SWRA797 September   2024 CC1312PSIP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 RF Function and Frequency Range
    2. 1.2 LP-EM-CC1312PSIP
  5. 2Software – Certified PHYs
    1. 2.1 14dBm Tx and Rx Port
      1. 2.1.1 WB-DSSS
      2. 2.1.2 TI 15.4
      3. 2.1.3 PowerG PHY
      4. 2.1.4 mioty PHY
      5. 2.1.5 WiSun PHY
    2. 2.2 20dBm Tx Port
      1. 2.2.1 WB-DSSS PHY
      2. 2.2.2 TI 15.4 PHY
      3. 2.2.3 PowerG PHY
      4. 2.2.4 mioty PHY
      5. 2.2.5 Wi-SUN PHY
  6. 3Hardware
    1. 3.1 Recommended Layout
      1. 3.1.1 4-Layer Design
      2. 3.1.2 2-Layer Design
      3. 3.1.3 GND Vias
      4. 3.1.4 Maximum Track Length
    2. 3.2 Antennas
      1. 3.2.1 Certified Antennas
      2. 3.2.2 Cross-Linking Certified Antennas
    3. 3.3 Reusing of FCC ID and IC
      1. 3.3.1 Documentation Supplied to the TCB
      2. 3.3.2 Permissive Change Policy
        1. 3.3.2.1 Class 1 Permissive Change (C1PC)
        2. 3.3.2.2 Class 2 Permissive Change (C2PC)
        3. 3.3.2.3 Class 3 Permissive Change (C3PC)
      3. 3.3.3 Changes in the FCC ID or IC
      4. 3.3.4 Re-use of FCC ID and IC Certifications Step-by-Step
    4. 3.4 Recommended Production Testing
  7. 4References

2 Software – Certified PHYs

There is a selection of PHYs available that have been certified with the CC1312PSIP. Refer to the Software Development Kit (SDK) in 4.4 for more information for a particular PHY. These PHYs include WB-DSSS, TI 15.4, MIOTY, WiSUN and PowerG. The MIOTY and PowerG allow up to 20dBm, TI 15.4 allows 19dBm, WiSUN allows 17dBm, and WB-DSSS allows 15dBm. Refer to Table 2-1 for an overview of the different PHYs that are FCC certified. There are additional PHYs supported by the CC1312 and have been validated but not all are FCC certified.

Table 2-1 Overview of Link budget Summary of the Different Certified PHYs
PHY Mode Tx_max (dBm) Rx_min (dBm) Link Budget (dB)
WiSun Mode #1b, 50kbps, 25kHz Deviation, 2-GFSK, 98kHz RX, 200kHz Channel Spacing, Min-Max Frequency: US 902.2-927.8 MHz 17 -104 121
WiSun Mode #2a, 100kbps, 25kHz Deviation, 2-GFSK, 137kHz RX Bandwidth, 200kHz Channel Spacing, Min-Max Frequency: US 902.2-927.8MHz 17 -101 118
WiSun Mode #3, 150kbps, 37.5kHz Deviation, 2-GFSK, 273kHz RX Bandwidth, 400kHz Channel Spacing, Min-Max Frequency: 902.4-927.6MHz 17 -96 113
WiSun Mode #4a, 200kbps, 50kHz Deviation, 2-GFSK, 273kHz RX Bandwidth, 400kHz Channel Spacing, Min-Max Frequency: 902.4-927.6MHz 17 -97 114
WiSun Mode #5, 300kbps, 75kHz Deviation, 2-GFSK, 285kHz RX Bandwidth, 600kHz Channel Spacing, Min-Max Frequency: 902.6-927.2MHz 17 -94 111
WB-DSSS 30kbps (480ksps), DSSS = 1:8 15 -106 121
WB-DSSS 60kbps (480ksps), DSSS = 1:4 15 -105 120
WB-DSSS 120kbps (480ksps), DSSS = 1:2 15 -103 118
WB-DSSS 240kbps (480ksps), DSSS = 1:1 15 -101 116
TI 15.4

SimpleLink Long Range, 5kbps (20ksps), 5kHz Deviation, 2-GFSK,

34kHz RX Bandwidth, FEC = 1:2, DSSS = 1:2

 19 -117 136
TI 15.4 50kbps, 25kHz Deviation, 2-GFSK, 98kHz RX Bandwidth 19 -108 127
TI 15.4 200kbit/s 100kHz Deviation, 2-GFSK, 273kHz RX Bandwidth 19 -103 122
PowerG 50kbps, 25kHz Deviation, 2-GFSK, 98kHz RX Bandwidth 20 -108 128
MIOTY 2.38kbps, 915.257-916.658MHz, 28.6kHz channel spacing 20 -119 139

The default settings in the SDK must be used when selecting the CC1312PSIP. Deviating from these default settings can impact the FCC Certification when operating in the frequency band of 902MHz to 928MHz. If the settings are changed then the FCC Certification is not valid and new tests are required at an official FCC test house.

In order not to jeopardize the re-use of the FCC certification, then the following settings for the output power should not be exceeded.