OPERATION GUIDE
.
OG_CDP-RX-07M_v20e Circuit Design, Inc.
5
PIN DESCRIPTION
Common to CDP-RX-07M and CDP-RX-07MP
Pin-No.
Pin-
Name
I/O
Description
Equivalent internal circuit
CN1-1
DATA
O
The data signal output
The terminal is pulled up with a resistor.
The output signal level is 0 to Vcc.
CN1-2
AF
O
The AF signal output terminal
The signal output level is -10.5dBm typ.
(Fm=1 kHz /Fmod=+/-3 kHz, 100 k ohm)
CN1-3
RSSI
O
The receiving level output
The level indicates the strength of RF level.
Note that the output voltage may be reduced
depending on the load impedance to be
connected.
CN1-4
CTRL
I
The power on/off control terminal (Low active).
A voltage of VCC-1.8 V or lower voltage makes
the circuit active and VCC-0.6 V or higher
disables the circuit.
Please control this terminal with an open-
collector or open-drain output.
Note that leakage current will flow if there is a
potential difference between VCC and the
CTRL.
Do not apply a voltage of VCC+0.3 V or higher
to the CTRL pin.
CN1-5
VCC
-
The power supply terminal.
Operates on 3.0 to 14 V.
CN1-6
GND
-
The ground.
Connect to the ground of the control board.
CN2-1
ANT
The antenna terminal Connect an antenna with
50 ohm impedance.
CN2-2
GND
-
The ground terminal for the antenna.
JP1
I
Solder jumpers for frequency channel setting.
This terminal is pulled-up to the internal power
supply.
Ch3 (JP1-Open JP2-Open)
Ch2 (JP1-Short JP2-Open)
Ch1 (JP1-Open JP2-Short)
Ch0 (JP1-Short JP2-Short)
JP2
