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Burr-Brown Corporation

PCM1702U Datasheet Preview

PCM1702U Datasheet

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
DCOM
ACOM
+VCC
–VCC
Input Shift Register
and Control Logic
Reference
and
Servo
Balanced Current
Segment DAC A
Balanced Current
Segment DAC B
Bipolar Offset
RF DC SERV DC
BPO DC
IOUT
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 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1993 Burr-Brown Corporation
PDS-1175B
1
Printed in U.S.A. June, 1995
PCM1702
®




Burr-Brown Corporation

PCM1702U Datasheet Preview

PCM1702U Datasheet

BiCMOS Advanced Sign Magnitude 20-Bit DIGITAL-TO-ANALOG CONVERTER

No Preview Available !

SPECIFICATIONS
All specifications at 25°C, ±VCC and +VDD = ±5V unless otherwise noted.
PCM1702P/U, -J, -K
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION
20 Bits
DYNAMIC RANGE, THD + N at –60dB Referred to Full Scale, with A-weight
110 dB
DIGITAL INPUT
Logic Family
Logic Level:
Data Format
VIH
VIL
IIH
IIL
Input Clock Frequency
VIH = +VDD
VIL = 0V
TTL/CMOS Compatible
+2.4
0
+VDD
0.8
±10
±10
Serial, MSB First, BTC(1)
12.5 20.0
V
V
µA
µA
MHz
TOTAL HARMONIC DISTORTION + N(2)
P/U
P/U, -J
P/U, -K
VO = 0dB
VO = –20dB
VO = –60dB
V = 0dB
O
VO = –20dB
V = –60dB
O
VO = 0dB
V = –20dB
O
VO = –60dB
ACCURACY
Level Linearity
Gain Error
Bipolar Zero Error(5)
Gain Drift
Bipolar Zero Drift
Warm-up Time
fS = 352.8kHz(3), f = 1002Hz(4)
fS = 352.8kHz(3), f = 1002Hz(4)
fS = 352.8kHz(3), f = 1002Hz(4)
f = 352.8kHz(3), f = 1002Hz(4)
S
fS = 352.8kHz(3), f = 1002Hz(4)
f = 352.8kHz(3), f = 1002Hz(4)
S
fS = 352.8kHz(3), f = 1002Hz(4)
f = 352.8kHz(3), f = 1002Hz(4)
S
fS = 352.8kHz(3), f = 1002Hz(4)
At –90dB Signal Level
0°C to 70°C
0°C to 70°C
–92
–82
–46
–96
–83
–48
–100
–84
–50
±0.5
±0.5
±0.25
±25
±5
1
–88 dB
–74 dB
–40 dB
–92 dB
–76 dB
–42 dB
–96 dB
–80 dB
–44 dB
dB
±3 %
%
ppm of FSR/°C
ppm of FSR/°C
minute
IDLE CHANNEL SNR(6)
Bipolar Zero, A-weighted Filter
110 120
dB
ANALOG OUTPUT
Output Range
Output Impedance
Settling Time
Glitch Energy
(±0.003% of FSR, 1.2mA Step)
±1.2
1.0
200
No Glitch Around Zero
mA
k
ns
POWER SUPPLY REQUIREMENTS
Supply Voltage Range: +VCC = +VDD
–V = –V
CC DD
Combined Supply Current: +ICC
Combined Supply Current: –ICC
Power Dissipation
TEMPERATURE RANGE
Operating
Storage
+VCC = +VDD = +5V
–VCC = –VDD = –5V
±VCC = ±VDD = ±5V
+4.75
–4.75
–25
–55
+5.00
–5.00
+5.00
–25.00
150
+5.25
–5.25
+9.0
–41.0
250
+85
+125
V
V
mA
mA
mW
°C
°C
NOTES: (1) Binary Two’s Complement coding. (2) Ratio of (DistortionRMS + NoiseRMS) / SignalRMS. (3) D/A converter sample frequency (8 x 44.1kHz; 8x oversampling).
(4) D/A converter output frequency (signal level). (5) Offset error at bipolar zero. (6) Measured using an OPA627 and 5kfeedback and an A-weighted filter.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
PCM1702
2


Part Number PCM1702U
Description BiCMOS Advanced Sign Magnitude 20-Bit DIGITAL-TO-ANALOG CONVERTER
Maker Burr-Brown Corporation
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PCM1702U Datasheet PDF






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