HT82V731 Audio D/A Converter Features · CMOS technology · Low total harmonic distortion · Low power consumption · 5 voltage single power supply · Two voltage output channel in the same chip · Data in 2¢s complement format, TTL · 16-bit dynamic range · 8-pin SOP package Applications · Digital audio equipment · MPEG card · CD ROM/VCD General Description HT82V731 is a 16-bit digital-to-analog converter IC utilizing CMOS technology specially designed for stereo audio application. 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. 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. Block Diagram F lo a tin g D a ta C o n v e r s io n V + o p D A C O u t R C H D D B C K W S D a ta L a tc h + D IN O u t o p + V D D V S S F lo a tin g D a ta C o n v e r s io n o p O u t L C H D A C Pin Assignment B C K 1 8 R C H W S 2 7 N C D IN 3 6 L C H V S S 4 5 V D D H T 8 2 V 7 3 1 8 S O P -A Rev. 1.00 1 October 29, 2002 HT82V731 Pin Description Pin No. Pin Name I/O Description 1 BCK I Bit serial clock input 2 WS I Word select input 3 DIN I Data input 4 VSS ¾ Negative power supply, ground 5 VDD ¾ Positive power supply 6 LCH O Left channel output 7 NC ¾ No connection 8 RCH O Right channel output Electrical Characteristics Symbol Ta=25°C Test Conditions Parameter VDD Conditions Min. Typ. Max. Unit VDD Supply Voltage ¾ ¾ 4.5 5.0 5.5 V IDD Supply Current 5V ¾ ¾ ¾ 6.0 mA VO Maximum Output Amplitude 5V ¾ ¾ 2.5 ¾ Vpp fBCK Bit Clock Input Frequency ¾ ¾ ¾ ¾ 18.4 MHz fWS Word Select Input Frequency ¾ ¾ ¾ ¾ 300 kHz THD Total Harmonic Distortion 5V 1kHz, 0dB ¾ 0.12 ¾ % DR Dynamic Range 5V ¾ ¾ 16 ¾ Bit S/N Signal to Noise Ratio 5V 1kHz, 0dB ¾ 82 ¾ dB CT Cross Talk 5V 1kHz, 0dB ¾ ¾ ¾ dB Timing Diagrams W S R ig h t tr th L e ft tf B C K D A T A L S B + 1 L S B M S B M S B -1 S a m p le O u t Timing and input signals Rev. 1.00 2 October 29, 2002 HT82V731 Application Circuits V 1 0 W D D + 4 7 m F + 1 0 0 n F 4 2 0 p F 5 V D D 1 R C H 2 2 k W 8 2 3 W S H T 8 2 V 7 3 1 7 N C D A T A L C H 4 2 0 p F 2 2 k W 6 V S S 2 .2 n F 4 Rev. 1.00 1 0 0 p F 2 .2 n F B C K + 2 2 k W 3 2 2 k W + 1 0 0 p F October 29, 2002 HT82V731 Package Information 8-pin SOP (150mil) outline dimensions 5 8 A B 4 1 C C ' G H D E Symbol Rev. 1.00 a F Dimensions in mil Min. Nom. Max. A 228 ¾ 244 B 149 ¾ 157 C 14 ¾ 20 C¢ 189 ¾ 197 D 53 ¾ 69 E ¾ 50 ¾ F 4 ¾ 10 G 22 ¾ 28 H 4 ¾ 12 a 0° ¾ 10° 4 October 29, 2002 HT82V731 Product Tape and Reel Specifications Reel dimensions D T 2 A C B T 1 SOP 8N Symbol Description Dimensions in mm A Reel Outer Diameter 330±1.0 B Reel Inner Diameter 62±1.5 C Spindle Hole Diameter 13.0+0.5 -0.2 D Key Slit Width 2.0±0.15 T1 Space Between Flange 12.8+0.3 -0.2 T2 Reel Thickness 18.2±0.2 Rev. 1.00 5 October 29, 2002 HT82V731 Carrier tape dimensions P 0 D P 1 t E F W C D 1 B 0 P K 0 A 0 SOP 8N Symbol Description Dimensions in mm W Carrier Tape Width 12.0+0.3 -0.1 P Cavity Pitch 8.0±0.1 E Perforation Position 1.75±0.1 F Cavity to Perforation (Width Direction) 5.5±0.1 D Perforation Diameter 1.55±0.1 D1 Cavity Hole Diameter 1.5+0.25 P0 Perforation Pitch 4.0±0.1 P1 Cavity to Perforation (Length Direction) 2.0±0.1 A0 Cavity Length 6.4±0.1 B0 Cavity Width 5.20±0.1 K0 Cavity Depth 2.1±0.1 t Carrier Tape Thickness 0.3±0.05 C Cover Tape Width Rev. 1.00 9.3 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 Ó 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