4
Specifications
4.1 General
All measurements made per TIA-603-B
Size (inches) ....................................................................................................2.11 X 3.40 X 0.6
Vpwr input Voltage .........................................................................................................5-8V DC
Average current draw, unit off......................................................................................... <250uA
Average current draw, normal operation, receiving ......................................................... <60mA
SLEEP mode (SLEEP pin grounded) current draw ......................................................... <25mA
Current draw when transmitting data ....................................................................<0.6A at 1/2W
Power supply ripple and noise limit......................................................................... <50mV RMS
Frequency Stability........................................................................................ better than ±5ppm
Serial Port Baud Rates.......................................... 300, 1200, 2400, 4800, 9600, 19200, 57600
Over-the-air baud rates (programmable) ........................................................ 2400, 4800, 9600
Operating temperature range.............................................................................. -30ºC to +60ºC
Storage temperature range ................................................................................. -30ºC to +70ºC
TX-RX and RX-TX turn-around time ................................................................................ <50mS
Power on time to operational ......................................................................................... <500mS
Sleep to ON time.............................................................................................................. <60mS
4.2 Transmitter
RF Power output, 5V DC in.......................................................................... 0.5 watts (+27dBm)
RF Power output, 8V DC in......................................................................... 1.0 watts (+30 dBm)
Maximum Duty Cycle 5V DC in............................................... 50% over full temperature range
............................................................................................................. 100% below 35ºC (95ºF)
Maximum Duty Cycle 8V DC in............................................................................................ 50%
Maximum Transmit frequency deviation ..................................................................... ± 2.25kHz
Occupied bandwidth......................................................................................................... 11 kHz
TX Spurious outputs...................................................................................................... < -70dBc
4.3 Receiver
RX sensitivity (1% BER)
4800bps ........................................................................................................................ -113dBm
2400bps ........................................................................................................................ -118dBm
RX selectivity...................................................................................................................... -60dB
RX intermodulation rejection ........................................................................... -65dB at 2400bps
4.4 User Input and Output Signals
Voltage Levels........................................................................3.3V CMOS, 5-volt tolerant inputs
Modem handshake signals .................................................................................. RTS, CTS, CD
RF I/O......................................................................................................................50 ohm SMA
Power ......................................................................................................... B+ input and Ground
