MSM7510GS-K OKI [OKI electronic componets], MSM7510GS-K Datasheet - Page 8

• Manufacturer Part Number: MSM7510GS-K
• Description: 300 bps Full Duplex FSK Modem - ITU-T V.21
• Manufacturer: OKI [OKI electronic componets]

OPERATION MODE
Phone
Line
Phone
Line
* Answer Tone Transmit: RS = "0"
MOD2
Answer Tone Detect:
When transmitting the answer tone, CD is held at digital "1".
Semiconductor
0
0
1
1
AO
AO
AI
AI
SG
MOD1
0
1
0
1
Figure 3 Analog Loop Back Test Mode
Transmit Filter
Transmit Filter
Receive Filter
Receive Filter
Figure 2 FSK Modem Normal Mode
RS = "1"
Detect
Non-detect
Table 1 Operation Mode
FSK Modem Normal Mode (Fig.2)
Analog Loop Back Test Mode (Fig.3)
Answer Tone Transmit/Detect Mode*
Power Down Mode
Æ
Æ
Æ
Æ
Enable
Disable
CD = "0"
CD = "1"
Demodulator
Demodulator
Modulator
Modulator
Mode
XD
XD
RD
RD
MSM7510
DTE
DTE
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