ZHCSF59A October 2014 – July 2016 TS5A22364-Q1
PRODUCTION DATA.
8 Detailed Description
8.1 Overview
The TS5A22364-Q1 is a 2-channel single-pole double-throw (SPDT) analog switch designed to operate from 2.3-V to 5.5-V power supply. The device features negative signal swing capability that allows signals below ground to pass through the switch without distortion. Additionally, the TS5A22364-Q1 includes an internal shunt switch, which automatically discharges any capacitance at the NC or NO terminals when they are not connected to COM. This reduces the audible click-and-pop noise when switching between two sources. The break-before-make feature prevents signal distortion during the transferring of a signal from one path to another. Low On-state resistance, excellent channel-to-channel On-state resistance matching, and minimal total harmonic distortion (THD) performance are ideal for audio applications.
8.2 Functional Block Diagram
8.3 Feature Description
8.3.1 Click-and-Pop Reduction
The 50-Ω shunt switches on the TS5A22364-Q1 automatically discharge any capacitance at the NC or NO terminals when they are not connected to COM. This reduces the 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.
8.4 Device Functional Modes
Table 1 shows the function table for the TS5A22364-Q1.
Table 1. Function Table
| IN | NC TO COM, COM TO NC |
NO TO COM, COM TO NO |
|---|---|---|
| L | ON | OFF |
| H | OFF | ON |