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Part: PCM1702U-K
Category:
Data Conversion
-> DAC (Digital to Analog Converters)
-> Audio DACs
Description: ti PCM1702, Bicmos Advanced Sign Magnitude 20-Bit D/A Converter
Company: Texas Instruments, Inc.
Datasheet: Download PCM1702U-K datasheet File size : 115 kB
Request For quote: Find where to buy PCM1702U-K
Datasheet text preview:
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49% FPO
CM1702P PCM1702U
BiCMOS Advanced Sign Magnitude 20-Bit DIGITAL-TO-ANALOG CONVERTER
FEATURES
q ULTRA LOW 96dB max THD+N (No External Adjustment Required) q q q q q NEAR-IDEAL LOW LEVEL OPERATION GLITCH-FREE OUTPUT 120dB SNR TYP (A-Weight Method) INDUSTRY STD SERIAL INPUT FORMAT FAST (200ns) CURRENT OUTPUT (±1.2mA)
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 eliminates 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.
q CAPABLE OF 16X OVERSAMPLING q COMPLETE WITH REFERENCE q LOW POWER (150mW typ)
lock C ata DE COM L A+ DCOM
VCC VCC
Input Shift Register and Control Logic
B Balanced Current Segment DAC A
Balanced Current Segment DAC B Refa rence e S nd ervo Bipolar Offset
P
OUT
I
RF DC
SERV DC
PO DC
International Airport Industrial Park · Mailing Address: PO Box 11400 Tel: (520) 746-1111 · Twx: 910-952-1111 · Cable: BBRCORP · © 1993 Burr-Brown Corporation
· Tucson, AZ 85734 · Street Address: 6730 S. Tucson Blvd. · Tucson, AZ 85706 Telex: 066-6491 · FAX: (520) 889-1510 · Immediate Product Info: (800) 548-6132 PDS-1175B Printed in U.S.A. June, 1995
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1
PCM1702
SBAS026
SPECIFICATIONS
All specifications at 25°C, ±VCC and +VDD = ±5V unless otherwise noted. PCM1702P/U, -J, -K PARAMETER RESOLUTION DYNAMIC RANGE, THD + N at 60dB Referred to Full Scale, with A-weight DIGITAL INPUT Logic Family Logic Level: VIH VIL IIH IIL Data Format Input Clock Frequency TOTAL HARMONIC DISTORTION + N P/U VO = 0dB VO = 20dB VO = 60dB P/U, -J VO = 0dB VO = 20dB VO = 60dB P/U, -K VO = 0dB VO = 20dB VO = 60dB ACCURACY Level Linearity Gain Error Bipolar Zero Error(5) Gain Drift Bipolar Zero Drift Warm-up Time IDLE CHANNEL SNR(6) ANALOG OUTPUT Output Range Output Impedance Settling Time Glitch Energy POWER SUPPLY REQUIREMENTS Supply Voltage Range: +VCC = +VDD VCC = VDD Combined Supply Current: +ICC Combined Supply Current: ICC Power Dissipation TEMPERATURE RANGE Operating Storage
(2)
CONDITIONS
MIN 20
TYP
MAX
UNITS Bits
110 TTL/CMOS Compatible +2.4 0 +VDD 0.8 ±10 ±10 Serial, MSB First, BTC(1) 12.5 20.0
dB
VIH = +VDD VIL = 0V
V V µA µA MHz dB dB dB dB dB dB dB dB dB dB % % ppm of FSR/°C ppm of FSR/°C minute dB mA k ns
fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) fS = 352.8kHz(3), f = 1002Hz(4) At 90dB Signal Level
92 82 46 96 83 48 100 84 50 ±0.5 ±0.5 ±0.25 ±25 ±5 1 110 120 ±1.2 1.0 200 No Glitch Around Zero +4.75 4.75 +5.00 5.00 +5.00 25.00 150
88 74 40 92 76 42 96 80 44
±3
0°C to 70°C 0°C to 70°C Bipolar Zero, A-weighted Filter
(±0.003% of FSR, 1.2mA Step)
+VCC = +VDD = +5V VCC = VDD = 5V ±VCC = ±VDD = ±5V 25 55
+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 5k feedback 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.
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PCM1702
2
ABSOLUTE MAXIMUM RATINGS (DIP Package)
Power Supply Voltage ......... ±6.5VDC Input Logic Voltage .......... DGND--0.3V~+VDD+0.3V Operating Temperature ..... 25°C to +85°C Storage Temperature ...... 55°C to +125°C Power Dissipation ........ 500mW Lead Temperature (soldering, 10s) ........ 260°C
ABSOLUTE MAXIMUM RATINGS (SOP Package)
Power Supply Voltage ......... ±6.5VDC Input Logic Voltage .......... DGND--0.3V~+VDD+0.3V Operating Temperature ..... 25°C to +85°C Storage Temperature ...... 55°C to +125°C Power Dissipation ........ 300mW Lead Temperature (soldering, 5s) .... 260°C
PIN ASSIGNMENTS (DIP Package)
PIN 1 2 3 4 5 6 7 8 MNEMONIC DATA CLOCK +VDD DCOM VDD LE NC NC PIN 9 10 11 12 13 14 15 16 MNEMONIC +VCC BPO DC IOUT ACOM ACOM SERV DC REF DC VCC
PIN ASSIGNMENTS (SOP Package)
PIN 1 2 3 4 5 6 7 8 9 10 MNEMONIC DATA CLOCK NC +VDD DCOM VDD LE NC NC NC PIN 11 12 13 14 15 16 17 18 19 20 MNEMONIC +VCC BPO DC NC IOUT ACOM ACOM SERV DC NC RFE DC VCC
PACKAGE INFORMATION(1)
MODEL PCM1702P PCM1702U PACKAGE 16-Pin Plastic DIP 20-Pin Plastic SOP PACKAGE DRAWING NUMBER 180 248
GRADE MARKING (SOP Package)
MODEL PCM1702U PCM1702U-J PCM1702U-K PACKAGE Marked PCM1702. Marked with white dot by pin 10. Marked with red dot by pin 10.
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book.
CONNECTION DIAGRAM
7µF 4 1
LOCK D ATA L E 5V VDD 4 C 47µF 7µF +5V VDD
+
1 2 7 4 5 6
1 6 3 4 5 2
16 10 15 19 14 17 11 14 9 12 0 1 21 1 + + 7µF 13 16 2 5 4 + + 5V VCC 4 +7µF + 22µF 00µF
5V VCC RNF
V
OUT
= +
SOP = DIP
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3
PCM1702
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