Aurel TXSAW433 Manual de Usario

Aurel receptor TXSAW433

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TX- -SAW/433 s Z
Instruction Manual
Technical features are subject to change without notice. AUR°EL S.p.A does not feel responsible for any damage caused by the device’s misuse.
AUR°EL S.p.A. Via Foro dei Tigli, 4 - - - 47015 Modigliana (FC) – ITALY Rev. A, 19 09 2001
Tel.: +390546941124 – 1 Fax: +390546941660 Pag of 5
http://www.aurel.it - email: aurel@aurel.it
TX- -SAW / 433 s Z Transmitter
SAW Transmitter module with external antenna, for utilisations with ON-OFF modulation of a RF carrier with digital data.
Pin-out
Connections
Pin 1- -4 13 Ground GND Connections. To be externally connected to a single ground plate.
(see fig. 3)
Pin 2 Input Mod. TTL 0÷5V type data input with a minimum 5KΩ resistance. Connection
utilized only if the supply to pin 15 is +12V ±10% (see fig. 2)
Pin 3 Input Mod. TTL 0÷5V type data input with a minimum 5KΩ resistance. Connection
utilized only if the supply to pin 15 is +5V ±10% (see fig. 2)
Pin 11 RF output RF output with a characteristic impedence of 50Ω
Pin 15 +V Connection to the positive pole of the +5V ±10% supply
Max voltage values allowed
Description Max Unity Remarks
Voltage supply (Vs) to pin 15 13,5 V
Technical features [ETS 300 200]
Description Min Typical Max Unity Remarks
Working frequency centre 433.82 434.02 433.92 MHz See notes 1 and 2
Voltage supply (Vs) 4.5 5.5 5 V
Absorbed current 4 mA
RF output power (E.R.P.) +10 dBm See note 1
Output impedance pin 11 50 Ω
RF spurious emissions -50 dBm See note 1
Modulation frequency 4 kHz
Input high logic level 4.5 5.5 5 V
Input low logic level 0 0.2 V
Working temperature -20 +80 °C See fig. 5
Working temperature [ETS 300 200] -20 +55 °C See fig. 5
Dimensions 38.1 x 13.2 x 3 mm See Pin-out
Note1: Values have been obtained by applying the test system shown in Fig. 1 and maximum 5,5 V power supply.
Note2: The minimum and maximum showed values are determined by the device’s construction tolerance.
To define the working frequency of the device, add to these values the deviation caused by the thermal variations (see fig. 3).
Note3: To keep the parameters within the limits established by the rules in force, (see para. “Reference Rules”), it is recommended to
supply the circuit with not more than 5,5V and to comply with all the recommendations specified in para “Device usage”.
Messrs AUR°EL declines all responsibilities in case the a.m. recommendations are disregarded.
Lot (Week/Year) Code
1
15
TX- -SAW/433 s Z
Instruction Manual
Technical features are subject to change without notice. AUR°EL S.p.A does not feel responsible for any damage caused by the device’s misuse.
AUR°EL S.p.A. Via Foro dei Tigli, 4 - - 47015 Modigliana (FC) – ITALY Rev. A, 19 09-2001
Tel.: +390546941124 – 2 Fax: +390546941660 Pag di 5
http://www.aurel.it - email: aurel@aurel.it
The declared technical features have been obtained by applying the following testing system:
Device usage
In order to obtain the performances described in the technical specifications and to comply with the
operating conditions, which characterize the Certification, the transmitter has to be mounted on a printed
circuit, and keep into consideration what follows:
5V dc supply
1. The transmitter must be supplied by a very low voltage source, safely protected against short circuits.
2. Maximum voltage variations allowed: ± 0,5 V.
3. De-coupling, next to the transmitter, by means of a minimum 100.000 pF ceramic capacitor.
Ground
1. It must surround at the best the welding area of the transmitter. The circuit must be double layer, with
throughout vias to the ground planes, approximately each 15 mm.
2. It must be properly dimensioned, especially in the antenna connection area, in case a radiating whip
antenna is fitted in it (an area of approximately 50 mm radius is suggested).
TX- -SAW/433 s Z
+5V DC
Power
Supplier
Spectrum
analyzer
Square wave generator :
4 KHz frequency
Out Level 0
÷÷
5V RF 50
ΩΩ
Input
Pin 3
Pin 11
50 Ù
coaxial
cable
connection
TX- -SAW/433 s Z
Instruction Manual
Technical features are subject to change without notice. AUR°EL S.p.A does not feel responsible for any damage caused by the device’s misuse.
AUR°EL S.p.A. Via Foro dei Tigli, 4 - - 47015 Modigliana (FC) – ITALY Rev. A, 19 09-2001
Tel.: +390546941124 – 3 Fax: +390546941660 Pag di 5
http://www.aurel.it - email: aurel@aurel.it
50 Ohm line
1. It must be the shortest as possible.
2. 1,8 mm wide for 1 mm thick FR4 printed circuits and 2,9 mm wide for 1,6 mm thick FR4 printed circuits.
It must be kept 2 mm away from the ground circuit on the same side.
3. On the opposite side a ground circuit area must be present.
Antenna connection
1. It may be utilized as the direct connection point for the radiating whip antenna.
2. It can bear the connection of the central wire of a 50 Ω coaxial cable. Be sure that the braid is welded to
the ground in a close point.
Antenna
1. A whip antenna, 16,5 mm long and approximately 1 mm dia, brass or copper wire made, must be
connected to the RF output of the transmitter (pin 11), (see fig. 2).
2. The antenna body must be keep straight as much as possible and it must be free from other circuits or
metal parts (5 cm minimum suggested distance.)
3. It can be utilized either vertically or horizontally, provided that a good ground plane surrounds the
connection point between antenna and transmitter output.
N.B: As an alternative to the a.m. antenna it is possible to fit the whip model manufactured by
AUR°EL (see related Data Sheet and Application Notes).
By fitting whips too different from the described ones, the EEC Certification is not assured.
Other components
1. Keep the transmitter separate from all other components of the circuit (more than 5 mm).
Fig. 2

Especificaciones del producto

Marca: Aurel
Categoría: receptor
Modelo: TXSAW433

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