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Product Detailed Parameters
- Description：USB3.1 Super-Speed 11Gbps Switch
- Series：-
- Mfr：Dioo Microcircuits Co., Ltd.
- Package：Tape & Reel (TR)
- Applications：Telecommunications, USB
- Multiplexer/Demultiplexer Circuit：2:01
- Switch Circuit：SPDT
- Number of Channels：2
- On-State Resistance (Max)：8Ohm
- Voltage - Supply, Single (V+)：1.5V ~ 5V
- Voltage - Supply, Dual (V±)：-
- -3db Bandwidth：11GHz
- Features：Bi-Directional, Break-Before-Make, SATA, USB 3.0, USB 3.1
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：-
- Package / Case：18-UFQFN Exposed Pad
- Supplier Device Package：18-QFN (2x3)
- Grade：-
- Qualification：-
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Overview
The DIO3340QN18 is a two-pair, 2:1 data switch designed for USB Super Speed Gen1 and Gen2 protocols. It supports bidirectional operation with a bandwidth of 11 GHz (typical) and handles data rates up to 11 Gbps. The device operates on a VDD supply voltage ranging from 1.5 V to 5.0 V. Key electrical parameters include a typical insertion loss of -0.9 dB at 2.5 GHz, low active power consumption of 15 μA at 3.6 V, and off-isolation of -27 dB at 2.5 GHz. It provides ±3 kV HBM ESD protection and functions within an operating temperature range of -40°C to 85°C.
Feature Summary
- Supports high-speed data transmission protocols including USB 3.0, USB 3.1, 10GE, Thunderbolt, and SAS 3.0.
- Optimized for Type-C reversible cable switching applications in mobile devices.
- Minimizes channel-to-channel skew and crosstalk for superior signal integrity.
- Includes built-in ±3 kV Human Body Model ESD protection.
Applications
- Smartphones
- Tablets
- Notebooks
- PCIe motherboards
- CSI camera arrays
Procurement Notes
Verify the specific package variant when ordering. The DIO3340QN18 designation corresponds to the QFN2*3-18 package configuration. Confirm that the required tape and reel quantity matches the standard packaging specification of 3000 units per reel. Ensure control pins are held HIGH or LOW during operation to prevent floating states.
Selection Notes
Select this component for designs requiring a compact solution for USB Type-C port switching. The wide VDD input range allows compatibility with various system power rails. Consider the QFN2*3-18 package dimensions for PCB layout constraints. Verify that the application environment stays within the specified -40°C to 85°C operating temperature range.
Part Context
The DIO3340QN18 belongs to the DIO3340 series of USB switches manufactured by Dioo Microcircuits. This series addresses the growing demand for high-speed connectivity in portable electronics. The QN18 suffix specifically identifies the physical package type as QFN2*3-18, distinguishing it from other variants like the CN18 which uses a QFN2*2-18 package.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Dioo Microcircuits resources for potential cross-references or alternative components within the same product family.
