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參數(shù)資料
| 型號(hào)： | QFMT1-434 |
| 英文描述： | TRANSMITTER SIL 433MHZ |
| 中文描述： | 南港島433MHz頻段發(fā)射機(jī) |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 51K |
| 代理商： | QFMT1-434 |
QM Transmitter Module
QFMT1-XXX
QFMT1 rev 1.3 May 00
Reg No 3678152
Page 3
Connection Details
Quasar
UHF Radio Transmitter
1
2
3
4
5
Figure 1: Quasar Transmitter
Pin Description:
RF GND
(pin 1)
RF ground pin, internally connected to pin 4 (0V).
This pin should ideally be connected to the
nearest ground plane (e.g. coax braid, main PCB
ground plane etc.)
RF OUT
(pin2)
50
RF antenna output. To achieve best results
the antenna impedance must match that of the
module.
V
CC
(pin 3)
+Ve supply pin (3.0 to 9.0 volts). The module will
generate RF when V
CC
is present. It is strongly
recommended that a 100nF capacitor decouples
the supply rail as close as possible to this pin.
GND
(pin 4)
Supply and data ground connection, connected to
pin 1.
Data IN
(pin 5)
This input has an impedance of 47K
and should
ideally be driven by a CMOS logic drive or
compatible. The drive circuitry should be supplied
with the same supply voltage as the Tx module.
General Information
The Quasar transmitter module implements a
unique quasi AM/FM modulation scheme that puts
the baseband data signal onto the RF carrier in
two different ways. Firstly the carrier is shifted in
frequency (typically 20 KHz) which generates the
normal FSK spectrum, but simultaneously the RF
carrier is also amplified thus yielding the ASK
spectrum.
Utilising the quasi AM/FM modulation technique
with one of the compatible Quasar receivers will
yield a highly efficient wireless link.
Note:
Because of the way Quasi Modulation
operates the QMR1 and the QFMT1 will not work
reliably in close proximity to each other.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| QFMT1-434 | 制造商:QUASAR 功能描述:TRANSMITTER SIL 433MHZ |
| QFMT1-868 | 制造商:RFSOLUTIONS 制造商全稱:rfsolutions.ltd 功能描述:QM Radio Transmitter Module |
| QFMT1-916 | 制造商:RFSOLUTIONS 制造商全稱:rfsolutions.ltd 功能描述:QM Radio Transmitter Module |
| QFMT1-XXX | 制造商:RFSOLUTIONS 制造商全稱:rfsolutions.ltd 功能描述:QM Radio Transmitter Module |
| QFMT5-433 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM TRANSMITTER MODULE 433 |
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