MSM7577 데이터 시트보기 (PDF) - Oki Electric Industry
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MSM7577 Datasheet PDF : 8 Pages
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¡ Semiconductor
APPLICATION CIRCUIT
MSM7577
Transmit voice data
R1
R2 C3
C1
Receive voice data
MSM7577MS-K
1 TAUD
2 AN2
3 PD
4 RCV2
5 RCV1
6 NC
7 RAUD
8 GND
VDD 16
AO3 15
MIC 14
AN3 13
ATTE 12
ATT2 11
ATT1 10
ATT0 9
In the Reverse Type
C6
R4
AO3
Analog input
C5 R3
AN3
–
MIC
+
+3 V
C2
C4
C1
R1 > 30 kW
R2 > 30 kW
C1 = 0.1 µF
C2 = 1 µF
C3 = 50 pF
C4 = 10 pF
Gain = R2/R1
R3 > 10 kW
R4 > 10 kW
C5 > 1 µF
C6 = 50 pF
Gain = R4/R3
In the Same Phase Type
C7
Analog input
R5
R6
C9
C8
MIC –
AN3 +
AO3
R5 > 10 kW
R6 > 10 kW
C7 > 0.1 µF
C8 > 1 µF
C9 = 10 pF
Gain = 1 + (R5/R6)
7/8
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