ASNT5173

Overview

The ASNT5173-PQC is a broadband tunable data and clock phase shifter fabricated in SiGe technology. It provides an adjustable delay range of 135 ps at 13 GHz and 140 ps at 1 GHz, with absolute delay stability of ±15 ps across the -40°C to +125°C temperature range. The device supports data rates up to 17 Gbps and clock frequencies up to 13 GHz, featuring fully differential CML input and output interfaces with internal 50Ω termination. Output amplitude is adjustable from 0 to 0.8 V single-ended via a tuning port with 1 GHz bandwidth. Power consumption is 495 mW under a single ±3.3V supply configuration.

Feature Summary

• Broadband operation supporting high-speed data and clock signals up to 17 Gbps
• Low jitter performance suitable for precision measurement and test equipment
• Integrated amplitude control allowing adjustable single-ended output swing
• Flexible power supply architecture compatible with positive or negative rail configurations

Applications

• High-speed measurement and test equipment requiring precise signal timing alignment
• Data communication systems utilizing CML logic interfaces
• Clock distribution networks requiring variable delay adjustment

Procurement Notes

Verify the complete part number including the package suffix, such as ASNT5173-PQC, to ensure correct pinout and manufacturer specifications. Confirm that the procurement source provides documentation compliant with RoHS standards per directive 2011/65/EU. Ensure handling procedures account for the QFN package requirements, specifically regarding thermal dissipation through the exposed pad.

Selection Notes

Select this component when a wide delay adjustment range is required alongside low jitter performance for high-frequency signals. Verify that the system design accommodates the specific CML interface requirements and internal termination characteristics. Consider the thermal management needs associated with the 495 mW power consumption and the necessity of soldering the center heat slug to the appropriate ground plane for optimal reliability.

Part Context

The ASNT5173 is manufactured by Advanced Science And Novel Technology Company, Inc., located in Torrance, CA. It is built using SiGe technology to ensure high performance and yield. The device is housed in a standard 24-pin QFN package, designed for efficient heat dissipation and integration into high-density PCB layouts.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

FAQ

What is the maximum data rate supported by the ASNT5173?

The ASNT5173 supports data rates up to 17 Gbps.

How is the output amplitude controlled?

Output amplitude is controlled via the differential tuning port tnp/tnn, allowing for adjustable single-ended amplitude from 0 to 0.8 V.

What are the recommended power supply configurations?

The device can operate with either a negative supply (Vcc = 0.0V, Vee = -3.3V) or a positive supply (Vcc = +3.3V, Vee = 0.0V).