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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：0°C ~ 70°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 TMUXHS4412RUAR is a high-speed bidirectional passive switch providing four differential channels in a 2:1 multiplexer or 1:2 demultiplexer configuration. It supports data rates up to 20Gbps and operates with a single supply voltage of 3.3V or 1.8V. The device features a –3dB differential bandwidth of 13GHz, an on-resistance maximum of 8Ω, and ultra-low active power consumption of 320μA. It utilizes adaptive common-mode voltage tracking within a 0V to 1.8V range and is housed in a 42-pin WQFN package measuring 9mm by 3.5mm.
Feature Summary
- Provides bidirectional passive switching for four differential channels supporting PCIe 4.0 and USB 4.0 interfaces
- Features adaptive common-mode voltage tracking to maintain signal integrity across varying voltage ranges
- Delivers excellent dynamic characteristics including low insertion loss and minimal added jitter at high frequencies
Applications
- PC and notebook motherboard lane switching
- Data center and enterprise computing infrastructure
- Gaming, home theater, and entertainment systems
- Medical applications and test equipment
- Aerospace and defense electronics
Procurement Notes
Verify the specific ordering suffix RUAR corresponds to the required reel quantity and tape specifications before finalizing procurement. Confirm that the industrial temperature grade matches the operational environment requirements. Ensure proper ESD handling protocols are followed during storage and assembly due to the sensitivity of the high-speed input/output pins.
Selection Notes
Select this component when designing systems requiring flexible routing of high-speed differential signals without active signal conditioning. Verify that the host controller can provide the necessary SEL and PD control signals. Ensure the PCB layout accommodates the 42-pin WQFN footprint and provides adequate thermal relief for the exposed pad to manage heat dissipation effectively.
Part Context
This part belongs to the Texas Instruments TMUXHS4412 series of high-speed analog switches. It is designed specifically for applications demanding low signal distortion and high bandwidth. The device serves as a critical interconnect solution in modern computing platforms where multiple high-speed peripherals need to share limited interface lanes efficiently.
Replacement Considerations
The DS160PR421 and DS160PR412 are pin-to-pin compatible alternatives offering integrated linear redriver capabilities for signal conditioning. These substitutes should be considered if the application requires extended reach or compensation for significant channel loss beyond what the passive switch provides.
