STD-302S: 869 MHz0 pages

UHF Narrow Band Multi Channel Transceiver

STD-302S

869MHz

The UHF FM narrow band semi-duplex radio module STD-302S 869MHz is suitable for industrial remote control application and telemetry
application operated in 869MHz ISM band. SAW filter and narrow band technique provides reliable data communication in industrial
applications where interference rejection and practical distance range is required. Suitable for feedback systems.

Features
・
・
・
・
・

5mW RF power, 3.0V
Programmable RF channel
Receiver sensitivity -116dBm
Excellent vibration and shock resistance / Mechanical durability
FM narrow band

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

General

Specification

Communication form

Half duplex

Frequency

868 to 870 MHz

Channel step

25 kHz Channel programmable (PLL IC:Fujitsu MB15E03)

Frequency stability

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

Data rate

9,600 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)

Supply voltage

3.0 to 5.5 V

Supply current

46 mA typ (TX) 28 mA typ (RX)

Operating temp. range

-20 to + 60 degree C (Storage : -30 to + 75 degree 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

25g

Parameter

Specification

Transmitter type

PLL synthesizer

RF output power

5 mW at 50 ohm

Deviation

+/- 2.75 kHz (PN9, 9600bps)

DI input level

L = GND, H = 3 V to Vcc

Residual FM noise

0.35 kHz

Spurious emission

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

Adjacent CH leakage power

Receiver part

- 37 dBm (PN9 9600 bps)

Parameter

Specification

Receiver type

Double superheterodyne

IF

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

Maximum input level

10 dBm

Receiver sensitivity

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

Spurious response rejection

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

Adjacent channel selectivity

45 dB ( +/- 25 kHz)

Intermodulation

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

Spurious radiation

- 60 dBm max.

DO output level

L = GND, H = 2.8 V

www.circuitdesign.jp
STD-302S 869MHz ver1.0

Jan. 2016

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