DS015 - RF Solutions

AM SUPERHETERODYNE RECEIVER AM-RRQ3-XXXCTC
AM-RRQ8-433CTC
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Compact Hybrid Module.
Ceramic Substrate
Very High Frequency Stability
Receiving Range Up To 100 Metres.
CMOS/TTL Compatible Output.
Single Supply Voltage 5V.
Compatible with R.F. Solutions AM Transmitters.
Compliant to ETS300-220
RRQ3 Version
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Sleep Mode
Sensitivity Typically –107 dBm
315 / 433 / 868MHz Available
Protective Conformal Coating
RRQ8 Version
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Front End SAW Filter Option
Sensitivity Typically –113 dBm
Improved Image Rejection
Description
The RF Solutions AM Superheterodyne Receivers are compact modules, which can be used to capture
undecoded data from any equivalent AM Transmitter, such as R.F. Solutions AM-RT40 range of
transmitters. (See AM Transmitter datasheet).
Receivers are manufactured on a ceramic substrate, the RRQ3 incorporates an LC Filter, pre amplifier front
end and PLL Synthesizer for high sensitivity and reduced EMC emissions. The RRQ8 incorporates an
optional SAW Filter to provide a further increase in the module sensitivity. The modules show a very high
frequency stability over a wide operating temperature even when subjected to mechanical vibrations or
manual handling offering a very cost effective solution.
Block diagram
Vcc
Input
FILTER
MIXER
Vcc
IF
FILTER
AM
DEMODULATOR
COMPARATOR
O/P
GND
DS015-5
Jan 12
PLL
Synthesizer
2012 REG No 277 4001, England.
GND
GND
Page 1
AM SUPERHETERODYNE RECEIVER AM-RRQ3-XXXCTC
AM-RRQ8-433CTC
AM-RRQ3 Mechanical Dimensions
38.1mm
4mm
Component Side
1
3
7
Notes
Pins on 0.1" pitch
Pin Dims :0.25 x 0.50mm
14.5mm
11
15
1mm
2.54mm
Pin Descriptions
RSSI Output
RRQ3
Pin No
1
2
3
7
11
12
13
14
RF In (dBm)
-120
-110
-100
-90
-80
-70
-60
-50
-40
Pin Name
+Vcc
GND
DATA IN (Antenna)
GND
GND
+Vcc
RSSI (output)
DATA OUT
PD (Power Down input)
0 = Standby Mode (Istandby100nA
max)
5V = Normal Operation
15
RSSI (V)
1.20
1.32
1.50
1.78
2.06
2.35
2.62
2.72
2.75
Electrical Characteristics
Ambient temperature
= 25oC.
Electrical Characteristics
Min
Typical
Max
Dimension
Supply Voltage (Vcc)
Supply Current
Receiver Frequency 315MHz variants
Receiver Frequency 433MHz variants
Receiver Frequency 868MHz variants
Low Level Output Voltage (I=10uA)
High Level Output Voltage (I=200uA)
Operating Temperature Range
R.F Sensitivity (100% AM) at 315 / 433MHz
R.F Sensitivity (100% AM) at 868MHz
3dB Bandwidth
Max Data Rate
Level of Emitted Spectrum
4.5
5
5
315
433.92
868.35
5.5
6
V
mA
MHz
MHz
MHz
V
V
o
C
dBm
dBm
KHz
KHz
dBm
DS015-5
Jan 12
0.8
Vcc-1
-25
2012 REG No 277 4001, England.
+80
-106
-101
+/-150
4.8
-70
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AM SUPERHETERODYNE RECEIVER AM-RRQ3-XXXCTC
AM-RRQ8-433CTC
AM-RRQ8 Mechanical Dimensions
14.5
36.5
Notes
All dims in mm
Pins on 2.54 pitch
Pin Dia 0.5mm
All Dims +/-0.5mm
AM-RRQ8-433CTC
1 2
4
5
6 7
1
3
3
CL
Pin Descriptions
RRQ8
Pin No
1
2
3
4
5
6
7
Pin Name
GND
DATA IN (Antenna)
GND
AGC Control(0=ON, 1=OFF)
RSSI (output)
DATA OUT
+Vcc
Electrical Characteristics
Ambient temperature
= 25oC.
Electrical Characteristics
Min
Typical
Max
Dimension
Supply Voltage (Vcc)
Supply Current
Receiver Frequency 433MHz variants
Low Level Output Voltage (I=10uA)
High Level Output Voltage (I=200uA)
Operating Temperature Range
R.F Sensitivity (100% AM)
3dB Bandwidth
Max Data Rate
Level of Emitted Spectrum
4.5
5
7.5
433.92
5.5
9
V
mA
MHz
V
V
o
C
dBm
KHz
KHz
dBm
0.8
Vcc-1
-25
-110
+80
-113
+/-150
4.8
-60
Automatic Gain control (AGC)
Applying a Logic Low into this pin activates the internal AGC circuit. Using AGC enables the receiver
module to operate with maximum efficiency when receiving an RF data input within the -114 to 0dBm range.
Applying a logic high into this pin disables the internal AGC circuit and the receiver module is forced to
maximum sensitivity regardless of the input signal level. If the RF data input signal is below the threshold for
valid data, then the module will operate within its linear region. If the RF data input is a higher level then the
receiver will operate in a saturated mode. This can be useful to determine if the transmitter is within close
proximity to the receiver module.
DS015-5
Jan 12
2012 REG No 277 4001, England.
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AM SUPERHETERODYNE RECEIVER AM-RRQ3-XXXCTC
AM-RRQ8-433CTC
Received Signal Strength Indication (RSSI)
Fig 1 shows the RSSI output voltage relative to the received RF data input level.
This characteristic was generated with a modulated AM signal with 99% modulation of a 1KHz square wave.
The RSSI pin also had a 10uF capacitor to GND.
The RSSI output is linear where the RF Data input is upto -40dBm after which it flattens off at approx 2.2V
(saturation level).
In the linear region the RSSI output is proportional to RF Data input power and may be used as a measure of
received signal strength. When the RSSI output flattens it no longer represents a output proportional to the
RF Data input. This region of the curve can be used to confirm the close proximity of the transmitter
DS015-5
Jan 12
2012 REG No 277 4001, England.
Page 4
AM SUPERHETERODYNE RECEIVER AM-RRQ3-XXXCTC
AM-RRQ8-433CTC
Application Circuit
Vcc
15KΩ
Ω
1KΩ
Ω
13
RRQ5 RF Rece ive r
12 3
7
11
L
15
Status
LED
Option
Link
14
4
17
Sleep Vcc Vcc
OP1
12
LKIN
OP2
M
O/P 1
18
O/P 2
1
O/P 3
OP3
OP4
10
LRN
RF600D
1KΩ
Ω
LB
SD1
Learn
Switch
9
ECLK
IN
2
O/P 4
3
Transmitter
Low Battery
Serial Data
Output
11
7
GND
5
22KΩ
Ω
Notes
Do not use Veroboad or Stripboard to mount the module!
Ensure the supply is stable (ideally <10mVpk ripple).
Keep the module away from other EMF generating components.
Mount the antenna as close to the module as possible.
Part numbering
AM-RRQ3-315
AM-RRQ3-433CTC
AM-RRQ3-868
AM-RRQ8-433
Receiver Module 315MHz
Receiver Module 433MHz (conformally Coated)
Receiver Module 868MHz
Receiver Module, SAW Filter, 433MHz
Should you require further assistance, please call:
R. F. Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
South Street, Lewes,
E Sussex, BN8 6JL. England.
Tel +44 (0)1273 898 000. Fax +44 (0)1273 480 661.
Email sales@rfsolutions.co.uk
http://www.rfsolutions.co.uk
RF Solutions is a member of the Low Power Radio Association.
Information contained in this document is believed to be accurate , however no representation or warranty is given and no liability is assumed by R.F. Solutions Ltd. with respect to the accuracy of
such information. Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd.
DS015-5
Jan 12
2012 REG No 277 4001, England.
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