Overview
The MC100EP195FAR2G, produced by onsemi, is a 3.3 V ECL Programmable Delay Chip (PDC) designed primarily for clock deskewing and timing adjustment in high-speed systems. This chip provides variable delay of differential NECL/PECL input transitions, making it ideal for applications requiring precise timing control.
The device features a programmable matrix of gates and multiplexers, allowing for a digitally selectable resolution of about 10 ps and a net range of up to 10.2 ns. The delay values are controlled by 10 data select inputs (D[9:0]) and can be locked or loaded in real-time using the LEN pin.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 3.0 V to 3.6 V | V |
| Minimum Delay | 2.2 ns | ns |
| Maximum Delay | 12.2 ns | ns |
| Delay Resolution | ~10 ps | ps |
| Input Signal Types | ECL, LVCMOS, LVTTL | |
| Operating Temperature Range | −40°C to +85°C | °C |
| Storage Temperature Range | −65°C to +150°C | °C |
| Package Type | LQFP-32 (7x7) |
Key Features
- Programmable delay with a resolution of about 10 ps and a range of up to 10.2 ns.
- Supports ECL, LVCMOS, and LVTTL input signal types.
- Controlled by 10 data select inputs (D[9:0]) and LEN pin for real-time loading or locking of delay values.
- Cascade capability for extending the programmable delay range using multiple PDCs.
- VBB output reference voltage for signal level adjustment.
- Pb-free and RoHS compliant.
Applications
The MC100EP195FAR2G is particularly useful in high-speed systems requiring precise timing control, such as:
- Multi-channel deskewing: Adjusting timing skews in multiple signal channels due to differences in impedance and cable length.
- Clock distribution networks: Ensuring synchronized clock signals across various parts of a system.
- High-speed data transmission: Fine-tuning timing to optimize data transfer rates and reliability.
Q & A
- What is the primary function of the MC100EP195FAR2G?
The MC100EP195FAR2G is designed primarily for clock deskewing and timing adjustment in high-speed systems.
- What is the delay resolution of the MC100EP195FAR2G?
The delay resolution is about 10 ps.
- What are the supported input signal types for the MC100EP195FAR2G?
The device supports ECL, LVCMOS, and LVTTL input signal types.
- How is the delay value controlled in the MC100EP195FAR2G?
The delay value is controlled by 10 data select inputs (D[9:0]) and the LEN pin, which can load or lock the delay values in real-time.
- Can the MC100EP195FAR2G be cascaded with other PDCs?
- What is the operating temperature range of the MC100EP195FAR2G?
The operating temperature range is −40°C to +85°C.
- What is the package type of the MC100EP195FAR2G?
The package type is LQFP-32 (7x7).
- Is the MC100EP195FAR2G Pb-free and RoHS compliant?
- What are some common applications of the MC100EP195FAR2G?
- How does the MC100EP195FAR2G handle different input signal levels?
The device can handle different input signal levels by adjusting the VCF and VEF pins according to the input signal type (ECL, LVCMOS, or LVTTL).
