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| 99W062A Headphone/Speaker amplifier for notebook PC BH7821BFP-Y Description 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. Dimension(Units:mm) 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=25C) Parameter Supply voltage Power dissipation Operating temperature range Storage temperature range Symbol VCC Pd Topr Tstg Limits +6.0 1450* -10 ~ 70 -55 ~ 150 Unit V mW C C *Derating: -11.6mW/C for operation above Ta=25C. * Mounted on a glass epoxy board (70mm 70mm 1.6mm) July, 1999 Recommended Operating Conditions (Ta=25C) Parameter Supply voltatge Symbol VCC Min. +4.5 Typ. Max. +5.5 Unit V Electrical characteristics (Unless otherwise noted, Ta=25C, HP Vcc=Sp Vcc= 5.0V) Parameter Circuit current Circuit curent SUSPEND Output voltage level Distortion rate Maximum output level Output voltage level Output voltage level Distortion rate Maximum output level Output level VE =HP VCC (EVR=MAX) VM =H Symbol ICC ICCS (HP MUTE OFF) Min. -6.3 0 0.26 -1.2 +3.5 -6.5 VH =H Typ. Max. Unit Conditions 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 -4.0 0.02 +2.5 0.32 +2.0 -0.3 0.1 0.46 +4.7 dBV % dBV Vpp dBV VIN=-10.0dBV VIN=-10.0dBV, B.W.=0.4~30kHz THD=1%, B.W.=0.4~30kHz VIN=5.0VPP VIN=-10.0dBV INPUT: SYSTEM BEEP IN , OUTPUT: HP OUT L/R INPUT: SP IN , OUTPUT: SP OUT L/R 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 -0.5 VS =L dBV VIN=-10.0dBV VL =L (LINE MIX ON) VN =H (STEREO) (HP SUSPEND) (SP SUSPEND) Application circuit 1 HP Vcc 25 + + HP Vcc LINE IN L MUTE CTRL LINE IN R + 2 3 4 5 BIAS 6 + VR 24 + 23 + VR HP GND HP GND 22 21 20 SYSTEM BEEP IN 7 SP Vcc 8 SP Vcc 19 18 + PM BEEP IN SP 9 10 11 + + 17 SP 16 HP SUSPEND SP SUSPEND 12 13 HP SUSPEND SP SUSPEND SP GND 15 14 SP GND MONO/ST |
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