InputSelect

Shunt

Switch

IN2

IN1

COM2

COM1

NC2

NC1

NO2

OUT+

OUT+

OUT–

OUT–

NO1

TS5A22364

Audio

Source1

Audio

Source2

8-

Speaker

8-

Speaker

Input Select

IN2

IN1

COM2

COM1

NC2

NC1

NO2

OUT+

OUT+

OUT–

OUT–

NO1

TS5A22362

Audio

Source 1

Audio

Source 2

TS5A22362, TS5A22364

www.ti.com

SCDS261D

– MARCH 2008 – REVISED NOVEMBER 2011

APPLICATION BLOCK DIAGRAMS

Figure 1. TS5A22364 Application Block Diagram

Shunt Switch (TS5A22364)

The 50-

Ω shunt switches on the TS5A22364 automatically discharge any capacitance at the NC or NO terminals

when they are unconnected to COM. This reduces audible click-and-pop sounds that occur when switching

between audio sources. Audible clicks and pops are caused when a step DC voltage is switched into the

speaker. By automatically discharging the side that is not connected, any residual DC voltage is removed,

thereby reducing the clicks and pops.

Figure 2. TS5A22362 Application Block Diagram

Negative Signaling Capacity

The TS5A22362 and TS5A22364 dual SPDT switches feature negative signal capability that allows signals below

ground to pass through without distortion. These analog switches operate from a single +2.3-V to +5.5-V supply.

Table 1 shows the input/output signal swing the user can get with different supply voltages.

Copyright

© 2008–2011, Texas Instruments Incorporated

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Product Folder Link(s): TS5A22362 TS5A22364