PCM78P Datasheet, PDF (1/16 Pages) Burr-Brown (TI) – 16-Bit Audio ANALOG-TO-DIGITAL CONVERTER

®
PCM78P
16-Bit Audio
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q LOW COST/HIGH PERFORMANCE 16-BIT
AUDIO A/D CONVERTER
q FAST 5µs MAX CONVERSION TIME
(4µs typ)
q VERY LOW THD+N ( typ –88dB at FS;
max –82dB)
q ±3V INPUT RANGE
q TWO SERIAL OUTPUT MODES PROVIDE
VERSATILE INTERFACING
q COMPLETE WITH INTERNAL REFERENCE
AND CLOCK IN 28-PIN PLASTIC DIP
q ±5V TO ±15V SUPPLY RANGE (600mW
Power Dissipation)
APPLICATIONS
q DSP DATA ACQUISITION
q TEST INSTRUMENTATION
q SAMPLING KEYBOARD SYNTHESIZERS
q DIGITAL AUDIO TAPE
q BROADCAST AUDIO PROCESSING
q TELECOMMUNICATIONS
DESCRIPTION
The PCM78P is a low-cost 16-bit analog-to-digital
converter which is specifically designed and tested for
dynamic applications. It features very fast, low
distortion performance (4µs/–88dB THD+N typical)
and is complete with internal clock and reference
circuitry. The PCM78P is packaged in a reliable, low-
cost 28-pin plastic DIP and data output is available in
user-selectable serial output formats. The PCM78P is
ideal for digital audio tape (DAT) recorders. Many
similar applications such as digital signal processing
and telecom applications are equally well served by
the PCM78P.
The PCM78P uses a SAR technique. Analog and
digital portions are efficiently partitioned into a high-
speed, bipolar section and a low-power CMOS
section. The PCM78P has been optimized for excel-
lent dynamic performance and low cost.
Audio Input
16-bit D/A
Converter
–
Comp
+
Convert
Command
16-bit SAR +
Timing Control
Internal
Clock
Circuit
External Clock
Status
Serial Output 1
Serial Output 2
Clock Output
International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Tel: [phone] • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1989 Burr-Brown Corporation}
PDS-989A
Printed in U.S.A. October, 1993