Radio Transmitter & Receiver Modules
Connection Diagram / Dimensions QFMR6 Receiver
T6 / R6
4.5 mm
49.05 mm
CE
17 mm
R6
(Pin spacings 2.54 mm)
1.5mm
31 mm
1
2
3 4
5 6
7
Pin Descriptions
RF IN (pin 1)
50Ω RF input from antenna, connect using shortest possible route. This input is isolated from the internal
circuit using the air gap of the front end SAW RF filter
RF GND (pin 2)
RF ground connection, preferable connected to a solid plane.
RSSI / Carrier Detect (pin 3)
The Received Signal Strength Indicator provides a DC output voltage proportional to the RF input signal. The
amplitude of the RSSI voltage increases with increasing RF signal strength. A simple transistor interface can
yield a carrier detect logic output.
GND (pin 4)
Connect to power supply ground.
V
CC
(pin 5)
+Ve supply pin. Operation from a 5V supply able to source6mA at less than V
p-p
ripple.
AF (pin 6)
Audio frequency output. (max 40uA source)
DATA OUT (pin 7)
CMOS compatible output. This may be used to drive external decoders. To reduce any noise on this output
add a 56pF cap from this pin to GND.
Ordering Information:
Part No
R6-8684-20
R6-8684-64
R6-86985
R6-915-20
R6-915-64
Description
SIL Receiver 868.40 MHz 20Kbps Data rate
SIL Receiver 868.40 MHz 64Kbps Data rate
SIL Receiver 869.85 MHz
SIL Receiver 915 MHz
20Kbps Data rate
SIL Receiver 915 MHz
64Kbps Data rate
DS306-3
May 03
2003
REG No 277 4001, England.
Page 4
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