impedance matching and trace routing are critical for the USB signal integrity.

Digital Audio Output

- Audio Data Transfer: The PCM2900CDB seamlessly interfaces with a computer or USB host device, transferring digital audio data through the USB connection. No external DAC is needed for playback from the computer, as the PCM2900CDB includes its own DAC for monitoring or playback purposes.

Design Considerations with PCM2900CDB

Designing a circuit with the PCM2900CDB requires careful consideration of several factors:

- Signal Integrity for Analog Inputs: It's important to maintain a clean and short path for analog signals to the ADC inputs, minimizing noise and interference from digital circuits or USB power lines.

- USB Compliance and Electromagnetic Compatibility (EMC): Ensuring the design meets USB specifications for impedance and also addresses EMC concerns with appropriate filtering and shielding techniques.

- Power Supply Decoupling: Adequate decoupling and filtering of the power supply lines are essential to reduce noise on the analog and digital supply rails, enhancing the audio quality.

- PCB Layout Considerations: A thoughtful PCB layout that separates analog and digital sections, uses ground planes effectively, and minimizes the loop area for critical signals can significantly improve performance.

- Firmware and Configuration: While the PCM2900CDB is designed for plug-and-play operation, understanding the available configuration options and any software or firmware implications for the specific use case can optimize performance.

By integrating the PCM2900CDB into a USB-powered microphone system, developers can create a compact, efficient solution for converting analog microphone signals to digital audio data, leveraging the PCM2900CDB's integrated ADC, USB interface, and audio playback capabilities. The PCM2900CDB offers a streamlined, high-quality audio codec solution for a wide range of USB audio applications.

PCM2900CDB FAQ

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3. Are the PCM2900CDB price and inventory displayed accurate?

The price and inventory of PCM2900CDB 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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6. What is the process for return or replacement of PCM2900CDB?

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 PCM2900CDB we delivered, we will accept the replacement or return of the PCM2900CDB 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 PCM2900CDB.

(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