MSM6889GS-K データシートの表示（PDF） - Oki Electric Industry
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コンポーネント説明
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MSM6889GS-K Datasheet PDF : 21 Pages
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¡ Semiconductor
External Setup of Carrier Detect Level
MSM6889
11 VR1
VREF
R1
r1
12 VR2
R2
r2
6 SG
COMP
r1: 250 kW, r2 : 1 MW
R1//r1 + R2//r2 ≥ 20 kW
Figure 4
Operating Mode
Table 1 Operating Mode Table
Mode Select
1
2
3
0
0
0
1
0
0
0
1
0
1
1
0
0
0
1
1
0
1
0
1
1
1
1
1
Operating Mode
PB Tone Transmit
PB Tone Detect
Originate Mode
Modem (O)
Answer Mode
Modem (A)
Analog Loop Back O
Test (ALB)
A
Remote Digtal Loop O
Back Test (RDLB) A
PB GEN.
*
Functional Block
FSK
CPT REC.
PB REC. MODEM ICT1 = “1” ICT1 = “0”
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* : Active
When power is turned on or the power down mode is released, put the device into the PB tone
transmit mode or PB tone detect mode.
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