PCM1702P_07 Datasheet, PDF (1/13 Pages) Burr-Brown (TI) – BiCMOS Advanced Sign Magnitude 20-Bit DIGITAL-TO-ANALOG CONVERTER

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49%
FPO
PCM1702P
PCM1702U
BiCMOS Advanced Sign Magnitude 20-Bit
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q ULTRA LOW –96dB max THD+N
(No External Adjustment Required)
q NEAR-IDEAL LOW LEVEL OPERATION
q GLITCH-FREE OUTPUT
q 120dB SNR TYP (A-Weight Method)
q INDUSTRY STD SERIAL INPUT FORMAT
q FAST (200ns) CURRENT OUTPUT
(±1.2mA)
q CAPABLE OF 16X OVERSAMPLING
q COMPLETE WITH REFERENCE
q LOW POWER (150mW typ)
DESCRIPTION
The PCM1702 is a precision 20-bit digital-to-analog
converter with ultra-low distortion (–96dB typ with a
full scale output). Incorporated into the PCM1702 is
an advanced sign magnitude architecture that elimi-
nates unwanted glitches and other nonlinearities around
bipolar zero. The PCM1702 also features a very low
noise (120dB typ SNR: A-weighted method) and fast
settling current output (200ns typ, 1.2mA step) which
is capable of 16X oversampling rates.
Applications include very low distortion frequency
synthesis and high-end consumer and professional
digital audio applications.
Clock
Data
LE
Input Shift Register
and Control Logic
Balanced Current
Segment DAC A
DCOM
ACOM
Balanced Current
Segment DAC B
I_OUT
+V_CC
Reference
–V_CC
and
Servo
Bipolar Offset
RF DC SERV DC
BPO DC
SBAS026
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]
© 1993 Burr-Brown Corporation
PDS-1175B
1
Printed in U.S.A. June, 1995
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PCM1702