MAS7838N 查看數據表（PDF） - Micro Analog Systems Oy
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MAS7838N Datasheet PDF : 9 Pages
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$33/,&$7,21 ,1)250$7,21
RS232C
uP INTERFACE
TDI
RDO
MAS7838
TDO
TXC
RDI
RXC
DA7838.002
20 September, 2000
MODEM CIRCUITS
Sync Modem
Data Pump
PHONE LINE
u 6\QFKURQRXV VHULDO LQWHUIDFH ZLWK X3 LQWHUIDFH
Another application is a synchronous serial interface for uP which uses UART as a data source. The concept is
illustrated below.
u 'DWD PXOWLSOH[HU
A third application is a data multiplexing/demultiplexing
system. The system accepts data from several sources.
These data lines are sampled and the samples are sent
through a multiplexer to a demultiplexer. To accomplish
this, either a very high sample rate is needed or first
convert the data to synchronous mode, where
synchronous multiplexing can be used and only one
sample per data bit is needed.
CH 1
TDI
RDO
MAS7838
1
TDO
RDI
CH 2
MAS7838
2
MUX/
DEMUX
FORWARD
BACKWARD
MUX/
DEMUX
RDI
TDO
MAS7838
1
MAS7838
2
RDO
TDI
TIMING
CH N
N
N
6 (9)
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