Overview
The MC100EP195FAG, produced by onsemi, is a Programmable Delay Chip (PDC) designed primarily for clock deskewing and timing adjustment. This device provides variable delay of a differential NECL/PECL input transition, making it highly versatile in high-speed timing applications. The delay section consists of a programmable matrix of gates and multiplexers, allowing for precise control over the delay range. The MC100EP195FAG is particularly useful in environments where precise timing adjustments are crucial, such as in high-speed data transmission and clock synchronization systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Delay Increment | ~10 ps | |
| Delay Range | 2.2 ns to 12.2 ns | |
| Maximum Input Clock Frequency | >1.2 GHz | |
| Operating Voltage (PECL Mode) | 3.0 V to 3.6 V (VCC), 0 V (VEE) | |
| Operating Voltage (NECL Mode) | 0 V (VCC), -3.0 V to -3.6 V (VEE) | |
| Input Signal Compatibility | ECL, LVCMOS, LVTTL | |
| Operating Temperature Range | -40°C to +85°C | |
| Storage Temperature Range | -65°C to +150°C | |
| Package Type | LQFP-32 (Pb-Free) |
Key Features
- Programmable Delay: The device offers a programmable delay range of up to 10.2 ns with a resolution of about 10 ps, controlled by 10 data select inputs D[0:9].
- Multiple Input Modes: Compatible with ECL, LVCMOS, and LVTTL input signals, allowing flexibility in system design.
- Cascade Capability: Allows cascading of multiple PDCs to increase the programmable range, controlled by the D10 pin and LEN signal.
- Internal VBB Reference: Provides an internally generated voltage supply (VBB) for rebiasing AC coupled inputs and single-ended input conditions.
- Temperature Compensation: Includes temperature compensation to ensure stable operation across a wide temperature range.
- ESD Protection: Features ESD protection to safeguard against electrostatic discharge.
Applications
The MC100EP195FAG is particularly suited for applications requiring precise timing adjustments, such as:
- High-Speed Data Transmission: Ensures accurate timing in high-speed data transmission systems to prevent data skew and errors.
- Clock Synchronization: Ideal for clock deskewing and timing adjustment in clock synchronization systems.
- Multi-Channel Deskewing: Useful in multiple channel delay matching to compensate for differences in impedance and cable length.
Q & A
- What is the primary function of the MC100EP195FAG?
The MC100EP195FAG is designed primarily for clock deskewing and timing adjustment, providing variable delay of a differential NECL/PECL input transition. - What is the delay increment and range of the MC100EP195FAG?
The delay increment is about 10 ps, and the delay range is from 2.2 ns to 12.2 ns. - What input signal modes are supported by the MC100EP195FAG?
The device supports ECL, LVCMOS, and LVTTL input signals. - How can multiple MC100EP195FAG devices be cascaded?
Multiple devices can be cascaded using the D10 pin and LEN signal to increase the programmable range. - What is the purpose of the VBB pin on the MC100EP195FAG?
The VBB pin provides an internally generated voltage supply for rebiasing AC coupled inputs and single-ended input conditions. - What are the operating and storage temperature ranges for the MC100EP195FAG?
The operating temperature range is -40°C to +85°C, and the storage temperature range is -65°C to +150°C. - What type of package is the MC100EP195FAG available in?
The device is available in a Pb-Free LQFP-32 package. - Does the MC100EP195FAG have ESD protection?
Yes, the device features ESD protection to safeguard against electrostatic discharge. - What is the maximum input clock frequency for the MC100EP195FAG?
The maximum input clock frequency is greater than 1.2 GHz. - How is the delay value selected and latched on the MC100EP195FAG?
The delay value is selected by the 10 data select inputs D[0:9] and latched by a high signal on the LEN (latch enable) control.
