Philips TDA8543 - Manual (Page 9)

1997 Jun 12 9
NXP Semiconductors Product specification
2 W BTL audio amplifier TDA8543
Fig.7 THD as a function of frequency.
P
o
= 0.5 W, G
v
= 20 dB.
(1) V
CC
= 5 V, R
L
= 8
Ω.
(2) V
CC
= 7.5 V, R
L
= 8
Ω.
(3) V
CC
= 9 V, R
L
= 16
Ω.
handbook, halfpage
10
1
10
− 1
10
− 2
MGK409
10 10 2 10 3 10 4
THD
(%)
f (Hz)
10 5
(1)
(3)
(2)
Fig.8 SVRR as a function of frequency.
handbook, halfpage
− 80
− 60
− 40
− 20
MGD879
10 10 2 10 3
SVRR
(dB)
f (Hz)
10 4 10 5
(1)
(2)
(3)
V
CC
= 5 V, 8 Ω, R
s
= 0 Ω, V
r
= 100 mV.
(1) G
v
= 30 dB.
(2) G
v
= 20 dB.
(3) G
v
= 6 dB.
Fig.9 P
o
as a function of V
CC
.
THD = 10%.
(1) R
L
= 8 Ω.
(2) R
L
= 16 Ω.
(3) R
L
= 25
Ω.
handbook, halfpage
0
(1) (2)
(3)
4 8
Po
(W)
VCC (V)
12
2.5
0
2
1.5
1
0.5
MGK405
Fig.10 Worst case power dissipation as a function
of V
CC
.
(1) R
L
= 8 Ω.
(2) R
L
= 16 Ω.
(3) R
L
= 25 Ω.
handbook, halfpage
0
(1) (2) (3)
4
P
(W)
VCC (V)
8 12
2
1.5
0.5
0
1
MGK406