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Product Detailed Parameters
- Description：IC SW DPST, SPDTX4 8OHM 42WQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：DPST, SPDT
- Multiplexer/Demultiplexer Circuit：1:2, 2:1
- On-State Resistance (Max)：8Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：1.71V ~ 1.91V, 3V ~ 3.6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：130ns, 100ns
- -3db Bandwidth：13GHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-54dB @ 10GHz
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：42-WFQFN Exposed Pad
- Supplier Device Package：42-WQFN (3.5x9)
- Number of Circuits：4
- Grade：-
- Qualification：-
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Overview
The TMUXHS4412IRUAT is a high-speed multiplexer switch IC from Texas Instruments, featuring four differential channels configured as two 2:1 multiplexers or two 1:2 demultiplexers. It supports data rates up to 20 Gbps and offers a -3dB differential bandwidth of 13 GHz. The device operates on a single supply voltage ranging from 1.71 V to 3.6 V, with typical operation at 1.8 V or 3.3 V. Key electrical parameters include a maximum on-resistance of 8.4 Ohms, a propagation delay of 50 ps, and typical off-isolation of -57 dB. It functions within an industrial temperature range of -40°C to +85°C and is housed in a WQFN-42 package.
Feature Summary
- Provides bidirectional passive switching for four differential signal paths
- Supports high-speed interfaces including PCIe 4.0, USB 3.2/4.0, and Thunderbolt 3.0
- Features adaptive common-mode voltage tracking for flexible system integration
Applications
- PC and notebook computers
- Data center and enterprise computing systems
- Gaming, home theater, and entertainment devices
Procurement Notes
Verify the specific suffix 'IRUAT' against the manufacturer's official datasheet to confirm the industrial temperature grade (-40°C to +85°C) and tape-and-reel packaging configuration. Ensure compatibility with the required PCB footprint for the WQFN-42 package during procurement planning.
Selection Notes
Select this component when four independent differential signal paths require high-speed switching with low insertion loss. The industrial temperature rating makes it suitable for demanding environments compared to commercial variants. Verify that the 1.8 V or 3.3 V single-supply requirement aligns with the target system power architecture.
Part Context
This part belongs to the TMUXHS4412 series of high-speed mux/demux switches. It serves as a pin-to-pin compatible alternative to linear redrivers like the DS160PR421 for certain PCIe 4.0 applications. The IRUAT designation specifically denotes the industrial temperature range and surface-mount reel packaging format.
Replacement Considerations
The TMUXHS4412RUAR is a commercially rated version of the same device family. Verify if the extended industrial temperature range of the IRUAT variant is strictly necessary for the application before substituting.
