Wireless Modem Data Pump
FX909A
Package
D2/D5/P4
Signal
Description
Pin No.
20
Name
Type
O/P
TXOP
The Tx signal output from the modem.
A bias line for the internal circuitry, held at
21
V
BIAS
O/P
½ V . This pin must be decoupled to V by a
DD
SS
capacitor mounted close to the device pins.
22
23
RXIN
I/P
The input to the Rx input amplifier.
RXFB
O/P
The output of the Rx input amplifier and the input
to the Rx filter.
24
V
DD
Power
The positive supply rail. Levels and voltages are
dependent upon this supply. This pin should be
decoupled to V by a capacitor.
SS
Notes: I/P
=
=
=
Input
Output
Bidirectional
O/P
BI
ã 1996 Consumer Microcircuits Limited
5
D/909A/4
CMLMICRO [ CML MICROCIRCUITS ]
