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PCM3002/PCM3003 Datasheet

  • PCM3002/PCM3003

  • PCM3002. PCM3003 - 16-/20-Bit Single-Ended Analog Input/Outp...

  • 23頁

  • ETC

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廬
PCM
300
3
PCM
3
PCM3002
PCM3003
002
16-/20-Bit Single-Ended Analog Input/Output
STEREO AUDIO CODECs
TM
FEATURES
q
q
q
q
q
MONOLITHIC 20-BIT
鈭單?/div>
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: 鈥?6dB
SNR: 90dB
Dynamic Range: 90dB
STEREO DAC:
Single-Ended Voltage Output
Analog Low Pass Filter
8X Oversampling Digital Filter
High Performance
THD+N: 鈥?6dB
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: 24-Lead SSOP
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, right-justified, or I
2
S data formats.
PCM3002 and PCM3003 provide a power-down mode
that operates on the ADCs and DACs independently.
Fabricated on a highly advanced 0.6碌s CMOS pro-
cess, PCM3002 and PCM3003 are suitable for a wide
variety of cost-sensitive consumer applications where
good performance is required.
PCM3002鈥檚 multi-functions are controlled by soft-
ware and the PCM3003鈥檚 functions include de-empha-
sis, power down, and audio data format selections,
which are controlled by hardware.
q
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q
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Delta-Sigma
Modulator
Decimation
Digital 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
Oversampling
Interpolation
Digital Filter
Serial Mode Control
System Clock
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏 1997 Burr-Brown Corporation
PDS-1414B
Printed in U.S.A. August, 1998

PCM3002/PCM3003相關(guān)型號PDF文件下載

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