V.23 Transmit Modulator
CMX654
Delay to reliable data at TXOP after ZP to Tx mode change
Data Retiming Disabled (reference Figure 5)
Tx Data Delay (TXD to TXOP)
Data Retiming Enabled (reference Figure 6)
Td = Internal CMX654 delay
Tchi = CLK High time
Tr = RDY low to CLK going low
Ts = Data Set-up time
-
-
20.0
-
ms
ms
-
0.1
-
-
-
-
-
-
1.0
-
800
-
-
µs
µs
µs
µs
µs
1.0
-
1.0
1.0
Th = Data Hold time
Note: M0 and M1 are preset and stable. FLO and FHI are the two FSK signalling frequencies.
Figure 5 TXD to TXOP Delay Time
Figure 6 FSK Operation with Tx Data Retiming
ã 1998 Consumer Microcircuits Limited
11
D/654/3
CMLMICRO [ CML MICROCIRCUITS ]
