WM FL24-EV1-REV3 Schematic and Layout WOLFSON DEVICE(S):

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1 WM FL4-EV-REV DOC TYPE: BOARD REFERENCE: BOARD TYPE: WOLFSON DEVICE(S): DATE: DOC REVISION: WM FL4-EV-REV Customer Main WM8950 March 008 Rev. Customer Information March 008, Rev.

2 WM FL4-EV-REV Schematic Sheet : Functional Diagram Customer Information March 008, Rev.

3 WM FL4-EV-REV Sheet : S/PDIF Interface Customer Information March 008, Rev.

4 WM FL4-EV-REV Sheet : Software Control Customer Information 4 March 008, Rev.

5 WM FL4-EV-REV Sheet 4: Level Shift Customer Information 5 March 008, Rev.

6 WM FL4-EV-REV Sheet 5: Analogue Input Customer Information 6 March 008, Rev.

7 WM FL4-EV-REV Sheet 6: WM8950 Customer Information 7 March 008, Rev.

8 WM FL4-EV-REV Sheet 7: Analogue Output Customer Information 8 March 008, Rev.

9 WM FL4-EV-REV Sheet 8: Power Customer Information 9 March 008, Rev.

10 WM FL4-EV-REV Sheet 9: Reference Tables Customer Information 0 March 008, Rev.

11 WM FL4-EV-REV Bill Of Materials (BOM) Item RefDes Description Manufacturer Manufacturer's Part Number Qty J8.5mm Jack Socket 6.5mm Centre Height Technik Industrial TSH565 U 74ALVC Bit Dual Supply Bus Transceiver SSO Philips 74ALVC6445DL L.uH 0 Surface Mount Inductor '0A series' Epcos B84AK00 4 J9 J5 J8 Phono Socket PCB mount BLACK Dragon City RS09 - Black 5 J Phono Socket PCB mount YELLOW Dragon City RS09 - Yellow 6 J5 Phono Socket PCB mount RED Dragon City RS-09 Red 7 J9 Phono Socket PCB mount WHITE Dragon City RS-09 White 8 H x6.54mm pitch PCB Pin Header VERTICAL Harwin M H x8.54mm pitch PCB Pin Header VERTICAL Harwin M J0 J J J J4 J7 J0 J J4 x PCB Pin Header 0." VERTICAL Harwin M SW SW SW4 SW5 SW6 x.54mm Header Vertical Harwin M J6 J8 J J6 x6.54mm Header Vertical Harwin M Q Q Q TN000T N- Channel MOSFET SOT Vishay TN000K-T-E 4 J9 SMB Connector PCB Mount 50 Ohm VERTICAL Amphenol SMB5B-GT0G-50 5 J 6-way Centronics/IEE488 PCB mountable Connector Customer Information March 008, Rev.

12 WM FL4-EV-REV Item RefDes Description Manufacturer Manufacturer's Part Number Qty 6 L 47uH 0 Surface Mount Inductor 'PA series' Panasonic ELJPA470KF 7 SW7 BF000 SPNO PCB mount switch Omron BF C6 C7 C6 C0 C9 0pF 0805 SMD Ceramic Capacitor 50V X7R Phycomp C7 0.0uF 0805 SMD Ceramic Capacitor 50V X7R Phycomp 0805R0K9B 0 C C C C4 C5 C0 C C C5 C7 C C C5 C40 C4 C4 0.uF 0805 SMD Ceramic Capacitor 50V X7R Phycomp 0805R04K9B 6 C5 4.7nF 060 SMD Ceramic Capacitor 50V X7R AVX 0605C47KATA C C4 0.uF 060 SMD Ceramic Capacitor 6V X7R Phycomp 060R04K7B P P P P4 Hexagonal brass M size spacer 0mm length Harwin R TP TP TP TP4 TP5 TP6.mm PCB Test Terminal BLACK VERO TP7 TP8 TP9.mm PCB Test Terminal RED Vero SC SC SC SC4 Slotted Panhead Screw - M thread; mm long Roebuck PFP W W W W4 Plain M size washer Roebuck PFP C C8 C9 C0 C C4 C6 C 4.7uF 0805 SMD Ceramic Capacitor 6V X5R Kemet C0805C475K4PAC 8 9 R6 R7 R8 47k 06 SMD chip 4 resistor array 5% 0.06W Phycomp R6 K 060 SMD chip resistor % 0.06W MC 0.06W 060 %K Customer Information March 008, Rev.

13 WM FL4-EV-REV Item RefDes Description Manufacturer Manufacturer's Part Number Qty R R R5 R 0R 060 SMD chip resistor % 0.06W MC 0.06W 060 0R 4 R9 0K 0805 SMD chip resistor % 0.W MC 0.W 0805 % 0K R4 00K 0805 SMD chip resistor % 0.W MC 0.W 0805 % 00K 4 R7 R9 R4 K 0805 SMD chip resistor % 0.W MC 0.W 0805 % K 5 R 0R 0805 SMD chip resistor % 0.W MC 0.W 0805 % 0R 6 R R7 9K 0805 SMD chip resistor % 0.W MC 0.W 0805 % 9K 7 R R4 R5 4K SMD chip resistor % 0.W MC 0.W 0805 % 4K7 8 R4 R R8 47K 0805 SMD chip resistor % 0.W MC 0.W 0805 % 47K 9 R0 60R 0805 SMD chip resistor % 0.W MC 0.W 0805 % 60R 40 R7 680R 0805 SMD chip resistor % 0.W MC 0.W 0805 % 680R 4 R8 R R R6 R8 R40 0R 0805 SMD chip resistor % 0.W MC 0.W R 6 4 R6 0R 06 SMD chip resistor MC 0.5W 06 0R 4 C8 C9 C9 C8 uf 0805 SMD Ceramic Capacitor 0V X7R N0805R05KCT 4 44 SW DIL Switch 6-Way Rocker Grayhill 76SB06T 45 U6 DS8 5V active Low Power-On-Reset chip SOT Dallas Semiconductor DS8R J J J J4 J5 J6 J7 4mm Non-Insulated Panel Socket 6A PJP 0I 7 Customer Information March 008, Rev.

14 WM FL4-EV-REV Item RefDes Description Manufacturer Manufacturer's Part Number Qty 47 LNK_J LNK_J LNK_J4 0." OPEN JUMPER LINK RED Protech LNK_H_ LNK_H_ LNK_H_ LNK_H_4 LNK_H_ LNK_H_ LNK_H_ LNK_J LNK_J7 LNK_J0 LNK_SW LNK_SW LNK_SW4 LNK_SW5 LNK_SW6 0." OPEN JUMPER LINK YELLOW Protech R0 75R 0805 SMD chip resistor % 0.5W Neohm CRG0805%75R0 50 D KP-0SYC 0805 SMD Chip LED YELLOW Kingbright KP-0SYC 5 U : Ratio 96KHz SPDIF Digital Audio transformer SOIC Scientific Conversion SC98-04LF 5 U TORX76 Digirtal Audio Optical Receiver Toshiba TORX76(F) 5 U5 CS847 96KHz Audio Transceiver Crystal Semiconductor CS847-CSZ 7 U4 WM8950 ADC with Mic In QFN Wolfson Microelectronics WM8950GEFL/V Customer Information 4 March 008, Rev.

15 WM FL4-EV-REV Item RefDes Description Manufacturer Manufacturer's Part Number Qty Unpop 54 J4.5mm Jack Socket 6.5mm Centre Height Technik Industrial TSH J0 Phono Socket PCB mount RED Dragon City RS-09 Red 56 J Phono Socket PCB mount WHITE Dragon City RS-09 White 57 R45 k 060 SMD chip resistor % 0.06W MC 0.06W 060 % K 58 J7 J x PCB Pin Header 0." VERTICAL Harwin M C48 00uF CASE T Surface Mount 6.V AVX TACT07M006XTA 60 C47 C5 C5 0pF 0805 SMD Ceramic Capacitor 50V X7R Phycomp C44 C45 C46 0.uF 0805 SMD Ceramic Capacitor 50V X7R Phycomp 0805R04K9B 6 C8 C C6 C7 pf 0805 SMD Ceramic Capacitor 00V NPO AVX 0805A0JATA 4 6 R R4 5k6 060 SMD chip resistor % 0.06W MC 0.06W 060 % 5K6 64 R9 00R 0805 SMD chip resistor % 0.W MC 0.W 0805 % 00R 65 R4 R44 0K 0805 SMD chip resistor % 0.W MC 0.W 0805 % 0K 66 R4 47K 0805 SMD chip resistor % 0.W MC 0.W 0805 % 47K 67 R5 R 0R 0805 SMD chip resistor % 0.W MC 0.W R 68 L 0R 06 Resistor on 0 Inductor site MC 0.5W 06 0R 69 R R5 R9 R0 49R SMD chip resistor % 0.5W Rohm MCR0EZHEF49R9 4 Customer Information 5 March 008, Rev.

16 WM FL4-EV-REV Item RefDes Description Manufacturer Manufacturer's Part Number Qty Unpop 70 C4 C4 C49 0uF 6. Dia.5 pitch Oscon Through Hole Cap. 5V 0% Sanyo 5SC0M 7 C50 0uF 0 Dia 5 pitch Low Impedance TH Cap. 5V 0% Panasonic EEUFCV Customer Information 6 March 008, Rev.

17 WM FL4-EV-REV Layout Top Silkscreen Customer Information 7 March 008, Rev.

18 WM FL4-EV-REV Generic Board Configuration Customer Information 8 March 008, Rev.

19 WM FL4-EV-REV Application Support If you require more information or require technical support, please contact the Wolfson Microelectronics Applications group through the following channels: Telephone Apps: +44 (0) Fax: +44 (0) 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: Customer Information 9 March 008, Rev.

20 WM FL4-EV-REV Important Notice 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 6 Westfield Road Edinburgh EH QB United Kingdom Tel :: +44 (0) Fax :: +44 (0) : apps@wolfsonmicro.com Customer Information 0 March 008, Rev.

21 WM FL4-EV-REV Revision History REVISION DATE ORIGINATOR CHANGE.0 4/0/008 BC Initial release. 0//08 BC Headings changed Customer Information March 008, Rev.

WM DS28-EV2-REV1 Schematic and Layout

WM DS28-EV2-REV1 Schematic and Layout DOC TYPE: BOARD REFERENCE: BOARD TYPE: WOLFSON DEVICE(S): SCHEMATIC AND LAYOUT WM8741-6060-DS28-EV2-REV1 Customer Standalone WM8741 DATE: October 2008 DOC REVISION: Rev 1.0 Customer Information 1 SCHEMATIC