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AD1981HD Scheda tecnica(PDF) 9 Page - Analog Devices |
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AD1981HD Scheda tecnica(HTML) 9 Page - Analog Devices |
9 / 16 page AD1981HD Rev. 0 | Page 9 of 16 Table 17. Analog Input/Output Pin Function Descriptions Mnemonic Pin No. I/O Channel Description Function1 PC Beep 12 I N/A Analog Input for PC Beep Pass-Through, Even While in Reset. LI PORT-E_L 14 I Left Line Input (Typically Auxiliary Input). PORT-E_R 15 I Right Line Input (Typically Auxiliary Input). LI PORT-F_L 16 I/O Left Multifunction Analog I/O Jack (Typically Rear Microphone). MIC, LI, LO PORT-F_R 17 I/O Right Multifunction Analog I/O Jack (Typically Rear Microphone). MIC, LI, LO CD_L 18 I Left CD Input, Left Channel. LI CD_GND 19 I Ground CD Input, Ground. LI CD_R 20 I Right CD Input, Right Channel. LI PORT-B _L 21 I Left Multifunction Analog I/O Jack (Typically Front Microphone). MIC, LI PORT-B_R 22 I Right Multifunction Analog I/O Jack (Typically Front Microphone). MIC, LI PORT-C_L 23 I/O Left Multifunction Analog I/O Jack (Typically Rear Line Input). MIC, LI, LO PORT-C_R 24 I/O Right Multifunction Analog I/O Jack (Typically Rear Line Input). MIC, LI, LO PORT-D_L 35 I/O Left Multifunction Analog I/O Jack (Typically Rear Line Output). MIC, LI, LO PORT-D_R 36 I/O Right Multifunction Analog I/O Jack (Typically Rear Line Output). MIC, LI, LO MONO_OUT 37 O - Monaural Output to Telephony Subsystem Speakerphone. LO PORT-A_L 39 O Left Headphone Output, Left Channel. LO, HP PORT-A_R 41 O Right Headphone Output, Right Channel. LO, HP 1 MIC—Microphone capable, includes programmable MIC_BIAS pins and integrated boost amplifier; LI—line level analog inputs; LO— line level analog outputs; HP—headphone support, includes integrated headphone amplifier. Table 18. Filter/Reference Pin Function Descriptions Mnemonic Pin No. I/O Description VREF_FILT 27 O Voltage Reference Filter. MIC_BIAS-B 28 O Programmable Microphone Bias Output. Intended for connection to Port B. MIC_BIAS-C 29 O Programmable Microphone Bias Output. Intended for connection to Port C. MIC_BIAS-F 30 O Programmable Microphone Bias Output. Intended for connection to Port F. MIC_BIAS-D 32 O Programmable Microphone Bias Output. Intended for connection to Port D. Table 19. Power and Ground Pin Function Descriptions Mnemonic Pin No. I/O Description DVSS 4, 7 I Digital Supply Return (Ground). DVDD 1, 9 I Digital Supply Voltage (3.3 V). AVSS 26, 42 I Analog Supply Return (Ground). AVDD 25, 38 I Analog Supply Voltage (5.0 V). AVDD supplies should be well filtered because supply noise degrades audio performance. |
Codice articolo simile - AD1981HD_15 |
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Descrizione simile - AD1981HD_15 |
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