Philips Semiconductors
TDA8947J
4-channel audio amplifier
50
Po
(W)
40
MCE491
50
Po
(W)
40
MCE492
30
30
20
20
10
0
8
12
16
20
24
28
VCC (V)
THD = 10%; RL = 4 Ω; f = 1 kHz.
a. SE
Fig 8. Output power as function of supply voltage.
10
0
8
12
16
20
THD = 10%; RL = 8 Ω; f = 1 kHz.
b. BTL
24
28
VCC (V)
20
PD
(W)
16
MCE493
20
PD
(W)
16
MCE494
12
12
8
8
4
4
0
0
4
8
12
16
20
Po (W)
0
0
4
8
12
16
20
Po (W)
VCC = 18 V; RL = 4 Ω.
a. SE
VCC = 18 V; RL = 8 Ω.
b. BTL
Fig 9. Total power dissipation as function of channel output power per channel (worst case, all channels driven).
9397 750 10779
Preliminary data
Rev. 01 — 06 February 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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