Wolfson WM8738 User Handbook Manual Download Page 7 | Manualshive

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WM8738-EV1M

WOLFSON MICROELECTONICS LTD

Rev 2.1 August 2002

7

WM8738-EV1B SCHEMATIC

Figure 4 Functional Diagram

Figure 5 Digital Interface

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Summary of Contents for WM8738

Page 1: ...s well as timing and data format requirements This evaluation platform has been designed to allow the user ease of use and give optimum performance in device measurement GETTING STARTED PACKING LIST T...

Page 2: ...x6 pin header H2 All WM8738 device pins are accessible for easy measurement via the 8 pin headers J11 J15 running up each side of the device BOARD INPUT Analogue input to the WM8738 is selectable via...

Page 3: ...4 5 6 OPEN 0 1 ON 1 2 3 4 0 1 SW7 J9 Figure 1 Interfaces HEADERS H1 SIGNAL J15 WM8738 SIGNAL 1 2 MCLK 1 1 DVDD 3 4 GND 2 2 SDOUT 5 6 SLAVE_LRC 3 3 BCLK 7 8 GND 4 4 FMT 9 10 SLAVE_BCLK 5 5 CAP 11 12 G...

Page 4: ...ter only selected SW8 Pins 1 2 SHORT Standard CS8427 BCLK selected Pins 2 3 SHORT Multi rate BCLK selected SW9 Pins 1 2 SHORT Standard CS8427 LRCLK selected Pins 2 3 SHORT Multi rate LRCLK selected J9...

Page 5: ...Pass Filter while putting the switch low short pins 2 3 will enable the internal digital High Pass Filter Figure 2 shows the basic getting started setup required to operate the board In this example...

Page 6: ...tup required if using an external MCLK In this example the data format is set to I2S digital HPF is active and the MCLK is running at 512fs H1 SW1 SW2 J11 J15 J5 J1 J2 J3 H2 J6 J7 J10 1 1 1 1 SW6 SW5...

Page 7: ...WM8738 EV1M WOLFSON MICROELECTONICS LTD Rev 2 1 August 2002 7 WM8738 EV1B SCHEMATIC Figure 4 Functional Diagram Figure 5 Digital Interface...

Page 8: ...WM8738 EV1M WOLFSON MICROELECTONICS LTD Rev 2 1 August 2002 8 Figure 6 Analogue Input Figure 7 Level Shift Buffer...

Page 9: ...WM8738 EV1M WOLFSON MICROELECTONICS LTD Rev 2 1 August 2002 9 Figure 8 Multi Rate Generator Figure 9 WM8738...

Page 10: ...WM8738 EV1M WOLFSON MICROELECTONICS LTD Rev 2 1 August 2002 10 Figure 10 Power...

Page 11: ...WM8738 EV1M WOLFSON MICROELECTONICS LTD Rev 2 1 August 2002 11 WM8738 EV1B PCB LAYOUT Figure 11 Top Layer Silkscreen Figure 12 Top Layer...

Page 12: ...WM8738 EV1M WOLFSON MICROELECTONICS LTD Rev 2 1 August 2002 12 Figure 13 Bottom Layer Figure 14 Bottom Layer Silkscreen...

Page 13: ...CB mount BLACK J8 1 Phono Socket PCB mount RED J13 J16 2 Phono Socket PCB mount WHITE J12 J17 2 Phono Socket PCB mount YELLOW J14 1 SMB Connector PCB Mount 50 Ohm VERTICAL J9 1 CD8427 96KHz Audio Tran...

Page 14: ...equire more information or require technical support please contact Wolfson Microelectronics Applications group through the following channels Email apps wolfsonmicro com Apps Telephone 44 131 272 707...

Page 15: ...product design WM does not warrant or represent that any license either express or implied is granted under any patent right copyright mask work right or other intellectual property right of WM cover...

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