a udio dr iv er f or cellular phones descr iption dimension (units : mm) f eatures applications 01w092a j une , 2001 absolute maxim um ratings (t a=25 c) * der ating : 3.5mw/ c f or oper ation abo v e t a=25 c * pcb ( 70mmx70mm, t=1.6mm) glass epo xy mounting. BH7823AFVM apllied v oltage p o w er dissipation oper ating temper ature r ange stor age temper ature r ange p ar ameter symbol limits unit vccmax pd t opr tstg 6.0 370 +70 +125 ? 20 ? 55 ~ ~ mw c c v * msop8 4 1 5 8 2.9 0.1 0.475 0.22 0.65 4.0 0.2 0.6 0.2 0.29 0.15 2 . 8 0 . 1 0.75 0.05 0.08 0.05 0.9max. 0.08 s +0.05 - 0.04 0.145 +0.05 - 0.03 0.08 m a udio dr iv er f or cellular phones BH7823AFVM is an audio dr iv er ic de v eloped f or mobile audio appliances such as cellular phones . this dr iv er has achie v ed lo w v oltage dr iving and lo w po w er consumption. a udio signal can be gener ated from an y v ar ious audio appliances . (this speak er can dr iv e the load of 4 , 8 , and 12 .) achie v e high output po w er supply b y applying btl. suspend contol can k eep the circuit current at 0 a (t yp .) when it is not in use . 1) btl monaur al audio po w er amplifier 2) high po w er 500mw/8 /btl output 3) wide oper ating v oltage r ange 4) f or activ e/shutdo wn mode 5) built-in anti-pop circuit/ther mal shutdo wn circuit 6) p erf ect f or cellular phones , palm pc , hand-held appliances
* 1: 0.4 ~ 30khz * 2: din a udio application circuit oper ating v oltage r ange v ccs ? 2.8 5.5 v recommended oper ating conditions (t a=25 c) p ar ameter min. max. unit t yp . symbol circuit current 1 circuit current 2 v oltage gain 1 v oltage gain 2 maxim um output v oltage output distor tion r ate output residual noise suspend atten uation bias set v oltage suspend hold v oltage/ h suspend hold v oltage/ l i cc1 i cc2 g v1 g v2 v om dstn v no g s v bias v sh v sl ? ? 9.5 ? 2.0 4.8 ? ? ? 1.6 v cc /3+0.8 0 3 0 11.5 0 6.8 0.2 ? 94 ? 107 1.8 ? ? 7 2 13.5 2.0 ? 1.0 ? 80 ? 80 2.0 v cc 0.5 ma a db db dbv % dbv dbv v v v no signal activ e mode no signal suspend mode vin= ? 20dbv 1st op amp gain vin= ? 20dbv 2nd op amp gain dstn=10% btl * 1 vin= ? 20dbv se * 1 no signal, se activ e mode * 2 vin= ? 20dbv btl * 2 2pin dc v oltage activ e mode hold v oltage suspend mode hold v oltage electr ical char acter istics (unless otherwise noted; t a=25 c , vcc=3.6v , f=1khz, rl=8 ) symbol min. max. unit conditions t yp . p ar ameter 6 7 8 5 1 2 3 4 bias a/s suspend sp_in(l+r) r1 r2 c sp_out 4/8/12 speaker 0.1 0.1 1.0 1 BH7823AFVM * this product is not designed f or protection against r adioactiv e r a ys .
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