®
49%
PCM
1801
FPO
PCM1801
For most current data sheet and other product
information, visit www.burr-brown.com
16-Bit, Stereo, Audio
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q
DUAL 16-BIT MONOLITHIC
∆Σ
ADC
q
SINGLE-ENDED VOLTAGE INPUT
q
64X OVERSAMPLING DECIMATION FILTER:
Passband Ripple:
±
0.05dB
Stopband Attenuation: –65dB
q
ANALOG PERFORMANCE:
THD+N: –88dB (typ)
SNR: 93dB (typ)
Dynamic Range: 93dB (typ)
Internal High-Pass Filter
q
PCM AUDIO INTERFACE: Left Justified,
I
2
S
q
SAMPLING RATE: 4kHz to 48kHz
q
SYSTEM CLOCK: 256f
S
, 384f
S
, or 512f
S
q
SINGLE +5V POWER SUPPLY
q
SMALL SO-14 PACKAGE
PCM1801
(+)
(–)
DESCRIPTION
PCM1801 is a low cost, single chip stereo analog-to-
digital converter with single-ended analog voltage
inputs. The PCM1801 uses a delta-sigma modulator
with 64x oversampling, a digital decimation filter, and
a serial interface which supports Slave mode operation
and two data formats. The PCM1801 is suitable for a
wide variety of cost-sensitive consumer applications
where good performance is required.
V
IN
L
Single-Ended-
to-Differential
Converter
5th-Order
∆Σ
Modulator
x1/64
Decimation
and
High-Pass Filter
Serial Data
Interface
BCK
V
REF
1
Reference
V
REF
2
LRCK
V
IN
R
Single-Ended-
to-Differential
Converter
(–)
(+)
5th-Order
∆Σ
Modulator
DOUT
Format
Control
FMT
BYPAS
Clock/Timing Control
SCKI
Power Supply
V
CC
AGND
DGND
V
DD
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1999 Burr-Brown Corporation
PDS-1554B
Printed in U.S.A. May, 2000