R7G-434.525 QUASAR, R7G-434.525 Datasheet - Page 7

• Manufacturer Part Number: R7G-434.525
• Description: RECEIVER, NARROW BAND, 434.525
• Manufacturer: QUASAR

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

10.5 mm
Reducing Power to 10mW
If the T7G transmitter will be used with an efficient
antenna in countries where only 10mW radiated
power is allowed, then a simple resistive network
on the output of the module will attenuate the
power down to this level.
When laying out this network, keep all tracks as
short as possible, especially ground paths and
use 50 ohm track impedances when connecting to
and from this network. This impedance can be
realised on 1.6mm FR4 pcb by using a track width
of 2.5mm.
Mechanical Dimensions
DS307-7 Oct 05
1.5mm
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.
220 ohm
TO
ANTENNA
T7 / T7G
1
Email : [e-mail]
Information contained in this document is believed to be accurate , however no representation or warranty is given and no liability is assumed by R.F. Solutions Ltd. With
Pin spacings 2.54 mm
Pin Dia 0.5mm
All dimensions +/- 0.5mm
Tel: [phone]
2
20.32 mm
Circuit Diagram
22ohm
31.5 mm
220 ohm
3
FM 433MHz Narrow Band
4
CE
©2004 REG No 277 4001, England.
1 2
5
T7B
3.0 mm
3.5mm
Unit 21, Cliffe Industrial Estate,
E. Sussex. BN8 6JL, England
3
4
South Street, Lewes,
5
R F Solutions Ltd.,
17mm
R7 / R7G
1 2
Pin spacings 2.54 mm
Pin Dia 0.5mm
pin 1 is 2.33mm from edge of module
All dimensions +/- 0.5mm
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.
Notice that the region between –80 to –60 is with
the receiver agc operating. If required, a receiver
version with agc disabled can be provided as a
factory Pre-set option. This would linear-rise the
RSSI curve.
Strength/dBm
RF Signal
pin spacing 2.54mm
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
30.48mm
http://www.rfsolutions.co.uk
48mm
Fax: [phone]
Page 7
R7 (V)
1.03
1.06
1.16
1.34
1.59
1.78
1.81
1.81
2.17
2.45
2.52
2.52
3 4 5 6 7
T7G / R7G
GR7 (V)
T7 / R7
1.25
1.32
1.46
1.69
1.96
2.47
2.2
2.5
2.5
-
-
-
4.65mm
8.30mm