User interface
45mm
5.5mm
17mm
TX3H-869.50-10
pin spacing:
2.54 mm
15.24 mm
1 = RF gnd
2 = RF out
3 = RF gnd
4 = En
1
2
3
7
4
5
6
5 = Vcc
6 = 0V
7 = TXD
7 holes of 0.7 mm dia.
pin spacing 2.54 mm
Figure 3: TX3H pin-out and dimension (compared to TX3A)
TX1H pin
1, 3
2
4
5
Name
RFgnd
RF out
EN
VCC
0V
Function
RF Ground
50Ω RF output to the antenna
Pull high to enable TX. <0.15V shuts down module (current <1µA).
5V regulated DC power supply
Ground
6
7
TXD
DC coupled input for 5V CMOS logic. Rin = 100kΩ
Note: Pin out as TX1H and standard TX3A
Condensed specifications:
Operating temperature: -40°C to +85°C
(Figures apply at +25°C, 5.0V supply unless otherwise stated)
pin
min.
typ.
max.
units
notes
Supply
Supply voltage
Supply current
Standby current (EN <0.15V)
5
5
5
4.9
-
-
5
310
-
5.1
-
1
V
mA
µA
8
8
RF
RF power output
2
2
2
+25.5
+26.5
+27
-54
-40
-
+15
+40
-
dBm
dBm
dBm
MHz
kHz
kHz
kHz
Ω
1
2
2
3
-
-
-
Spurious emissions, ≤1GHz
Spurious emissions, ≥ 1GHz
RF centre frequency
Initial Frequency accuracy
Overall Frequency accuracy
FM deviation (peak)
Antenna pin impedance
Number of channels
-
869.50
0
0
±27
50
-
-15
-40
-
-
-
4
5
2
-
-
1
Baseband
Modulation bandwidth @ -3dB
Maximum raw data rate
TXD input level (logic low)
TXD input level (logic high)
Dynamic timing
DC
-
-
0
8
16
-
kHz
kbps
V
6
6
7
7
-
-
-
6
6
5.0
-
V
TX enable to full RF
-
53
55
ms
8
Notes:
1. Measured into 50Ω resistive load
2. Meets EN requirements at all frequencies
3. There is a <10% duty cycle restriction on 869.50 MHz in EU member states
4. Total over full supply and temperature range
5. With 0V – 5.0V modulation input
6. 5V CMOS compatible
7. To achieve specified FM deviation
8. Supply to Vcc must be constant and should not be used for power up of tx (use EN)
Radiometrix Ltd, TX3H Data Sheet
page 3
RADIOMETRIX [ RADIOMETRIX LTD ]
