MAS9138A1SD06 View Datasheet(PDF) - Micro Analog systems
Part Name
Description
MFG CO.
MAS9138A1SD06
Micro Analog systems
'MAS9138A1SD06' PDF : 10 Pages View PDF
DA9138.005
12 April, 2006
APPLICATION INFORMATION
Synchronous modem with asynchronous interface
The MAS9138 is intended for applications where an asynchronous and synchronous data source must be linked
together. A typical case appears in a data modem where the terminal interface of the modem has been specified to
be asynchronous but the modem data pump operates in a synchronous fashion.
RS232C
INTERFACE
MAS9138
MODEM CIRCUITS
TXD
RXD
TDI
RDO
TDO
TXC
RDI
RXC
PHONE LINE
Synchronous serial interface with uP interface
Another application is a synchronous serial interface for uP which uses UART as a data source. The concept is
illustrated below.
UART
MAS9138
T TL /V .2 8
RS-232-C
V.24
TxD
RDI
RxD
uP-INTERFACE
TDO
RxC
TxC
7 (10)
Share Link: 