®
PCM
PCM
49%
3001
E
FPO
300
0
E
PCM3000
PCM3001
For most current data sheet and other product
information, visit www.burr-brown.com
Stereo Audio CODEC
18-BITS, SERIAL INTERFACE
TM
FEATURES
q
MONOLITHIC 18-BIT
∆Σ
ADC AND DAC
q
16- OR 18-BIT INPUT/OUTPUT DATA
q
STEREO ADC:
Single-ended Voltage Input
64X Oversampling
High Performance:
–88dB
THD+N
94dB
SNR
94dB
Dynamic Range
Digital High-Pass Filter
q
STEREO DAC:
Single-ended Voltage Output
Analog Low Pass Filter
64X Oversampling
High Performance:
–90dB
THD+N
98dB
SNR
97dB
Dynamic Range
q
SPECIAL FEATURES (PCM3000):
Digital De-emphasis
Digital Attenuation (256 Steps)
Soft Mute
Analog Loop Back
q
SAMPLE RATE: Up to 48kHz
q
SYSTEM CLOCK: 256f
S
, 384f
S
, 512f
S
q
SINGLE +5V POWER SUPPLY
q
SMALL PACKAGE: SSOP-28
Lch In
Analog Front-End
Rch In
DESCRIPTION
The PCM3000/3001 is a low cost single chip stereo
audio CODEC (analog-to-digital and digital-to-analog
converter) 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 digital attenuation, de-emphasis, infinite
zero detection and soft mute to form a complete
subsystem. The PCM3000/3001 operates with left-
justified, right-justified, I
2
S or DSP data formats.
PCM3000 can be programmed with a 3-wire serial
interface for special features and data formats.
PCM3001 can be pin-programmed for data formats.
Fabricated on a highly advanced CMOS process, the
PCM3000/3001 is suitable for a wide variety of cost-
sensitive consumer applications where good perfor-
mance is required. Applications include sampling key-
boards, digital mixers, mini-disc recorders, hard-disk
recorders, karaoke systems, DSP-based car stereo,
DAT recorders, and video conferencing.
Delta-Sigma
Modulator
Digital
Decimation
Filter
Serial Interface
and
Mode Control
Digital Out
Digital In
Lch Out
Rch Out
Low Pass Filter
and
Output Buffer
Multi-Level
Delta-Sigma
Modulator
Digital
Interpolation
Filter
Mode Control
System Clock
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
© 1996 Burr-Brown Corporation
PDS-1342E
1
PCM3000/3001
Printed in U.S.A., January, 2000
BURR-BROWN [ BURR-BROWN CORPORATION ]
