XE1203 データシートの表示（PDF） - Unspecified

部品番号

コンポーネント説明

メーカー

XE1203

433MHz / 868MHz / 915MHz Low-power, integrated UHF transceiver

Unspecified 

Data Sheet

XE1203

Here are examples of LO frequency settings in FSParam_Freq when mode 2 is used.

Byte Address

01010

Bit 7

Bit 0

Byte Address

01011

Bit 7

Bit 0

00000000

00000000

00000000

00000000

11111111

11111111

00000001

00000010

11111111

11111110

Resulting LO setting

Note: reference frequency = 39.0 MHz

F0, where F0 depends on the selected frequency

band (see FSParam_Band )

F0 = 434.0 MHz for the 433-435 MHz band

F0 = 869.0 MHz for the 868-870 MHz band

F0 = 915.0 MHz for the 902-928 MHz band

F0 + 500 Hz

F0 + 2 * 500 Hz

F0 – 500 Hz

F0 – 2 * 500 Hz

5.2.5 DataOut register

The detailed description of the “DataOut” register is given in the next table.

Name

DataOut_Rssi

Reserved

DataOut_MSB_fei

DataOut_LSB_fei

Bits Address

Description

7-6

01100 RSSI output:

0 0 -> lowest level

0 1 -> 2nd level

1 0 -> 3rd level

1 1 -> highest level

5-4

01100 Set to zero

3-0

01100 Fei output (MSB)

7-0

01101 Fei output (LSB)

Ferror = (Br/8)*int(DataOut_MSB_fei & DataOut_LSB_fei)

Where int(x) = integer value of the binary representation of x.

26

D0308-214

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