Overview
The LTC6955IUKG-1#PBF is a high-performance, ultralow jitter, fanout clock buffer produced by Analog Devices Inc. This component is part of the LTC6955 family and is designed to provide multiple output configurations with exceptional clock distribution capabilities. It features eleven outputs, with the option to configure any number between three and eleven outputs, as well as a complete shutdown. The LTC6955-1 variant includes a divide-by-2 frequency divider, enabling the generation of JESD204B subclass 1 SYSREF signals when paired with other Analog Devices components like the LTC6952 or LTC6953.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Outputs | 11 |
| Clock Function | Distribution |
| Interface | SPI |
| On-Chip VCO or DCO | No |
| Operating Temperature Range, °C | -40 to 125 |
| Output Frequency (max), Hz | 7.5 GHz |
| Output Logic | CML |
| Power (typ), W | 1.3 |
| Package | 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP) |
| Voltage - Supply | 3.15V ~ 3.45V |
| Mounting Type | Surface Mount |
Key Features
- Ultralow jitter performance, making it suitable for high-frequency applications.
- Four-pin parallel control port for flexible output configuration and polarity inversion of alternating outputs.
- Supports output frequencies from DC to 7.5 GHz.
- LTC6955-1 variant includes a divide-by-2 frequency divider for generating JESD204B subclass 1 SYSREF signals.
- RoHS compliant and available in 52-lead QFN packages.
- Operating temperature range of -40°C to 125°C.
Applications
The LTC6955IUKG-1#PBF is ideal for various high-frequency clock distribution applications, including:
- Telecommunication systems requiring precise clock signals.
- Data acquisition and high-speed data conversion systems.
- Radar and military communication systems.
- High-performance computing and data centers.
- Medical imaging and diagnostic equipment.
Q & A
- What is the maximum output frequency of the LTC6955IUKG-1#PBF?
The maximum output frequency is 7.5 GHz, except for the divided output which operates at up to 3.75 GHz.
- How many outputs does the LTC6955IUKG-1#PBF have?
The component has eleven outputs.
- What is the operating temperature range of the LTC6955IUKG-1#PBF?
The operating temperature range is -40°C to 125°C.
- Is the LTC6955IUKG-1#PBF RoHS compliant?
Yes, the component is RoHS compliant.
- What type of package is the LTC6955IUKG-1#PBF available in?
The component is available in a 52-lead QFN package (7mm x 8mm x 0.75mm w/ EP).
- What is the purpose of the 4-pin parallel control port?
The 4-pin parallel control port allows for multiple output setups and the ability to invert the output polarity of alternating outputs.
- Can the LTC6955IUKG-1#PBF generate JESD204B subclass 1 SYSREF signals?
Yes, the LTC6955-1 variant includes a divide-by-2 frequency divider to generate these signals.
- What is the typical power consumption of the LTC6955IUKG-1#PBF?
The typical power consumption is 1.3 watts.
- What is the output logic type of the LTC6955IUKG-1#PBF?
The output logic type is CML (Current Mode Logic).
- Is the LTC6955IUKG-1#PBF suitable for high-frequency applications?
Yes, it is designed for high-frequency applications with ultralow jitter performance.
