TX2EH-433-64-5V RADIOMETRIX [Radiometrix Ltd], TX2EH-433-64-5V Datasheet - Page 2

• Manufacturer Part Number: TX2EH-433-64-5V
• Description: UHF High Power FM Transmitter
• Manufacturer: RADIOMETRIX [Radiometrix Ltd]

Functional description
The TX2H transmitter module is a crystal based PLL controlled FM transmitter operating on either 3V
or 5Vsupply and is available in 433.92MHz.
User interface
[e-mail]
RF out
TX2H pin
1
2
3
4
5
2
RF GND
1
868/915 MHz
band pass
filter
Name
RFgnd
RF out
VCC
0V
TXD
amp
12.0 mm
buffer
Function
RF ground, internally connected to the module screen and pin 4 (0V). This pin
should be directly connected to the RF return path - e.g. coax braid, main PCB
ground plane etc.
50 RF output to antenna. Internally DC-isolated.
+ve supply pin. The module will generate RF when the Vcc supply is present.
Max ripple content 0.1Vp-p. A 100nF de-coupling ceramic capacitor is
suggested.
DC supply ground. Internally connected to pin 1 and module screen.
This DC coupled modulation input will accept either serial digital data ( 0 V to
Vcc levels) or high level linear signals. Input impedance is 100 k
1
Figure 3: TX2H pin-out and dimension
V C O
2
5 holes of 0.7 mm dia.
pin spacing 2.54 mm
Figure. 2: TX2H block diagram
R1
TX2H UHF Transmitter
Radiometrix
pin spacing:
20.32 mm
2.54 mm
32 mm
TX2H – Data
Loop
Filter
64
3
4
5
12.5 mm
PCB level
1 = RF gnd
2 = RF out
3 = Vcc
4 = 0V
5 = TXD
osc
ref
5.5 mm
35kHz
LPF
Page - 2 -
R2
3V / 5V
TXD
0V
4
5
3