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KTX2 데이터시트(Datasheet) 2 Page - Radiometrix Ltd

부품명 KTX2
상세내용  UHF FM Code-Hopping Data Transmitter Module
PDF  8 Pages
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제조사  RADIOMETRIX [Radiometrix Ltd]
홈페이지  http://www.radiometrix.com
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Radiometrix Ltd, KTX2 Data Sheet
page 2
Functional and operational description
The KTX2 transmitter module is a crystal based PLL controlled FM code-hopping transmitter with a pre-
programmed Electronic Serial Number (ESN), operating between 3V and 6V supply, at 433.92MHz.
KTX2 is designed to meet or exceed EN 300 220-3 standards for European use and delivers nominally
+3dBm at 8mA (for 5V supply). The module measures 36.2 x 15.2 x 4.5 mm.
The module is very easy to use: there are no modulation input or transmitter-enable pins. The activation
of any combination of the four function lines (S0 – S3) causes a data transmission, part of which is the
status of S0 – S3, i.e. the function code. In this way, up to 15 different control combinations can be sent
from one module. Simple pushbuttons can be connected directly between S0 – S3 and Vcc if desired. The
module will transmit repeatedly whilst any of the function lines is held high for up to 30 seconds (approx.),
when a power-saving time-out feature is activated.
Vcc
(pin 4)
+3V to +6V DC supply. Max ripple content 0.1VP-P. Decoupling is not generally required.
S0
(pin 5)
Input (0) – activate high (>0.55Vcc – Vcc) to cause a transmission.
S1
(pin 6)
Input (1) – activate high (>0.55Vcc – Vcc) to cause a transmission.
S2
(pin 7)
Input (2) – activate high (>0.55Vcc – Vcc) to cause a transmission.
S3
(pin 8)
Input (3) – activate high (>0.55Vcc – Vcc) to cause a transmission.
Internal Use (pin 9)
Modulation (Data). This pin is connected to the modulation input of the Transmitter, therefore do not
connect anything to this pin during operation of the module.
RF gnd
433.92 MHz
band pass
filter
buffer
1
RF out
Loop
Filter
Encoder
ref
osc
φ
5
2
supply
regulator
4
3 - 6Vcc
÷32
V C O
3
0V
6
7
8
9
S1
S0
S2
S3
Fig. 2: KTX2 block diagram
Pin description:
RF OUT
(pin 1)
50
Ω RF output to the antenna. Internally DC-
isolated. See antenna section of apps notes for
details of suitable antennas.
RF GND
(pin 2)
RF ground, internally connected to the module
screen and pin 3 (0V). This pin should be
directly connected to the RF return path - e.g.
coax braid, main PCB ground plane etc.
0V
(pin 3)
DC supply ground. Internally connected to pin
2 and module screen.
4.5 mm
36.2 mm
15.2
mm
15.7
mm
PCB level
Radiometrix
KTX2
9 holes, 0.7 mm dia, pin spacing 2.54 mm
Fig 3: KTX2 physical dimensions
15.24 mm
1
1 = RF OUT
2 = RF GND
3 = 0V
4 = Vcc
6 = S1
7 = S2
5 = S0
2
3
4
5
6
7
8
9
8 = S3
9 = Internal Use




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