®

1

PCM3006

FEATURES

q MONOLITHIC 16-BIT

∆Σ ADC AND DAC

q STEREO ADC:

Single-Ended Voltage Input

64 X Oversampling

High Performance

THD+N: –84dB

SNR: 89dB

Dynamic Range: 89dB

Digital High Pass Filter

q STEREO DAC:

Single-Ended Voltage Output

Analog Low Pass Filter

8X Oversampling Digital Filter

High Performance

THD+N: –85dB

SNR: 93dB

Dynamic Range: 93dB

q SPECIAL FEATURES

Digital De-emphasis

Power Down: ADC/DAC Independent

q SAMPLING RATE: Up to 48kHz

q SYSTEM CLOCK: 256f

q SINGLE +3V POWER SUPPLY

q SMALL PACKAGE: 24-Lead TSSOP

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

DESCRIPTION

The PCM3006 is a low cost single chip stereo audio

CODEC (analog-to-digital and digital-to-analog con-

verters) with single-ended analog voltage input and

output.

Both ADCs and DACs employ delta-sigma modula-

tion with 64X oversampling. The ADCs include a

digital decimation filter, and the DACs include an 8X

oversampling digital interpolation filter. The DACs

also include a de-emphasis function. PCM3006 oper-

ates with 16-bit, left-justified for ADC, right-justified

for DAC data formats.

PCM3006 provides a Power-Down Mode that oper-

ates on the ADCs and DACs independently.

Fabricated on a highly advanced 0.6

µs CMOS pro-

cess, PCM3006 is suitable for a wide variety of

cost-sensitive consumer applications where good

performance is required. Applications include sam-

pling keyboards, digital mixers, effects processors,

hard-disk recorders, data recorders and digital video

cameras.

© 1998 Burr-Brown Corporation

PDS-1436A

Printed in U.S.A. February, 1998

PCM3006

®

16-Bit, Single-Ended Analog Input/Output

STEREO AUDIO CODEC

TM

Lch In

Rch In

Analog Front-End

Delta-Sigma

Modulator

Decimation

Digital Filter

Serial Interface

and

Mode Control

Digital Out

Digital In

Parallel Mode Control

System Clock

Lch Out

Rch Out

Low Pass Filter

and

Output Buffer

Multi-Level

Delta-Sigma

Modulator

Oversampling

Interpolation

Digital Filter

PCM3006