參數資料
型號: MSM6889
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: Multi-Function Telecommunication LSI(多功能遠程通信收發(fā)LSI)
中文描述: 多功能電信大規(guī)模集成電路(多功能遠程通信收發(fā)LSI)的
文件頁數: 14/21頁
文件大?。?/td> 159K
代理商: MSM6889
14/21
MSM6889
Semiconductor
External Setup of Carrier Detect Level
R1
R2
r1
r2
VR1
VR2
SG
VREF
COMP
R1//r1 + R2//r2
20 k
W
r1: 250 k
W
, r2
:
1 M
W
11
12
6
*
Mode Select
Functional Block
Operating Mode
CPT REC.
PB GEN.
PB REC.
FSK
MODEM
ICT1 = “1”
ICT1 = “0”
1
2
3
0
1
O
A
O
A
1
0
1
0
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
PB Tone Transmit
PB Tone Detect
Originate Mode
Modem (O)
Answer Mode
Modem (A)
Analog Loop Back
Test (ALB)
Remote Digtal Loop
Back Test (RDLB)
*
*
*
*
*
*
*
*
*
*
*
*
*
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.
Figure 4
Operating Mode
Table 1 Operating Mode Table
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