RDF1-433F RF Solutions, RDF1-433F Datasheet - Page 4

• Manufacturer Part Number: RDF1-433F
• Description: RECEIVER/DECODER 433MHZ RF
• Manufacturer: RF Solutions

Specifications of RDF1-433F

• Frequency: 433MHz
• Modulation Or Protocol: FM, FSK
• Data Interface: PCB, Through Hole
• Antenna Connector: Through Hole
• Voltage - Supply: 5V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SIP Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Applications: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Current - Receiving: -
• Other names: RDF1

DS RDF-1b March ‘09
Closed
Closed
Link1
Open
Open
System and Functional operation
Digital Data Outputs
Each RF Solutions transmitter contains a secure serial identity. When a switch is pressed,
the transmitter emits a unique secure RF signal. The Receiver can learn this signal and
allocate it to any of its output(s).
Any transmitter switch may be paired to one or many of a receiver’s outputs,
Many transmitters switches may be paired to a single receiver output.
This enables
The only limitation is that each receiver has a maximum capacity of 40 pairings, (can be
from the same or any number of transmitters).
Hint: the same transmitter may be taught to any number of receivers to create ‘master
keys’.
Learn: Learn Mode activation is achieved by pulling this input to GND briefly
Paring Procedure (Learning a Transmitter Switch to RDF1 digital output)
(as application circuit)
1. Select the receiver output to learn onto:
2. Operate the Transmitter button that you want to learn to the selected RDF1 output.
3. The Learn LED will then illuminate, operate the same transmitter button again.
4. The Learn LED will then flash to indicate learning is complete.
Erase Mode: Erase Mode is achieved by pulling this input to GND for >8 seconds. This
causes the internal EEPROM to be erased of all pre-learnt Transmitter pairings.
Digital Output Configuration: Momentary or Latching
These high impedance inputs are used to set the digital outputs to momentary or latched
actions
Outputs
Mom: This output is valid for the duration of valid key press of the transmitter switch
Latch: This output changes state on each valid transmitter switch press.
Outputs are digital CMOS/TTL (PIC Micro) with a series 220Ω protection resistor.
Outputs are all normally Low, active High. Each can sink/source 20/20mA.
Link Positions
One transmitter switch to control many receivers outputs, or,
Many transmitters switches to control one receiver output
a. Briefly operate the RDF1 Learn switch once
b. The Learn LED will flash once to indicate output 1 is selected
c. After the LED stops flashing, press the Learn switch again to select the next
d. Repeat step c until the required output is selected.
output channel.
Closed
Closed
Link2
Open
Open
RF R
©2008 REG No 277 4001, England.
ECEIVER
O/P 1
Latch
Mom
Mom
Mom
D
ECODER
O/P 2
Latch
Latch
Mom
Mom
Digital Outputs
Page 4
O/P 3
Latch
Latch
Latch
Mom
O/P 4
Latch
Latch
Latch
Mom
RDF1