
ASAHI KASEI
[AKD4633-A]
<KM079407>
2016/10
- 13 -
(2) Output Circuits
a) AOUT Output Circuit
Figure 5. AOUT Output Circuit
b) SPK Output Circuit
Note. When mini-jack is inserted or pulled out J2 (SPK-JACK) connector, JP13 (SPP_SEL) and JP14
(SPN_SEL) should be open, or “PMSPK bit” in the AK4633VN should be set to “0”.
SPP
SPN
1
2
CN5
R15
10
R17
10
6
4
3
J2
SPK-JACK
SVSS
JP31
Dynamic
020S16
R
L
SPK1
A
K
D1
DIODE ZENER
SVSS
Dynamic(EXT)
Dynamic
Piezo(EXT)
JP14
SPP_SEL
A
K
D2
DIODE ZENER
SVSS
Dynamic
Piezo(EXT)
Dynamic(EXT)
JP13
SPN_SEL
Figure 6. SPK Output Circuit
(b-1) An external dynamic speaker
is evaluated by using J2 (SPK-JACK) connector.
J5
MR-552LS
AOUT
R20
220
2
1
3
R21
20k
+
C28
1u
1
2
AVSS
AVSS
AOUT