The FSA839 is a high-performance Single-Pole / Double-Throw (SPDT) analog switch for audio applications driven by low voltage (1.8V) baseband processors or ASICs. The device features ultra-low R_ON of 0.8W (maximum) at 4.5V V_CC and operates over the wide V_CC range of 1.65V to 5.5V. The device is fabricated with sub-micron CMOS technology to achieve fast switching speeds and is designed for break-before-make operation.

The FSA839 interfaces between the low-voltage ASIC and regular audio amplifiers and CODECs operating up to a 5.5V supply range. The control circuitry allows for 1.8V (typical) signals on the control pin (Sel).

• Power-Off Isolation (V_CC=0V)
• 0.8W Maximum On Resistance (R_ON ) for 4.5V V_CC
• 0.25W Maximum R_ON Flatness for 4.5V V_CC
• Broad V_CC Operating Range: 1.65V to 5.5V
• Fast Turn-On and Turn-Off Times
• Control Input Switching Thresholds Independent of V_CC
• Break-Before-Make Enable Circuitry
• 0.4mm WLCSP packaging
• ESD Performance:

	HBM: JESD22-A114, I/O to GND:		8kV
	CDM: JESD22-C101:		500V
	EC61000-4-2 Contact / Air:		8kV / 15kV

• Cellular Phone
• Portable Media Player
• PDA