AK8181B

Clock Buffers, Drivers Overview

The AK8181B is a single-circuit clock buffer and multiplexer manufactured by Asahi Kasei Microdevices/AKM. It features a 2:4 input-to-output ratio, accepting LVCMOS, LVTTL, or crystal inputs to generate four LVPECL outputs. The device supports a maximum frequency of 266 MHz and operates on a supply voltage ranging from 3.135V to 3.465V. Designed for surface mount installation, it is housed in a 20-TSSOP package with a width of 4.40mm. The component functions within an operating temperature range of -40°C to 85°C.

Clock Buffers, Drivers Feature Summary

• 2:4 fanout buffer and multiplexer configuration
• LVPECL differential outputs with LVCMOS/LVTTL/crystal inputs
• Maximum operating frequency of 266 MHz
• Single circuit design in a 20-TSSOP package

Clock Buffers, Drivers Applications

• Clock distribution networks requiring signal buffering
• Multiplexing multiple clock sources into a single output path
• Converting single-ended logic levels to LVPECL for high-speed interfaces

Clock Buffers, Drivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Confirm that the 20-TSSOP package dimensions align with the target PCB footprint. Ensure the supply voltage requirements match the system design constraints before integration.

Clock Buffers, Drivers Selection Notes

Select this component when a 2:4 fanout ratio with LVPECL outputs is required. Verify that the input signal type (LVCMOS, LVTTL, or Crystal) matches the source. Ensure the system power supply falls within the 3.135V to 3.465V range and that the operating environment stays between -40°C and 85°C.

Clock Buffers, Drivers Part Context

The AK8181B belongs to the AK8181 series of clock buffers. Related variants include the AK8181A, which shares similar specifications, and the AK8181F, which offers a 3:4 ratio and higher 650 MHz frequency capability. These components share the same 20-TSSOP packaging format.

Clock Buffers, Drivers Replacement Considerations

The AK8181A is a direct variant within the same series. The AK8181F provides similar functionality but with a 3:4 ratio and 650 MHz speed. Verify pin compatibility and electrical parameters before substituting.