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TDA8927 Datasheet

  • TDA8927

  • Power stage 2 X 80 W class-D

  • 336.42KB

  • Philips

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Philips Semiconductors
Objective speci铿乧ation
Power stage 2
脳
80 W class-D
audio ampli铿乪r
13 AC CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
R
L
= 4
鈩?
THD = 0.5%; V
P
=
卤25
V
R
L
= 4
鈩?
THD = 10%; V
P
=
卤25
V
R
L
= 4
鈩?
THD = 0.5%; V
P
=
卤27
V
R
L
= 4
鈩?
THD = 10%; V
P
=
卤27
V
THD
total harmonic distortion
P
o
= 1 W; note 3
f
i
= 1 kHz
f
i
= 10 kHz
G
v(cl)
畏
P
o
closed-loop voltage gain
ef铿乧iency
P
o
= 30 W; f
i
= 1 kHz; note 4
R
L
= 8
鈩?
THD = 0.5%; V
P
=
卤25
V
R
L
= 8
鈩?
THD = 10%; V
P
=
卤25
V
R
L
= 4
鈩?
THD = 0.5%; V
P
=
卤17
V
R
L
= 4
鈩?
THD = 10%; V
P
=
卤17
V
THD
total harmonic distortion
P
o
= 1 W; note 3
f
i
= 1 kHz
f
i
= 10 kHz
G
v(cl)
畏
Notes
closed loop voltage gain
ef铿乧iency
P
o
= 30 W; f
i
= 1 kHz; note 4
鈭?/div>
鈭?/div>
35
鈭?/div>
0.01
0.1
36
94
鈭?/div>
鈭?/div>
29
鈭?/div>
100
(2)
128
(2)
80
(2)
100
(2)
0.01
0.1
30
94
MIN.
TYP.
TDA8927
MAX.
鈭?/div>
鈭?/div>
鈭?/div>
鈭?/div>
0.05
鈭?/div>
31
鈭?/div>
鈭?/div>
鈭?/div>
鈭?/div>
鈭?/div>
0.05
鈭?/div>
37
鈭?/div>
UNIT
Single-ended application;
note 1
P
o
output power
50
(2)
60
(2)
60
(2)
74
(2)
55
65
65
80
W
W
W
W
%
%
dB
%
Mono BTL application;
note 5
output power
112
140
87
110
W
W
W
W
%
%
dB
%
1. V
P
=
卤25
V; R
L
= 4
鈩?
f
i
= 1 kHz; T
amb
= 25
掳C;
measured in reference design in Figs 9 and 11; unless otherwise
specified.
2. Indirectly measured; based on R
ds(on)
measurement.
3. Total Harmonic Distortion (THD) is measured in a bandwidth of 22 Hz to 22 kHz. When distortion is measured using
a low-order low-pass filter a significantly higher value will be found, due to the switching frequency outside the audio
band.
4. Efficiency for power stage; output power measured across the loudspeaker load.
5. V
P
=
卤25
V; R
L
= 8
鈩?
f
i
= 1 kHz; T
amb
= 25
掳C;
measured in reference design in Figs 9 and 11; unless otherwise
specified.
2001 Dec 11
13

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