Functional Diagram - Quectel FC21 Hardware Design

2.3 Functional Diagram

The following figure shows a block diagram of FC21 module and illustrates the major functional parts:

Power supply

Wireless Connectivity Interfaces
- Wi-Fi interface
- BT interface
- Coexistence interface
 Antenna interface

Other interfaces
- DBG_TXD
- 32KHz_IN interface
Figure 1: Functional Diagram of FC21 Module
NOTE
FC21_SA version has 2.4G Filter, FC21_SD version does not have 2.4G Filter.
FC21_Hardware_Design
Wi-Fi&BT Module Series
FC21 Hardware Design
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批注 [RL5]:
FC21_SA 版本带 2.4G Filter，
FC21_SD 版本不带 2.4G Filter.
要不要加这个备注
批注 [RL6R5]: