99W062A Headphone/Speaker amplifier for notebook PC BH7821BFP-Y Description Dimension(Units:mm) The BH7821BFP-Y is a sound amplifier developed for notebook PCs. It includes input for SYSTEM BEEP sound, PM BEEP sound, and SUSPEND function required for the notebook PC. This analog sound device is integrated into a single chip. Features 1)Built-in stereo headphone amplifier applicable to mixing input 2)Built-in BTL stereo speaker amplifier applicable to mixing input 3)Built-in anti-pop circuit when the power is turned ON and OFF 4)Built-in electronic volume and mute circuit 5)Low power consumption provided by the discrete HALT mode for headphone amplifier and the speaker amplifier (SUSPEND function) 6)Provides two systems of BEEP sound input for notebook PCs. 7)Applicable to PC' 99 HSOP25 Applications Notebook PCs Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits Supply voltage VCC +6.0 Power dissipation Pd 1450* Unit V mW Operating temperature range Topr -10 ~ 70 ˚C Storage temperature range Tstg -55 ~ 150 ˚C *Derating: -11.6mW/˚C for operation above Ta=25˚C. * Mounted on a glass epoxy board (70mm 70mm 1.6mm) July, 1999 Recommended Operating Conditions (Ta=25˚C) Symbol Parameter Supply voltatge Min. VCC Typ. Max. Unit - +5.5 V +4.5 Electrical characteristics (Unless otherwise noted, Ta=25˚C, HP Vcc=Sp Vcc= 5.0V) Parameter Symbol Min. ICC - ICCS - Circuit current Circuit curent SUSPEND VOHP Distortion rate THDHP Maximum output level VOMHP -6.3 0 <HP AMP2> <SP AMP1> Output voltage level Distortion rate Maximum output level -1.2 THDSP VOMSP +3.5 - <SP AMP2> -6.5 VOSB VE =HP VCC (EVR=MAX) VM =H (HP MUTE OFF) Conditions -4.0 0.02 +2.5 -0.3 0.1 - dBV VIN=-10.0dBV VIN=-10.0dBV, B.W.=0.4~30kHz % dBV THD=1%, B.W.=0.4~30kHz 0.32 0.46 Vpp VIN=5.0VPP INPUT: SP IN , OUTPUT: SP OUT L/R VOSB Output level Unit INPUT: SYSTEM BEEP IN , OUTPUT: HP OUT L/R 0.26 VOHP Output voltage level Max. No input mA 50 30 No input, VH=VS=H 1.5 mA 0.8 INPUT: LINE IN L/R, OUTPUT: HP OUT L/R <HP AMP1> Output voltage level Typ. +2.0 VIN=-10.0dBV dBV 1.5 VIN=-10.0dBV, B.W.=0.4~30kHz 0.4 % THD=10%, B.W.=0.4~30kHz +7.0 dBV INPUT: PM BEEP IN , OUTPUT: SP OUT L/R -4.0 (HP SUSPEND) VH =H +4.7 -0.5 (SP SUSPEND) VS =L VIN=-10.0dBV dBV VL =L (LINE MIX ON) VN =H Application circuit HP Vcc 1 LINE IN L 2 MUTE CTRL 3 LINE IN R 4 25 HP Vcc + + + VR 24 + + SYSTEM BEEP IN 23 + HP GND VR HP GND 22 5 BIAS 21 6 20 7 SP Vcc SP Vcc 8 PM BEEP IN + 18 9 10 19 + + 17 SP SP 11 HP SUSPEND SP SUSPEND 12 13 16 HP SUSPEND SP SUSPEND MONO/ST 15 SP GND 14 SP GND (STEREO)