®
PCM
300
3
PCM
3
PCM3002
PCM3003
002
For most current data sheet and other product
information, visit www.burr-brown.com
16-/20-Bit Single-Ended Analog Input /Output
STEREO AUDIO CODECs
TM
FEATURES
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MONOLITHIC 20-BIT
∆Σ
ADC AND DAC
16-/20-BIT INPUT/OUTPUT DATA
SOFTWARE CONTROL: PCM3002
HARDWARE CONTROL: PCM3003
STEREO ADC:
Single-Ended Voltage Input
64 X Oversampling
High Performance
THD+N: –86dB
SNR: 90dB
Dynamic Range: 90dB
STEREO DAC:
Single-Ended Voltage Output
Analog Low Pass Filter
64X Oversampling
High Performance
THD+N: –86dB
SNR: 94dB
Dynamic Range: 94dB
SPECIAL FEATURES
Digital De-emphasis
Digital Attenuation (256 Steps)
Soft Mute
Digital Loop Back
Power Down: ADC/DAC Independent
SAMPLING RATE: Up to 48kHz
SYSTEM CLOCK: 256f
S
, 384f
S
, 512f
S
SINGLE +3V POWER SUPPLY
SMALL PACKAGE: SSOP-24
Lch In
Analog Front-End
Rch In
DESCRIPTION
The PCM3002 and PCM3003 are low cost single chip
stereo audio CODECs (analog-to-digital and digital-to-
analog converters) with single-ended analog voltage
input and output.
The ADCs and DACs employ delta-sigma modulation
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. PCM3002 and PCM3003 operate with
left-justified, and right-justified formats, while the
PCM3002 also supports the I
2
S data format.
PCM3002 and PCM3003 provide a power-down mode
that operates on the ADCs and DACs independently.
Fabricated on a highly advanced CMOS process,
PCM3002 and PCM3003 are suitable for a wide vari-
ety of cost-sensitive consumer applications where good
performance is required.
PCM3002’s programmable functions are controlled
by software and the PCM3003’s functions include de-
emphasis, power down, and audio data format selec-
tions, which are controlled by hardware.
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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
Serial 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
®
© 1997 Burr-Brown Corporation
PDS-1414C
1
Printed in U.S.A.
PCM3002/3003
January, 2000
BURR-BROWN [ BURR-BROWN CORPORATION ]
