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AD1986AJCPZ-RL Scheda tecnica(PDF) 3 Page - Analog Devices |
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AD1986AJCPZ-RL Scheda tecnica(HTML) 3 Page - Analog Devices |
3 / 56 page AD1986A Rev. 0 | Page 3 of 56 NOTES REDUCED SUPPORT COMPONENTS The AD1986A includes many improvements that reduce external support components for particular applications. • Multiple Microphone Sourcing: The MIC_1/2, LINE_IN and C/LFE pins can all be selected as sources for microphone input (boost amplifier). • Multiple VREF_OUT Pins: Each microphone-capable pin group (MIC_1/2, LINE_IN and C/LFE) has separate, software controllable VREF_OUT pins, reducing the need for external biasing components. • Internal Microphone Mixing: Any combination of the MIC_1/2, LINE_IN and C/LFE pins can be summed to produce the microphone input. This removes the need for external mixing components in applications that externally mix microphone sources. • Advanced Jack Presence Detection: Using two codec pins, eight resistors and isolated switch jacks, the AD1986A can detect jack insertion on eight separate jacks. • Internal Microphone/Line In/C/LFE Sharing: On systems that share the microphone with the C/LFE jack no external components are required. The microphone selector can select the LINE_IN pins when the microphone and line input devices are swapped. • Internal Line In/Microphone/Surround Sharing: On systems that share the line in with the surround jack no external components are required. • Dual Headphone Amplifiers: The AD1986A can drive headphones out of the HP_OUT or LINE_OUT pins. |
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