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Dual SPST Depletion Mode Audio Switch with Negative Swing

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Overview

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 VCC available and to isolate signals when VCC is present. During signal conduction, the Depletion gate control allows the FSA553 to achieve excellent THD+N performance while consuming minimal power.

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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 Î (Typical)
  • RFLAT < 0.01 Î (Typical)
  • THD+N: -104 dB (Typical)
  • OIRR: -78 dB (Typical)

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CAD Models

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Channels

Number of Switches

Configuration

Icc Max (µA)

ron Max (Ω)

VCC Min (V)

VCC Max (V)

Reference Price

FSA553UCX

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CAD Model

Pb

A

H

P

WLCSP-9

1

260

REEL

3000

Y

2

2

SPST

-

0.8

1.5

3

$0.5292

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