LMK1D1204RGTR

Clock Buffers, Drivers Overview

The LMK1D1204RGTR is a low additive jitter LVDS buffer manufactured by Texas Instruments. It features a 2:4 input-to-output configuration, routing one of two selectable clock inputs to four differential LVDS outputs. The device supports multiple input standards including LVDS, LVPECL, LP-HCSL, HCSL, CML, and LVCMOS. It operates with supply voltages of 1.71 V to 3.465 V across three voltage domains. Key electrical parameters include a maximum output frequency of 2 GHz, maximum propagation delay of less than 575 ps, and maximum output offset of 20 ps. Additive jitter is specified at less than 60 fs RMS (max) between 12 kHz and 20 MHz at 156.25 MHz.

Clock Buffers, Drivers Feature Summary

• 2:4 Low Additive Jitter LVDS Buffer with configurable input selection
• Supports LVDS, LVPECL, LP-HCSL, HCSL, CML, and LVCMOS input formats
• Low phase noise base of -164 dBc/Hz (typical)
• Available in a 5 mm x 5 mm 16-pin VQFN package

Clock Buffers, Drivers Applications

• Telecommunications and networking equipment
• Medical imaging systems
• Test and measurement instruments
• Wireless infrastructure
• Professional audio, video, and signage displays

Clock Buffers, Drivers Procurement Notes

Verify the specific suffix 'RGTR' corresponds to the tape and reel packaging variant when sourcing. Confirm that the operating temperature range meets the industrial specification of -40°C to +105°C for the target application environment. Ensure power supply rails align with the 1.8 V, 2.5 V, or 3.3 V requirements supported by the device architecture.

Clock Buffers, Drivers Selection Notes

Select this component when a 2:4 fan-out ratio is required for LVDS clock distribution. Choose this part over the LMK1D1208 if only four output channels are necessary to reduce board space and power consumption. Verify that the input signal format matches one of the supported single-ended or differential standards without requiring external level shifting.

Clock Buffers, Drivers Part Context

The LMK1D1204RGTR belongs to the LMK1D120x family of low additive jitter LVDS buffers from Texas Instruments. This family includes the 4-channel LMK1D1204 and the 8-channel LMK1D1208 variants. These devices are designed for high-performance clock distribution in applications demanding minimal jitter degradation and flexible input compatibility.

Clock Buffers, Drivers Replacement Considerations

The LMK1D1204PRHDT is a pin-compatible alternative within the same family offering identical functional specifications. Other members of the LMK1D120x series may serve as substitutes depending on the required channel count.