Overview
The NB3N551MNR4G is a low skew 1-to-4 clock fanout buffer designed by ON Semiconductor. This component is specifically engineered for clock distribution applications, ensuring minimal skew between outputs and from device to device. It operates within a voltage range of 3.0 V to 5.5 V and is packaged in an 8-pin DFN (Dual Flat No-Lead) package, which is Pb-free. The device is suitable for industrial temperature ranges and features an output enable (OE) pin that three-states the outputs when set low.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input/Output Clock Frequency | - | - | - | 180 | MHz |
| Output-to-Output Skew | - | - | 50 | 160 | ps |
| RMS Phase Jitter (12 kHz – 20 MHz) | fcarrier = 25 MHz | - | 43 | - | fs |
| RMS Phase Jitter (12 kHz – 20 MHz) | fcarrier = 50 MHz | - | 16 | - | fs |
| Propagation Delay, CLK to Qn | 0 – 180 MHz | 1.5 | 3.0 | 6.0 | ns |
| Operating Temperature Range | - | -40 | - | 85 | °C |
| Supply Voltage (VDD) | - | 3.0 | - | 5.5 | V |
| Power Supply Current @ 135 MHz, No Load (VDD = 3.3 V) | - | - | 20 | 40 | mA |
| Power Supply Current @ 135 MHz, No Load (VDD = 5.0 V) | - | - | 50 | 95 | mA |
Key Features
- Low skew 1-to-4 clock fanout buffer
- Input/Output Clock Frequency up to 180 MHz
- Low output-to-output skew (50 ps typical)
- RMS Phase Jitter (12 kHz – 20 MHz): 43 fs (Typical at 25 MHz), 16 fs (Typical at 50 MHz)
- Output enable (OE) pin for three-state mode
- Operating range: VDD = 3.0 V to 5.5 V
- Ideal for networking clocks
- Packaged in 8-pin DFN (Dual Flat No-Lead) Pb-free package
- Industrial temperature range: -40°C to +85°C
- ESD protection: Human Body Model > 4 kV, Machine Model > 200 V
Applications
- Clock distribution in networking equipment
- High-speed data communication systems
- Telecommunication systems
- Industrial control systems requiring precise clock signals
- Embedded systems and microcontrollers needing low skew clock buffers
Q & A
- What is the primary function of the NB3N551MNR4G?
The primary function is to act as a low skew 1-to-4 clock fanout buffer, designed for clock distribution applications.
- What is the maximum input/output clock frequency of the NB3N551MNR4G?
The maximum input/output clock frequency is up to 180 MHz.
- What is the typical output-to-output skew of the NB3N551MNR4G?
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 set low.
- What is the operating voltage range of the NB3N551MNR4G?
The operating voltage range is from 3.0 V to 5.5 V.
- What is the typical RMS phase jitter at 25 MHz and 50 MHz?
The typical RMS phase jitter is 43 fs at 25 MHz and 16 fs at 50 MHz.
- What is the package type and is it Pb-free?
The package type is 8-pin DFN (Dual Flat No-Lead) and it is Pb-free.
- What is the industrial temperature range of the NB3N551MNR4G?
The industrial temperature range is from -40°C to +85°C.
- What kind of ESD protection does the NB3N551MNR4G offer?
The device offers ESD protection with Human Body Model > 4 kV and Machine Model > 200 V.
- In what types of applications is the NB3N551MNR4G typically used?
It is typically used in clock distribution in networking equipment, high-speed data communication systems, telecommunication systems, and industrial control systems.
