PCM63P_00 Datasheet, PDF (1/11 Pages) Texas Instruments – DIGITAL-TO-ANALOG CONVERTER

SBAS006
®
PCM63P
PCM63P
DEMO BOARD
AVAILABLE
See Appendix A
Colinear ^™ 20-Bit Monolithic Audio
DIGITAL-TO-ANALOG CONVERTER
FEATURES
DESCRIPTION
q COLINEAR 20-BIT AUDIO DAC
q NEAR-IDEAL LOW LEVEL OPERATION
q GLITCH-FREE OUTPUT
q ULTRA LOW –96dB max THD+N
(Without External Adjustment)
q 116dB SNR min (A-Weight Method)
q INDUSTRY STD SERIAL INPUT FORMAT
q FAST (200ns) CURRENT OUTPUT
(±2mA; ±2% max)
q CAPABLE OF 16x OVERSAMPLING
q COMPLETE WITH REFERENCE
The PCM63P is a precision 20-bit digital-to-analog
converter with ultra-low distortion (–96dB max with a
full scale output; PCM63P-K). Incorporated into the
PCM63P is a unique Colinear dual-DAC per channel
architecture that eliminates unwanted glitches and
other nonlinearities around bipolar zero. The PCM63P
also features a very low noise (116dB max SNR;
A-weighted method) and fast settling current output
(200ns typ, 2mA step) which is capable of 16-times
oversampling rates.
Applications include very low distortion frequency
synthesis and high-end consumer and professional
digital audio applications.
+5V
Analog
2
+5V
Digital
13
–5V
Analog
28
–5V
Digital
11
Upper Lower
B2 Adj B2 Adj
23
24
Clock 18
Latch Enable 20
Data 21
Input Shift
Register
and
Control
Logic
Upper DAC
Positive
Data Latches
Lower DAC
Negative
Data Latches
19-Bit
Upper
DAC
PCM63P
Colinear 20-Bit DAC
9 R_FEEDBACK
19-Bit
Lower
DAC
10 R_FEEDBACK
6 I_OUT
Buried
Zener
Reference
Servo
Amp
Ref
Amp
5 Bipolar Offset Current
4 Offset Decouple
3
1
25
7
12
Reference
Decouple
Servo
Decouple
Potentiometer Analog
Voltage
Common
Digital
Common
Colinear ™, Burr-Brown Corp.
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
Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
© 1990 Burr-Brown Corporation
PDS-₁1083F
®
PCM63P ^{Printed in U.S.A. January, 1998}