1997 Jun 12 9
Philips Semiconductors Product specification
2 W BTL audio amplifier TDA8543
Fig.7 THD as a function of frequency.
Po= 0.5 W, Gv= 20 dB.
(1) VCC = 5 V, RL=8Ω.
(2) VCC = 7.5 V, RL=8Ω.
(3) VCC = 9 V, RL=16Ω.
handbook, halfpage
10
1
10−1
10−2
MGK409
10 102103104
THD
(%)
f (Hz) 105
(1) (3)
(2)
Fig.8 SVRR as a function of frequency.
handbook, halfpage
−80
−60
−40
−20
MGD879
10 102103
SVRR
(dB)
f (Hz)
104105
(1)
(2)
(3)
VCC = 5 V, 8 Ω, Rs=0Ω, Vr= 100 mV.
(1) Gv=30dB.
(2) Gv=20dB.
(3) Gv= 6 dB.
Fig.9 Po as a function of VCC.
THD = 10%.
(1) RL=8Ω.
(2) RL=16Ω.
(3) RL=25Ω.
handbook, halfpage
0
(1) (2)
(3)
48
P
o
(W)
VCC (V) 12
2.5
0
2
1.5
1
0.5
MGK405
Fig.10 Worst case power dissipation as a function
of VCC.
(1) RL=8Ω.
(2) RL=16Ω.
(3) RL=25Ω.
handbook, halfpage
0
(1) (2) (3)
4
P
(W)
VCC (V)
812
2
1.5
0.5
0
1
MGK406