AKD4537 Datasheet, PDF (7/32 Pages) Asahi Kasei Microsystems – Evaluation board Rev.B for AK4537

ASAHI KASEI
[AKD4537]
(2) Output Circuits
1. Headphone-amp Output Circuit
When faster muting speed than internal muting circuit is required, the following external muting circuit is
useful.
MUTE
E
3
Q1
B
RN2202
C
R5
10k
REG
C
B Q2
2SC3327
E
C7
R7
47u
16
J6
HPL
HP
HPR
C9
R8
47u
16
REG
E
Q3
3
RN2202
B
E Q4
C
2SC3327 R12
B
10k
C
MUTE
Figure 6. Headphone-amp Output Circuit
2. MOUT+ Output Circuit
MOUT+
C2
R2
220
22u
R3
47k
J4
MOUT+
<KM069501>
Figure 7. MOUT+ Output Circuit
-7-
2002/11