TDA8947J anfi devresi (2x25w 1x50w) - 320Volt
TDA8947J anfi devresi (2x25w 1x50w) - 320Volt
TDA8947J anfi devresi (2x25w 1x50w) - 320Volt
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Philips Semiconductors<br />
<strong>TDA8947J</strong><br />
4-channel audio amplifier<br />
50<br />
mce491<br />
50<br />
mce492<br />
P o<br />
(W)<br />
40<br />
P o<br />
(W)<br />
40<br />
30<br />
30<br />
20<br />
20<br />
10<br />
10<br />
0<br />
8 12 16 20 24 28<br />
V CC (V)<br />
0<br />
8 12 16 20 24 28<br />
V CC (V)<br />
THD = 10 %; R L =4Ω; f = 1 kHz.<br />
THD = 10 %; R L =8Ω; f = 1 kHz.<br />
a. SE b. BTL<br />
Fig 8. Output power as function of supply voltage<br />
20<br />
mce493<br />
20<br />
mce494<br />
P D<br />
(W)<br />
16<br />
P D<br />
(W)<br />
16<br />
12<br />
12<br />
8<br />
8<br />
4<br />
4<br />
0<br />
0<br />
0 4 8 12 16 20<br />
0 4 8 12 16 20<br />
P o (W)<br />
P o (W)<br />
V CC = 18 V; R L =4Ω.<br />
V CC = 18 V; R L =8Ω.<br />
a. SE b. BTL<br />
Fig 9. Total power dissipation as function of channel output power per channel (worst case, all channels driven)<br />
9397 750 14938 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.<br />
Product data sheet Rev. 02 — 16 June 2005 13 of 24
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