LTC6951IUHF#PBF

LTC6951IUHF#PBF is a high-performance clock distribution buffer from Linear Technology (now Analog Devices). It takes a reference clock and fans it out to multiple low-jitter outputs, with selectable output formats (LVPECL, LVDS, or CMOS) and adjustable drive. The device is designed for precise, low-skew clocking in FPGA, SERDES, DSP, and RF front-end systems, and it offers ultra-low additive jitter over a wide operating range. The suffix IUHF denotes industrial-temperature operation, and #PBF indicates Pb-free, RoHS-compliant packaging.

Here are the typical features of the LTC6951IUHF#PBF (LTC6951 family) in concise form:
- High-performance clock generator and jitter cleaner
- Programmable frequency translation (divide/multiply) from a reference
- Multiple differential outputs with selectable formats: LVPECL, LVDS, or CMOS
- Optional drive-strength/configurable output levels
- Individual enable/disable (tri-state) control per output
- Internal PLL/clock-synthesis architecture for clean, low-jitter outputs
- Single-supply operation with compatible I/O voltages; wide reference input range
- Low power operation with power-down modes
- Industrial temperature range (typical -40°C to 125°C)
- Small package, RoHS-compliant (PBF), suitable for surface-mount designs
Note: Exact electrical specs (jitter figures, frequency range, input/output levels, and voltage rails) are provided in the datasheet.

- Manufacturer: Analog Devices, Inc. (ADI). The LTC prefix comes from Linear Technology, which ADI acquired in 2017.
- What kind of company: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits (Instrumentation, communications, automotive, industrial, etc.).

LTC6951IUHF#PBF is used for clock distribution and jitter management in high-speed digital and telecom systems. Typical applications include:
- High-precision clock distribution with jitter attenuation for FPGAs, DSPs, and ASICs
- Reference clock distribution to SERDES and PCIe/SDH/SONET interfaces
- Telecommunication and networking equipment and backplanes
- Instrumentation, test equipment, and automated measurement systems
- Video, imaging, and broadcast systems requiring synchronized clocks
- RF/microwave front-ends and wireless timing networks
Note: It provides multiple low-jitter outputs from a single reference clock, suitable for tight timing budgets.

The LTC6951IUHF#PBF is supplied in an 8‑lead MSOP (MS8) package (RoHS/lead‑free PBF).