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Número de pieza | PCM1733 | |
Descripción | Stereo Audio DIGITAL-TO-ANALOG CONVERTER 18 Bits/ 96kHz Sampling | |
Fabricantes | Burr-Brown Corporation | |
Logotipo | ||
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PCM1733
PCM1733
TM Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
18 Bits, 96kHz Sampling
FEATURES
q COMPLETE STEREO DAC: Includes Digital
Filter and Output Amp
q DYNAMIC RANGE: 95dB
q MULTIPLE SAMPLING FREQUENCIES:
16kHz to 96kHz
q 8X OVERSAMPLING DIGITAL FILTER
q SYSTEM CLOCK: 256fS / 384fS
q NORMAL OR I2S DATA INPUT FORMATS
q SMALL 14-PIN SOIC PACKAGE
DESCRIPTION
The PCM1733 is a complete low cost stereo audio
digital-to-analog converter (DAC), operating off of a
256fS or 384fS system clock. The DAC contains a 3rd-
order ∆Σ modulator, a digital interpolation filter, and
an analog output amplifier. The PCM1733 accepts
18-bit input data in either normal or I2S formats.
The digital filter performs an 8X interpolation function
and includes de-emphasis at 44.1kHz. The PCM1733
can accept digital audio sampling frequencies from
16kHz to 96kHz, always at 8X oversampling.
The PCM1733 is ideal for low-cost, CD-quality con-
sumer audio applications.
BCKIN
LRCIN
DIN
Serial
Input
I/F
FORMAT
DM
Mode
Control
I/F
8X Oversampling
Digital Filter
Multi-level
Delta-Sigma
Modulator
DAC
Multi-level
Delta-Sigma
Modulator
DAC
Low-pass
Filter
Low-pass
Filter
256fS/384fS
SCKI
Power Supply
VCC GND
VOUTL
CAP
VOUTR
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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1998 Burr-Brown Corporation
PDS-11435A
PPCrinMted 1in7U.3S.3A. January, 1998
®
1 page TYPICAL PERFORMANCE CURVES
At TA = +25°C, +VCC = +VDD = +5V, fS = 44.1kHz, and 18-bit input data, SYSCLK = 384fS, unless otherwise noted.
DIGITAL FILTER
OVERALL FREQUENCY CHARACTERISTIC
0
–20
–40
–60
–80
–100
0 0.4536fS
1.3605fS 2.2675fS
Frequency (Hz)
3.1745fS
4.0815fS
0
–0.2
–0.4
–0.6
–0.8
–1
0
PASSBAND RIPPLE CHARACTERISTIC
0.1134fS
0.2268fS
0.3402fS
Frequency (Hz)
0.4535fS
DE-EMPHASIS FREQUENCY RESPONSE (44.1kHz)
0
–2
–4
–6
–8
–10
–12
0
5 10 15 20 25
Frequency (kHz)
DE-EMPHASIS FREQUENCY ERROR (44.1kHz)
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
0
4999.8375 9999.675 14999.5125
Frequency (kHz)
19999.35
®
5 PCM1733
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet PCM1733.PDF ] |
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