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
