STA1102RUTR

Overview

The STA1102RUTR is a serial data signal re-driver designed for eSATA applications, supporting data rates up to 3 Gbps in compliance with SATA rev 2.6 specification. It integrates two differential-pair channels with a flow-through pinout to minimize internal jitter and simplify board layout. The device operates on a single 3.3 V ± 10% supply voltage within an ambient temperature range of 0 °C to 85 °C. Key electrical characteristics include a typical active mode supply current of 80 mA at 3 Gbps and a maximum data propagation delay of 400 ps. It features integrated 50 Ω input termination resistors and low capacitance on all channels.

Feature Summary

• Integrates adjustable input equalizer and 1-bit programmable pre-emphasis to compensate for signal attenuation over long PCB tracks and lossy cables.
• Includes squelch detector functionality to monitor input signal validity and prevent noise response while supporting OOB signaling.
• Supports hardware and auto low power modes to reduce consumption when the device is disabled or idle.
• Features precise on-chip 50 Ω ± 10% differential input termination resistors, eliminating the need for external components.

Applications

• eSATA signal re-driving for host controllers and storage devices
• Extending trace lengths on printed circuit boards where signal integrity is compromised
• High-speed serial data transmission systems requiring compliance with SATA specifications

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific ordering code matches the required package and tape-and-reel configuration. Review the latest datasheet revision history for any updates to electrical parameters or mechanical dimensions before finalizing procurement orders.

Selection Notes

Select this component for designs requiring signal regeneration for eSATA interfaces operating at 1.5 Gbps or 3 Gbps. Ensure the design accommodates the QFN20 (4 x 4 mm) footprint and provides adequate thermal management given the junction-to-ambient thermal coefficient. Verify that the system power supply remains within the 3.0 V to 3.6 V recommended operating range.

Part Context

The STA1102RUTR belongs to the STA1102R family of high-speed serial data re-drivers manufactured by STMicroelectronics. This series is engineered to maintain signal integrity in high-bandwidth serial communication links. The UTR suffix indicates the device is supplied in a tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult STMicroelectronics directly for potential obsolescence management or alternative product recommendations compatible with eSATA signal re-driving requirements.