Pin description:
RF GROUND (pins 2)
RF ground, internally connected to the module screen and pin 3 (0V). These pins should be directly
connected to the RF return path - e.g. coax braid, main PCB ground plane etc.
RF OUT
(pin 1)
50Ω RF output to the antenna. Internally DC-isolated. See antenna section of apps notes for details of
suitable antennas.
VCC
(pin 5)
+2.2V to +4V DC supply. Max ripple content 0.1VP-P
.
GROUND
(pin 3)
DC supply ground. Internally connected to pins 2 & 3.
DATA (pin 4)
DC-coupled modulation input. Accepts serial digital data at 0V to 4V levels.
Absolute maximum ratings
Survival Maximums:
Exceeding the values given below may cause permanent damage to the module.
Operating temperature-
Storage temperature
-20°C to +70°C
-40°C to +100°C
TX2S, all variants
Vcc (pin 5)
-0.3V to +4.0V
Data input (pin 4)
-0.3V to +4.0V
RF out (pin 1)
±50V DC 10dBm RF
Performance Specifications: TX2S transmitter.
(Temperature = 20C unless stated)
pin min.
typ.
max. units
notes
DC LEVELS
supply voltage
5
2.2
3.0
4.0
V
CURRENT & RF POWER
TX2S-433-40-3V
Supply current @ Vcc = 3V
5
1
6
0
7
+2
10
+4
mA
dBm
RF power
@ Vcc = 3V
1
RF
harmonics @ < 1GHz
harmonics @ > 1GHz
initial frequency accuracy
overall frequency accuracy
1
1
-
-
-
-60
-40
+/-10
+/-10
-54
-30
+20
+25
dBm
dBm
kHz
kHz
1
1
-20
-25
-
FM deviation (+/-)
Modulation bandwidth @ -3dB
-
-
20
DC
27
-
35
20
kHz
kHz
modulation distortion (THD)
power up time to full RF
-
-
-
-
5
1
10
1.5
%
ms
Note: 1. Measured into a 50Ω load.
Radiometrix Ltd, TX2S/TX3S Data Sheet
page 3
RADIOMETRIX [ RADIOMETRIX LTD ]
