廬
49%
FPO
PCM1715U
Dual Voltage Output CMOS Delta-Sigma
DIGITAL-TO-ANALOG CONVERTER
With On-Chip Digital Filter
FEATURES
q
DUAL MULTI-LEVEL NOISE SHAPING
DAC WITH ON-CHIP DIGITAL FILTER
q
HIGH PERFORMANCE:
THD+N: 0.0025% (鈥?2dB) typ
Dynamic Range: 98dB typ
S/N RATIO: 110dB typ
q
ANALOG VOLTAGE OUTPUT:
V
O
= 3.2Vp-p
q
ON-CHIP ANALOG LOW PASS FILTER
q
JITTER TOUGH AND LOW RADIO
FREQUENCY INTERFERENCE ENERGY
ARCHITECTURE
q
SYSTEM CLOCK 256fs or 384fs
q
ON-CHIP 8X OVERSAMPLING DIGITAL
FILTER WITH:
Lch/Rch Individual Attentuator
Control
Digital De-Emphasis (44.1kHz)
Analog Output Mode Select
q
SINGLE +5V POWER SUPPLY
OPERATION
q
SMALL 28-PIN SOIC PACKAGE
Lch/Rch ATT Control
DESCRIPTION
The PCM1715 is a low cost, dual voltage output
CMOS digital-to-analog converter. Incorporated into
the PCM1715 is a unique multi-level 4th-order delta-
sigma architecture that eliminates influence from in-
put clock jitter and RF interferance resulting in truly
superior performance.
The PCM1715 has individual channel attenuator and
analog output mode select function which is suitable
for CD-ROM application.
The on-chip digital filter of the PCM1715 has 鈥?2dB
stop band attenuation and
鹵0.008dB
ripple in the pass
band.
The PCM1715 can be used in a wide variety of
consumer audio applications. Its low cost, small size,
and single +5V operation make it ideal for portable,
automotive, CD players, CD-I, CD-ROM, VIDEO-
CD, tuners, music instruments, and other digital audio
applications.
Digital In
Input Interface
and
Attentuator
Oversampling
Digital Filter
4th-Order
Multi-Level
Delta-
Sigma
Lch OUT
DAC
Low-Pass
Filter
Output
Op Amp
Rch OUT
Mode Control
System Clock
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400
Tel: (602) 746-1111 鈥?Twx: 910-952-1111 鈥?Cable: BBRCORP 鈥?/div>
鈥?Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd. 鈥?Tucson, AZ 85706
Telex: 066-6491 鈥?FAX: (602) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏 1994 Burr-Brown Corporation
PDS-1247
Printed in U.S.A. July, 1994
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