Data Sheet

Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Issue 2, 15 December 2009
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
TLC2H/RLC2H
UHF Narrow Band FM Low Cost multi channel radio modules
The TLC2H transmitter RLC2H receiver
modules offer a low power, reliable data
link in an industry-standard pin out
and
footprint.
This
makes
the
TLC2H/RLC2H pair ideally suited to
those low power applications where
existing
wideband
modules
have
insufficient range, or where low cost
multi-channel operation is needed
without
compromising
on
RF
specification or regulatory requirement.
Figure 1: RLC2H receiver & TLC2H transmitter
Features
•
•
•
•
•
•
•
•
•
315, 433MHz variants conforms to EN 300 220-2 and EN 301 489-3
High performance double superhet. PLL synthesizer with TCXO
SAW front-end filter
Data rates up to 5 kbps for standard module
Usable range over 500m
Fully screened. Low profile
Feature-rich interface (RSSI, analogue and digital baseband)
Re-programmable via RS232 interface
Low power requirements
Applications
•
•
•
•
•
•
•
•
•
Handheld terminals
EPOS equipment, barcode scanners
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
DGPS systems
Vehicle data up/download
Heavy vehicle/machinery controls
Technical Summary
•
•
•
•
•
•
•
•
•
Operating frequency: 314.600-315.375MHz (USA)
433.875-434.650MHz (Europe)
458.525-458.775MHz (UK)
Any custom frequency on 433MHz – 435MHz
32 channels in 315MHz, 433MHz band
Transmit power: +10dBm (10mW)
Supply range: 3.1 - 15V (Transmit), 3.7 – 15V(Receive)
Current consumption: 34mA (transmit), 18mA (receive)
Data bit rate: 5kbps max. (standard module)
Receiver sensitivity: -120dBm (for 12 dB SINAD)
Serial configuration by inverted RS232 at 3V CMOS level
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 1
Figure 2: TLC2H block diagram
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 2
36.7mm
P4 Link (top)
2mm
RF
26.1mm
1.5mm
0V
4.2mm
8.9mm
1
3mm
centre line
+Vin
3
MOD
5
0V
Connector pitch: 2.54mm
Figure 3: TLC2H footprint (top view)
Pin description – TLC2H
Pin
1
2
3
4
5
P0/PGM
P1
P2
P3
Name
Vcc
No pin
TXD
No pin
0V
Parallel channel
select LSB, bit 0
Parallel channel
select, bit 1
Parallel channel
select, bit 2
Parallel channel
select, bit 3
Parallel channel
select MSB, bit 4
Function
3.1 – 15V DC power supply
Not present in TLC2H
DC coupled input for 3V CMOS logic. Rin=47kΩ
Not present in TLC2H
Ground
True logic (0V = low). Weak pullup to 3V;
Serial frequency programming / configuration1
True logic (0V = low). Weak pullup to 3V
True logic (0V = low). Weak pullup to 3V
True logic (0V = low). Weak pullup to 3V
P4
Jumper inserted, P4=0 (Channel 00 – Channel 15 at 50kHz step)
Jumper
Jumper clear, P4=1 (Channel 16 – Channel 31 at 50kHz step)
Notes:
1. Serial programming is by an inverted, CMOS logic level, 2400 baud RS232 datastream applied to
the P0 pin.
2. Parallel channel select is by 4 pin parallel input (LSB selected by a 2mm header, accessed through
a hole in the can)
3. Channel select inputs have pullups (10K) to 3V internal rail. Do not exceed 3V logic levels on this
port.
4. Transmitter will shutdown if Vcc falls below about 2.9v
5. TXD: logic low < 1.3V, logic high > 1.7V. TXD maximum voltage = 10V
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 3
Figure 4: RLC2H block diagram
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 4
Figure 5: RLC2H footprint (top view)
Pin description – RLC2H
Pin
1
2
3
4
5
P0/PGM
P1
P2
P3
Jumper
P4
Name
Vcc
RSSI
0V
RXD
AF
Parallel channel
select LSB, bit 0
Parallel channel
select, bit 1
Parallel channel
select, bit 2
Parallel channel
select MSB, bit 3
Parallel channel
select Jumper
Function
DC supply (3.7V to 15V, at 18mA).
0.5V-2.5V DC level. 60dB dynamic range. 40kΩ output impedance
Ground
Open collector digital data output with internal 47kΩ pull-up to Vcc
600mV pk-pk audio. DC coupled, approx 0.8V bias.
True logic (0V = low). Weak pullup to 3.5V
Serial frequency programming / configuration1
True logic (0V = low). Weak pullup to 3.5V
True logic (0V = low). Weak pullup to 3.5V
True logic (0V = low). Weak pullup to 3.5V
Jumper inserted, P4=0 (Channel 00 – Channel 15 at 50kHz step)
Jumper clear, P4=1 (Channel 16 – Channel 31 at 50kHz step)
NOTES:
1. Data recovery circuit used for RXD is not a simple 'average and compare' type. It is a peak
sampling quasi-DC coupled design, allowing a greater than usual flexibility in data format.
Maximum time between data transitions: 250ms
2. Serial programming is by a 2400 baud inverted 'RS232' (3V CMOS levels) datastream applied
to the P0 pin. If connection to a true RS232 port is desired, then a suitable inverting level
shifter / buffer (MAX232 or NPN switch transistor) is needed.
3. Parallel channel select is by a 4 pin parallel input (MSB selected by a 2mm header, accessed
through a hole in the can). 3V CMOS levels should be used.
4. As supplied the frequency table is thus:
CH 00-15
CH 16-31
314.600 – 314.975 MHz (25kHz steps) for 315MHz variant
315.000 – 315.375 MHz (25kHz steps)
CH 00-15
CH 16-31
433.875 – 434.625 MHz (50kHz steps) for 433MHz variant
433.900 – 434.650 MHz (50kHz steps)
CH 00-15
CH 16-31
458.525 – 458.775 MHz (25kHz steps) for 458MHz variant
458.525 – 458.775 MHz (25kHz steps)
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 5
Serial interface commands
2400 baud RS232. 8 bit data, no parity, 1 start bit, 1 or 2 stop bits.
Serial data is sent to the unit on one of the parallel channel select pins (P0). It is very important that
the unit does not ‘decode’ switch bounce in ordinary operation as a command string, or spurious rewriting of the EEPROM will result. For this reason the user must send the 16 character string
ENABLESERIALMODE to fully enable the serial command mode before sending any of the command
strings listed below. Command mode is disabled on power down, or on reception of a # character.
GOCHAN aa
LOAD aa nnnnn
SETPAR
SETSER
RVALUE rrrr
SINGLE nnnnn
Serially select channel XX, where XX is 0 to 31
Set value of N register for channel aa, where aa is Channels 0 to 31
Channel selected by 5 bit parallel inputs (4pins + jumper)
Channel selected by most recent GOCHAN operation
Set value for R register
Set value of N for single channel operation.
N value NOT stored in EEPROM
Process entry
Clear all buffers
Disable command mode
<cr>
/
#
aa = a two digit channel number from 00 to 31
nnnnn = synthesizer N register value (up to 65535)
rrrr = synthesizer R register value (up to 16383)
N TX =
N RX =
N TX =
N RX =
N TX =
N RX =
f RF
f Channelspacing
=
314.600 MHz
= 12584
25kHz
f RF − 21.4 MHz 314.600 MHz − 21.4 MHz
=
= 11728
f Channelspacing
25kHz
f RF
f Channelspacing
=
433.875MHz
= 17355
25kHz
R=
f TCXO
f channelspacing
=
13MHz
, So R=520
25kHz
f RF − 21.4 MHz 433.875MHz − 21.4 MHz
=
= 16499
f Channelspacing
25kHz
f RF
f Channelspacing
=
458.525MHz
= 18341
25kHz
f RF − 21.4 MHz 458.525MHz − 21.4 MHz
=
= 17485
25kHz
f Channelspacing
Note: A pause of at least 25ms must be allowed between command strings (EEPROM
programming time).
SINGLE mode does not store the N value in EEPROM. Therefore the unit is inoperative
after a power down until either another valid SINGLE command is received, or mode is
changed by a GOCHAN, SETPAR or SETSER command. SINGLE mode is intended for
frequency agile applications.
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 6
TLC2H, RLC2H channels are spaced at 50kHz interval into two frequency groups. 50kHz spacing
between sequential channels minimises adjacent channel interference. P4 jumper link determines
which frequency group is selected.
Channel
Jumper
P4
inserted
0
315MHz
variant
433MHz
variant
458MHz
variant
314.600
433.875
458.525
1
314.625
433.925
458.550
2
314.650
433.975
458.575
3
314.675
434.025
458.600
4
5
6
314.700
314.725
314.750
434.075
434.125
434.175
458.700
8
314.800
434.275
458.725
9
314.825
434.325
458.750
10
314.850
434.375
458.775
12
13
314.900
314.925
434.475
434.525
16
315.000
433.900
458.525
17
315.025
433.950
458.550
18
315.050
434.000
458.575
19
315.075
434.050
458.600
20
315.100
434.100
458.625
21
315.125
434.150
458.650
22
315.150
434.200
458.675
23
315.175
434.250
458.700
24
315.200
434.300
458.725
25
315.225
434.350
458.750
26
315.250
434.400
458.775
27
315.275
434.450
458.775
28
315.300
434.500
458.775
29
315.325
434.550
458.775
30
315.350
434.600
458.775
31
315.375
434.650
458.775
458.775
458.775
458.775
14
314.950
434.575
458.775
15
314.975
434.625
458.775
Radiometrix Ltd
458MHz
variant
458.675
434.225
434.425
433MHz
variant
458.650
314.775
314.875
315MHz
variant
458.625
7
11
Channel
Jumper
P4
removed
TLC2H/RLC2H Data Sheet
page 7
Condensed specifications
Frequency
Peak FM deviation
Frequency stability
Channel spacing
Number of channels
314.600-315.375MHz (USA)
433.875-434.675MHz (Europe)
458.525-458.775MHz (UK)
(custom variants on 433MHz – 435MHz)
±3kHz on 25kHz channel spacing variant
±1.5kHz on 12.5kHz channel spacing variant
±1.5kHz
25kHz or 12.5kHz
32 channels selected via RS232 interface
or 2 x 16 groups by parallel port
Operating temperature
Spurious radiations
-10 ºC to +60 ºC (Storage -30 ºC to +70 ºC)
Compliant with ETSI EN 300 220-2 and EN 301 489-3
Transmitter
Output power
TX on switching time
Modulation type
TX modulation bandwidth
Adjacent channel TX power
TX spurious
+10dBm (10mW) ±1dB (1mW or 5mW by special order)
50ms from power up
FSK (F3D)
DC – 5kHz (3V CMOS compatible)
<-37dBm
<-45dBm
Transmitter
Supply
Voltage
Current
Inputs
Size
Interface
User
Channel
RF
Recommended PCB hole size
Receiver
Sensitivity
image / spurious / adjacent channel
Blocking
LO re-radiation
Supply
Voltage
Current
Outputs
Size
Interface
User
Channel
RF
Recommended PCB hole size
Power on to valid audio
Power on to stable data out
(50:50 mark / space)
Maximum time between data
transitions
3.1V – 15V
34mA nominal transmit
analogue, data (CMOS/TTL compatible)
37 x 27 x 8mm
3pin 0.2" pitch molex
4pin 0.1" pitch molex
2pin 3mm pitch
1.2mm
-120dBm for 12 dB SINAD
<-60dB
<-85dB
<-60dBm
3.7V – 15V
18mA
RSSI, audio, data
50 x 30 x 10mm
5pin 0.1" pitch molex
4pin 0.1" pitch molex
2pin 0.1" pitch molex
1.2mm
28ms
50ms
250ms
Notes:
When RX is on and a transmitter keys up, again a 50ms period is required to stabilise data
output mark/space. i.e. allow at least 50ms of preamble
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 8
RX Received Signal Strength Indicator (RSSI)
The RLC2H has wide range RSSI that measures the strength of an incoming signal over a range of
60dB or more. This allows assessment of link quality and available margin and is useful when
performing range tests.
The output on pin 2 of the module has a standing DC bias of up to 0.4V with no signal, rising to 2.5V at
maximum indication (RF input levels of -40dBm and above). ∆Vmin-max is typically 2V and is largely
independent of standing bias variations. Output impedance is 40kΩ. Pin 2 can drive a 100µA meter
directly, for simple monitoring.
Figure 6: RSSI level with respect to received RF level at RLC2H antenna pin
Antenna requirements
Three types of integral antenna are recommended and approved for use with the module:
A) Whip
This is a wire, rod ,PCB track or combination connected directly to RF pin of the module.
Optimum total length is 16.4cm (1/4 wave @ 433MHz). Keep the open circuit (hot) end
well away from metal components to prevent serious de-tuning. Whips are ground plane
sensitive and will benefit from internal 1/4 wave earthed radial(s) if the product is small
and plastic cased
B) Helical
Wire coil, connected directly to RF pin, open circuit at other end. This antenna is very
efficient given it’s small size (20mm x 4mm dia.). The helical is a high Q antenna, trim
the wire length or expand the coil for optimum results. The helical de-tunes badly with
proximity to other conductive objects.
C) Loop
A loop of PCB track tuned by a fixed or variable capacitor to ground at the 'hot' end and
fed from RF pin at a point 20% from the ground end. Loops have high immunity to
proximity de-tuning.
Ultimate performance
Easy of design set-up
Size
Immunity proximity effects
Range open ground to similar antenna
Radiometrix Ltd
A
whip
***
***
*
*
500m
TLC2H/RLC2H Data Sheet
B
helical
**
**
***
**
200
C
loop
*
*
**
***
100
page 9
The antenna choice and position directly controls the system range. Keep it clear of other metal in the
system, particularly the 'hot' end. The best position by far, is sticking out the top of the product. This is
often not desirable for practical/ergonomic reasons thus a compromise may need to be reached. If an
internal antenna must be used, try to keep it away from other metal components, particularly large
ones like transformers, batteries and PCB tracks/earth plane. The space around the antenna is as
important as the antenna itself.
0.5 mm enameled copper wire
close wound on 3.2 mm diameter former
RF
433 MHz = 24 turns
A. Helical antenna
Feed point 15% to 25% of total loop length
RF-GND
track width = 1mm
2
C2
C3
C1
4 to 10 cm inside area
RF
C4
B. Loop antenna
16.4cm
wire, rod, PCB-track or a combination
of these three
RF
C. Whip antenna
433 MHz = 16.4 cm total from RF pin.
Figure 7: Antenna types
Variants and ordering information
Part No.
Description
Frequency band
TLC2H-315-5
RLC2H-315-5
Transmitter
Receiver
314.600-315.375MHz
314.600-315.375MHz
TLC2H-433-5
RLC2H-433-5
Transmitter
Receiver
433.875-434.650MHz
433.875-434.650MHz
TLC2H-458-5
RLC2H-458-5
Transmitter
Receiver
458.525-458.775MHz
458.525-458.775MHz
Other variants can be supplied to individual customer requirements at frequencies from 433MHz to 435MHz and/or
optimised for specific data speeds and formats. Please consult the Sales Department for further information.
Radiometrix Ltd
TLC2H/RLC2H Data Sheet
page 10
Radiometrix Ltd
Hartcran House
231 Kenton Lane
Harrow, Middlesex
HA3 8RP
ENGLAND
Tel: +44 (0) 20 8909 9595
Fax: +44 (0) 20 8909 2233
[email protected]
www.radiometrix.com
Copyright notice
This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in whole or
in part must give clear acknowledgement to the copyright owner.
Limitation of liability
The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the
right to make changes or improvements in the design, specification or manufacture of its subassembly products
without notice. Radiometrix Ltd does not assume any liability arising from the application or use of any product or
circuit described herein, nor for any infringements of patents or other rights of third parties which may result from
the use of its products. This data sheet neither states nor implies warranty of any kind, including fitness for any
particular application. These radio devices may be subject to radio interference and may not function as intended if
interference is present. We do NOT recommend their use for life critical applications.
The Intrastat commodity code for all our modules is: 8542 6000.
R&TTE Directive
After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of the
R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance to the
essential requirements specified in Article 3 of the Directive, as appropriate to the particular equipment.
Further details are available on The Office of Communications (Ofcom) web site:
http://www.ofcom.org.uk/radiocomms/ifi/
Information Requests
Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
Tel: +44 (0)845 456 3000 or 020 7981 3040
Fax: +44 (0)20 7783 4033
[email protected]
Radiometrix Ltd
European Radiocommunications Office (ERO)
Peblingehus
Nansensgade 19
DK 1366 Copenhagen
Tel. +45 33896300
Fax +45 33896330
[email protected]
www.ero.dk
TLC2H/RLC2H Data Sheet
page 11
Radiometrix Ltd
Worldwide Distributors
Radiometrix Ltd
Hartcran House
231 Kenton Lane
Harrow
Middlesex
HA3 8RP
ENGLAND
Tel: +44 (0) 20 8909 9595
Fax: +44 (0) 20 8909 2233
[email protected]
www.radiometrix.com
RF Modules Australia
P.O. Box 1957, Launceston, TAS 7250
AUSTRALIA (including South Pacific)
Tel: +61 3 6331 6789, Fax +61 3 6331 1243 [email protected]
IDVISION B.V.B.A
Augustijnenstraat 44, B-8900 Ieper
BELGIUM (including NETHERLANDS, LUXEMBOURG)
Tel.: +32 57 216141, Fax: +32 57 216434 [email protected]
RS do Brasil Ltda.
Av. Brigadeiro Faria Lima 2413 (6º andar), 01451-001
São Paulo - SP
BRAZIL
Tel: +55 11 3819 0429, Fax: +55 11 3097 0009 or 11 3815 1162
[email protected]
Itronica Inc.
41 Dunvegan Crescent
Brampton, Ontario
N8X 1R6,
CANADA
Tel: +1 416 855 2106
East Momiji Precision Co., Limited
Unit 1, 6/F., Heng Ngai Jewelry Centre, No. 4 Hok Yuen St. East,
Hung Hom, KowloonHong Kong
CHINA
Tel: +852 28169196 Fax:+852 28162861/ 81489523
[email protected]
Advanced Radio Telemetry
Francouzská 82, 602 00 Brn
CZECH REPUBLIC
Tel.: +420 (5)4521 1403, Fax: +420 (5)4521 0506
[email protected]
Nu Horizons Electronics A/S
Savsvinget 7
DK-2970 Hoersholm
DENMARK
Tel: +45 7010 4888, Mobile: + 45 2320 8589,
Fax: +45 7010 4889
[email protected]
TQ Electronic Oy
Laurinkatu 40
08100 Lohja
FINLAND
Tel: +358 19 326451, Fax: +358 19 326452,
Mobile: +358 400 670 697
[email protected]
Lextronic
36/40 Rue du Gal de Gaulle,
94510 La Queue en Brie
FRANCE
Tél: +33 (0)1 4576 8388, Fax: +33 (0)1 4576 8141
[email protected]
HY-LINE Communication Products GmbH
Inselkammerstraße 10,
D-82008 Unterhaching
GERMANY (including AUSTRIA)
Tel: +49 89 61450319, Fax: +49 89 6140960
[email protected]
Semix Marketing & Engineering Ltd.
16 Hamelacha Street, Degem Building
Afek Industrial Park
Rosh Ha'ain
ISRAEL 48091
Tel : +972-3-9109910, Fax: +972-3-9032068
[email protected]
Orvem S.p.A.
Via Sacco e Vanzetti, 34
20099 SESTO SAN GIOVANNI
Milano
ITALY
Tel: +39 02 34541160 Fax: +39 02 34541165
[email protected]
RF Design Ltd
Suite 19, 220 Ottery Road, Wynberg, Cape Town 7945
SOUTH AFRICA
Tel: +27-21-762-5365, FAX: +27-21-797-1983 [email protected]
HY-LINE AG
Forbüelstrasse 16, CH-8245 Feuerthalen,
SWITZERLAND
Tel: +41-52 659 63 03, Fax: +41-52 659 63 93 [email protected]
Lemos International Co. Inc.
1275 Post Rd, Suite A-12, Fairfield, Ct. 06824,
UNITED STATES OF AMERICA
Tel: +1 203 254 1531, Fax: +1 203 254 7442 [email protected]
Fax: +1 416 855 2105 [email protected]