| The
CVR1 receiver modules offers a low cost, reliable
data link in a Radiometrix BiM standard pin out
and footprint. CVR1 is availble in 173.225MHz frequency
as standard. CVR1 is compatible with the Radiometrix
TX1 and BiM1T transmitters. |
Figure 1: CVR1-173.225-10 |
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Features
- Conforms to EN 300 220-3 and EN
301 489-3
- Standard frequency 173.225MHz
- Other frequencies from 120MHz
to 180MHz
- Data rates up to 10kbps for standard
module
- Feature-rich interface (RSSI,
analogue and digital baseband)
- Low current consumption
- Low battery life
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| CVR1 is the cut down version of standard
BiM1R receiver and lacks internal supply regulator and
screening. Although CVR1 is made available for low end
wireless applications where the cost is also a concern,
its RF performance is not compromised. |
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Applications
- Solar powered remote installation
- Data loggers
- Industrial telemetry and telecommand
- In-building environmental monitoring and control
- Security and fire alarms
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Technical Summary
- Size: 33 x 23 x 8mm
- Operating frequency: 151.300MHz
- Supply : 3V (regulated)
- Current consumption: 7mA
- Data bit rate: 10kbps max.
- RSSI output with >60dBm range
- 10kbps, -120dBm sensitivity (for
12 dB SINAD)
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Evaluation Platform:
Universal
Evaluation kit or Narrow
Band Evaluation Kit
Matching Transmitters:
TX1 , TX1H
, HX1, BiM1T
or BiM1HT |
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User interface
Figure 4: CVR1 pin-out and dimension
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| BiM1pin |
Name |
Function |
| 1 |
0V |
Ground |
| 2 |
Vcc |
3.0V regulated DC
power supply |
| 3 |
RX select |
Pull
low to enable Receiver |
| 4 |
NC
|
No connection |
| 5 |
NC
|
No connection |
| 6 |
AF |
500mV pk-pk audio.
DC coupled, approx 0.8V bias |
| 7 |
RXD |
2.5V pk-pk logic
output of data slicer. Suitable for Biphase codes |
| 8 |
RSSI |
DC level between
0.5V and 2V. 60dB dynamic range |
| 9 |
0V |
Ground |
|
NOTES:
1. RX SELECT and RXD have
internal (10k approx.) pull-up to Vcc
3. Pin out is as BiM1. On RF connector end only pins 1,
2, 3 are present. |
| Absolute
maximum ratings
Exceeding the values given below
may cause permanent damage to the module.
| Operating temperature |
-10°C to +60°C |
| Storage temperature |
-30°C to +70°C |
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| RF in (pin 1) |
±50V @ <10MHz,
+13dBm @ >10MHz |
| All other pins |
-0.3V to +16.0V |
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| Interface: |
User: 9pin 0.1"
pitch molex |
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RF: 3pin 0.1"
pitch molex |
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Condensed specifications
(Vcc = 3V / temperature = 20°C
unless stated)
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| RF centre frequency
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173.225 (other VHF 120-180MHz
by special order)
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| Frequency stability |
+/- 2.5kHz |
| Channel spacing
|
25
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| Number of channels |
1
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| Supply Volatge |
3V (+/- 10% )
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| Current |
7mA receive
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| Operating temperature |
-10°C to +60°C
(Storage -30°C to +70°C) |
| Size |
33mm x 23mm x 8mm |
| Spurious radiations |
Compliant with ETSI
EN 300 220-3 and EN 301 489-3 |
| Interface |
|
|
User
|
9pin 0.1" pitch
molex |
|
RF
|
3pin 0.1" pitch
molex |
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| RF sensitivity @
12dB SINAD |
-120dBm
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| RF sensitivity @
1ppm BER |
-115dBm
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| RSSI range |
60dB
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| Blocking |
-85dB or better
|
| Image rejection |
-60dB or better
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| Adjacent channel
rejection |
-65dB
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| Spurious response
rejection |
-60dB or better
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| LO re-radiation |
-65dBm
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| Baseband |
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| Baseband bandwidth
@ -3dB |
5kHz
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| AF level |
500mV
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| DC offset on AF
out |
0.8V
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| Outputs |
RSSI, Data, AF |
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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:
Licensing
policy manual
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