HT82V736 Stereo Headphone Driver with Mute Features · Operating voltage: 2.4V~6.0V · Short circuit elimination · Internal mute function to prevent power On/Off clicks · Integrated voltage divider (VDD/2) to eliminate external resistors · Excellent power supply ripple rejection · High slew rate · Wide temperature operating range · Low total harmonic distortion · 8-pin SOP package · Low power consumption Applications · CD-ROM/RW, DVD-ROM/RW · Discman, Camcorders · PDA, MP3 · Headphone Amplifier · Portable Digital Audio General Description The HT82V736 has a fixed gain of 6dB so that external gain setting is unnecessary. It is fully pin and functionally compatible with BH3544 which is suitable for effective low cost applications. The HT82V736 is a class AB stereo earphone driver designed for portable digital audio application. It provides an integrated mute function to prevent popping sounds when power is turned on and off. In addition, the HT82V736 further integrates a voltage divider, and therefore the external resistors can be eliminated. Block Diagram M u te M U T E O U T 1 O U T 2 6 d B A B + + 9 0 k W 9 0 k W IN 1 6 d B V D D IN 2 B ia s V S S B IA S Pin Assignment O U T 1 1 8 V D D M U T E 2 7 O U T 2 IN 1 3 6 B IA S V S S 4 5 IN 2 H T 8 2 V 7 3 6 8 S O P -A Rev. 1.00 1 February 3, 2005 HT82V736 Pin Description Pin No. Pin Name I/O 1 OUT1 O Channel 1 output pin Description 2 MUTE I Mute control (Mute On: low; Mute Off: high) 3 IN1 I Audio input channel 1 4 VSS ¾ 5 IN2 I Audio input channel 2 Negative power supply, ground 6 BIAS I VDD/2 connected a capacitor to ground to eliminate power On/Off clicks 7 OUT2 O Channel 2 output pin 8 VDD ¾ Positive power supply Absolute Maximum Ratings Supply Voltage ..........................VSS-0.3V to VSS+7.0V Storage Temperature ...........................-50°C to 125°C Input Voltage .............................VSS-0.3V to VDD+0.3V Operating Temperature ..........................-40°C to 85°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Electrical Characteristics Symbol VIN=0.5Vrms; Vss=0V; f=1kHz; Ta=25°C; RL=32W (unless otherwise specified) Parameter Test Conditions VDD Conditions ¾ Min. Typ. Max. Unit 2.4 ¾ 6.0 V VDD Supply Voltage ¾ IQ Quiescent Current 5V VIN=0Vrms ¾ 2.5 4.0 mA IMUTE Mute Current 5V VIN=0Vrms ¾ 100 ¾ mA D.C. Characteristics VMUTE Mute Pin Control Voltage 5V ¾ 0.3 0.7 1.6 V DAV Differential Channel Voltage Gain 5V ¾ -0.5 0 0.5 dB AV Voltage Gain 5V ¾ ¾ 6 ¾ dB PSRR Power Supply Rejection Ratio 5V fRR=100Hz; VRR=-20dBV 65 75 ¾ dB PO1 Rated Output Power 1 5V RL=32W, THD<0.1% 60 65 ¾ mW PO2 Rated Output Power 2 5V RL=16W, THD<0.1% 110 115 ¾ mW A.C. Characteristics THD Total Harmonic Channel Distortion Factor 5V BW=20~20kHz ¾ 0.02 0.05 % ATT Mute Attenuation 5V f=1kHz 80 90 ¾ dB XTALK Channel Separation 5V f=1kHz 55 70 ¾ dB VNO Output Noise Voltage 5V VIN=0Vrms, BW=20~20kHz ¾ -97 -90 dBV Rev. 1.00 2 February 3, 2005 HT82V736 Typical Performance Characteristics 2 0 V D D = 5 V f= 1 0 0 H z 1 0 5 2 T H D + N (% ) 1 0 .5 0 .2 0 .1 0 .0 5 0 .0 2 0 .0 1 2 0 0 m 5 0 0 m 1 m 2 m 5 m 1 0 m 2 0 m 5 0 m 1 0 0 m 2 0 0 m 5 0 m 1 0 0 m 2 0 0 m O u tp u t P o w e r (W ) Fig.1 Total Harmonic Distortion vs. Output Power 2 0 V 1 0 D D = 5 V f= 1 k H z 5 2 T H D + N (% ) 1 0 .5 0 .2 0 .1 0 .0 5 0 .0 2 0 .0 1 2 0 0 m 5 0 0 m 1 m 2 m 5 m 1 0 m 2 0 m O u tp u t P o w e r (W ) Fig.2 Total Harmonic Distortion vs. Output Power Rev. 1.00 3 February 3, 2005 HT82V736 2 0 V D D = 5 V f= 1 0 k H z 1 0 5 2 T H D + N (% ) 1 0 .5 0 .2 0 .1 0 .0 5 0 .0 2 0 .0 1 2 0 0 m 5 0 0 m 1 m 2 m 5 m 1 0 m 2 0 m 5 0 m 1 0 0 m 2 0 0 m O u tp u t P o w e r (W ) Fig.3 Total Harmonic Distortion vs. Output Power + 4 0 V D D = 5 V f= 1 k H z R L= 3 2 W + 3 0 + 2 0 + 1 0 M U T E O F F 0 -1 0 -2 0 V O (d B V ) -3 0 -4 0 -5 0 M u te A tte n u a tio n -6 0 -7 0 -8 0 -9 0 -1 0 0 M U T E O N -1 1 0 -1 2 0 -1 3 0 -1 4 0 2 0 5 0 1 0 0 2 0 0 5 0 0 1 k 2 k 5 k 1 0 k 2 0 k F re q u e n c y (H z ) Fig.4 Mute Attenuation vs. Frequency Rev. 1.00 4 February 3, 2005 HT82V736 0 -1 0 R -2 0 V = 5 V = 3 2 W D D L -3 0 O u tp u t N o is e V o lta g e (d B V ) -4 0 -5 0 -6 0 -7 0 -8 0 -9 0 -1 0 0 -1 1 0 C h a n n e l 1 -1 2 0 -1 3 0 C h a n n e l 2 -1 4 0 -1 5 0 1 0 5 0 2 0 1 0 0 2 0 0 5 0 0 1 k 2 k 5 k 1 0 k 2 0 k F re q u e n c y (H z ) Fig.5 Output Noise Voltage vs. Frequency Application Circuits 2 2 0 m F V M U T E 1 1 0 0 k W 2 1 m F V 3 V D D M U T E O U T 2 IN 1 IN 1 1 m F O U T 1 4 7 2 2 0 m F V 6 B IA S V S S IN 2 H T 8 2 V 7 3 6 Rev. 1.00 8 5 V 5 1 m F IN 2 1 0 m F D D 1 0 0 m F February 3, 2005 HT82V736 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° 6 February 3, 2005 HT82V736 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 B Reel Inner Diameter 62.0±1.5 C Spindle Hole Diameter 13.0+0.5 -0.2 D Key Slit Width 2.0±0.5 T1 Space Between Flange 12.8+0.3 -0.2 T2 Reel Thickness 18.2±0.2 Rev. 1.00 7 February 3, 2005 HT82V736 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 5.2±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 8 February 3, 2005 HT82V736 Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor Inc. (Shanghai Sales Office) 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233 Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) 43F, SEG Plaza, Shen Nan Zhong Road, Shenzhen, China 518031 Tel: 0755-8346-5589 Fax: 0755-8346-5590 ISDN: 0755-8346-5591 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031 Tel: 010-6641-0030, 6641-7751, 6641-7752 Fax: 010-6641-0125 Holmate Semiconductor, Inc. (North America Sales Office) 46712 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright Ó 2005 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¢s products are not authorized for use as critical components in life support devices or systems. 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 9 February 3, 2005