CIRCUIT DESIGN, INC
.
CDP-02N UHF Synthesized Radio Data Module Operation Guide
5
indicates the power of the incoming RF signal.
The AF output is the analog output from the FM detector circuit. Voltage level, DC-offset and
AF noise depend directly on the receiver-input signal
.
This output can be connected to an
MSK decoder circuit if a transmitter with additional MSK encoder is used
*1
. For simple FSK
modulation of digital data, the DATA OUT terminal can be used. It contains a band-pass filter
and comparator with digital output (open collector).
To achieve the high signal sensitivity and short receiver response time no internal muting is
applied. Valid data signals can be detected by utilizing the RSSI output.
*1
The data input of the CDP-TX-02N(CDP-TX-02AN) is for digital signal. In case the output of the
MSK encoder is inputted to the DATA IN of the CDP-TX-02N(CDP-TX02AN), please make sure to
input the digitatized signal to the DATAIN by saturating the signal beforehand.
