CIRCUIT DESIGN STD-601 Скачать руководство пользователя страница 22 | Manualshive

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OPERATION GUIDE

OG_STD-601B_v40e

Circuit Design, 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 the input level range of from -110dBm to -20dBm.

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Содержание STD-601

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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