User's Manual

Wi-Fi&BT Module Series
FC20 Series Hardware Design
FC20_Series_Hardware_Design Confidential / Released 3 / 47
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 5
Figure Index ................................................................................................................................................. 6
1 Introduction .......................................................................................................................................... 7
1.1. Safety Information ................................................................................................................... 7
2 Product Concept .................................................................................................................................. 9
2.1. General Description ................................................................................................................. 9
2.2. Key Features ......................................................................................................................... 10
2.3. Functional Diagram ............................................................................................................... 12
2.4. Evaluation Board ................................................................................................................... 13
3 Application Interfaces ....................................................................................................................... 14
3.1. General Description ............................................................................................................... 14
3.2. Pin Assignment ...................................................................................................................... 15
3.3. Pin Description ...................................................................................................................... 16
3.4. Power Supply ........................................................................................................................ 19
3.5. WLAN Interface ..................................................................................................................... 21
3.5.1. WAKE_ON_WIRELESS Interface ................................................................................. 22
3.5.2. WLAN_EN ...................................................................................................................... 22
3.5.3. SDIO Interface ............................................................................................................... 22
3.6. BT Interface ........................................................................................................................... 24
3.6.1. BT_EN ............................................................................................................................ 24
3.6.2. PCM Interface ................................................................................................................ 24
3.6.3. UART Interface ............................................................................................................... 25
3.7. Coexistence Interface ............................................................................................................ 26
3.8. Other Interfaces ..................................................................................................................... 27
3.8.1. DBG_TXD Interface ....................................................................................................... 27
3.8.2. 32KHz_IN Interface ........................................................................................................ 27
3.9. Antenna Interface .................................................................................................................. 28
3.9.1. Pin Definition of the RF Antenna .................................................................................... 28
3.9.2. Operating Frequency ..................................................................................................... 28
3.9.3. Reference Design .......................................................................................................... 28
3.9.4. Antenna Requirements .................................................................................................. 29
3.9.5. Install the Antenna with RF Connector .......................................................................... 30
4 Electrical, Reliability and Radio Characteristics ............................................................................ 32
4.1. General Description ............................................................................................................... 32
4.2. Electrical Characteristics ....................................................................................................... 32
4.3. I/O Interface Characteristics .................................................................................................. 33
4.4. Current Consumption ............................................................................................................ 33