KAWA LCT37AD Service Manual page 71

Digital Power Amplifier
９．Application Examples
Fig.4 SE operation mode(10Wx2ch)
1u
330u
+
8Ω
IN1
R for
GND
(47k)
Fig.5 BTL operation mode (20W)
1u
STANDBY
IN
R for
GND
(47k)
R2S15102NP
0.1u
15uH Vz=27〜３０V
1
OUT1
2
VD1
0.1u
3
STBYL
STANDBY
4
PWM1
3p 150k
5
IN1
10k
0.47u
10u
0.1u
20 19
15uH Vz=27〜３０V
1
OUT1
2
VD1
0.1u
3
STBYL
4
PWM1
3p 150k
5
IN1
10k
0.47u
R for
6
GND
(150k)
10u
0.047u
10u
0.1u
20 19 18 17 16
OUT2
Exposed
VD2
Die Pad
R2S15102
MUTEL
PWM2
IN2
6 7 8 9 10
1k
22k 0.047u (note)
10u
This capacitance value depends on
the speaker peripheral circuit.
8Ω
0.047u
10u
0.1u
18 17 16
15
OUT2
Exposed
14
VD2
Die Pad
R2S15102
13
MUTEL
12
PWM2
11
IN2
7 8 9 10
1k
22k 0.047u
10u
69／127
(note)
"R for GND" 's are
for the evaluation only and
not needed actually.
0.1u 1000u
VD=+11〜25V
Vz=27〜３０V
15uH 1u
15
14
0.1u
13
12
150k 3p
11 IN2
10k
0.47u
R for
GND
1u
(47k)
0.1u 1000u
Vz=27〜３０V
15uH 1u
0.1u
150k 3p
47k
1u
330u
+
8Ω
47k
MUTE
0.1u R for
GND
(150k)
VD=+11〜25V
BTL Configuration
47k
MUTE
0.1u R for
GND
(150k)