RF620T Datasheet, PDF (3/7 Pages) rfsolutions.ltd – SmartRadio Transmitter / Receiver

SmartRadio Transmitter / Receiver
RF620R - Pin Description
RF620T
RF620R
Pin No
1
2
3
7
11
13
14
15
16
17
19
20
21
22
23
24
25
Name Description
Vcc-RF +5V Supply Voltage – RF section.
GND-RF RF Ground.
ANT
Connect Antenna to this input.
GND-RF RF Ground.
GND-AF AF Ground.
RSSI
Received Signal Strength Indicator (RSSI)
O/P-AF Raw Data output from RF receiver (CMOS/TTL signal)
Vcc-digital +5V Supply Voltage – digital section.
GND-digital
MCLR
\Serial Data
AF Ground – digital section.
Pulls Microcontroller into reset if connected to Ground
May be left unconnected if not required (internally tied high)
Serial data output, active low
\RTS
\Learn
&
\LED
spare
/RTS input, active low
Dual function:
Programming Switch input, When grounded places the module into ‘learn’ mode.
External LED output, Indicates data reception, and programming status.
leave unconnected
spare leave unconnected
O/P1
Data Output 1. (has a 220Ω series resistor)
O/P2
Data Output 2. (has a 220Ω series resistor)
RF620R - Typical application circuit
13
RF620R
7
11
15
Vcc
LED drive example
O/P 2
470R
O/P 1
20 22
25
Vcc
1k
Status
LED
GND
RTS input
Serial data output,
CMOS/TTL Level
Learn Switch
DS620-3 Jan ‘07
©2007 Reg. No. 227 4001, ENGLAND
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