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| HT82V731 Audio D/A Converter Features * CMOS technology * Low power consumption * Two voltage output channel in the same chip * 16-bit dynamic range * Low total harmonic distortion * 5 voltage single power supply * Data in 2s complement format, TTL * 8-pin SOP package Applications * Digital audio equipment * CD ROM/VCD * MPEG card General Description HT82V731 is a 16-bit digital-to-analog converter IC utilizing CMOS technology specially designed for stereo audio application. HT82V731 converts the 16 bits serial data into an analog output voltage. The digital data is internally converted to floating point expression whose format consists of 10 bits mantissa and 7step exponent. Using an R-string voltage divider, this floating point expression data is then converted to analog voltage. It is compatible with TDA1311. It is available in 8-pin SOP package. Block Diagram O ut . lo a tin g D a ta C o n v e r s io n V BCK WS D IN D a ta L a tc h + O ut DD DAC + op RCH op + VDD VSS . lo a tin g D a ta C o n v e r s io n op O ut LCH DAC Pin Assignment BCK 1 8 2 7 3 6 4 5 WS D IN VSS RCH NC LCH VDD H T82V731 8 S O P -A Rev. 1.00 1 October 29, 2002 HT82V731 Pin Description Pin No. 1 2 3 4 5 6 7 8 Pin Name BCK WS DIN VSS VDD LCH NC RCH I/O I I I 3/4 3/4 O 3/4 O Bit serial clock input Word select input Data input Negative power supply, ground Positive power supply Left channel output No connection Right channel output Description Electrical Characteristics Symbol VDD IDD VO fBCK fWS THD DR S/N CT Parameter Supply Voltage Supply Current Maximum Output Amplitude Bit Clock Input Frequency Word Select Input Frequency Total Harmonic Distortion Dynamic Range Signal to Noise Ratio Cross Talk Test Conditions VDD 3/4 5V 5V 3/4 3/4 5V 5V 5V 5V Conditions 3/4 3/4 3/4 3/4 3/4 1kHz, 0dB 3/4 1kHz, 0dB 1kHz, 0dB Min. 4.5 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 Typ. 5.0 3/4 2.5 3/4 3/4 0.12 16 82 3/4 Max. 5.5 6.0 3/4 18.4 300 3/4 3/4 3/4 3/4 Ta=25C Unit V mA Vpp MHz kHz % Bit dB dB Timing Diagrams WS R ig h t L e ft tr th tf BCK DATA LSB+1 LSB MSB S a m p le O u t M S B -1 Timing and input signals Rev. 1.00 2 October 29, 2002 HT82V731 Application Circuits V 10W DD + 47m. + 100n. 5 VDD RCH 8 420p. 22kW 2 .2 n . 22kW + 100p. 1 2 3 BCK WS DATA LCH VSS 4 6 H T82V731 NC 7 420p. 22kW 2 .2 n . 22kW + 100p. Rev. 1.00 3 October 29, 2002 HT82V731 Package Information 8-pin SOP (150mil) outline dimensions A 1 8 5 B 4 C C' G D E . H a Symbol A B C C D E F G H a Dimensions in mil Min. 228 149 14 189 53 3/4 4 22 4 0 Nom. 3/4 3/4 3/4 3/4 3/4 50 3/4 3/4 3/4 3/4 Max. 244 157 20 197 69 3/4 10 28 12 10 Rev. 1.00 4 October 29, 2002 HT82V731 Product Tape and Reel Specifications Reel dimensions T2 D A B C T1 SOP 8N Symbol A B C D T1 T2 Description Reel Outer Diameter Reel Inner Diameter Spindle Hole Diameter Key Slit Width Space Between Flange Reel Thickness Dimensions in mm 3301.0 621.5 13.0+0.5 -0.2 2.00.15 12.8+0.3 -0.2 18.20.2 Rev. 1.00 5 October 29, 2002 HT82V731 Carrier tape dimensions D E . P0 P1 t W C B0 D1 P K0 A0 SOP 8N Symbol W P E F D D1 P0 P1 A0 B0 K0 t C Description Carrier Tape Width Cavity Pitch Perforation Position Cavity to Perforation (Width Direction) Perforation Diameter Cavity Hole Diameter Perforation Pitch Cavity to Perforation (Length Direction) Cavity Length Cavity Width Cavity Depth Carrier Tape Thickness Cover Tape Width Dimensions in mm 12.0+0.3 -0.1 8.00.1 1.750.1 5.50.1 1.550.1 1.5+0.25 4.00.1 2.00.1 6.40.1 5.200.1 2.10.1 0.30.05 9.3 Rev. 1.00 6 October 29, 2002 HT82V731 Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Sales Office) 11F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan Tel: 886-2-2782-9635 Fax: 886-2-2782-9636 Fax: 886-2-2782-7128 (International sales hotline) Holtek Semiconductor (Shanghai) Inc. 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor (Hong Kong) Ltd. RM.711, Tower 2, Cheung Sha Wan Plaza, 833 Cheung Sha Wan Rd., Kowloon, Hong Kong Tel: 852-2-745-8288 Fax: 852-2-742-8657 Holmate Semiconductor, Inc. 48531 Warm Springs Boulevard, Suite 413, Fremont, CA 94539 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright O 2002 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.00 7 October 29, 2002 |
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