AK2308LV_05 Datasheet, PDF (27/31 Pages) Asahi Kasei Microsystems – SPEECH CODEC for Digital Key telephone

ASAHI KASEI
APPLICATION CIRCUIT EXAMPLE
[AK2308LV]
l Transmit side pins
1uF
10uF
20kΩ
1.2kΩ
100pF
MIC3
MIC1
MIC2
10uF
1uF
20kΩ
1.2kΩ
100pF
HANDT3
HANDT1
HANDT2
l Receive side pins
DAOUT
1uF
20kΩ
1uF
RAIN
35k～71kΩ
RAO
1uF
SPI
HANDI
Handset
equivalent
circuit
1uF
10kΩ
HANDR
Speaker
equivalent
circuit _15Ω
SPOP
0.1mH 2kΩ _50pF
15Ω
SPON
Tone
input
1uF
TONEI
MS0227-E-01
27
2005/12