R7G-434.525 QUASAR, R7G-434.525 Datasheet

RECEIVER, NARROW BAND, 434.525

R7G-434.525

Manufacturer Part Number
R7G-434.525
Description
RECEIVER, NARROW BAND, 434.525
Manufacturer
QUASAR
Datasheet
1.R7G-434.075.pdf (7 pages)

Specifications of R7G-434.525

Svhc
No SVHC (18-Jun-2010)
Current Rating
1.1mA
Data Rate Max
20Kbps
External Depth
4.65mm
External Length / Height
17mm
External Width
49mm
Frequency
434.525MHz
Operating Temperature Max
70°C
Features
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•
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•
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•
•
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T7/R7 Modules
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•
T7G/R7G Modules
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•
•
General Description
The T7/R7 series are miniature narrow band
transmitter and receiver UHF radio modules,
which enable the implementation of a simple
telemetry link at data rates up to 20Kbits/s.
These narrow band UHF radio modules provide a
very high RF performance for general purpose
applications.
The transmitter modules have a power output of
up to 25mW. When combined with a very high
receiver sensitivity these modules obtain a very
high performance of range and reliability within
the 433MHz band.
DS307-7 Oct 05
Miniature SIL Package
FM Narrow Band
Fully Shielded
Narrow Band Crystal Stabilised
Data Rates Up To 20 Kbits/S
En 300-220 Compliant
Data & AF Out
CD Implemented On Data Output
RSSI Output
Selective Ceramic IF Filters
Wide Operating Voltage (2.2 - 10 Vdc).
Optimal Range 600 metres
3 or 5 Volt Operating Voltage
3 Channels available from Stock
Optimal Range 1,000 metres
FM 433MHz Narrow Band
©2004 REG No 277 4001, England.
Applications
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•
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Available for operation between 433.075 and
434.725 MHz in 25KHz steps there are currently 3
different frequency channels available from stock.
(others available to special order)
The T7G and R7G genesis modules represent the
latest generation of narrow band transmitters.
They retain the same industry standard footprints
and are fully compatible with the T7 and R7
modules to enable incorporation into both new
and existing designs. The improved sensitivity of
the R7G enables a range of up to 1Km when used
with the T7G modules.
Telemetry Systems
Wireless Networking
Domestic And Commercial Wireless Security
Systems
Panic Attack Facility
Remote Control For Cranes Etc
Page 1
T7G / R7G
T7 / R7

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R7G-434.525 Summary of contents

Page 1

... They retain the same industry standard footprints and are fully compatible with the T7 and R7 modules to enable incorporation into both new and existing designs. The improved sensitivity of the R7G enables a range 1Km when used with the T7G modules. Page T7G / R7G ...

Page 2

... FREQ/MHz 1 433.075(2) 18 433.925(2) 2 433.125(2) 19 433.975(2) 3 433.175(2) 20 434.025(2) 4 433.225(2) 21 434.075 (1) 5 433.275(2) 22 434.125(2) 6 433.325(2) 23 434.175(2) 7 433.375(2) 24 434.225(1) 8 433.425(2) 25 434.275(2) 9 433.475(2) 26 434.325 (2) 10 433.525(2) 27 434.375(2) 11 433.575(2) 28 434.425(2) 12 433.625(2) 29 434.475(2) 13 433.675(2) 30 434.525 (1) 14 433.725(2) 31 434.575(2) 15 433.775(2) 32 434.625(2) 16 433.825(2) 33 434.675(2) 17 433.875(2) 34 434.725( T7G / R7G Page 2 ...

Page 3

... Description SIL Transmitter 434.075MHz SIL Transmitter 434.075MHz SIL Transmitter 434.075MHz, 3 Volt version SIL Transmitter 434.225MHz SIL Transmitter 434.525MHz SIL Transmitter 434.525MHz, 3 Volt version T7G / R7G T7G Min. Max. -10°C +55°C -40°C +100°C - 5.5V - 5.5V Units Pin Notes Max. 5.5 ...

Page 4

... Signal to stable data (With PSU already on) Power up to valid RSSI ( With RF signal Present ) Mark:space ratio Bit rate Notes 1. Timings are to be confirmed. 2. For R7G: For 12dB SINAD from the AF output 3. Note 1Hz = 2 bps Part No R7-434-075 R7G-434-075 R7G-434-225 R7G-434-525 ©2004 REG No 277 4001, England. ...

Page 5

... REG No 277 4001, England. DS307-7 Oct 05 Receiver Connection Diagram Figure 2: Narrow Band R7 / R7G Receivers Pin Description pin 1) 50 Ohm RF input from antenna, connect using shortest possible route. This input is isolated from the internal circuit using the air gap of the front end SAW RF filter ...

Page 6

... A5 D11 DATA OUT D10 DATA OUT DATA OUT VSS D8 DATA OUT 1 HT12D + VDD DOUT R OSC OSC1 OSC2 TE AD11 AD10 AD9 9 10 VSS AD8 HT12E Figure 5: FM Narrow Band Transmitter & Receiver Application Circuits Page T7G / R7G ANTENNA + GR7 ANTENNA + GT7 ...

Page 7

... 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. ©2004 REG No 277 4001, England. DS307-7 Oct 05 RSSI Values The R7 / R7G receiver RSSI outputs provide a DC output proportional to the RF signal. The table below shows the typical RSSI value depending on the Signal strength. ...

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