AK8181A

Clock Buffers, Drivers Overview

The AK8181A is a clock fanout buffer and multiplexer manufactured by Asahi Kasei Microdevices/AKM. It features a 2:4 input-to-output ratio, converting single-ended LVCMOS or LVTTL inputs into differential LVPECL outputs. The device operates at a maximum frequency of 266 MHz with a supply voltage range of 3.135V to 3.465V. Packaged in a 20-TSSOP case (0.173" width), it supports surface mount installation and functions within an operating temperature range of -40°C to 85°C.

Clock Buffers, Drivers Feature Summary

• Converts LVCMOS/LVTTL inputs to differential LVPECL outputs
• Supports 2:4 fanout buffering and multiplexing
• Maximum operating frequency of 266 MHz
• Available in 20-TSSOP surface-mount package

Clock Buffers, Drivers Applications

• Clock distribution networks requiring signal level translation
• High-speed digital systems utilizing LVPECL loads
• Multiplexing multiple clock sources for system timing

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and reel specifications. Confirm component status as discontinued if sourcing from secondary markets. Ensure compatibility with 3.3V logic levels and LVPECL load requirements before procurement.

Clock Buffers, Drivers Selection Notes

Select this component when LVCMOS or LVTTL signals must be distributed to multiple LVPECL destinations. Verify that the required frequency does not exceed 266 MHz. Ensure the design accommodates the 20-TSSOP footprint and the specified 3.135V–3.465V power supply constraints.

Clock Buffers, Drivers Part Context

The AK8181A belongs to the AK8181 series of clock buffers. Related variants include the AK8181B, which accepts crystal inputs, and the AK8181F, which supports higher frequencies up to 650 MHz with different input/output standards. All share similar packaging and voltage specifications.

Clock Buffers, Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate the AK8181B or AK8181F only if their specific input/output configurations align with the design requirements.