STD-302N-R: 434 MHz0 pages

UHF Narrow Band Multi Channel Transceiver

STD-302N-R

434MHz

The UHF FM narrow band semi-duplex radio module STD-302 434MHz is suitable for industrial remote control application and telemetry
application operated in 434MHz ISM band. SAW filter and narrow band technique provides reliable data communication in industrial
applications interference rejection and practical distance range is required. Switching time and channel selecting time become remarkably
faster than a conventional transceiver. Suitable for feedback systems.

Features
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10mW RF power, 3.0V
Programmable RF channel
Receiver sensitivity -119dBm
Excellent vibration & shock resistance / Mechanical durability
R&TTE (EN 300 220) / RoHS compliance
FM narrow band
869, 458, 429, 419, 447, 335 MHz also available

Applications
・ Industrial remote control system
・ Telemetry system
・ Data transmission

General

Specification

Communication form

Half-duplex

Frequency

433.050 to 434.775 MHz

Channel step

25kHz Channel programmable (PLL IC: Fujitsu MB15E03)

Frequency stability

+/- 4 ppm (-20 to +60 degree C)

Data rate

9600 bps max. (Pulse width min.100 us, max. 15 ms)

PLL reference frequency

21.25 MHz (TCXO)

PLL response

30 ms typ. (from PLL setting to LD out)

Modulation

FSK

Supply voltage

3.0 to 5.5 V

Supply current

44 mA (TX)

Operating temp. range

-20 to +60 C

TX/RX switching time

15 ms typ. (DI vs valid DO at the same frequency)

Dimension

30 X 50 X 9 mm

Weight

Transmitter
part

Parameter

25 g

(All ratings at 25 degree C unless otherwise noted)

26 mA (RX)
(Storage -30 to + 75 C )

Parameter

Specification

Transmitter type

PLL synthesizer

RF output power

10 mW at 50 ohm

Deviation

2.75 kHz (PN9, 9600 bps)

DI input level

L = GND, H = 3 V to Vcc

Residual FM noise

0.17 kHz

Spurious emission

< -54 dBm (47M - 74M, 87.5M - 118M, 174M - 230M, 470M - 862MHz)
< -36 dBm (Other frequencies below 1000 MHz)
< -30 dBm (Frequencies above 1000 MHz)

Adjacent CH power

Receiver part

-37 dBm (CH 25 kHz, BW = 16kHz, PN9, 9600bps)

Parameter

Specification

Receiver type

Double superheterodyne

IF

21.7 MHz (1st), 450 kHz (2nd)

Maximum input level

10 dBm

Receiver sensitivity

-119 dBm (12dB SINAD )
-116 dBm (BER 1%)
-110 dBm (0 error / 2556 bits)

Spurious response rejection

80 dB (1st Mix), 60 dB (2nd Mix)

Adjacent CH selectivity

50 dB (+/ 25kHz)

Intermodulation

50 dB (f-200 kHz + f-100 kHz)

Spurious radiation

-57 dBm (below 1000MHz) , -47dBm (above 1000MHz)

DO output level

L = GND, H = 2.8V

www.circuitdesign.jp
STD-302N-R 434MHz ver1.0

Oct. 2012

Specifications are subject to change without prior notice

Sales Division

7557-1 Hotaka, Azumino, Nagano 399-8303, Japan
Tel:+81-(0)263-82-1024
Fax:+81-(0)263-82-1016