WM8940 6162 FL24 M REV3 Schematic and Layout

DOC TYPE:

BOARD REFERENCE:

BOARD TYPE:

WOLFSON DEVICE(S):

DATE:

DOC REVISION:

Schematic and Layout

WM8940-6162-FL24-M-REV3

Customer Mini

WM8940

April 2008

Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Customer Information 1 April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Customer Information 2 April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Item RefDes

1

2

U1

C2 C3 C4 C5 C6 C7

3

4

5

6

7

8

9

R11

R13 R15

R2 R3 R4 R6 R7 R8 R9 R10

R12 R14 R16 R17 R18

C1

H8 H9 H11 H12

PCB1

U2

Unpop

10

11

12

H1 J1 J2 J3 J4

TP25 TP26 TP27 TP28 TP29 TP30

TP1 TP2 TP4 TP5 TP7 TP8 TP9

TP10 TP11 TP12 TP13 TP14 TP15

TP16 TP17 TP19 TP20 TP21 TP23

TP24

Customer Information

Description

Silicon Surface Mount Microphone,

Unamplified

4.7uF 0603 SMD Ceramic Capacitor

6.3V X5R

33R 0603 SMD chip resistor 1% 0.063W

47K 0603 SMD chip resistor 1% 0.063W

0R 0603 SMD chip resistor 1% 0.063W

Manufacturer

Knowles

Acoustics

Murata

Multicomp

Multicomp

Multicomp

1uF 0805 SMD Ceramic Capacitor 10V X7R

2x8 2.54mm pitch PCB Socket Strip

VERTICAL

PCB

WM8940 Mono Codec with Speaker Driver

Multicomp

SAMTEC

Wolfson

Microelectronics

Wolfson

Microelectronics

1x2 PCB Pin Header 0.1" VERTICAL

1.32mm PCB Test Terminal BLACK

1.32mm PCB Test Terminal RED

3

Harwin

VERO

Vero

Manufacturer's Part

Number

SPM0102NE3-2

GRM188R60J475KE19D

MC 0.063W 0603 1% 33R

MC 0.063W 0603 1% 47K

MC 0.063W 0603 0R

N0805R105KCT

SSQ-108-02-G-D

WM8940-6162-FL24-M

REV3

WM8940GEFL/V

M20-9990245

20-2136

20-313141

April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Top Silkscreen

Customer Information 4 April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Customer Information

Top Layer

5

Layer 2

GND Plane

April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Customer Information

Layer 3

POWER Plane

6

Bottom Layer

April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

If you require more information or require technical support, please contact the Wolfson Microelectronics Applications group through the following channels:

Email: [email protected]

Telephone Apps: +44 (0) 131 272 7070

Fax: +44 (0) 131 272 7001

Mail: Applications Engineering at the address on the last page or contact your local Wolfson representative.

Additional information may be made available on our web site at: http://www.wolfsonmicro.com

Customer Information 7 April 2008, Rev 1.0

WM8940-6162-FL24-M-REV3

Schematic and Layout

Wolfson Microelectronics plc (“Wolfson”) products and services are sold subject to Wolfson’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement.

Wolfson warrants performance of its products to the specifications in effect at the date of shipment. Wolfson reserves the right to make changes to its products and specifications or to discontinue any product or service without notice. Customers should therefore obtain the latest version of relevant information from Wolfson to verify that the information is current.

Testing and other quality control techniques are utilised to the extent Wolfson deems necessary to support its warranty. Specific testing of all parameters of each device is not necessarily performed unless required by law or regulation.

In order to minimise risks associated with customer applications, the customer must use adequate design and operating safeguards to minimise inherent or procedural hazards.

Wolfson is not liable for applications assistance or customer product design. The customer is solely responsible for its selection and use of Wolfson products. Wolfson is not liable for such selection or use nor for use of any circuitry other than circuitry entirely embodied in a Wolfson product.

Wolfson’s products are not intended for use in life support systems, appliances, nuclear systems or systems where malfunction can reasonably be expected to result in personal injury, death or severe property or environmental damage. Any use of products by the customer for such purposes is at the customer’s own risk.

Wolfson does not grant any licence (express or implied) under any patent right, copyright, mask work right or other intellectual property right of Wolfson covering or relating to any combination, machine, or process in which its products or services might be or are used. Any provision or publication of any third party’s products or services does not constitute

Wolfson’s approval, licence, warranty or endorsement thereof. Any third party trade marks contained in this document belong to the respective third party owner.

Reproduction of information from Wolfson datasheets is permissible only if reproduction is without alteration and is accompanied by all associated copyright, proprietary and other notices (including this notice) and conditions. Wolfson is not liable for any unauthorised alteration of such information or for any reliance placed thereon.

Any representations made, warranties given, and/or liabilities accepted by any person which differ from those contained in this datasheet or in Wolfson’s standard terms and conditions of sale, delivery and payment are made, given and/or accepted at that person’s own risk. Wolfson is not liable for any such representations, warranties or liabilities or for any reliance placed thereon by any person.

ADDRESS:

Wolfson Microelectronics plc

Westfield House

26 Westfield Road

Edinburgh

EH11 2QB

United Kingdom

Tel :: +44 (0)131 272 7000

Fax :: +44 (0)131 272 7001

Email :: [email protected]

Customer Information 8 April 2008, Rev 1.0