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Burr-Brown Corporation

PCM1744 Datasheet Preview

PCM1744 Datasheet

24 Bits/ 96kHz/ Sampling Stereo Audio DIGITAL-TO-ANALOG CONVERTER

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® PCM1744
PCM1744
For most current data sheet and other product
information, visit www.burr-brown.com
TM 24 Bits, 96kHz,
Sampling Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q COMPLETE STEREO DAC: Includes Digital
Filter and Output Amp
q DYNAMIC RANGE: 95dB
q MULTIPLE SAMPLING FREQUENCIES:
Up to 96kHz
q 8x OVERSAMPLING DIGITAL FILTER
q SYSTEM CLOCK: 256fS / 384fS
q 24-BIT I2S DATA INPUT FORMAT
q SMALL 14-PIN SOIC PACKAGE
DESCRIPTION
The PCM1744 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 PCM1744 accepts
24-bit input data in a I2S format.
The digital filter performs an 8x interpolation function
and includes de-emphasis at 44.1kHz. The PCM1744
can accept digital audio sampling frequencies from
16kHz to 96kHz, always at 8X oversampling.
The PCM1744 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
© 1999 Burr-Brown Corporation
PDS-11553A
PCM1744Printed in U.S.A. September, 1999
®




Burr-Brown Corporation

PCM1744 Datasheet Preview

PCM1744 Datasheet

24 Bits/ 96kHz/ Sampling Stereo Audio DIGITAL-TO-ANALOG CONVERTER

No Preview Available !

SPECIFICATIONS
All specifications at +25°C, +VCC = +5V, fS = 44.1kHz, and 18-bit input data, SYSCLK = 384fS, unless otherwise noted.
PCM1744
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RESOLUTION
DATA FORMAT
Audio Data Interface Format
Audio Data Format
Sampling Frequency (fS)
Internal System Clock Frequency
DIGITAL INPUT/OUTPUT
Logic Level
Input Logic Level
VIH(1)
VIL(1)
Input Logic Current: IIN(1)
DYNAMIC PERFORMANCE(2)
THD+N at FS (0dB)
THD+N at –60dB
Dynamic Range
Signal-to-Noise Ratio
Channel Separation
DC ACCURACY
Gain Error
Gain Mismatch, Channel-to-Channel
Bipolar Zero Error
f = 991kHz
EIAJ, A-weighted
EIAJ, A-weighted
VOUT = VCC/2 at BPZ
24
I2S
Two’s Binary Complement
16 96
256fS /384fS
TTL
2.0
0.8
±0.8
–83 –79
–32
90 95
90 97
88 95
±1.0 ±10.0
±1.0 ±5.0
±20 ±50
Bits
kHz
VDC
VDC
µA
dB
dB
dB
dB
dB
% of FSR
% of FSR
mV
ANALOG OUTPUT
Output Voltage
Center Voltage
Load Impedance
DIGITAL FILTER PERFORMANCE
Passband
Stopband
Passband Ripple
Stopband Attenuation
Delay Time
INTERNAL ANALOG FILTER
–3dB Bandwidth
Passband Response
POWER SUPPLY REQUIREMENTS
Voltage Range
Supply Current
Power Dissipation
TEMPERATURE RANGE
Operation
Storage
Full Scale (0dB)
AC Load
f = 20kHz
10
0.555
–35
4.5
–25
–55
0.62 x VCC
VCC/2
11.125/fS
100
–0.16
5
13
65
0.445
±0.17
5.5
18
90
+85
+125
Vp-p
VDC
k
fS
fS
dB
dB
sec
kHz
dB
VDC
mA
mW
°C
°C
NOTES: (1) Pins 1, 2, 3, 12, 13, 14: LRCIN, DIN, BCKIN, DM, FORMAT, SCKI. (2) Dynamic performance specs are tested with 20kHz low pass filter and THD+N
specs are tested with 30kHz LPF, 400Hz HPF, Average-Mode.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
PCM1744
2


Part Number PCM1744
Description 24 Bits/ 96kHz/ Sampling Stereo Audio DIGITAL-TO-ANALOG CONVERTER
Maker Burr-Brown Corporation
Total Page 9 Pages
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