Overview
The MC100LVEL34DR2G is a 3.3 V ECL (Emitter-Coupled Logic) clock generation chip designed for low skew clock generation applications. This device is part of the 100 Series from ON Semiconductor and is specifically engineered to provide precise clock division with minimal skew. It operates in both PECL (Positive ECL) and NECL (Negative ECL) modes, making it versatile for various high-speed clocking needs.
Key Specifications
| Parameter | Condition | Value | Unit |
|---|---|---|---|
| VCC (PECL Mode Power Supply) | VEE = 0 V | 3.0 to 3.8 | V |
| VEE (NECL Mode Power Supply) | VCC = 0 V | -3.0 to -3.8 | V |
| Frequency | Up to 1.5 GHz | GHz | |
| Output-to-Output Skew | 50 ps (Typical) | ps | |
| Operating Temperature Range | -40°C to +85°C | °C | |
| Package | 16-SOIC (0.154", 3.90mm Width) | ||
| Input Type | LVDS, NECL, PECL | ||
| Differential Input/Output | Yes/Yes |
Key Features
- Synchronous Enable/Disable to avoid runt clock pulses
- Master Reset for synchronization of internal dividers and multiple devices
- Low skew clock generation with 50 ps typical output-to-output skew
- Temperature compensation within the 100 Series
- LVDS input compatible
- Pb-Free, Halogen Free, and RoHS Compliant
- Internal VBB pin for rebiasing AC coupled inputs
Applications
The MC100LVEL34DR2G is suited for high-speed clock distribution in various applications, including:
- Telecommunication systems requiring precise clock synchronization
- High-speed data processing and computing systems
- Networking equipment where low skew clock signals are critical
- Test and measurement equipment needing stable clock sources
Q & A
- What is the primary function of the MC100LVEL34DR2G?
The MC100LVEL34DR2G is a clock generation chip designed for low skew clock division, providing ÷2, ÷4, and ÷8 clock outputs.
- What are the operating voltage ranges for PECL and NECL modes?
For PECL mode, VCC = 3.0 V to 3.8 V with VEE = 0 V. For NECL mode, VCC = 0 V with VEE = -3.0 V to -3.8 V.
- What is the maximum operating frequency of the MC100LVEL34DR2G?
The device operates up to a frequency of 1.5 GHz.
- What is the typical output-to-output skew of the MC100LVEL34DR2G?
The typical output-to-output skew is 50 ps.
- Does the MC100LVEL34DR2G support LVDS inputs?
- What is the purpose of the VBB pin on the MC100LVEL34DR2G?
The VBB pin provides a reference voltage output and can be used to rebias AC coupled inputs.
- How does the synchronous enable/disable feature work?
The synchronous enable/disable feature ensures that the internal dividers are only enabled or disabled when the internal clock is in the LOW state, preventing runt clock pulses.
- What is the role of the Master Reset (MR) input?
The Master Reset input allows for the synchronization of the internal dividers and multiple MC100LVEL34 devices in a system.
- Is the MC100LVEL34DR2G RoHS compliant?
- What are the package options available for the MC100LVEL34DR2G?
The device is available in 16-SOIC and TSSOP-16 packages.
