Overview
The NB100LVEP221MNRG is a 2:1:20 differential clock driver designed by onsemi, optimized for high-performance clock distribution. This device accepts two differential ECL/PECL clock inputs and can also handle HSTL signal levels on one of the input pairs. It is particularly noted for its low skew and jitter characteristics, making it suitable for applications requiring precise clock timing. The device operates in both LVPECL and NECL modes and is compatible with 2.5V and 3.3V power supply systems. It features a thermally enhanced 52-lead QFN package and is Pb-free and RoHS compliant.
Key Specifications
| Parameter | Condition | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| VCC (PECL Mode Power Supply) | VEE = 0 V | V | - | - | 6 |
| VEE (NECL Mode Power Supply) | VCC = 0 V | V | -6 | - | - |
| Output-to-Output Skew | - | ps | - | 15 | - |
| Device-to-Device Skew | - | ps | - | 40 | - |
| Jitter (RMS) | - | ps | - | < 2 | - |
| Maximum Frequency | - | GHz | - | > 1.0 | - |
| Propagation Delay | - | ps | - | 540 | - |
| Operating Temperature Range | - | °C | -40 | - | 85 |
Key Features
- Low skew 2:1:20 differential clock driver
- Accepts two differential ECL/PECL clock inputs, with one input pair also supporting HSTL signal levels
- Low output-to-output skew (15 ps typical) and device-to-device skew (40 ps typical)
- Jitter less than 2 ps RMS
- Maximum frequency greater than 1.0 GHz
- Thermally enhanced 52-lead QFN package
- VBB output for single-ended LVPECL input conditions
- Pb-free and RoHS compliant
- Pin compatible with Motorola MC100EP221
Applications
The NB100LVEP221MNRG is suitable for various high-performance clock distribution applications, including:
- Telecommunication systems requiring precise clock timing
- Data communication equipment
- High-speed computing and networking devices
- Test and measurement instruments
- Other applications needing low skew and low jitter clock signals
Q & A
- What is the primary function of the NB100LVEP221MNRG?
The primary function is to act as a 2:1:20 differential clock driver, distributing clock signals with low skew and jitter.
- What types of clock inputs does the NB100LVEP221MNRG support?
The device supports differential ECL/PECL clock inputs and can also handle HSTL signal levels on one of the input pairs.
- What is the typical output-to-output skew of the NB100LVEP221MNRG?
The typical output-to-output skew is 15 ps.
- What is the maximum frequency the NB100LVEP221MNRG can handle?
The device can handle frequencies greater than 1.0 GHz.
- What is the purpose of the VBB output?
The VBB output is used as a reference voltage for single-ended LVPECL input conditions and can also rebias AC coupled inputs.
- Is the NB100LVEP221MNRG Pb-free and RoHS compliant?
- What is the operating temperature range of the NB100LVEP221MNRG?
The operating temperature range is from -40°C to +85°C.
- What type of package does the NB100LVEP221MNRG come in?
The device comes in a thermally enhanced 52-lead QFN package.
- Is the NB100LVEP221MNRG pin compatible with any other devices?
- What are the typical termination requirements for the outputs of the NB100LVEP221MNRG?
The outputs should be terminated identically into 50 Ω, even if only one output is being used. Unused output pairs can be left open without affecting skew.
