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LTC6951IUHF#PBF

Name: LTC6951IUHF#PBF
Rating: 4.7 (12 reviews)

IC CLOCK SYNTHESIZER PLL 40QFN

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Mfr。パート #LTC6951IUHF#PBF
パッケージ 40-WFQFN Exposed Pad
データシート LTC6951IUHF#PBF DataSheet
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仕様

Supplier	Analog Devices Inc.
Package	Tube
ProductStatus	Active
PLL	Yes
Input	Clock
Output	CML, LVDS
NumberofCircuits	1
Ratio-Input:Output	1:5
Differential-Input:Output	Yes/Yes
Frequency-Max	2.5GHz
Divider/Multiplier	Yes/No
Voltage-Supply	3.15V ~ 3.45V
OperatingTemperature	-40°C ~ 105°C
MountingType	Surface Mount
Package/Case	40-WFQFN Exposed Pad

概要

Description

LTC6951IUHF#PBF is Analog Devices’ (formerly Linear Technology) high-performance, PLL-based clock generator and distributor. It takes a reference clock and produces one or more low-jitter output clocks, suitable for feeding CPUs, FPGAs, SerDes, and other high-speed digital systems. Key points:
- Low jitter, fast lock, and clock multiplication/division capability
- Multiple outputs and configurable output formats (LVDS/LVPECL/HCSL, etc.)
- Simple control for frequency ratios and operation
- Power-efficient, suitable for industrial temperature ranges
The suffixes:
- IUHF denotes the specific package/temperature variant
- #PBF indicates Pb-free, RoHS-compliant manufacturing
For exact electrical specs, package details, and usage, refer to the LTC6951 datasheet and the product page.

Features

Here are the key features of LTC6951IUHF#PBF (high-performance clock generator/PLL):
- Low-jitter, high-precision clock synthesizer with PLL
- Programmable frequency (integer and fractional-N options) from a reference
- Multiple outputs with selectable formats (LVDS/LVPECL/CMOS) and adjustable drive
- Fast lock time with good output-to-output alignment
- Serial control interface for programming and status readback
- Low power operation over a wide temperature range
- RoHS-compliant, lead-free package (PBF) in a compact IUHF package
- Suitable for clock distribution and timing recovery in high-speed systems
For exact electrical specs, supply range, and package details, please consult the datasheet.

Package

LTC6951IUHF#PBF is in an 8-pin MSOP (MSOP-8) package, Pb-free/RoHS-compliant.

Pinout

- Pin count: 16 pins (16‑pin package variants like TSSOP/LQFP; Pb-free PBF suffix).
- Function: High‑precision PLL clock generator/jitter cleaner that takes a reference clock and produces a low‑jitter output clock (clock synthesis/distribution).

Manufacturer

Manufacturer: Analog Devices, Inc. (the LTC prefix comes from Linear Technology, which was acquired by Analog Devices in 2017; LTC-branded parts are still sold under ADI).
What kind of company: A multinational semiconductor company specializing in analog and mixed-signal integrated circuits (and related processing ICs).

Application

Applications areas of LTC6951IUHF#PBF:
- High-speed digital systems needing low-jitter clocks
- Clock distribution for FPGAs/ASICs and SerDes (PCIe, SATA, USB, Ethernet)
- Reference clock generation and jitter cleaning in telecom/network equipment
- Data-center, server, and storage timing networks
- Instrumentation, test equipment, and military/aerospace timing references
- Any design requiring multiple synchronized differential clock outputs with tight skew/jitter specs

Equivalent

Direct equivalents don’t exist; LTC6951IUHF#PBF is a specific clock-distribution buffer. To cross-reference, search by function (clock distribution buffer) on Digi-Key/Mouser. Closest families: Analog Devices’ own LTC6950/6952/6956 series, TI’s CDCLVC-series, and Renesas clock buffers. Use datasheets and cross-reference tools to match pinout, voltage, jitter, outputs, and packaging before substituting.