Overview
The NB3N551DG is a low skew 1-to-4 clock fanout buffer designed by onsemi, specifically for clock distribution applications. This device is optimized to minimize skew within and between devices, ensuring precise clock signal distribution. It operates within a voltage range of 3.0 V to 5.5 V and is packaged in an 8-pin SOIC, making it suitable for various industrial and networking applications. The NB3N551DG is a Pb-free device and is currently scheduled for obsolescence.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Input/Output Clock Frequency | - | - | 180 | MHz |
| Output-to-Output Skew | - | 50 | 160 | ps |
| RMS Phase Jitter (12 kHz – 20 MHz) | - | 43 | - | fs |
| Propagation Delay (CLK to Qn) | 1.5 | 3.0 | 6.0 | ns |
| Output Rise and Fall Times | - | 0.5 | 1.0 | ns |
| Operating Temperature Range | -40 | - | 85 | °C |
| Supply Voltage (VDD) | 3.0 | - | 5.5 | V |
Key Features
- Low skew 1-to-4 clock fanout buffer designed for precise clock distribution.
- Input/Output Clock Frequency up to 180 MHz.
- Low output-to-output skew of 50 ps typical.
- RMS Phase Jitter of 43 fs typical (integrated 12 kHz – 20 MHz).
- Output enable (OE) pin allows outputs to be three-stated when low.
- Operating range: VDD = 3.0 V to 5.5 V.
- Ideal for networking clocks and industrial applications.
- Packaged in 8-pin SOIC (Pb-free).
- Industrial temperature range: -40°C to +85°C.
Applications
The NB3N551DG is suitable for various applications requiring precise clock signal distribution, including:
- Networking equipment.
- Industrial control systems.
- High-speed data communication systems.
- Embedded systems requiring low skew clock signals.
Q & A
- What is the primary function of the NB3N551DG?
The NB3N551DG is a low skew 1-to-4 clock fanout buffer designed for precise clock distribution.
- What is the maximum input/output clock frequency of the NB3N551DG?
The maximum input/output clock frequency is up to 180 MHz.
- What is the typical output-to-output skew of the NB3N551DG?
The typical output-to-output skew is 50 ps.
- How does the output enable (OE) pin function?
The output enable (OE) pin three-states the outputs when low.
- What is the operating voltage range of the NB3N551DG?
The operating voltage range is from 3.0 V to 5.5 V.
- What is the temperature range for the NB3N551DG?
The industrial temperature range is from -40°C to +85°C.
- Is the NB3N551DG Pb-free?
- What package types are available for the NB3N551DG?
The device is packaged in an 8-pin SOIC.
- What is the RMS phase jitter of the NB3N551DG?
The RMS phase jitter is 43 fs typical (integrated 12 kHz – 20 MHz).
- Is the NB3N551DG still in production?
No, the NB3N551DG is scheduled for obsolescence and will be discontinued by the manufacturer.
