FSA557: Dual SPST Depletion Mode Audio Switch with Negative Swing

Datasheet: Low Supply Signal Bypass IC
Rev. P0 (203kB)
Product Overview
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Product Change Notification
The FSA557 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 FSA557 to achieve excellent THD+N performance while consuming minimal power.
Features   Benefits
     
  • Dual SPST Enhancement Switch
 
  • 290mΩ, THD+N: -113dB
  • Dual SPST Depletion Switch
 
  • 220mΩ, THD+N: -110 dB
  • VSW: -1.5 to +5.5V
 
  • Large operating range
  • null
   
Applications   End Products
  • Battery powered devices
  • Consumer audio
 
  • Wireless headphones
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FSA557UCX Active 
Pb-free
Halide free
FSA557 WLCSP12 1.620x1.635x0.457 567ZW 1 260 Tape and Reel 3000 $0.5333
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 9,356

Product
Description
Pricing ($/Unit)
Compliance
Status
Channels
Number of Switches
Configuration
Icc Max (µA)
ron Max (Ω)
VCC Min (V)
VCC Max (V)
Package Type
FSA557UCX  
 $0.5333 
Pb
H
 Active   
2
4
4PST
0.5
0.5
1.65
5.5
WLCSP12 1.620x1.635x0.457
Case Outlines
567ZW   
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