SN75LVPE3410RNQR

Overview

The SN75LVPE3410RNQR is a quad-channel linear redriver supporting PCIe 1.0, 2.0, and 3.0 up to 8 Gbps. It features a continuous-time linear equalizer (CTLE) providing up to 12 dB boost at 4 GHz. Key electrical parameters include an ultra-low latency of 70 ps, low additive random jitter of 60 fs typical with PRBS data, and excellent return loss of -17 dB at 4 GHz. The device operates on a single 3.3-V supply with internal voltage regulation for noise immunity. Active power consumption is 124 mW per channel. Configuration is supported via pin-strap or SMBus/I2C programming. It supports x2, x4, x8, and x16 bus widths and includes automatic receiver detection. The component is housed in a 4.0 mm × 6.0 mm, 40-pin WQFN package.

Feature Summary

• Protocol agnostic linear redriver architecture enabling seamless support for PCIe link training across Gen 1.0, 2.0, and 3.0 interfaces.
• Integrated continuous-time linear equalizer (CTLE) with programmable high-frequency boost to compensate for inter-symbol interference in lossy channels.
• Automatic receiver detection state machine compliant with PCI Express specifications for hot-plug capable applications.
• Dual configuration interface allowing device control through either pin-strap settings or SMBus/I2C target mode.

Applications

• Desktop PC or motherboard signal conditioning
• Notebook PC interconnect extension
• Data storage system backplanes
• Industrial computer on module designs

Procurement Notes

Verify the ordering suffix RNQR corresponds to the specific tape-and-reel packaging format required for your assembly line. Confirm that the commercial temperature range of 0°C to 70°C aligns with your environmental operating conditions. Ensure design compatibility with the 40-pin WQFN footprint and thermal pad requirements specified in the datasheet.

Selection Notes

Select this component when extending reach for PCIe 3.0 signals up to 8 Gbps is required without adding significant latency. The protocol-agnostic nature allows use in non-PCIe scenarios if receiver detection is disabled. Consider the 124 mW/channel power dissipation and the necessity for adequate PCB thermal relief due to the dense WQFN package layout constraints.

Part Context

This device belongs to Texas Instruments' LVPE series of high-speed linear redrivers designed for signal integrity enhancement. It complements other components in the family by offering four independent channels in a compact form factor. The technology focuses on preserving transmit preset signal characteristics while providing necessary receive-side equalization for long passive channels.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative TI models such as the SN75LVPE3101 for dual-channel requirements or the SN75LVPE5421 for PCIe 5.0 speeds, ensuring interface compatibility and pinout differences are addressed during migration.

FAQ

How is the CTLE equalization boost configured?

Equalization can be set using the EQ0_ADDR0 and EQ1_ADDR1 pins in Pin Mode or by writing to registers via the SMBus/I2C interface in Target Mode.

What is the function of the RX_DET pin?

The RX_DET pin controls the receiver detect state machine, determining whether the device enables PCIe Rx detection logic or acts as a standard buffer with fixed termination.

Can the SN75LVPE3410 be used for protocols other than PCIe?

Yes, it is protocol agnostic and can support SAS and SATA interfaces, particularly when the PCIe-specific receiver detection feature is disabled.