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WM8940 Datasheet(PDF) 6 Page - Wolfson Microelectronics plc |
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WM8940 Datasheet(HTML) 6 Page - Wolfson Microelectronics plc |
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6 / 85 page  WM8940 Pre-Production w Pre-Production, Rev 3.0, February 2007 6 PIN DESCRIPTION PIN NAME TYPE DESCRIPTION 1 MICBIAS Analogue Output Microphone bias 2 AVDD Supply Analogue supply 3 AGND Supply Analogue ground 4 DCVDD Supply Digital Supply (Core) 5 DBVDD Supply Digital supply (Input/Output) 6 DGND Supply Digital ground 7 ADCDAT Digital Output ADC digital audio data output 8 DACDAT Digital Input DAC digital audio data input 9 FRAME Digital Input / Output DAC and ADC sample rate clock or frame synch 10 BCLK Digital Input / Output Digital audio port clock 11 MCLK Digital Input Master clock input 12 CSB/GPIO Digital Input / Output 3-Wire control interface chip select or GPIO pin. 13 SCLK Digital Input 3-Wire control interface clock Input / 2-Wire control interface clock input 14 SDIN Digital Input / Output 3-Wire control interface data Input / 2-Wire control interface data input 15 MODE / GPIO Digital Input Control interface mode selection pin or GPIO pin. 16 MONOOUT Analogue Output Mono output 17 SPKOUTP Analogue Output Speaker output positive 18 SPKGND Supply Speaker ground 19 SPKOUTN Analogue Output Speaker output negative 20 SPKVDD Supply Speaker supply 21 AUX Analogue Input Auxiliary analogue input 22 VMID Reference Decoupling for midrail reference voltage 23 MICN Analogue Input Microphone negative input (common mode) 24 MICP Analogue Input Microphone positive input Note: 1. It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB. 2. Refer to the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB Footprints” |
Similar Part No. - WM8940_07 |
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Similar Description - WM8940_07 |
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