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hardware guide - WSD377

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Compex Systems Pte Ltd | www.compex.com.sg | (+65) 6288 8220 | [email protected] | Last Updated: 24/10/2017 WH HB

Copyright © Compex Systems. All rights reserved. COMPEX and the COMPEX logo, are registered trademarks of Compex Inc.

Atheros and other trademarks are properties of their respective owners. While every effort is made to ensure the information is accurate, 

Compex does not accept liability for any errors or mistakes that may arise. All specifications are subject to change without notice.

No.

Name

Type

Description

No.

Name

Type

Description

1

GND

-

Ground connections

23

NC

-

Floating (Don’t connect to 

ground)

2

WL_BT_ANT

I/O

RF I/O port

24

LPO

I

External Low Power Clock 

input (32.768KHz)

3

GND

-

Ground connections

25

PCM_OUT

O

PCM Data output

4

NC

-

Floating (Don’t connect to 

ground)

26

PCM_CLK

I/O

PCM clock

5

NC

-

Floating (Don’t connect to 

ground)

27

PCM_IN

I

PCM data input

6

HOST_WAKE_

BT

I

HOST to wake-up Bluetooth 

device

28

PCM_SYNC

I/O

PCM sync signal

7

BT_WAKE_

HOST

O

Bluetooth device to wake-up 

HOST

29

NC

-

Floating (Don’t connect to 

ground)

8

NC

-

Floating (Don’t connect to 

ground)

30

NC

-

Floating (Don’t connect to 

ground)

9

VCC33

P

Main power voltage source 

input 3.3V

31

GND

-

Ground connections

10

GND

-

Ground connections

32

NC

-

Floating (Don’t connect to 

ground)

11

NC

-

Floating (Don’t connect to 

ground)

33

GND

-

Ground connections

12

WL_EN

I

Enable pin for WLAN device 

ON: pull high ; OFF: pull low

34

BT_EN

I

Enable pin for Bluetooth 

device 

ON: pull high ; OFF: pull low

13

WL_HOST_

WAKE

O

WLAN to wake-up HOST

35

NC

-

Floating (Don’t connect to 

ground)

14

SDIO_DATA_2

I/O

SDIO data line 2

36

GND

-

Ground connections

15

SDIO_DATA_3

I/O

SDIO data line 3

37

NC

-

Floating (Don’t connect to 

ground)

16

SDIO_DATA_

CMD

I/O

SDIO command line

38

NC

-

Floating (Don’t connect to 

ground)

17

SDIO_DATA_

CLK

I/O

SDIO clock line

39

Debug_UART_

TXD

O

Floating (Don’t connect to 

ground)

18

SDIO_DATA_0

I/O

SDIO data line 0

40

Debug_UART_

RXD

I

Floating (Don’t connect to 

ground)

19

SDIO_DATA_1

I/O

SDIO data line 1

41

UART_RTS_N

O

Bluetooth UART interface

20

GND

-

Ground connections

42

UART_TXD

O

Bluetooth UART interface

21

GPIO11

-

Reserved

43

UART_RXD

I

Bluetooth UART interface

22

VDDIO

P

I/O Voltage supply input 1.8V 

or 3.3V

44

UART_CTS_N

I

Bluetooth UART interface

GPIO Pin Mapping

Summary of Contents for WSD377

Page 1: ...oating Don t connect to ground 8 NC Floating Don t connect to ground 30 NC Floating Don t connect to ground 9 VCC33 P Main power voltage source input 3 3V 31 GND Ground connections 10 GND Ground connections 32 NC Floating Don t connect to ground 11 NC Floating Don t connect to ground 33 GND Ground connections 12 WL_EN I Enable pin for WLAN device ON pull high OFF pull low 34 BT_EN I Enable pin for...

Page 2: ...rved COMPEX and the COMPEX logo are registered trademarks of Compex Inc Atheros and other trademarks are properties of their respective owners While every effort is made to ensure the information is accurate Compex does not accept liability for any errors or mistakes that may arise All specifications are subject to change without notice Schematic Relative Pin Positions ...

Page 3: ...gistered trademarks of Compex Inc Atheros and other trademarks are properties of their respective owners While every effort is made to ensure the information is accurate Compex does not accept liability for any errors or mistakes that may arise All specifications are subject to change without notice Reflow Temperature Profile Please refer to IPC JEDEC standard Peak Temperature 250 C Number of Time...

Page 4: ...rved COMPEX and the COMPEX logo are registered trademarks of Compex Inc Atheros and other trademarks are properties of their respective owners While every effort is made to ensure the information is accurate Compex does not accept liability for any errors or mistakes that may arise All specifications are subject to change without notice Module Dimensions Units are in mm ...

Page 5: ...eserved COMPEX and the COMPEX logo are registered trademarks of Compex Inc Atheros and other trademarks are properties of their respective owners While every effort is made to ensure the information is accurate Compex does not accept liability for any errors or mistakes that may arise All specifications are subject to change without notice Pad Layout Units are in mm ...

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