RS-MK-X2010 [ETC]
High Integrity FM Transceiver; 高完整性FM收发器
| 型号： | RS-MK-X2010 |
| 厂家： | 
ETC |
| 描述： | High Integrity FM Transceiver |
| 文件： | 总7页 (文件大小：242K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
High Integrity FM Transceiver
Features
RS-MK-X2010
·
·
Operation on 434.075, 868.40 and 914.5 MHz
X2011 version includes integrated pcb loop
antenna (434 & 868 MHz versions)
·
·
Double RF filtering = High Reliability RF Link
Data rates to 20 kbps (Wide-band 64 kbps
version available to order)
·
·
·
·
·
·
·
-112 dBm receiver sensitivity (434 version)
CD and RSSI outputs
Crystal stabilised accurate RF
Hence narrower BW filter utilised
Results in over 300m range
EN 300 220-1, 300 683 & FCC compliant
Immune to Tetra and High power Radio Amateur
Repeater Stations
Applications
·
EPOS TERMINALS
·
REMOTE TELEMETRY & TELECOMMAND
·
·
REMOTE METER READING
DOMESTIC AND COMERCIAL SECURITY
General Description
The WP-MK-X2010 radio transceiver module was
designed to provide reliable wireless operation at
moderate data rates for use throughout the world. Its
unique features of narrower RF channel bandwidths
and hence high interference rejection capability at
The transmitter section uses a PLL design that
utilises a highly stable and accurate reference
crystal oscillator. This results in a RF transmission
tightly controlled in its frequency spread and over
its operating temperature range. This is exploited in
SAW module prices make the X2010 the ideal choice the receiver design.
for next generation applications.
The receiver section uses a single conversion
Available for operation at the major frequency
allocations world-wide in the same package, these
modules have been designed to provide a reliable
wire free link for the next century, accounting for the
increased traffic from other legal users of the radio
spectrum.
super-het design, again using PLL technology.
Hence narrower bandwidth RF filters are utilised
which result in superior rejection of interference as
well as providing good receiver sensitivity and
hence range.
Page 1 of 7
High Integrity FM Transceiver
RS-MK-X2010
Absolute Maximum Ratings: Receiver
°
°
Operating temperature:
Storage temperature:
Supply Voltage
Data Input:
-20 C to +55 C
°
°
-40 C to +100 C
6V
Vcc + 0,3v
0 dBm
RF Input
Electrical Characteristics:
°
Performance data measured at 20 C and +5 volt supply and RF = 434,075 MHz
pin
min.
typ.
max.
units
notes
DC LEVELS
Supply voltage
17
17
17
4,5
5
7
8
5,5
V
mA
mA
uA
V
Supply current (receiver enabled)
Supply current (transmitter enabled)
Leakege current with Vcc connected
Data input/output high
1
Vcc
12,14 0,7xVcc
Data input/output low
12,14
13
0
0,0xVcc
V
RF
Receiver sensitivity (12 dB SINAD on AF
output)
-112
dBm
Image rejection
RF power out (transmitter)
FM Deviation
Initial frequency accuracy
Overall frequency accuracy
Max RF input to receiver
50
1
+/-10
100
+/-2
0
dB
mW
KHz
Hz
KHz
dBm
±
E.M.C.
Spurious responses upto 1GHz
LO leakage, conducted
LO leakage, radiated
<-36
<60
<60
dB
dBm
dBm
DYNAMIC TIMING
RX enable to valid RSSI / CD
RX enable to stable receiver data out
TX enable to full RF out
Minimum data pulse width
Data Bit rate
mS
mS
mS
uS
5
5
50
50
20000
bps
2
Notes
1)
2)
Over full operating temperature range
1 Hz = 2 bps
Page 2 of 7
High Integrity FM Transceiver
RS-MK-X2010
Mechanical description
8.5
2.0
0.8
5.0
1.3
30.4
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
Pin 1
22.0
33.0
Notes
·
·
·
·
Recommended PCB hole diameter to accommodate the connecting pins = 1.2mm
All dimensions are in mm
Distance between each connecting pin = 2.54mm
Pins 4,5,6 and 7 are internally floating not connected to anything
Page 3 of 7
High Integrity FM Transceiver
RS-MK-X2010
Mechanical description
Loop Antenna
3
48
1
18
17
16
15
14
13
12
11
10
23
7
8
9
33
Notes
·
·
·
All dimensions are in mm
Recommended PCB hole diameter to accommodate the connecting pins = 1.2mm
Distance between each connecting pin = 2.54mm
Page 4 of 7
High Integrity FM Transceiver
RS-MK-X2010
Pin Functional description WP-MK-X2010 & WP-MK-X2011
Pin No.
Description
RF Ground
Antenna
Details
For best results, these pins should be connected to the ground plane
against which the antenna radiates
Nominal 50 ohm input/output impedance capacitively isolated from
internal circuit. See application notes for antenna examples
Supply ground points
1 & 3
2
9, 10, 18
4, 5, 6 & 7
Ground
NC
Not connected internally
7 (WP-MK-X2011) Gnd
RF gnd only on X2011
Receiver signal strength indicator
8
RSSI
CD
DC voltage proportional to RF signal strength being received
Digital Carrier Detect Output – Active Low
Receiver digital data output (CMOS logic out) representing true data as
supplied to the transmitter
11
12
13
14
RxD
AF
Audio Frequency Output
Data input to the transmitter can be directly interfaced to CMOS logic
drive operating on the same supply voltage as the transceiver
Active Low
Applying Vcc disables the transmitter
Active Low
Applying Vcc places the receiver in sleep mode
Supply voltage range from 4.5 to 5.5volts. Note that module is not
reverse polarity protected
TxD
15
16
17
Tx Enable
Rx Enable
Vcc
State Table
Tx (Pin 15) Rx (Pin 16)
Mode
1
1
0
1
0
Power down mode. Supply current < 1uA
Receiver only enabled. Data, AF, CD and RSSI outputs valid
Transmitter only enabled. Tx data input valid
1
0
0
Tx and Rx on. Avoid this mode as it will eventually destroy the module
Page 5 of 7
High Integrity FM Transceiver
RS-MK-X2010
Application Information
RSSI Values
The RSSI output provides a dc voltage that is
proportional to the RF signal strength picked up on the
antenna (pin 2) port of the module.
Antenna Design
The design and positioning of the antenna is as
crucial as the module performance itself in achieving
a good wireless system range. The following will
assist the designer in maximising system
performance.
The table below gives typical values of RSSI for varying
degrees of RF signal strength applied.
RF Input (dBm)
RSSI (V)
-105
-100
-90
-80
-70
-60
-50
-40
-30
-20
0,82
0,88
1,12
1,43
1,75
2,06
2,36
2,57
2,6
The antenna should be kept as far away from
sources of electrical interference as physically
possible. If necessary, additional power line
decoupling capacitors should be placed close to the
module.
The antenna ‘hot end’ should be kept clear of any
objects, especially any metal as this can severely
restrict the efficiency of the antenna to receive power.
Any earth planes restricting the radiation path to the
antenna will also have the same effect.
2,6
Best range is achieved with either a straight piece of
wire, rod or PCB track @ ¼ wavelength (15.5cm @
433.92MHz). Further range may be achieved if the ¼
wave antenna is placed perpendicular in the middle
of a solid earth plane measuring at least 16cm radius.
In this case, the antenna should be connected to the
module via some 50 ohm characteristic impedance
coax.
Helical Antenna
RF
34mm @ 433MHz
17 turns equally spaced
Æ
= 5mm (inside)
Whip Antenna
RF
15.5cm @ 433MHz
Figure 2: Antenna Configurations To Be Used
With The WP-MK-X2010
Page 6 of 7
High Integrity FM Transceiver
RS-MK-X2010
Ordering Information
Standard Product;
Part No
Description
WP-MK-X2010-434
WP-MK-X2010-868
WP-MK-X2010-914
WP-MK-X2011-434
WP-MK-X2011-868
434,075 MHz Transceiver
868,40 MHz Transceiver
914,5 MHz Transceiver
Integrated Antenna 434,075 MHz Transceiver
Integrated Antenna 868,40 MHz Transceiver
Note: 868 and 914 versions available November 2001.
Round Solutions Ltd.
Niederlassung Deutschland
Zaunweg 4
D-63303 Dreieich
Tel. 06103 960510
Fax. 06103 960509
www.roundsolutions.com
info@roundsolutions.com
Page 7 of 7
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