®
PCM
49%
180
FPO
0
PCM1800
Single-Ended Analog Input 20-Bit Stereo
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q
DUAL 20-BIT MONOLITHIC
∆Σ
ADC
q
SINGLE-ENDED VOLTAGE INPUT
q
64X OVERSAMPLING DECIMATION FILTER:
Passband Ripple:
±
0.05dB
Stopband Attenuation: –65dB
q
HIGH PERFORMANCE:
THD+N: -88dB (typ)
SNR: 95dB (typ)
Dynamic Range: 95dB (typ)
Internal High Pass Filter
q
PCM AUDIO INTERFACE:
Master/Slave Modes
4 Data Formats
q
SAMPLING RATE: 32kHz, 44.1kHz, 48kHz
q
SYSTEM CLOCK: 256f
S
, 384f
S
, or 512f
S
q
SINGLE +5V POWER SUPPLY
q
SMALL 24-PIN SSOP PACKAGE
DESCRIPTION
PCM1800 is a low cost, single chip stereo analog-to-
digital converter with single-ended analog voltage
inputs. The PCM1800 uses a delta-sigma modulator
with 64X oversampling, including a digital decima-
tion filter and serial interface which supports both
Master and Slave Modes and four data formats.
PCM1800 is suitable for a wide variety of cost-sensi-
tive consumer applications where high performance is
required.
PCM1800 is fabricated on a highly advanced CMOS
process.
Analog Input (L)
Analog Front-End
Analog Input (R)
Delta-Sigma
Modulator
Digital Output
Decimation
Digital
Filter
Serial Interface
and
Format Control
Mode/Format Control
System Clock
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
®
© 1997 Burr-Brown Corporation
PDS-1387
1
Printed in U.S.A.
PCM1800
August, 1997
BURR-BROWN [ BURR-BROWN CORPORATION ]
