SWRU612 December   2023 CC3300 , CC3301 , CC3351

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Overview
  5. 2Schematic Considerations
    1. 2.1 Schematic Reference Design
    2. 2.2 Power Supply
      1. 2.2.1 Power Input/Output Requirements
      2. 2.2.2 Power-Up Sequence
        1. 2.2.2.1 SOP Modes
    3. 2.3 Clock Source
      1. 2.3.1 Fast Clock
      2. 2.3.2 Slow Clock
        1. 2.3.2.1 Slow Clock Generated Internally
        2. 2.3.2.2 Slow Clock Using an External Oscillator
    4. 2.4 Radio Frequency (RF)
    5. 2.5 Digital Interfaces
      1. 2.5.1 Reset
      2. 2.5.2 Secure Digital Input Output (SDIO)
        1. 2.5.2.1 SDIO Timing Diagram - Default Speed
        2. 2.5.2.2 SDIO Timing Diagram - High Speed
      3. 2.5.3 Serial Peripheral Interface (SPI)
        1. 2.5.3.1 SPI Timing Diagram
      4. 2.5.4 Universal Asynchronous Receiver-Transmitter (UART)
      5. 2.5.5 Serial Wire Debug (SWD)
      6. 2.5.6 Coexistence
  6. 3Layout Considerations
    1. 3.1 Layout Reference Design
      1. 3.1.1 Reference Design Layout
      2. 3.1.2 BP-CC3301 Design Layout
      3. 3.1.3 M2-CC3301 Design Layout
    2. 3.2 IC Thermal Pad
    3. 3.3 Radio Frequency (RF)
    4. 3.4 XTAL
    5. 3.5 Power Supplies
    6. 3.6 SDIO

2.1 Schematic Reference Design

It is recommended to follow the provided CC33xx reference design and guidelines as close as possible to achieve the capabilities of the CC33xx listed in the device-specific data sheet as well as to pass certification. The recommended schematic design is shown from the CC330x Reference Design Files.

GUID-20231204-SS0I-KXVZ-LKS8-0WGW3PGRBB14-low.svg Figure 2-1 Reference Schematic of Engine Area
Table 2-1 Bill of Materials
Item Designator of Reference Quantity Value Part Number Manufacturer Description Package Reference
1 C1, C2, C3, C4, C5 5 0.1 μF GRM033C71A104KE14D Murata CAP, CERM, 0.1 μF, 10 V, ±10%, X7S, 0201
Matching component:
CAP, CERM, 10 pF, 50 V, ± 5%, C0G/NP0, 0201		 0201
2 C6, C7 2 1 μF GRM033D70J105ME01D Murata Chip Multilayer Ceramic Capacitors for General Purpose, 0201, 1.0μF, X7T, +22%/-33%, 20%, 6.3V 0201
3 C8 1 1 μF GRM155R70J105MA12D Murata CAP, CERM, 1 μF, 6.3 V, ± 20%, X7R, 0402 0402
4 C9 1 10 pF GJM0335C1E100JB01D Murata

CAP, CERM, 10 pF, 25 V, ± 5%, C0G/NP0, 0201

 0201
5 C10, C11 2 6.8 pF GJM0335C1H6R8BB01 Murata Chip Multilayer Ceramic Capacitors for General Purpose, 0201, 6.8pF, C0G, 30ppm/°C, 0.25pF, 50V 0201
6 R1 1 150 Ω RC0201FR-7D150RL YAGEO

RES, 150, 1%, 0.05 W, 0201

 0201
7 CC1 1 CC3301NG0ARSBR Texas Instruments CC3301NG0ARSBR- 2.4GHz Wi-Fi 6 and Bluetooth Low Energy 5.2 Combo Transceiver WQFN40
8 Y2 1 TZ3877AAAO44 Tai-Saw Technology Crystal Unit SMD 2.0x1.6 40.0MHz SMT4_2MM05_1MM65
9 FL1 1 DEA162450BT-1295A1 TDK

2.45 GHz Center Frequency Band Pass RF Filter, 100 MHz Bandwidth, 1.8 dB 0603, 3 PC Pad

 SMT_FILTER_1MM60_0MM80
10 Optional: Y1 1 1 LFSPX0073707REEL IQD Frequency Products Optional: 32.768 kHz XO (Standard) CMOS Oscillator 1.8V Enable/Disable 4-SMD, No Lead SMT4_2MM0_1MM6
  1. The slow clock can be generated internally. An external slow clock can be optionally used to consume less power than sourcing the slow clock internally.