PCM2705DBR - Texas Instruments

Manufacturer Part Number

PCM2705DBR

Manufacturer

Texas Instruments

Introduction

The PCM2705DBR is an integrated circuit from Texas Instruments, designed for audio digital-to-analog conversion with a USB interface.

Product Features and Performance

USB interface with full-speed operation

On-chip USB interface, no external USB interface IC required

SpAct architecture for sound quality enhancements

S/N Ratio: 98 dB

THD+N: 0.006%

16-bit resolution

Supports 32 kHz, 44.1 kHz, and 48 kHz sampling rates

Internal voltage regulator

Bus-powered or self-powered operation

Product Advantages

Integrated USB protocol handling

No external drivers required for default USB audio operation

Good audio quality with high S/N ratio and low distortion

Small 28-SSOP surface mount package saves PCB space

Simultaneous operation of SPI and USB data interface

Key Technical Parameters

Number of Channels: 2 (Stereo)

Resolution (Bits): 16-bit

Sampling Rate (Per Second): 48k

Data Interface: SPI, USB

Voltage Supply Source: Analog and Digital

Voltage - Supply: 3V to 3.6V or 5V

Operating Temperature: -25°C to 85°C

Mounting Type: Surface Mount

Package / Case: 28-SSOP

Quality and Safety Features

Built-in power-on reset circuit

High-quality audio output with low noise

Compatibility

Compatible with USB 1.1

Can be used for bus-powered or self-powered USB audio systems

Application Areas

USB-based audio playback systems

Computer audio systems

USB headphones

USB speakers

Musical instruments with USB interface

Product Lifecycle

Not For New Designs (it may be facing discontinuation, check for availability of replacements or upgrades)

Several Key Reasons to Choose This Product

Simplified implementation of USB audio systems

Does not require complex external components

Versatility in power supply options

Suitable for various consumer electronic audio applications

Established performance record from Texas Instruments