CMX269AE2 MX-COM, Inc., CMX269AE2 Datasheet - Page 14

• Manufacturer Part Number: CMX269AE2
• Description: 1200/2400/4800bps MSK modem
• Manufacturer: MX-COM, Inc.

1200/2400/4800bps MSK Modem
6.1.4 Timing
6.1.4.1 1200bps
Notes:
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
1999 MX-COM, Inc.
1. Consider the Xtal/clock tolerance.
2. All TX timings are related to the TX Sync Output.
TX Enable to TX Sync Rise Time
TX Delay, Signal to Disable Time
Data Set-Up Time
Data Hold Time
TX Delay to O/P Time
TX Data Rate Period
RX Data Rate Period
Undetermined State
Internal RX Delay
TX OUTPUT
1200 BPS
TX DATA
ENABLE
SYNC
SIGNAL I/P
Characteristics
TX
TX
1200 BPS
SYNC O/P
CLOCKED
DATA O/P
(1200Hz)
RX
RX
DC = Don't Care
DV = Data Valid
1
0
1
0
OPEN CIRCUIT
www.mxcom.com tel: [phone] 744 5050 fax: [phone]
LOGIC '1'
Figure 9: Receiver Timing Diagram: 1200bps
t
SYNC
Figure 8: Transmitter Timing: 1200bps
t
DSET
DSET
DC
t
RDR
DV
t
ID
t
t
t
t
TXD
t
SYNC
DSET
t
ESET
t
t
RDR
TDR
TxD
t
DH
t
ID
DH
DC
LOGIC '0'
DV
14
Note
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1
t
TDR
DC
Undetermined
State
Min.
DV
LOGIC '1'
800
2.0
2.0
2.0
t
ESET
t
TDR
DC
CMX469A PRELIMINARY INFORMATION
Typ.
416
833
1.2
1.5
LOGIC '0'
Max.
OPEN CIRCUIT
800
865
2.0
Doc. # 20480191.002
Unit
ms
µs
µs
µs
µs
µs
µs
µs
µs