ASNT2112-KMF

Signal Switches, Multiplexers, Decoders Overview

The ASNT2112-KMF is a programmable 1:2 demultiplexer with an integrated full-rate clock and data recovery (CDR) circuit. It operates in CDR mode across a frequency range of 22.2 GHz to 28.2 GHz, utilizing three selectable on-chip voltage-controlled oscillators (VCOs). Alternatively, it supports broadband digital operation using an external full-rate clock input up to 28.2 GHz. The device accepts RZ or NRZ input data formats via CML-compliant differential interfaces. It converts the high-speed serial input into two parallel half-rate NRZ data signals while providing full-rate retimed data outputs for 1:1 CDR functionality.

Signal Switches, Multiplexers, Decoders Feature Summary

• Integrated full-rate CDR with three selectable VCOs for wideband frequency coverage
• Supports both CDR mode and broadband digital mode with external clock input
• Provides half-rate data outputs with toggle synchronization for parallel system alignment
• Includes adjustable sampling point control and peak detection for signal integrity monitoring

Signal Switches, Multiplexers, Decoders Applications

• High-speed optical communication systems requiring data rate conversion
• Parallel interface synchronization between DMUX units and downstream ASICs
• Clock and data recovery applications in broadband digital architectures

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific package configuration and lead times directly with ADSANTEC or authorized distributors. Confirm that the ordering suffix matches the required pinout and thermal specifications. Ensure compatibility with the intended power supply polarity, as the device supports both positive and negative supply configurations. Check for RoHS compliance documentation if required by your manufacturing standards.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a 1:2 demultiplexing function with integrated clock recovery is required within the 22.2 GHz to 28.2 GHz range. Consider the digital mode option if an external full-rate clock source is available instead of relying on internal VCOs. Evaluate the power consumption requirements, noting the typical dissipation at 25 Gbps. Ensure the PCB layout supports the custom 64-pin CQFP package and provides adequate thermal management for the center heat slug.

Signal Switches, Multiplexers, Decoders Part Context

The ASNT2112-KMF belongs to the ASNT21xx series of programmable CDR demultiplexers manufactured by Advanced Science And Novel Technology Company, Inc. This family of devices is designed for high-performance telecommunications and datacom applications. The KMF suffix indicates the specific 64-pin CQFP package variant with tin-plated leads, distinguishing it from other packaging options within the product line.

Signal Switches, Multiplexers, Decoders Replacement Considerations

No direct public substitute part numbers are documented for the ASNT2112-KMF. Designers should evaluate functional equivalents based on the specific CDR bandwidth, output format, and package constraints. Verify that any alternative component meets the same electrical characteristics and interface requirements.