Overview
The LMK1C1106PWR from Texas Instruments is a high-performance, low-skew LVCMOS clock buffer designed for a variety of applications requiring precise clock signal distribution. This device is part of the LMK1C110x family, which offers modular, general-purpose clock buffering solutions. The LMK1C1106PWR specifically provides a 1:6 fan-out configuration, making it suitable for systems that need multiple clock outputs from a single input.
The device operates over a wide range of supply voltages (1.8 V, 2.5 V, and 3.3 V) and supports an operating temperature range from –40°C to 125°C. It features synchronous output enable control, fail-safe inputs, and low additive jitter, ensuring reliable and high-quality clock signal propagation.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 1.8, 2.5, 3.3 | V | |||
| Core Supply Current (IDD) | All outputs disabled, fIN = 0 V | 25 | 45 | µA | |
| Core Supply Current (IDD) | All outputs disabled, fIN = 100 MHz, VDD = 1.8 V | 2 | 6 | mA | |
| Core Supply Current (IDD) | All outputs disabled, fIN = 100 MHz, VDD = 2.5 V | 6.5 | 10 | mA | |
| Core Supply Current (IDD) | All outputs disabled, fIN = 100 MHz, VDD = 3.3 V | 15 | 21 | mA | |
| Output Low Voltage (VOL) | IOL = 1 mA | 0.2 x VDD | V | ||
| Output Rise and Fall Time (tRISE-FALL) | 20/80%, CL = 5 pF, fIN = 156.25 MHz | 0.33 | 0.8 | ns | |
| Output-Output Skew (tOUTPUT-SKEW) | 55 | ps | |||
| Propagation Delay (tPROP-DELAY) | 1.5 | 2.5 | ns | ||
| Additive Jitter (tJITTER-ADD) | fIN = 156.25 MHz, Integration range = 12 kHz - 20 MHz | 28 | 60 | fs, RMS |
Key Features
- High-Performance Clock Buffering: The LMK1C1106PWR offers high-performance clock buffering with very low output skew (< 55 ps) and extremely low additive jitter (< 25 fs nominal).
- Modular Design: Available in various fan-out configurations (1:2, 1:3, 1:4, 1:6, and 1:8), the device is part of a modular family that allows for easy handling and compatibility with other devices in the series.
- Synchronous Output Enable: The device features a synchronous output enable control (1G) that allows the outputs to be switched into a low state when 1G is low.
- Fail-Safe Inputs: The device supports fail-safe input operation, preventing oscillation at the outputs in the absence of an input signal and allowing inputs before VDD is supplied.
- Wide Operating Range: Operates over a range of supply voltages (1.8 V, 2.5 V, and 3.3 V) and supports an operating temperature range from –40°C to 125°C.
Applications
- Factory Automation & Control: Suitable for industrial automation systems requiring precise clock signal distribution.
- Telecommunications Equipment: Used in telecommunications equipment for reliable clock signal buffering).
- Data Center & Enterprise Computing: Ideal for data center and enterprise computing applications where low jitter and low skew are critical).
- Grid Infrastructure: Applied in grid infrastructure for reliable and high-performance clock signal distribution).
- Motor Drives: Used in motor drive systems requiring precise timing and low jitter).
- Medical Imaging: Suitable for medical imaging equipment where high signal integrity is essential).
Q & A
- What is the fan-out configuration of the LMK1C1106PWR?
The LMK1C1106PWR provides a 1:6 fan-out configuration.
- What are the supported supply voltages for the LMK1C1106PWR?
The device operates at 1.8 V, 2.5 V, and 3.3 V supply voltages.
- What is the typical additive jitter of the LMK1C1106PWR?
The typical additive jitter is less than 25 fs.
- What is the output-output skew of the LMK1C1106PWR?
The output-output skew is less than 55 ps.
- Does the LMK1C1106PWR support synchronous output enable control?
Yes, it supports synchronous output enable control through the 1G pin.
- What is the operating temperature range of the LMK1C1106PWR?
The device operates from –40°C to 125°C.
- Can the inputs be driven before VDD is applied?
Yes, the device supports fail-safe input operation, allowing inputs before VDD is supplied.
- What is the maximum clock frequency supported by the LMK1C1106PWR at 3.3 V supply?
The maximum clock frequency supported is 250 MHz at 3.3 V supply.
- What is the typical propagation delay of the LMK1C1106PWR?
The typical propagation delay is between 1.5 ns and 2.5 ns.
- What are some common applications of the LMK1C1106PWR?
Common applications include factory automation, telecommunications equipment, data center and enterprise computing, grid infrastructure, motor drives, and medical imaging.
