Dual SPM/Security Detector/Generator
CMX641A
(iii)
The outputs can be set to a high impedance state for device multiplexing.
OP ENABLEN
OP SELECT
CH1 & CH2
OP FORMAT
Packet Mode
0
0
1
0
1
X
Tone Follower Mode
High Z
Table 1 Selection of Output Format via OP ENABLEN and OP SELECT pins
1.5.2.1 Fixed Bandwidth Operating State (ENHANCED FEATURES pin = logic ‘0’ or Open Circuit)
This state is selected by leaving pin 13 open circuit. In this state, the CMX641 has full pin, function and
software compatibility with the FX641 and MX641. There are two operating modes: Controlled and
Fixed Sensitivity.
ã 2002 Consumer Microcircuits Limited
11
D/641A/5
CMLMICRO [ CML MICROCIRCUITS ]
