msm7512b Oki Semiconductor, msm7512b Datasheet - Page 10
msm7512b
Manufacturer Part Number
msm7512b
Description
1200 Bps Half Duplex Fsk Modem ? Itu-t V.2
Manufacturer
Oki Semiconductor
Datasheet
1.MSM7512B.pdf
(12 pages)
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An Example of the External Adjustment for a transmitting Level and detecting Level
If you desire to change the transmitting level or detecting level, adjust the external circuit
by referring to the following circuit.
Semiconductor
VAOL
600 W
Line
VAIL
Line transmitting level : V
IC input level
51 kW
–
+
: V
51 kW
600 W
AOL
AI
= V
= V
R3
AIL ¥
AO ¥
R2
–
+
(R4/R3)
(R2/R1)
R1
R4
–
+
2.2 mF
2.2 mF
51 kW
VAO
VAI
MSM7512B
51 kW
10/12
AO
AI