T7 / R7
T7G / R7G
FM 433MHz Narrow Band
Absolute Maximum Ratings: Transmitter (all voltage versions)
T7
T7G
Min.
-25°C
-40°C
Max.
+55°C
+100°C
Min.
-10°C
-40°C
Max.
+55°C
+100°C
Operating Temperature
Storage Temperature
Supply Voltage
Data Input
-
-
12V
10V
-
-
5.5V
5.5V
Electrical Characteristics: Transmitter
T7
Typ.
T7G
Typ.
Units
Pin Notes
Min.
Max.
Min.
Max.
DC Levels
Supply (5V variants)
Supply (3V variants)
2.2
-
5.0
-
12.0
-
4.5
2.2
5.0
3.0
5.5
4.0
Volts
Volts
3
3
Current & RF Power
Supply current @
7
3
-
24
25
22
13
mA
mW
mA
3
2
3
2
1
1
1
1
V
CC = 5V
RF output power @
CC = 5V
V
Supply current @
VCC = 3V
RF output power @
-
mW
VCC = 3V
RF & Data (All Variants)
2nd harmonic
Harmonics @ >
1GHz
-60
-60
-40
-50
dBm
dBm
2
2
Initial frequency
accuracy
Frequency accuracy
over full temp range
Modulation
bandwidth @ -3dB
Power up time to full
RF
+/-25
+/-25
Hz
KHz
KHz
ms
+/-30
20
±27
20
5
30
5
3
Data rate
20
kbits/s
Data pulse width
50
50
µs
Notes
1. Measured into a 50Ω impedance.
2. The limit for the European spec EN 300 220 is -36dBm
3. A +/-2.5KHz Deviation on the RF carrier is also available
Part No
Description
T7-434-075
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-434-075
T7G-434-075-3V
T7G-434-225
T7G-434-525
T7G-434-525-3V
DS307-7 Oct 05
©2004 REG No 277 4001, England.
Page 3
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