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PCM2705CDBR

Name: PCM2705CDBR
Rating: 4.7 (12 reviews)

IC AUDIO 16BIT 48K 28SSOP

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規格

Part Status	Active
Base Product Number	PCM2705
Type	Audio
Number of Channels	2
Resolution (Bits)	16 b
Sampling Rate (Per Second)	48k
Data Interface	SPI, USB
Voltage Supply Source	Analog and Digital
Voltage - Supply	3V ~ 3.6V, 5V
Operating Temperature	-25°C ~ 85°C
Mounting Type	Surface Mount
Package	28-SSOP (0.209", 5.30mm Width)
Supplier Device Package	28-SSOP
Packaging	Cut Tape (CT), Tape & Reel (TR)

概述

Description

The PCM2705CDBR is a USB audio interface device developed by Texas Instruments. It is designed to convert digital audio signals from a USB source into analog audio signals suitable for playback. This chip is particularly useful in applications where high-quality audio output is required, such as in desktop computers, laptops, and portable audio devices.
Key features of the PCM2705 include a 16-bit audio DAC (Digital-to-Analog Converter), support for sample rates up to 96 kHz, and integrated USB functionality, eliminating the need for additional components. It also supports direct connection to headphones or speakers and includes a built-in volume control feature.
The PCM2705CDBR is often used in audio projects, hobbyist applications, and commercial audio products due to its simplicity and effectiveness in delivering high-fidelity sound. Its small package size and ease of integration make it a popular choice among engineers and developers looking to enhance audio performance in USB-enabled devices.

Features

The PCM2705CDBR is a USB audio DAC (Digital-to-Analog Converter) designed for high-quality audio applications. Key features include:
1. USB 1.1 Compliance: Supports USB audio class 1.0, enabling simple integration with computers and USB devices.
2. 24-bit Resolution: Provides high audio fidelity with up to 24-bit resolution at sample rates up to 96 kHz.
3. Integrated Audio Processing: Includes a built-in volume control and headphone amplifier, eliminating the need for external components.
4. Low-Noise Performance: Offers low total harmonic distortion (THD) and noise, ensuring clear sound quality.
5. Flexible Output Options: Supports various output formats, including stereo line-level and headphone outputs.
6. Power Management: Features low-power operation modes for energy-efficient designs.
The PCM2705CDBR is ideal for portable audio applications, computer sound interfaces, and other consumer electronics requiring high-quality audio playback.

Package

The PCM2705CDBR is packaged in a 28-pin TSSOP (Thin Shrink Small Outline Package) format.

Pinout

The PCM2705CDBR is a USB audio interface chip with a total of 28 pins. It is designed for converting digital audio data from a USB connection to analog audio signals.
Key functions include:
1. USB Audio Interface: It supports USB 1.1 and handles audio data transfer.
2. DAC: Converts digital audio signals to analog.
3. Audio Outputs: Provides stereo output via DAC.
4. I²C Interface: Allows for control and configuration of the chip settings.
5. Power Management: Features for low power consumption and power management.
6. Integrated Components: Includes built-in PLL for clock generation, simplifying design.
The pin configuration includes connections for power, ground, audio outputs, USB data lines, and control interfaces, making it suitable for various audio applications in consumer electronics.

Manufacturer

The PCM2705CDBR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including analog and digital signal processing products. They are well-known for their innovations in various areas, including microcontrollers, processors, and embedded systems, catering to a wide array of industries such as automotive, communications, consumer electronics, and industrial applications. Texas Instruments is also recognized for its commitment to research and development, providing advanced solutions in the field of electronics.

Application

The PCM2705CDBR is a USB audio interface chip used in various applications such as USB sound cards, audio playback devices, and computer audio systems. It is ideal for integrating digital audio into consumer electronics, including home theater systems, portable speakers, and digital music players. The chip supports high-quality audio conversion and can also be used in DIY audio projects and embedded systems requiring USB audio connectivity.

Equivalent

Equivalent products to the PCM2705CDBR chip include the PCM1794A, PCM5102A, and WM8740. These chips provide similar audio DAC functionalities, but ensure to check specifications for compatibility with your specific application requirements. Always verify the pin configuration and supported audio formats before replacement.