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WM8352 Datasheet(PDF) 10 Page - Wolfson Microelectronics plc |
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WM8352 Datasheet(HTML) 10 Page - Wolfson Microelectronics plc |
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10 / 336 page  WM8352 Production Data w PD, February 2011, Rev 4.4 10 3 PIN DESCRIPTION Notes: Pins are listed in alphabetical order by name. NAME LOCATION(S) TYPE POWER DOMAIN DESCRIPTION ADCDATA M7 Digital Output DBVDD Digital audio output (typically from on-chip audio ADC to external IC) AUX1 H11 Analogue Input LINE Auxiliary ADC input AUX1 (Special function for connection to temperature-sensing NTC resistor in battery pack) AUX2 J13 Analogue Input LINE Auxiliary ADC input AUX2 AUX3 H13 Analogue Input LINE Auxiliary ADC input AUX3 AUX4 C9 Analogue Input LINE Auxiliary ADC input AUX4 AVDD M8 Supply Analogue supply for audio CODEC BATT E1, E2, D2 Analogue I/O Main battery power connection (can draw power or charge battery) BCLK L8 Digital I/O DBVDD Bit clock signal for digital audio interface CREF H3 Analogue Output VRTC Decoupling for VREF reference voltage (connect capacitor here) CONF0 J1 Digital Input VRTC Start-up configuration pin 0 CONF1 K1 Digital Input VRTC Start-up configuration pin 1 DACDATA N7 Digital Input DBVDD Digital audio input (typically from external IC to on-chip audio DAC) DCVDD N5 Supply Digital core supply; powers digital core of audio CODEC DBVDD N6 Supply Digital I/O buffer supply; powers digital audio interface, control interface and pins GPIO4 to GPIO9 DGND M5 Supply Digital ground; return path for DCVDD and DBVDD supplies FB1 C6 Analogue Input PV1 DC-DC1 feedback pin FB2 A12 Analogue Input VP2 DC-DC2 feedback pin FB3 D11 Analogue Input PV3 DC-DC3 feedback pin FB4 C3 Analogue Input PV4 DC-DC4 feedback pin FB5 C4 Analogue Input VP5 DC-DC5 feedback pin FB6 A10 Analogue Input PV6 DC-DC6 feedback pin GND F6, F7, F8, G6,G7, G8, H6, H7, H8, C7, C8 Supply Quiet ground connection for audio CODEC. Note that DC-DC Converters use a separate ground connection. GPIO0 L1 Digital I/O VRTC General Purpose Input/Output pin 0 GPIO1 M2 Digital I/O VRTC General Purpose Input/Output pin 1 GPIO2 M1 Digital I/O VRTC General Purpose Input/Output pin 2 GPIO3 N1 Digital I/O VRTC General Purpose Input/Output pin 3 GPIO4 N3 Digital I/O DBVDD General Purpose Input/Output pin 4 GPIO5 L5 Digital I/O DBVDD General Purpose Input/Output pin 5 GPIO6 M4 Digital I/O DBVDD General Purpose Input/Output pin 6 GPIO7 N4 Digital I/O DBVDD General Purpose Input/Output pin 7 GPIO8 L6 Digital I/O DBVDD General Purpose Input/Output pin 8 GPIO9 L7 Digital I/O DBVDD General Purpose Input/Output pin 9 GPIO10 B11 Digital I/O LINE General Purpose Input/Output pin 10 GPIO11 C10 Digital I/O LINE General Purpose Input/Output pin 11 GPIO12 A11 Digital I/O LINE General Purpose Input/ Output pin 12 HIVDD D3 Analogue Output Analogue output from power management unit which determines highest supply from Line, Battery or USB. HPCOM J12 Analogue Input HPVDD Headphone output amplifier noise compensation input HPGND L13 Supply HPVDD Headphone ground; return path for HPVDD supply |
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