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FSA201 Datasheet(PDF) 3 Page - ON Semiconductor |
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FSA201 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 21 page © 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA201 Rev. 1.2.2 2 Pin Assignments GND Vbus 10 L D- D+ R Vaudio D+/R ASel D-/L 2 1 3 4 5 9 8 7 6 10 -- 2 1 3 4 2 1 3 4 5 9 8 7 6 9 8 7 6 Vbus GND 110 9 8 7 6 5 4 3 2 D+ D- R L D+/R D-/L Vaudio ASel Figure 2. MicroPak™ 10-Pin Figure 3. MSOP 10-Pin Pin Descriptions Pin # Name Description 1, 2 D+, D- USB data bus input sources 6 VAUDIO Power supply (audio) 3, 4 R, L Audio right and left input sources 9 ASEL Audio select to override auto USB detect when VAUDIO supply is present 10 VBUS Power supply (USB) and auto USB switch-path select 8, 7 D+/R, D-/L USB and audio common connector ports Truth Table ASEL (1) VAUDIO VBUS L, R D+, D- LOW LOW LOW OFF OFF LOW LOW High (2) OFF ON LOW HIGH (2) LOW ON OFF LOW HIGH (2) HIGH (2) OFF ON HIGH LOW LOW OFF OFF HIGH LOW HIGH (2) OFF ON HIGH HIGH (2) LOW ON OFF HIGH HIGH (2) HIGH (2) ON OFF Notes: 1. ASEL- Internal resistor to GND provides auto-VBUS detect if there is no external connection. Forcing ASEL HIGH when VAUDIO is present overrides the USB path even if VBUS is present. 2. H - Value is the threshold as defined to meet USB2.0 VBUS requirements and audio supply threshold in a system (see DC Tables). |
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