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WM8976 Datasheet(PDF) 5 Page - Wolfson Microelectronics plc |
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WM8976 Datasheet(HTML) 5 Page - Wolfson Microelectronics plc |
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5 / 108 page  Pre-Production WM8976 w PP Rev 3.0 April 2006 5 PIN DESCRIPTION PIN NAME TYPE DESCRIPTION 1 LIP Analogue input Mic Pre-amp positive input 2 LIN Analogue input Mic Pre-amp negative input 3 L2/GPIO2 Analogue input Line input/secondary mic pre-amp positive input/GPIO2 pin 4 DNC Do not connect Leave this pin floating 5 DNC Do not connect Leave this pin floating 6 DNC Do not connect Leave this pin floating 7 LRC Digital Input / Output DAC and ADC Sample Rate Clock 8 BCLK Digital Input / Output Digital Audio Port Clock 9 ADCDAT Digital Output ADC Digital Audio Data Output 10 DACDAT Digital Input DAC Digital Audio Data Input 11 MCLK Digital Input Master Clock Input 12 DGND Supply Digital ground 13 DCVDD Supply Digital core logic supply 14 DBVDD Supply Digital buffer (I/O) supply 15 CSB/GPIO1 Digital Input / Output 3-Wire Control Interface Chip Select / GPIO1 pin 16 SCLK Digital Input 3-Wire Control Interface Clock Input / 2-Wire Control Interface Clock Input 17 SDIN Digital Input / Output 3-Wire Control Interface Data Input / 2-Wire Control Interface Data Input 18 MODE Digital Input Control Interface Selection 19 AUXL Analogue input Left Auxillary input 20 AUXR Analogue input Right Auxillary input 21 OUT4 Analogue Output Buffered midrail Headphone pseudo-ground, or Right line output or MONO mix output 22 OUT3 Analogue Output Buffered midrail Headphone pseudo-ground, or Left line output 23 ROUT2 Analogue Output Second right output, or BTL speaker driver positive output 24 SPKGND Supply Speaker ground (feeds speaker amp and OUT3/OUT4) 25 LOUT2 Analogue Output Second left output, or BTL speaker driver negative output 26 SPKVDD Supply Speaker supply (feed speaker amp only) 27 VMID Reference Decoupling for ADC and DAC reference voltage 28 AGND Supply Analogue ground (feeds ADC and DAC) 29 ROUT1 Analogue Output Headphone or Line Output Right 30 LOUT1 Analogue Output Headphone or Line Output Left 31 AVDD Supply Analogue supply (feeds ADC and DAC) 32 MICBIAS Analogue Output Microphone Bias Note: It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB. Refer to the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB Footprints” |
Similar Part No. - WM8976_06 |
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Similar Description - WM8976_06 |
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