Specification	FSA8108BUCX

Applications	Cell Phone
Interface	I2C
Mounting Type	Surface Mount
Package / Case	12-UFBGA, WLCSP
Supplier Device Package	12-WLCSP (1.16x1.56)
Voltage - Supply [Max]	4.5 V
Voltage - Supply [Min]	2.7 V

FSA8108 Series

Audio Jack Detection and Configuration Switch, Supports Volume Up/Down & Send/End Keys

Part	Mounting Type	Package / Case	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications	Supplier Device Package	Interface
ON Semiconductor FSA8108BUCX	Surface Mount	12-UFBGA WLCSP	4.5 V	2.7 V	Cell Phone	12-WLCSP (1.16x1.56)	I2C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Bulk	952	$ 0.32

Description

General part information

FSA8108 Series

The FSA8108 is an audio jack detection switch for 3- or 4-pole accessories that detects the audio plug connection. The detection circuit monitors the microphone bias voltage to detect a volume up/down or send/end key press. For system flexibility, the FSA8108 features an I2C port with registers to allow programmability of AC timing specifications.￭ Detects 3- or 4-Pole Audio Accessories￭ Removes Audio Jack Pop-and-Click Caused by MIC Bias￭ Detects Key Press: Volume Up/Down, Send/End￭ Stuck Send/End Key Recovery￭ LDO Output for MIC Bias Voltage