Philips TDA8950 - Page 28

TDA8950_2 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 02 — 11 June 2009 28 of 39
NXP Semiconductors
TDA8950
2 × 150 W class-D power amplifier
Infinite heat sink used.
f
i
= 1 kHz, f
osc
= 345 kHz.
(1) THD + N = 10 %, 4 Ω.
(2) THD + N = 0.5 %, 4 Ω; THD + N = 10 %, 6 Ω.
(3) THD + N = 10 %, 8 Ω; THD + N = 0.5 %, 6 Ω
(4) THD + N = 0.5 %, 8 Ω.
Fig 21. Output power as a function of supply voltage, SE configuration
Infinite heat sink used.
f
i
= 1 kHz, f
osc
= 345 kHz.
(1) THD + N = 10 %, 8 Ω.
(2) THD + N = 0.5 %, 8 Ω.
(3) THD + N = 10 %, 16 Ω.
(4) THD + N = 0.5 %, 16 Ω.
Fig 22. Output power as a function of supply voltage, BTL configuration
V
p
(V)
12.5 4032.53022.5 2515 17.5 20 37.53527.5
001aai707
60
20
100
120
140
160
200
40
80
180
P
o
(W)
0
(1)
(2)
(3)
(4)
V
p
(V)
12.5 4032.53022.5 2515 17.5 20 37.53527.5
001aai708
150
50
250
350
100
200
300
P
o
(W)
0
(1)
(2)
(3)
(4)