DS070 - RF Solutions

FM TRANSMITTER & RECEIVER
HYBRID MODULES.
FM-RTFQ SERIES
FM-RRFQ SERIES
.
•
•
•
•
•
•
FM Radio Transmitters & Receivers
•
•
•
•
Very Stable Operating Frequency
Available as 433MHz
Transmit Range up to 250m
Miniature Packages
Data Rate up to 9.6Kbps
No Adjustable Components
RTFQ1P
0
Operates from –0 to +70 C
EMC Compliant for use in Europe
FCC Compliant for use in USA
Transmitter
•
•
3V Supply Voltage
SIL, DIL or SMT Packages available
Receiver
•
•
•
•
•
PLL XTAL Design
RTFQ2
CMOS/TTL Output
RSSI Output
Standby Mode (max 100nA)
5V Supply Voltage
Applications
•
•
•
•
•
•
Wireless Security Systems
Car Alarms
Remote Gate Controls
RRFQ1P
Remote Sensing
Data Capture
Sensor Reporting
Description
These miniature RF modules provide a cost effective high performance FM Radio data link, at, 433.92MHz.
The modules uses no adjustable components ensuring very reliable operation.
This transmitter and receiver pair enables the simple implementation of a data link at distances up to 75 metres
in-building and 250 metres open ground.
The modules have been approved for operation with Europe and USA within FCC part15.
These modules will suit one-to-one and multi-node wireless links in applications including car and building
security, EPOS and inventory tracking, remote industrial process monitoring and computer networking.
Because of their small size and low power requirements both modules are ideal for use in portable, batterypowered applications such as hand-held terminals.
DS070-3 Jan12
©2012 Reg. No. 227 4001, England
Page 1
FM-RTFQ SERIES
FM-RRFQ SERIES
FM TRANSMITTER & RECEIVER
HYBRID MODULES.
Transmitters
There are three versions of transmitter:
RTFQ1:
A dual in line package operating at 3.3V. This provides the most rugged mechanical
fixing to the host PCB. Power down mode is also available.
RTFQ1 SM:
A dual in line surface mount package operating at 3.3V. This provides the quickest and
most efficient mechanical fixing to the host PCB. Currently only available in 433MHz.
RTFQ2:
A dual in line package operating at 3.3V. This provides the most rugged mechanical
fixing to the host PCB. Power down mode is also available.
Transmitter Block Diagram
In
XTAL
Oscillator
XTAL
PLL
Synthesizer
Power Amp
Out
En
Part Numbering
Part Number
FM-RTFQ1-433P
FM-RTFQ1-433PSO
FM-RTFQ2-433
Description
DIL FM Transmitter Module 433.92 MHz
SMT FM Transmitter Module 433.92 MHz
SIL FM Transmitter Module 433.92 MHz
Receiver Block Diagram
Vcc
Vcc
In
Pre Amp
Filter
Mixer
10.7MHz
IF Filter
FM
Demodulator
Comparator
Out
GND
PLL
Synthesizer
GND
GND
Part Numbering
Part Number
FM-RRFQ1-433
DS070-3 Jan12
Description
SIL FM Receiver Module 433.92 MHz
©2012 Reg. No. 227 4001, England
Page 2
FM-RTFQ SERIES
FM-RRFQ SERIES
FM TRANSMITTER & RECEIVER
HYBRID MODULES.
RTFQ1 Mechanical Dimensions
20.32mm
PCB Layout Requirements
1
5.08mm
2
3
2.54mm
Module Thickness 2mm
6
Top View
(Components
Underneath)
11.43mm
5
4
Pins on "0.1 pitch
Pin Dimensions :
0.25mm x 0.50mm
20mm
RTFQ1 SMT Dimensions
20.5mm
1.91mm
1
5.08mm
2.30mm
2.54mm
1.2mm
19.10mm
1.91mm
2
3
Top View
(Components
Underneath)
6
11.5mm
Module Thickness 0.8mm
5
4
RTFQ2 Mechanical Dimensions
PCB Layout Requirements
30.48mm
10.67mm
Pins on "0.1 pitch
RTFQ2
1mm
20.32mm
2.54
2.54 spacing
Module Thickness 2mm
1 2
Pin Dimensions :
0.25mm x 0.50mm
3 4 5
Pin Description
RTFQ1
1
2
3
4
5
6
RTFQ2
N/A
5
1
3
4
2
Name
En
IN
GND
Vcc
GND
EA
Description
Enable (active high)
Data input
Ground, Connect to RF earth return path
Supply Voltage
Ground, Connect to RF earth return path
External Antenna
Technical Specifications
Electrical Characteristics
Supply Voltage RTFQ1
Supply Current
Standby Current (IN = EN = Low)
Frequency
RF Output into 50Ω (Vcc=3.3V)
Initial Frequency Accuracy
FM Deviation
Harmonic Spurious Emissions
Input High Voltage RTFQ1
Input High Voltage RTFQ2
Power up Time (En to full RF)
Power up Time (Power on to full RF)
Max Data Rate
Operating Temperature
DS070-3 Jan12
MIN
2.1
-35
25
1.5
1.5
-0
©2012 Reg. No. 227 4001, England
TYPICAL
3.3
7
433.92
+5 / +5 / +1
0
30
-50
MAX
4.00
8
100
+35
35
Vcc
5.5
1
5
9.6
+70
Page 3
DIMENSION
V
mA
nA
MHz
dBm
KHz
KHz
dBc
V
V
mS
mS
KHz
°C
FM-RTFQ SERIES
FM-RRFQ SERIES
FM TRANSMITTER & RECEIVER
HYBRID MODULES.
RRFQ1 Mechanical Details
38.1mm
2.40mm
Component Side
1
3
7
11
18.1mm
15
Pin Dimensions :
0.25mm x 0.50mm
2.54mm
Pin Description
RRFQ1
RSSI Output*
RF In (dBm)
RSSI (V)
1
+Vcc
Pin Description
-120
1.20
2, 7,11
GND
-110
1.32
3
Data In (Antenna)
-100
1.50
12
NC
-90
1.78
13
Received Signal Strength Output
-80
2.06
N/A
AF Output
-70
2.35
14
Data Out
-60
2.62
15
Power Down
-50
2.72
-40
2.75
0V = Standby
5V = Operating
RSSI Output
The RSSI provides a DC Voltage proportional to the peak value of the receive data signal. This output can be
used as an indicator for the received signal strength to use in wake-up circuits etc.
An RC circuit is normally used to provide the timing for the RSSI signal. The modules have a 10nF capacitor
internally connected to GND, therefore a pull down resistor (to GND) connected to the RSSI pin may be used to
generate a simple RC network time constant for the RSSI signal output.
Please note that the maximum output current is typically 950µA, the discharge current is lower than 2µA
DS070-3 Jan12
©2012 Reg. No. 227 4001, England
Page 4
FM-RTFQ SERIES
FM-RRFQ SERIES
FM TRANSMITTER & RECEIVER
HYBRID MODULES.
Technical Specifications
Electrical Characteristics
Supply Voltage (Vcc)
Supply Current (Operating)
Supply Current (Standby)
Min
4.5
Typical
5
5.7
Max
5.5
6.8
100
315.00
433.92
868.35
Receiver Frequency
R.F Sensitivity (100% AM)
315 ,433MHZ versions
868MHz versions
3dB Bandwidth
Data Rate
RRFQ1
RRFQ2
Turn on Time
Turn on Time
Level of Emitted Spectrum
Low Level Output Voltage
High Level Output Voltage
RSSI Output
Operating Temperature Range
dBm
KHz
9,600
4,800
5
8
-70
0.8
Vcc-1
0.95
-25
Notes
MHz
-103
-100
+/-150
300
300
Dimension
V
mA
nA
+80
Hz
mSecs
mSecs
dBm
V
V
mA
o
C
1
2
I = 200uA
I = 200uA
Notes
1. Time from PD pin going high to stable data. (RRFQ1 only)
2. Time from Power ON to stable data.
Prototyping Hints
It is essential when building any Low Power Radio System that you have a ‘clean’ DC power source. Typically
the ripple voltage should be less than 10mV Peak to Peak. Normally a 470uF decoupling capacitor is sufficient
de-coupling for an AC derived DC power source. Small capacitors of 10-100nF can also be used across the
power supply to filter high frequency noise.
Never place a Transmitter or Receiver directly into Vero-Board or any similar prototyping board. This will
severely restrict the range. Rather, use small lengths of wire from the prototyping board to the pins of the
Transmitter or Receiver.
A useful antenna, for testing purposes, for both the Transmitter and Receiver on 433MHz is to use a piece of
wire 17.3cm long (23.8cm at 315MHz) soldered directly to the antenna pin.
Data should be encoded before it is transmitted over a wireless link to ensure reliability and reduce the effect of
interference and cross talk. A range of encoders IC’s are available from RF Solutions, please refer to the RF
Solutions website for further information.
DS070-3 Jan12
©2012 Reg. No. 227 4001, England
Page 5
FM-RTFQ SERIES
FM-RRFQ SERIES
FM TRANSMITTER & RECEIVER
HYBRID MODULES.
Typical Application
The following circuits show a remote control system with ‘self learning feature’. Please refer to datasheet
DS600 for more information.
Transmitter Circuit
3.3V
Antenna
3.3V
SW1-4
1
2
3
4
A0
Vcc
A1
LED
A2
DATA
A3
GND
2K2
8
1
7
6
5
ANT
2
IN
3
GND
BC848
10K
EN
6
5
GND
4
Vcc
RTFQ1-XXX
RF600E
Receiver Circuit
Vcc
15KΩ
Ω
1KΩ
Ω
13
L
Status
LED
FM -RRFQ1
12 3
7
11
Option
Link
15
12
14
4
17
Sleep Vcc Vcc OP1
O/P 1
18
LKIN
O/P 2
OP2
M
1
O/P 3
OP3
OP4
10
LRN
RF600D
1KΩ
Ω
LB
SD1
Learn
Switch
2
O/P 4
3
Transmitter
Low Battery
Serial Data
Output
11
Vcc
9
ECLK
IN
7
22KΩ
Ω
GND
5
For more information or general enquiries, please contact:
RF 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: [email protected]
http://www.rfsolutions.co.uk
RF Solutions is a member of the Low Power Radio Association
All Trademarks acknowledged and remain the property of the respected owners
Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability 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.
DS070-3 Jan12
©2012 Reg. No. 227 4001, England
Page 6