Philips Semiconductors
Objective speci铿乧ation
Power stage 2
脳
80 W class-D
audio ampli铿乪r
COMPONENT
R4, R5,
R6 and R7
R10
R11, R12,
R13 and R14
R15 and R16
R19
R20
R21
R22
R24
DESCRIPTION
input resistors
diagnostic resistor
snubber resistors
resonance suppression resistors
mode select resistor
mute select resistor
resistor needed when using an
asymmetrical supply
resistor needed when using an
asymmetrical supply
bias resistor for powering-up the power
stage
Curves measured in reference design
VALUE
10 k鈩?/div>
1 k鈩?/div>
5.6
鈩?
>0.25 W
24
鈩?/div>
39 k鈩?/div>
39 k鈩?/div>
10 k鈩?/div>
9.1 k鈩?/div>
200 k鈩?/div>
TDA8927
COMMENTS
4
脳
SMD1206
SMD1206
4
脳
SMD1206
2
脳
SMD1206
SMD1206
SMD1206
SMD1206
SMD1206
SMD1206
15.6
handbook, halfpage
10
2
MLD627
handbook, halfpage
10
2
MLD628
THD+N
(%)
10
THD+N
(%)
10
1
(1)
1
10
鈭?
10
鈭?
(2)
(1)
10
鈭?
(3)
10
鈭?
(2)
10
鈭? 鈭?
10
10
鈭?
1
10
10
2
Po (W)
10
3
10
鈭?
10
10
2
10
3
10
4
f i (Hz)
10
5
2
脳
8
鈩?/div>
SE; V
P
=
卤25
V:
(1) 10 kHz.
(2) 1 kHz.
(3) 100 Hz.
2
脳
8
鈩?/div>
SE; V
P
=
卤25
V:
(1) P
o
= 10 W.
(2) P
o
= 1 W.
Fig.13 THD + N as a function of output power.
Fig.14 THD + N as a function of input frequency.
2001 Dec 11
23
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