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MRX-001
UHF AM RECEIVER MODULE
Pin Detail
Pin Number Pin
DIP Surface Mount Name
9 1 Ant
Description
This is the receive RF input, internally ac-coupled. Connect this
pin to the receive antenna.
4,5,6,7,8
1,2,3,13,14
18
17
16
15
12
11
10
2,3,4,5,6
7,8,9,14,15
10
11
12
13
16
17
18
Gnd Ground
N/C No Connect
DO Output data pin. CMOS level compatible.
SWEN Controls the operating mode of the receiver. When high, the
receiver is in sweep mode.When low, the module operates as a
conventional single-conversion superheterodyne receiver (fixed
mode) - this is the recommended mode of operation. This pin is
internally pulled-up to VCC.
SEL1 Programs desired Demodulator Filter Bandwidth. This pin is
internally pulled-up to VCC. See Table 1.
SEL0 Programs desired Demodulator Filter Bandwidth. This pin is
internally pulled-up to VCC. See Table 1.
REG-EN In a regulated module, this pin powers on the module with a 2-
16V supply input. Pulling this pin low disables module. In a non-
regulated module, this is a no connect.
+5V In a regulated module, this is a 5V output from the onboard
regulator when REG-EN is high (2-16V). In a non-regulated
module, this is the 4.75V to 5.5V power supply input.
+VIN In a regulated module, this is the power supply pin of the module.
Input 5-16V to power a regulated module. In a non-regulated
module, this is a no connect.
Table 1
Programmable Bandwidth Configurations
SEL0 SEL1 Bandwidth (bps)
0 0 600
1 0 1200
0 1 2400
1 1 4800
*Note: 1=VCC, 0=GND
Typical Application Schematic
MRX-001
1
2
3
4
5
6
7
8
9
N/C
N/C
N/C
GND
GND
GND
GND
GND
ANT
DO
SWEN
SEL1
SEL0
N/C
N/C
REG-EN
+5V
+VIN
18
17
16
15
14
13
12
11
10
Data Out to MCU
GND
GND
+5V
+2V-16V In
+5V Output
+5V-16V In
MCU
MRX-001, 433.92MHz Fixed, 1200bps Bandwidth
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