Electronic Components Datasheet Search |
|
FSA801UMX Datasheet(PDF) 3 Page - Fairchild Semiconductor |
|
FSA801UMX Datasheet(HTML) 3 Page - Fairchild Semiconductor |
3 / 12 page © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA801 • Rev. 1.0.3 3 Mode Descriptions The FSA801 has three select pins to control the switching operations, SEL[0], SEL[1], and SEL[2] described in Table 1. Table 1. Selection Truth Table SEL[2] SEL[1] SEL[0] Switch Action Description 0 0 0 OPEN Open all switch paths (device in low-power mode) 0 0 1 USB1, UART Closes USB1 path to D+/D-, default condition (1) - DP_CON connected to DP_HOST1 - DM_CON connected to DM_HOST1 0 1 0 USB2, UART Closes USB2 path to D+/D- - DP_CON connected to DP_HOST2 - DM_CON connected to DM_HOST2 0 1 1 AUDIO Closes audio path to D+/D- only, no microphone switched - DP_CON connected to R_HOST - DM_CON connected to L_HOST 1 0 0 MONO AUDIO with MIC on D+ (2) Closes audio path to DM_CON and microphone on DP_CON pin. This is a mono-audio application. - DP_CON connected to MIC - DM_CON connected to L_HOST 1 0 1 STEREO AUDIO with MIC on VBUS (2) Closes audio path to D+/D- and microphone on VBUS pin. This mode is typically used for stereo headset with microphone. - DP_CON connected to R_HOST - DM_CON connected to L_HOST - VBUS connected to MIC 1 1 0 Undefined Reserved; do not use. 1 1 1 Charger Detection Reset Charger Detection Reset. Selecting this mode for greater than 30 µs resets the FSA801 to check for a charger, the next time a SEL[2:0] state of ‘000’ is applied for more than 30 µs. Notes: 1. The SELECT pins are CMOS inputs and should not be left in a floating condition. Some applications require the UART path be in the CLOSED position on power-up for initial programming of the device under test. If that condition is desired, the three SELECT pins should be pulled to the correct levels with external resistors that should exceed 100 K Ω to reduce the static power consumption. In other applications, adding weak pull-down resistors to GND defaults the device to all paths open (low-power mode). 2. When the audio switch is in the OPEN position, the R and L are terminated to GND with internal termination resistors to discharge any stray capacitance that could cause audio pop. |
Similar Part No. - FSA801UMX |
|
Similar Description - FSA801UMX |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |