AKD4633-A Datasheet, PDF (13/38 Pages) Asahi Kasei Microsystems – 16bit mono CODEC with MIC/SPK amplifier.

ASAHI KASEI
(2) Output Circuits
a) AOUT Output Circuit
[AKD4633-A]
AOUT
C28
1
2
1u
R20
220
R21
20k
AVSS
AVSS
Figure 5. AOUT Output Circuit
J5 _AOUT
2
3
1
MR-552LS
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”.
SPN
SVSS
SVSS
D1
A
K
DIODE ZENER
D2
A
K
DIODE ZENER
SPP
R15
10
JP13
Dynamic(EXT)
Piezo(EXT)
Dynamic
SPN_SEL
JP14
Dynamic(EXT)
Piezo(EXT)
Dynamic
SPP_SEL
R17
10
JP31
Dynamic
SVSS
3
4
6
CN5
2
1
J2
SPK-JACK
SPK1
020S16
R
L
Figure 6. SPK Output Circuit
(b-1) An external dynamic speaker is evaluated by using J2 (SPK-JACK) connector.
JP13
SPN_SEL
JP14
SPP_SEL
JP31
Dynamic
Dynamic Dynamic(EXT) Dynamic Dynamic(EXT)
Piezo(EXT)
Piezo(EXT)
(b-2) An external Piezo speaker is evaluated by using J2 (SPK-JACK) connector.
<KM079406>
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2007/04