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PCM3000/PCM3001 Datasheet

  • PCM3000/PCM3001

  • PCM3000. PCM3001 - Sound Plus Stereo Audio CODEC 18-BITS. SE...

  • 335.94KB

  • 20頁

  • ETC

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廬
49%
PCM
FPO
3001E
PCM
300
0E
PCM3000
PCM3001
Stereo Audio CODEC
18-BITS, SERIAL INTERFACE
TM
FEATURES
q
MONOLITHIC 18-BIT
鈭單?/div>
ADC AND DAC
q
16- OR 18-BIT INPUT/OUTPUT DATA
q
STEREO ADC:
Single-ended Voltage Input
64X Oversampling
High Performance:
鈥?8dB
THD+N
94dB
SNR
94dB
Dynamic Range
Digital High-Pass Filter
q
STEREO DAC:
Single-ended Voltage Output
Analog Low Pass Filter
8X Oversampling Digital Filter
High Performance:
鈥?0dB
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: 28-Pin SSOP
Lch In
Analog Front-End
Rch In
Delta-Sigma
Modulator
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. PCM3000/3001 operates with left-justi-
fied, right-justified, I
2
S or DSP data formats.
PCM3000 can be bit-mapped 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 0.6碌 CMOS process,
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.
Digital Out
Decimation
Digital Filter
Serial Interface
and
Mode Control
Low Pass Filter
and
Output Buffer
Multi-Level
Delta-Sigma
Modulator
Oversampling
Interpolation
Digital Filter
Mode Control
System Clock
Digital In
Lch Out
Rch Out
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 1996 Burr-Brown Corporation
PDS-1342D
Printed in U.S.A., August, 1998

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