TMUX1574DYYR datasheet(28/44 Pages) TI

Part #	TMUX1574DYYR

Description	TMUX1574 Low-Capacitance, 2:1 (SPDT) 4-Channel, Powered-Off Protected Switch with 1.8 V Logic

PDF	44 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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28 / 44 page

SEL

S1A

S1B

S2A

S2B

VDD

S4A

S4B

S3A

GND

TMUX1574

Via to GND plane

Wide (low inductance)

trace for power

S3B

TMUX1574

SCDS391C – OCTOBER 2018 – REVISED DECEMBER 2019

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Product Folder Links: TMUX1574

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Layout Guidelines (continued)

Decouple the VDD pin with a 0.1-μF capacitor, placed as close to the pin as possible. Make sure that the

capacitor voltage rating is sufficient for the VDD supply.

High-speed switches require proper layout and design procedures for optimum performance.

Keep the input lines as short as possible.

Use a solid ground plane to help reduce electromagnetic interference (EMI) noise pickup.

Do not run sensitive analog traces in parallel with digital traces. Avoid crossing digital and analog traces if

possible, and only make perpendicular crossings when necessary.

11.2 Layout Example

Figure 46. Example Layout

TMUX1574DYYR Datasheet(PDF) 28 Page - Texas Instruments