V.23 Compatible Modem
FX604
1.2
Block Diagram
Figure 1 Block Diagram
1.3
Signal List
FX604
Signal
Description
D4/P3
Pin No.
Name
Type
O/P
I/P
1
2
3
XTALN
XTAL/CLOCK
M0
The output of the on-chip Xtal oscillator inverter.
The input to the on-chip Xtal oscillator inverter.
I/P
A logic level input for setting the mode of the
device. See section 1.5.2.
4
M1
I/P
A logic level input for setting the mode of the
device. See section 1.5.2.
5
6
RXIN
I/P
Input to the Rx input amplifier.
RXFB
O/P
Output of the Rx input amplifier, and the input to
the Rx filter.
7
8
TXOP
VSS
O/P
The output of the FSK generator.
Power The negative supply rail (ground).
ã 1996 Consumer Microcircuits Limited
3
D/604/3
CMLMICRO [ CML MICROCIRCUITS ]
