CMX989 Datasheet, PDF (5/31 Pages) CML Microcircuits – CDPD MAC and Data Pump Processor

CDPD MAC and Data Pump Processor
CMX989
Package
E1
Pin No.
21
22
23
24
25
26
27
28
Signal
Description
Name
TXOP2
TXOP1
TXRFEN
A2
A1
A0
CSN
V_DD
Type
O/P
O/P
O/P
I/P
I/P
I/P
I/P
Power
) Two-point modulator signal output from the
) device. TXOP2 is in-phase with TXOP1.
)
Tx RF enable. Control line to enable an external
RF power amplifier stage. This signal is also
available via the parallel µController interface.
)
) Three logic level register select inputs.
)
Chip Select. An active low logic level input to the
device, used to enable a data read or write
operation.
The positive supply rail. Levels and voltages are
dependent upon this supply. This pin should be
decoupled to V_SS by a capacitor.
Notes: I/P
= Input
O/P = Output
BI
= Bidirectional 3-state Input/Output
NC = No Connection
© 2001 Consumer Microcircuits Limited
5
D/989/2