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OPERATION GUIDE

OG_STD-601B_v40e

Circuit Design, Inc.

17

10.7 "@H" Default RF transmit power setting

Changes

the current and default RF transmit power.

Specify the RF transmit power following

'@H'

with the ASCII code of two

characters.
The default setting is enabled when the power is turned on again.

Value: '1''0' : 10 mW

'0''5' : 5 mW

'0''1' : 1 mW

Example: Change the current and default RF transmit power to 5 mW.

Control command: @H05
Control response: *H05

10.8 "@U" UART bit rate setting

Sets the UART bit rate.

Specify the UART bit rate following

'@U'

with the ASCII code of two characters.

The default setting is 19.2 kbps. The default setting can be changed with the "@O" command.

Value: '9''6' : 9.6 kbps

'1''9' : 19.2 kbps
'3''8' : 38.4 kbps

Example: Change the UART bit rate to 9.6 kbps.

Control command: @U96
Control response: *U96

10.9 "@O" Default UART bit rate setting

Changes

the current and default UART bit rate.

Specify the UART bit rate following

'@O'

with the ASCII code of two characters.

The default setting is enabled when the power is turned on again.

Value: '9''6' : 9.6 kbps

'1''9' : 19.2 kbps
'3''8' : 38.4 kbps

Example: Change the current and default UART bit rate to 9.6 kbps.

Control command: @O96
Control response: *O96

Caution: The newly-set default UART bit rate is enabled just after the power is turned on again and

UART communication can not be established with the old UART bit rate anymore.

Summary of Contents for STD-601

Page 1: ...res electrical and radio knowledge for setup and operation To ensure proper and safe operation please read this operation guide thoroughly prior to use Please keep this operation guide for future refe...

Page 2: ...setting 15 10 3 D Default frequency channel setting 15 10 4 B RF bit rate setting 16 10 5 G Default RF bit rate setting 16 10 6 P RF transmit power setting 16 10 7 H Default RF transmit power setting...

Page 3: ...onforms to the EN 300 220 standard The transceiver uses a transparent input output interface enabling users to use their own protocols 2 Features and applications Features Small 20 x 32 x 5 mm SMD RF...

Page 4: ...t 4 5 g Interface specifications Item Specification Unit Remarks UART interface for command setting Bit rate 9 6 19 2 38 4 kbps No parity Data length 8 bits Stop bit 1 bit Output TXD L 0 to 0 4 H Vcc...

Page 5: ...n Frequency drift 1 1 ppm year Initial frequency tolerance 1 5 1 5 ppm 2 The temperature range where transmission and reception are possible but the specification is not guaranteed in the ranges over...

Page 6: ...e 9600 bps Ch 12 5 kHz 50 dB RF bit rate 4800 bps Intermodulation f 200k f 100k 50 dB Blocking 2 MHz 10MHz 70 dB Spurious radiation 1000 MHz 60 57 dBm Conducted 50 1000 MHz 60 47 dBm Conducted 50 RSSI...

Page 7: ...CC The GND terminal should be connected to a wide GND plane 3 VCC Input 3 0 5 0 Power supply terminal Connect to the regulated 3 0 to 5 0V DC 4 TXSEL Input 0 to 0 15 Vcc 0 4 to Vcc TX select terminal...

Page 8: ...e sure to perform communication with the bit rate previously set Can be changed with the command See 10 8 U UART bit rate setting Default settings for UART communication Bit rate 19 2 kbps Data length...

Page 9: ...check the error code output from the TXD terminal See 10 12 Error response 16 NC Do not connect 17 DI Input 0 to 0 15 Vcc 0 4 to Vcc Transmission data input terminal Input data corresponding to the R...

Page 10: ...434 5500 14 0E 433 2500 49 31 433 6875 84 54 434 1250 119 77 434 5625 15 0F 433 2625 50 32 433 7000 85 55 434 1375 120 78 434 5750 16 10 433 2750 51 33 433 7125 86 56 434 1500 121 79 434 5875 17 11 43...

Page 11: ...the STD 601 and the controller The length of connection wire between the STD 601 and the controller should be within 20 cm STD 601 1 RF 2 GND 3 VCC 5 RXSEL 4 TXSEL 13 RXD 14 TXD 15 INT 17 DI 18 DO GND...

Page 12: ...OPERATION GUIDE OG_STD 601B_v40e Circuit Design Inc 12 7 Block diagram...

Page 13: ...OPERATION GUIDE OG_STD 601B_v40e Circuit Design Inc 13 8 External dimensions...

Page 14: ...Inc 14 9 Recommended foot print Do not place traces ground or components on the mounting surface above shadow area Connect the GND terminals to a wide GND plane Those GND terminals function as a groun...

Page 15: ...hen issuing the default setting commands D G H O confirm that the power supply is stable Turning off the power during the command issue may damage the data to be stored 10 2 C Frequency channel settin...

Page 16: ...default RF bit rate Specify the RF bit rate following G with the ASCII code of two characters The default setting is enabled when the power is turned on again Value 4 8 4 8 kbps 9 6 9 6 kbps Example C...

Page 17: ...ault setting is 19 2 kbps The default setting can be changed with the O command Value 9 6 9 6 kbps 1 9 19 2 kbps 3 8 38 4 kbps Example Change the UART bit rate to 9 6 kbps Control command U96 Control...

Page 18: ...will be returned 10 11 K Image rejection calibration Performs calibration on the image rejection of the receiver part Calibration is required if the temperature changes more than 20 C If there is a te...

Page 19: ...alue Error name Description 0 1 Command format error The issued command format is wrong 0 2 Out of channel setting range The specified channel is outside the setting range 0 3 Initial setting error In...

Page 20: ...d response timing Command Tre Response time Unit Command Tre Response time Unit Cxx 600 us Dxx 8 8 ms Bxx 3 5 ms Gxx 8 8 ms Pxx 700 us Hxx 8 2 ms Uxx 100 us Oxx 77 ms R 1 5 ms K 100 to 120 ms Power on...

Page 21: ...ERATION GUIDE OG_STD 601B_v40e Circuit Design Inc 21 Initial setting error output timing Power Error response at TXD E03 or E04 Power on High level indicates an error in initial setting IN 15 to 500 m...

Page 22: ...n Inc 22 12 RSSI characteristics Measurement frequency 434 0000 MHz Modulation Unmodulated Measurement temperature 25 C 5 C RSSI levels were obtained with the R command RSSI accuracy is within 5 dB in...

Page 23: ...d preamble pattern is 11001100 of more than 10 ms more than 20 ms is better ID code An ID code is a unique code to identify own system from other systems The receiver determines if the received data i...

Page 24: ...the STD 601 to internally obtain temperature information needed for the image rejection calibration request If a command issue or TX RX switching is constantly repeated within a duration of 200 ms a r...

Page 25: ...f reflow cycles 1 N2 reflow conducting reflow soldering in a nitrogen atmosphere increases the solder flow too greatly enabling wicking to occur The above profile is an ordinal example Make sure that...

Page 26: ...601 was performed using the following antenna 1 4 whip antenna 2 14 dBi Only antennas with same type and lesser gain can be used with this module If you use an antenna other than the recommended ante...

Page 27: ...cuits and reverse connections may result in overheating and damage and must be avoided at all costs Ensure that the power supply has been switched off before attempting any wiring work The case is con...

Page 28: ...Version Date Description 0 91 June 2015 Preliminary 1 0 June 2015 2 0 Mar 2016 Correction of erroneous description interface voltage addition of notes P13 P26 3 0 May 2016 Correction of erroneous des...

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