鈥?/div>
Receives digital data
鈥?Baud rates 300 - 2400bps
鈥?Low cost, small size, low current consumption
Application
鈥?Telecommand Systems
鈥?Security Systems
鈥?Alarms
鈥?Radio Data Communications
鈥?Commercial / Industrial Telemetry
Description
The R2705 is a radio data receiver to receive digital data. Baud rates of 300 to 2400 bps can be received (Can be used to 4800bps with
reduced sensitivity). The low cost, small size, low current consumption makes it ideal for various applications.
Technical Data
Supply Voltage
Current Consumption
Receiver Type
Receiving Freq
Oscillation System
Operating Temperature Range
IF Freq
Selectivity
Sensitivity
Type of Demodulation
Occupied Band Width
Baud Rate
Data Output Level
Frequency Response
Dimension
Weight
Usable Transmitter
Antenna
4.5 - 5.5 VDC Absolute maximum 6.5VDC.
3.5mA
Dual Conversion Superheterodyne
27.195MHz (Other freq available on 27.045, 27.145, & 27.455MHz. The
27.455 freq is not available for Australia)
VCO with 10ppm Crystal Controlled reference Oscillator
-5 to 50擄C
10.7 MHz and 455KHz
-6dB at 鹵5kHz
-20dB at 鹵6kHz
Better than -107dBm or 1碌V
Frequency Shift Keying. (FSK)
25KHz at -20dB.
2400 bps with 50% duty cycle (Can be used to 4800bps with reduced
sensitivity)
0-5V
150 to 2400 Hz with 50% duty cycle (Other duty cycles will degrade sensitivity)
39 x 25 x 12mm
13 grams
FMT-2712 Data Transmitter
50 ohms, 27MHz Antenna
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