Overview
The NB3N551DR2G is a 3.3 V / 5.0 V ultra-low skew 1:4 clock fanout buffer produced by onsemi. This device is specifically designed for clock distribution applications, ensuring minimal skew between outputs and from device to device. It features low output-to-output skew, making it ideal for high-frequency clock distribution in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input/Output Clock Frequency | Up to 180 | MHz |
| Output-to-Output Skew | 50 ps (typical) | ps |
| RMS Phase Jitter (12 kHz – 20 MHz) | 43 fs (typical at 25 MHz) | fs |
| Operating Voltage Range | 3.0 V to 5.5 V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | SOIC-8 (Pb-Free) | |
| Input/Output Type | (LV)CMOS/(LV)TTL | |
| Power Supply Current @ 135 MHz, No Load (VDD = 3.3 V) | 20 - 40 | mA |
| Output Rise and Fall Times | 0.5 - 1.0 | ns |
| Propagation Delay, CLK to Qn | 1.5 - 6.0 | ns |
Key Features
- Low skew outputs to ensure synchronized clock signals across multiple outputs.
- Input/Output clock frequency up to 180 MHz.
- RMS phase jitter as low as 43 fs (typical at 25 MHz).
- Output enable (OE) pin allows outputs to be three-stated when low.
- Operating voltage range from 3.0 V to 5.5 V.
- Industrial temperature range: -40°C to +85°C.
- Pb-Free packaging.
- ESD protection: Human Body Model > 4 kV, Machine Model > 200 V.
Applications
The NB3N551DR2G is ideal for various clock distribution applications in networking, telecommunications, and high-speed digital systems. It is particularly useful in scenarios where low skew and high-frequency clock signals are required, such as in data centers, network switches, and other high-performance electronic devices.
Q & A
- What is the primary function of the NB3N551DR2G? The NB3N551DR2G is a 1:4 clock fanout buffer designed for low skew clock distribution.
- What is the maximum input/output clock frequency of the NB3N551DR2G? The maximum input/output clock frequency is up to 180 MHz.
- What is the typical output-to-output skew of the NB3N551DR2G? The typical output-to-output skew is 50 ps.
- What is the RMS phase jitter of the NB3N551DR2G at 25 MHz? The RMS phase jitter at 25 MHz is 43 fs (typical).
- What is the operating voltage range of the NB3N551DR2G? The operating voltage range is from 3.0 V to 5.5 V.
- What is the operating temperature range of the NB3N551DR2G? The operating temperature range is from -40°C to +85°C.
- What type of package does the NB3N551DR2G come in? The NB3N551DR2G comes in an SOIC-8 (Pb-Free) package.
- How does the output enable (OE) pin function? The output enable (OE) pin three-states the outputs when low.
- What is the power supply current at 135 MHz with no load for VDD = 3.3 V? The power supply current is 20 - 40 mA.
- Is the NB3N551DR2G Pb-Free? Yes, the NB3N551DR2G is Pb-Free.
