Espressif Systems ESP8684 Series, Руководство по проектированию аппаратного обеспечения, Страница: 4 / 28

List of Illustrations
List of Tables
1 Description of ESP8684 Power-up and Reset Timing Parameters 9
2 Strapping Pins 12
3 Parameter Descriptions of Setup and Hold Times for the Strapping Pins 12
4 IO MUX Pin Functions 13
List of Figures
1 ESP8684 Schematic 6
2 Schematic for the Digital Power Supply Pins 7
3 Schematic for the Analog Power Supply Pins 8
4 ESP8684 Power-up and Reset Timing 9
5 Schematic for the Crystal 10
6 Schematic for the Oscillator 10
7 Schematic for RF Matching 11
8 Setup and Hold Times for the Strapping Pins 12
9 ESP8684 PCB Layout 15
10 Placement of ESP8684 Modules on Base Board 16
11 Keepout Zone for ESP8684 Module’s Antenna on the Base Board 17
12 ESP8684 Power Traces in a Four-layer PCB Design 17
13 ESP8684 Analog Power Traces in a Four-layer PCB Design 18
14 ESP8684 Crystal Oscillator Layout 19
15 ESP8684 RF Layout in a Four-layer PCB Design 20
16 ESP8684 PCB Stack up Design 20
17 ESP8684 Stub in a Four-layer PCB Design 21
Espressif Systems 4
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ESP8684 Series Hardware Design Guidelines v1.1