Product Info

RTL8822CE RTL8822CU RTL8822CS COB TSSI MP FLOW
©2019 Realtek Semiconductor Corp.
89
7.7. Verify Bluetooth BLE Tx Performance (BLE 1M)
To measure the DUT BLE Tx power and modulation index to check whether BLE Tx
performance is fine or not. Bluetooth BLE Tx criterion is shown as below. Below Spec is
defined by using 5 dBm as target power at normal temperature 25 degree C. For vender’s Tx
verification, please adapt target power value as your own SPEC.
Test Item
Sub Test
Item
Payload Type
Channel
Criterion
Bluetooth SPEC
BLE Output Power
Average
Power
PRBS9
0/3/19/22/36/39
3 dBm ~ 7dBm
NOTE: Max variation =
target power value +/- 2
dB*
Peak
Power
< 9 dBm
NOTE: Max variation =
target power value + / -
4dB*
Carrie freq. offset &
drift
None
PRBS9
< 20KHz
Modulation
Characteristics
Delta F1
Avg.
BT_PAYLOAD_TYPE_1111_0
000
225 kHz ~ 275 kHz
Delta F2
Max.
BT_PAYLOAD_TYPE_1010
> 185 kHz
F2avg/F1avg
None
> 0.8
Table 33: Bluetooth BLE Tx criterion
*Max variation SPEC only available after doing Tx calibration flow