SWAU085F July   2011  – January 2022

 

  1.   Trademarks
  2.   Revision History
  3. 1Requirements
    1. 1.1 System Requirements
    2. 1.2 Configuration Requirements
  4. 2Installation
  5. 3Modes of Operation
    1. 3.1 Serial Port Mode
    2. 3.2 USB Over Android Debug Bridge (ADB) Mode
    3. 3.3 Operational Mode
  6. 4Connection and Firmware Download
    1. 4.1 Register Reads and Writes
    2. 4.2 Power Mode Menu
      1. 4.2.1 Awake Mode
      2. 4.2.2 Listen Mode
      3. 4.2.3 ELP Mode
      4. 4.2.4 Gating Mode
    3. 4.3 Antenna Mode Menu
      1. 4.3.1 Supported Antenna Configuration
      2. 4.3.2 5-GHz Diversity (WL1837MOD and WL1807MOD Only)
  7. 5RX Tab
    1. 5.1 RX Statistics Area
    2. 5.2 Sensitivity Measurements
      1. 5.2.1 Sensitivity Testing Procedure
  8. 6TX Tab
    1. 6.1 TX Packets Section
    2. 6.2 TX Tab Overall Output Power Area
    3. 6.3 TX Tab Tones Area
    4. 6.4 TX Duty Cycle Configuration
    5. 6.5 Output Power Test on the WiLink 8 Device
      1. 6.5.1 TX Testing Procedure
  9. 7Terms and Abbreviations

6.4 TX Duty Cycle Configuration

Figure 6-4 shows the Type, Size, Amount, and Delay options (highlighted in red) used to set the duty cycle in the Packets area of the TX tab.

GUID-4E6F1F6B-6A6D-490F-89C0-47162F1E6F63-low.png Figure 6-4 Duty Cycle Control

For best TX performance, TI recommends setting the duty cycle of the device to less than 40% by selecting the correct packet length and delay time for a specific rate.

Equation 1. GUID-A1BFB2B4-1BCC-4DDB-BBA4-DB44639FECDC-low.png

Based on Equation 1, Table 6-2 and Table 6-3 list calculated values for 30% DC at the most common rates.

Table 6-2 20-MHz BW Rates
Rate 20-MHz BW
Size (Bytes) Delay (µs)
1DSSS 26 938
11CCK 143 700
54OFDM 1539 583
Table 6-3 20-MHz and 40-MHz BW Rates
Rate 20-MHz BW 40-MHz BW
Size (Bytes) Delay (µs) Size (Bytes) Delay (µs)
MCS0 218 705 429 700
MCS7 1528 467 1365 280
MCS15 1495 303 — —