Overview
The NB3N853531EDTR2G, produced by onsemi, is a 3.3 V supply 1:4 clock distribution fanout buffer. This device features a low skew design and is capable of operating with either a fundamental parallel mode crystal or an LVCMOS/LVTTL clock input. The CLK_SEL pin allows for the selection between these two input types. The device translates a single-ended clock input into four differential 3.3 V LVPECL outputs, making it suitable for various clock distribution applications. It also includes a synchronous clock enable control via the CLK_EN pin to eliminate runt pulses.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3.135 | 3.3 | 3.465 | V |
| Maximum Operating Frequency | 0 | - | 266 | MHz |
| Propagation Delay | 1.1 | - | 1.8 | ns |
| Output to Output Skew | - | - | 30 | ps |
| Device to Device Skew | - | - | 200 | ps |
| Additive Phase Jitter (RMS) | - | 0.053 | - | ps |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | TSSOP-20 | - |
Key Features
- Four differential 3.3 V LVPECL outputs
- Selectable crystal or LVCMOS/LVTTL clock inputs
- Up to 266 MHz clock operation
- Low output to output skew: 30 ps (Max)
- Low device to device skew: 200 ps (Max)
- Propagation delay: 1.8 ns (Max)
- Synchronous clock enable control using LVCMOS/LVTTL levels
- Industrial temperature range: -40°C to 85°C
- Pb-free TSSOP-20 package, RoHS compliant
Applications
The NB3N853531EDTR2G is suitable for various clock distribution applications in systems requiring low skew and high-frequency clock signals. These include:
- Telecommunication systems
- Data centers and server systems
- High-speed computing and networking equipment
- Industrial automation and control systems
- Medical and scientific instruments
Q & A
- What is the maximum operating frequency of the NB3N853531EDTR2G?
The maximum operating frequency is up to 266 MHz.
- What types of clock inputs can the NB3N853531EDTR2G accept?
The device can accept either a fundamental parallel mode crystal or an LVCMOS/LVTTL clock input.
- How many LVPECL outputs does the NB3N853531EDTR2G provide?
The device provides four differential 3.3 V LVPECL outputs.
- What is the output to output skew of the NB3N853531EDTR2G?
The output to output skew is 30 ps (Max).
- How is the clock enable controlled on the NB3N853531EDTR2G?
The clock enable is controlled synchronously using the CLK_EN pin with LVCMOS/LVTTL levels.
- What is the operating temperature range of the NB3N853531EDTR2G?
The operating temperature range is -40°C to 85°C.
- Is the NB3N853531EDTR2G RoHS compliant?
- What package type is the NB3N853531EDTR2G available in?
The device is available in a TSSOP-20 package.
- What is the typical additive phase jitter of the NB3N853531EDTR2G?
The typical additive phase jitter is 0.053 ps (RMS).
- How is the crystal input configured on the NB3N853531EDTR2G?
The crystal input can be configured using a parallel resonant crystal with appropriate loading capacitance as shown in the datasheet.
