User's Manual

Bluegiga Technologies Oy
TABLE OF CONTENTS
1 Product description ........................................................................................................................................6
2 Ordering Information......................................................................................................................................7
3 Pinout and terminal descriptions ...................................................................................................................8
4 Interfaces .................................................................................................................................................... 12
4.1 Host interfaces ................................................................................................................................... 12
4.1.1 Host selection ................................................................................................................................ 12
4.1.2 SDIO interface ............................................................................................................................... 12
4.1.3 CSR Serial Peripheral Interface (CSPI) ......................................................................................... 13
4.1.4 SDIO/CSPI deep-sleep control schemes ...................................................................................... 14
4.2 Other interfaces ................................................................................................................................. 16
4.2.1 Debug SPI interface ....................................................................................................................... 16
4.2.2 Bluetooth coexistence .................................................................................................................... 16
4.2.3 Configurable I/O pads .................................................................................................................... 17
5 Power Control and Regulation ................................................................................................................... 18
5.1 Power Control and Regulation ........................................................................................................... 18
5.2 REGEN .............................................................................................................................................. 19
5.3 RESET ............................................................................................................................................... 19
6 Example Application Schematic ................................................................................................................. 20
7 Wi-Fi radio .................................................................................................................................................. 22
7.1 Wi-Fi receiver ..................................................................................................................................... 22
7.2 Wi-Fi transmitter ................................................................................................................................ 22
7.3 Antenna switch for Bluetooth coexistence ......................................................................................... 22
8 Electrical characteristics ............................................................................................................................. 23
8.1 Absolute maximum ratings ................................................................................................................ 23
8.2 Recommended Operating Conditions ............................................................................................... 23
8.3 Input/Output terminal characteristics ................................................................................................. 24
9 RF Characteristics ...................................................................................................................................... 25
10 Power Consumption .............................................................................................................................. 27
11 Physical Dimensions .............................................................................................................................. 28
12 Layout Guidelines .................................................................................................................................. 29
12.1 WF111-A ............................................................................................................................................ 29
12.2 WF111-E ............................................................................................................................................ 29
12.3 WF111-N............................................................................................................................................ 29
12.4 Thermal considerations ..................................................................................................................... 31
12.5 EMC considerations ........................................................................................................................... 31
13 Soldering Recommendations................................................................................................................. 33
14 Product packaging ................................................................................................................................. 34