STD-302S 429MHz operation guide

OG_STD-302S-429M_v11e Circuit Design, Inc.
4
OPERATION GUIDE
SPECIFICATIONS
STD-302S 434 MHz All ratings at 25 +/-10 °C unless otherwise noted
General characteristics
Item Units MIN TYP MAX Remarks
Communication method Simplex, Half-duplex
Emission class F1D
Operating frequency range MHz 429.25 429.7375
Operation temperature range °C -20 60 No dew condensation
Storage temperature range °C -30 75 No dew condensation
Frequency drift / year ppm -1 1 TX freq., RX Lo freq.
Initial frequency tolerance ppm -1.5 1.5 TX freq., RX Lo freq.
Dimensions mm 30 x 50 x 9 mm Not including antenna
Weight g 25 g
Electrical specification <Common>
Item MIN TYP MAX Remarks
Oscillation type PLL controlled VCO
Frequency stability (-20 to 60°C) ppm -4 4 Reference frequency at 25 °C
TX/RX switching time ms 15 20 DI/DO
Channel step kHz 12.5
Data rate bps 2400 4800 DO/DI
Max. pulse width ms 15 20 DO/DI
Min. pulse width us 200 DO/DI
Data polarity Positive DO/DI
PLL reference frequency MHz 21.25 TCXO
PLL response ms 30 60 from PLL setting to LD out
Antenna impedance Ω 50 Nominal
Operating voltage V 3.0 5.5
TX consumption current mA 44 48 Vcc = 3.0 V
RX consumption current mA 26 30 Vcc = 3.0 V
Transmitter part
Item MIN TYP MAX Remarks
RF output power mW 5 9 12 Conducted 50 Ω, 429.5 MHz
Deviation kHz ±1.7 ±2.0 ±2.3 PN9 4800 bps
DI input level V 0 5.5 L= GND, H = 3 V- Vcc
Residual FM noise kHz 0.17 DI=L, LPF=20 kHz
Spurious emission dBm -37 -27 Conducted 50 Ω
Adjacent CH power dB 40 PN9 4800 bps
Occupied freq. bandwidth kHz 8.5 PN9 4800 bps