SWRA536 February   2016 CC2520 , CC2520 , CC2530 , CC2530 , CC2530-RF4CE , CC2530-RF4CE , CC2533 , CC2533 , CC2540 , CC2540 , CC2541 , CC2541 , CC2640 , CC2640 , CC2640R2F , CC2640R2F , CC2640R2F-Q1 , CC2640R2F-Q1 , CC2640R2L , CC2640R2L , CC2650 , CC2650 , CC2650MODA , CC2650MODA

 

  1.   ETSI EN 300 328 RX Blocking Test for Bluetooth Low Energy
    1.     Trademarks
    2. 1 Introduction
    3. 2 ETSI EN 300 328 V2.1.1 Requirement
    4. 3 Test Setup
      1. 3.1 Test Equipment
      2. 3.2 R&S Waveform
      3. 3.3 Connection
      4. 3.4 TX Setup
      5. 3.5 RX Setup
    5. 4 Measurement Data
      1. 4.1 TX CW Blocker Setup
      2. 4.2 Low Channel Sensitivity (2402 MHz)
      3. 4.3 High Channel Sensitivity (2480 MHz)
      4. 4.4 BLE PER vs Blocking Requirement (ETSI EN 300 328 V2.1.1)
    6. 5 References

4.1 TX CW Blocker Setup

Loss for the TX CW blocker through cables, splitter and coupler from the signal generator in the test setup needs to be measured and compensated to get the correct measurement results.

The cable connected to the DUT is connected to the spectrum analyzer and the power level of the TX CW is measured at the different TX CW test frequencies. The difference between the TX CW source output power and the power applied to the DUT is calculated and used to compensate the measurement result presented in Section 4.4.

Table 2. TX CW Blocker Loss

2380.0 MHz 2503.5 MHz 2300.0 MHz 2583.5 MHz
Blocker output [dBm] -30.0 -30.0 -30.0 -30.0
@ Coupler [dBm] -47.8 -47.2 -47.5 -48.1
@ DUT [dBm] -39.9 -39.8 -39.8 -40.5
Loss in test setup [dB] -9.9 -9.8 -9.8 -10.5