LTC6957IMS-2#PBF

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LTC6957IMS-2#PBF

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IC CLK BUFFER DVR 1:2 12MSOP

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Specifications

Attribute Value
Supplier Analog Devices Inc.
Package Tube
ProductStatus Active
Type Fanout Buffer (Distribution)
NumberofCircuits 1
Ratio-Input:Output 1:2
Differential-Input:Output Yes/Yes
Input CML, CMOS, LVDS, LVPECL
Output LVDS
Frequency-Max 300 MHz
Voltage-Supply 3.15V ~ 3.45V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 12-TSSOP (0.118, 3.00mm Width)

Overview

Description

The LTC6957IMS-2#PBF is a package variant of Linear Technology’s (Analog Devices) LTC6957, a high-performance clock-generation device (PLL/jitter cleaner) that derives a clean system clock from a reference for use in high-speed data converters, FPGAs, and SERDES. The IMS-2 suffix identifies the physical package variant, while PBF indicates Pb-free (lead-free) packaging.
Key takeaways:
- Provides a stable, low-jitter clock from a reference.
- Suitable for clock generation and distribution in high-speed applications.
- IMS-2 specifies the package; PBF indicates RoHS-compliant, lead-free finish.
For exact features, pinout, electrical specs, jitter figures, input/output formats, and programming details, refer to the LTC6957 datasheet and the specific package documentation for the IMS-2 variant.

Features

Here are concise features of LTC6957IMS-2#PBF (Pb-Free, IMS-2 package):
- Dual, independently programmable clock outputs
- Internal PLLs with fractional-N synthesis for precise frequencies
- Output formats selectable: LVDS, LVPECL, or CMOS (50Ω drive options)
- Reference input with jitter-cleaning capability on outputs
- Enable and power-down controls for power management
- 3.3V nominal supply (broadly suitable from ~2.7V to 3.6V); low power
- Small 8-pin IMS-2 Pb-free package with exposed pad for thermal performance
- Industrial temperature range (-40°C to +85°C)
Note: Exact electrical specs (frequency range, jitter, and drive levels) are in the datasheet; this summarizes typical feature highlights.

Pinout

Pin count: 28 pins (LTC6957IMS-2#PBF in the IMS package).
Function: A dual-output, programmable clock generator/PLL with jitter-cleaning capability. It takes a reference clock and produces two low-jitter output clocks (two channels) with programmable dividers/multipliers and alignment features for high‑speed clock distribution (e.g., data converters, SERDES, RF front-ends). PBF denotes Pb-free/RoHS compliant.

Manufacturer

- Manufacturer: Analog Devices, Inc. (ADI). The LTC prefix indicates Linear Technology, which ADI acquired in 2017, so LTC parts are now sold by ADI.
- What kind of company: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits.

Application

Possible application areas for LTC6957IMS-2#PBF:
- Clock generation and distribution for FPGAs, DSPs, and microprocessors
- Jitter-cleaned reference clocks for SERDES and high-speed interfaces (PCIe, SATA, USB, HDMI)
- Multi-output clock networks in telecom and data-communication equipment
- RF/mixed-signal instrumentation and measurement systems needing low-jitter references
- Medical imaging and industrial automation that require precise timing and synchronization
Note: It is a dual-output clock generator/distribution IC with low jitter suitable for systems demanding synchronized references.

Package

It uses an 8-pin MSOP package (MSOP-8), IMS-2 variant; Pb-free (RoHS) as indicated by the #PBF suffix.

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