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WM8973 Datasheet(PDF) 5 Page - Wolfson Microelectronics plc |
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WM8973 Datasheet(HTML) 5 Page - Wolfson Microelectronics plc |
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Production Data WM8973L w PD Rev 4.2 September 2005 5 PIN DESCRIPTION PIN NO NAME TYPE DESCRIPTION 1 MCLK Digital Input Master Clock 2 DCVDD Supply Digital Core Supply 3 DBVDD Supply Digital Buffer (I/O) Supply 4 DGND Supply Digital Ground (return path for both DCVDD and DBVDD) 5 BCLK Digital Input / Output Audio Interface Bit Clock 6 DACDAT Digital Input DAC Digital Audio Data 7 DACLRC Digital Input / Output Audio Interface Left / Right Clock/Clock Out 8 ADCDAT Digital Output ADC Digital Audio Data 9 ADCLRC Digital Input / Output Audio Interface Left / Right Clock 10 MONOOUT Analogue Output Mono Output 11 OUT3 Analogue Output Analogue Output 3 (can be used as Headphone Pseudo Ground) 12 ROUT1 Analogue Output Right Output 1 (Line or Headphone) 13 LOUT1 Analogue Output Left Output 1 (Line or Headphone) 14 HPGND Supply Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2) 15 ROUT2 Analogue Output Right Output 1 (Line or Headphone or Speaker) 16 LOUT2 Analogue Output Left Output 1 (Line or Headphone or Speaker) 17 HPVDD Supply Supply for Analogue Output Drivers (LOUT1/2, ROUT1/2, MONOUT) 18 AVDD Supply Analogue Supply 19 AGND Supply Analogue Ground (return path for both AVDD) 20 VREF Analogue Output Reference Voltage Decoupling Capacitor 21 VMID Analogue Output Midrail Voltage Decoupling Capacitor 22 MICBIAS Analogue Output Microphone Bias 23 RINPUT3 / HPDETECT Analogue Input Right Channel Input 3 or Headphone Plug-in Detection 24 LINPUT3 Analogue Input Left Channel Input 3 25 RINPUT2 Analogue Input Right Channel Input 2 26 LINPUT2 Analogue Input Left Channel Input 2 27 RINPUT1 Analogue Input Right Channel Input 1 28 LINPUT1 Analogue Input Left Channel Input 1 29 MODE Digital Input Control Interface Selection 30 CSB Digital Input Chip Select / Device Address Selection 31 SDIN Digital Input/Output Control Interface Data Input / 2-wire Acknowledge output 32 SCLK Digital Input Control Interface Clock Input Note: It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB. |
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