RX selectivity

nRF54LM20A | nRF54LM20B Datasheet

RX selectivity with equal modulation on interfering signal4

Symbol Description Min. Typ. Max. Units
C/I1MBLE,co-channel

1 Mbps Bluetooth LE mode, co-channel interference

5 dB
C/I1MBLE,-1MHz

1 Mbps Bluetooth LE mode, Adjacent (-1 MHz) interference

-3 dB
C/I1MBLE,+1MHz

1 Mbps Bluetooth LE mode, Adjacent (+1 MHz) interference

-7 dB
C/I1MBLE,-2MHz

1 Mbps Bluetooth LE mode, Adjacent (-2 MHz) interference

-29 dB
C/I1MBLE,+2MHz

1 Mbps Bluetooth LE mode, Adjacent (+2 MHz) interference

-43 dB
C/I1MBLE,>3MHz

1 Mbps Bluetooth LE mode, Adjacent (≥3 MHz) interference

-46 dB
C/I1MBLE,image

Image frequency interference

-29 dB
C/I1MBLE,image,1MHz

Adjacent (1 MHz) interference to in-band image frequency

-36 dB
C/I2MBLE,co-channel

2 Mbps Bluetooth LE mode, co-channel interference

5 dB
C/I2MBLE,-2MHz

2 Mbps Bluetooth LE mode, Adjacent (-2 MHz) interference

-4 dB
C/I2MBLE,+2MHz

2 Mbps Bluetooth LE mode, Adjacent (+2 MHz) interference

-7 dB
C/I2MBLE,-4MHz

2 Mbps Bluetooth LE mode, Adjacent (-4 MHz) interference

-28 dB
C/I2MBLE,+4MHz

2 Mbps Bluetooth LE mode, Adjacent (+4 MHz) interference

-45 dB
C/I2MBLE,≥6MHz

2 Mbps Bluetooth LE mode, Adjacent (≥6 MHz) interference

-47 dB
C/I2MBLE,image

Image frequency interference

-28 dB
C/I2MBLE,image, 2MHz

Adjacent (2 MHz) interference to in-band image frequency

-35 dB
C/I125k BLE LR,co-channel

125 kbps Bluetooth LE LR mode, co-channel interference

1 dB
C/I125k BLE LR,-1MHz

125 kbps Bluetooth LE LR mode, Adjacent (-1 MHz) interference

-13 dB
C/I125k BLE LR,+1MHz

125 kbps Bluetooth LE LR mode, Adjacent (+1 MHz) interference

-17 dB
C/I125k BLE LR,-2MHz

125 kbps Bluetooth LE LR mode, Adjacent (-2 MHz) interference

-36 dB
C/I125k BLE LR,+2MHz

125 kbps Bluetooth LE LR mode, Adjacent (+2 MHz) interference

-52 dB
C/I125k BLE LR,>3MHz

125 kbps Bluetooth LE LR mode, Adjacent (≥3 MHz) interference

-55 dB
C/I125k BLE LR,image

Image frequency interference

-35 dB
Figure 11. Selectivity Bluetooth Low Energy (Typical performance; wanted signal at channel 2440 MHz and -67 dBm input level)
Selectivity Bluetooth Low Energy (Typical performance; wanted signal at channel 2440 MHz and -67 dBm input level)
4 Desired signal level at PIN = -67 dBm. One interferer is used, having equal modulation as the desired signal. The input power of the interferer where the sensitivity equals BER = 0.1% is presented.