16-Bit Stereo

DIGITAL-TO-ANALOG CONVERTER

with

Interface

FEATURES

q INTEGRATED USB INTERFACE:

Full-Speed Transceiver Supports 12Mbps

Data Transfer

Fully Compliant with the USB 1.0 Specifi-

cation

Adaptive Mode for Isochronous Transfer

Self-Powered Device

q ACCEPTS 16-BIT STEREO AND MONO USB

AUDIO DATA STREAMS

q ANALOG PERFORMANCE (V

Dynamic Range: 100dB (typ at 16-bit)

SNR: 105dB (typ)

THD+N: 0.002% (typ at 16-bit)

q 8X OVERSAMPLING DIGITAL FILTER:

Passband Ripple:

Stopband Attenuation: –82dB

q SAMPLING RATE (F

q ON-CHIP CLOCK GENERATOR

WITH SINGLE 12MHz CLOCK SOURCE

q MULTI-FUNCTIONS:

Digital Attenuator: 0dB to –64dB, 1dB/step

Soft Mute

Zero Flag

Suspend Flag

Playback Flag

q DUAL POWER SUPPLIES:

+5V for Analog Portion

+3.3V for Digital Portion

q PACKAGE: SSOP-28

DESCRIPTION

The PCM2702 is a single chip digital-to-analog converter

offering two D/A output channels and an integrated USB 1.0

compliant interface controller. The newly developed SpAct™

(Sampling Period Adaptive Controlled Tracking) system re-

covers a stable, low-jitter clock for internal PLL and DAC

operation from the USB interface audio data.

The PCM2702 is based upon Texas Instruments Enhanced

Multi-level Delta-Sigma Modulator, an 8x oversampling digi-

tal interpolation filter, and an analog output low-pass filter.

The PCM2702 can accept a 48kHz, 44.1kHz and 32kHz

sampling rates, using either 16-bit stereo or monaural audio

data. Digital attenuation and soft-mute features are included,

and are controlled via USB audio class request.

Patents Pending.

SpAct™ is a trademark of Texas Instruments.

PCM2702

PCM2702

SBAS142A – MAY 2000 – REVISED NOVEMBER 2007

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 2000-2007, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

APPLICATIONS

q STAND-ALONE USB AUDIO SPEAKERS

q CRT/LCD INTEGRATED USB AUDIO SPEAKERS

q USB AUDIO AMPLIFIERS

q OTHER USB AUDIO APPLICATIONS