DRF1276DM datasheet(9/13 Pages) DORJI

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DRF1276DM

Revision 2.72

May. 2017

9/13

RF_factor

RF_BW

RF data rate

Sensitivity

4096

125

293 bps

-138 dBm

2048

125

537 bps

-135 dBm

4096

250

586 bps

-135 dBm

1024

125

977 bps

-132 dBm

2048

250

1074 bps

-132 dBm

4096

500

1172 bps

-132 dBm

512

125

1758 bps

-129 dBm

1024

250

1954 bps

-129 dBm

2048

500

2148 bps

-129 dBm

256

125

3125 bps

-126 dBm

512

250

3516 bps

-126 dBm

1024

500

3908 bps

-126 dBm

128

125

5470 bps

-123 dBm

256

250

6250 bps

-123 dBm

512

500

7032 bps

-123 dBm

128

250

10940 bps

-120 dBm

256

500

12500 bps

-120 dBm

128

500

21880 bps

-117 dBm

Table 6: Sensitivity: RF_Factor & BW

By MCU: Users also can use microcontroller to change the default parameters. The work

mechanism is the same as in PC.

Sync word

ID code

Header

Command

Length

Data CRC

End code

0xAF

0x00

0XAF

LEN

XXXX

0X0D 0X0A

Table 7: DRF1276DM Command Structure

Notes: 1. The ID code is 0x00 0x00 in command.

2. In command column, XX in sending command is 0x80 and in response command is 0x00.

YY is the command type.

TYPE YY

TYPE

0x01 write

0x02 read

0x03 standard 0x04 Central 0x05 Node

Table 8: Command Type and Value

3. Length refers to the data bytes between Length byte and CRC byte which the two bytes are

not calculated in the length.

4. Data refers to the detailed parameters which need to be changed.

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