FSA551 Series

Dual SPST Depletion Mode Audio Switch

Catalog

Dual SPST Depletion Mode Audio Switch

Part	Multiplexer/Demultiplexer Circuit	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Number of Channels [custom]	On-State Resistance (Max) [Max]	Voltage - Supply, Single (V+) [Max]	Voltage - Supply, Single (V+) [Min]	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Applications	Switch Circuit	Package / Case	-3db Bandwidth
ON Semiconductor FSA551UCX	1:1	Surface Mount	85 °C	-40 °C	2	600 mOhm	3 V	1.5 V	1.22	9-WLCSP	1.22	Audio	SPST	9-UFBGA WLCSP	240 MHz

Catalog

Dual SPST Depletion Mode Audio Switch

Key Features

• Dual SPST

• Depletion Mode Technology

-3 dB Bandwidth: 240 MHz

• VCC-OFF: 1.5 V to 3.0 V

• VCC-ON: 0 V to 0.2 V

• VSW-OFF: -0.3 V to 3 V

• VSW-ON: -0.3 V to 3 V

• RON: 0.38 Ώ Typical

• RONFlat: 0.01 Ώ (Typical)

• THD+N: 0.0005% (Typical)

• Fairchild Green, RoHS Compliant, Halogen Free

Description

The FSA551 is a high-performance dual single-pole single-throw (SPST x 2) audio switch. The Depletion Mode technology allows the device to conduct signals when there is no Vcc available and to isolate signals when Vcc is present. During signal conduction, the Depletion Mode gate control allows the FSA551 to achieve excellent THD+N performance while consuming mimmal power.