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ENT1 PDF даташит
| Спецификация ENT1 изготовлена «Radiometrix» и имеет функцию, называемую «12.5kHz Channel VHF High Power TX». |
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Детали детали
| Номер произв | ENT1 |
| Описание | 12.5kHz Channel VHF High Power TX |
| Производители | Radiometrix |
| логотип |  |
11 Pages
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NEW Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Issue 1, 16 October 2007
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
ENT1
12.5kHz Channel VHF High Power TX
The ENT1 transmitter modules offer a
100mW RF output VHF data link in
Radiometrix SIL standard pin-out and
footprint. This makes the ENT1 ideally
suited to those low power applications
where existing narrow band and
wideband transmitters provide
insufficient range. Together with the
matching LMR1/RX1M receiver a one-
way radio data link can be achieved
over a distance up to 10km+ with
suitable choice of data rate and
antennas.
Figure 1: ENTI –169.40625-3
Features
• Conforms to EN 300 220-3 and EN 301 489-3
• Standard frequency 169.406250MHz
• Other frequencies from 120MHz to 180MHz
• 12.5 kHz channel spacing
• Data rates up to 3kbps
• Usable range over 10km
• Fully screened
• Low power requirements
Applications
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• Remote meter reading
• Data loggers
• Industrial telemetry and telecommand
• In-building environmental monitoring and control
• High-end security and fire alarms
• DGPS systems
• Vehicle data up/download
Technical Summary
• Size: 43 x 14.5 x 5mm
• Operating frequency: 169.406250MHz
• Supply range: 5v
• Current consumption: 70mA Max
• Data bit rate: 3kbps max.
• Transmit power: 20dBm (100mW) nominal
Radiometrix Ltd.,
ENT1 high power transmitter data sheet
Page 1
No Preview Available ! |
www.DataSheet4U.com
Radiometrix Ltd.,
ENT1 high power transmitter data sheet
Page 2
No Preview Available ! |
Functional description
The ENT1 transmitter consists of a frequency modulated Voltage Controlled Temperature Controlled
Crystal Oscillator (VCTCXO) feeding a frequency multiplier with two stage amplifier and RF filter.
Final Power Amplifier stage is factory pre-set to appropriate band power level. Operation can be
controlled by the EN (Enable) line, the transmitter achieving full RF output typically within 7ms of this
line being pulled high. The RF output is filtered to ensure compliance with the appropriate radio
regulations and fed to the 50Ω antenna pin.
User interface
14.5mm
43mm
ENT1
5mm
pin spacing:
2.54 mm
15.24 mm
123
4 5 67
7 holes of 0.7 mm dia.
pin spacing 2.54 mm
1 = RF gnd
2 = RF out
3 = RF gnd
4 = En
5 = Vcc
6 = 0V
7 = TXD
Figure 3: ENT1 pin-out and dimension
ENT1 pin
1, 3
2
4
5
6
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Name
RFgnd
RF out
EN
VCC
0V
TXD
Function
RF Ground
50 RF input from the antenna
Pull high to enable Transmitter (Note 1)
5V DC power supply
Ground
DC coupled input for 5V CMOS logic. Rin = 100kΩ
NOTES:
1. EN pin should not be left floating
Radiometrix Ltd.,
ENT1 high power transmitter data sheet
Page 3
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