FSA553 Series

Dual SPST Depletion Mode Audio Switch with Negative Swing

Catalog

Dual SPST Depletion Mode Audio Switch with Negative Swing

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Switch Circuit	-3db Bandwidth	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Multiplexer/Demultiplexer Circuit	Applications	On-State Resistance (Max) [Max]	Voltage - Supply, Single (V+) [Max]	Voltage - Supply, Single (V+) [Min]	Number of Channels [custom]
ON Semiconductor FSA553UCX	Surface Mount	85 °C	-40 °C	9-UFBGA WLCSP	SPST	200 MHz	1.22	9-WLCSP	1.22	1:1	Audio	800 mOhm	3 V	1.5 V	2

Catalog

Dual SPST Depletion Mode Audio Switch with Negative Swing

Key Features

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• Dual SPST Depletion Switch

• Normally Closed when VCC < 0.2 V

• Switches Configurable through Select Pins

• VSW: -1.5 V to +1.5 V

• RON: 0.4 Ώ (Typical)

• RFLAT< 0.01 Ώ (Typical)

• THD+N: -104 dB (Typical)

• OIRR: -78 dB (Typical)

Description

The FSA553 is a high-performance dual single-pole single-throw (SPST x 2) audio switch. The Depletion technology allows the device to conduct signals when there is no VCCavailable and to isolate signals when VCCis present. During signal conduction, the Depletion gate control allows the FSA553 to achieve excellent THD+N performance while consuming minimal power.