PCM3003 Datasheet, PDF (1/23 Pages) Burr-Brown (TI) – 16-/20-Bit Single-Ended Analog Input/Output STEREO AUDIO CODECs

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PCM3003
PCM3002
PCM3002
PCM3003
For most current data sheet and other product
information, visit www.burr-brown.com
16-/20-Bit Single-Ended Analog Input /Output
TM _{STEREO AUDIO CODECs}
FEATURES
q MONOLITHIC 20-BIT ∆Σ ADC AND DAC
q 16-/20-BIT INPUT/OUTPUT DATA
q SOFTWARE CONTROL: PCM3002
q HARDWARE CONTROL: PCM3003
q STEREO ADC:
Single-Ended Voltage Input
64 X Oversampling
High Performance
THD+N: –86dB
SNR: 90dB
Dynamic Range: 90dB
q STEREO DAC:
Single-Ended Voltage Output
Analog Low Pass Filter
64X Oversampling
High Performance
THD+N: –86dB
SNR: 94dB
Dynamic Range: 94dB
q SPECIAL FEATURES
Digital De-emphasis
Digital Attenuation (256 Steps)
Soft Mute
Digital Loop Back
Power Down: ADC/DAC Independent
q SAMPLING RATE: Up to 48kHz
q SYSTEM CLOCK: 256f_S, 384f_S, 512f_S
q SINGLE +3V POWER SUPPLY
q SMALL PACKAGE: SSOP-24
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 I²S 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.
Lch In
Rch In
Analog Front-End
Lch Out
Rch Out
Low Pass Filter
and
Output Buffer
Delta-Sigma
Modulator
Multi-Level
Delta-Sigma
Modulator
Digital
Decimation
Filter
Digital
Interpolation
Filter
Serial Interface
and
Mode Control
Digital Out
Digital In
Serial Mode Control
System Clock
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© 1997 Burr-Brown Corporation
PDS-₁1414C
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