LTC6947IUFD#PBF

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LTC6947IUFD#PBF

IC SYNTHESIZER FRACT-N PLL 28QFN

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Specifications

Supplier Analog Devices Inc.
Package Tube
ProductStatus Active
PLL Yes
Input Clock
Output Clock
NumberofCircuits 1
Ratio-Input:Output 1:1
Differential-Input:Output Yes/Yes
Frequency-Max 6GHz
Divider/Multiplier Yes/No
Voltage-Supply 3.15V ~ 5.25V
OperatingTemperature -40°C ~ 105°C
MountingType Surface Mount
Package/Case 28-WFQFN Exposed Pad

Overview

Description

The LTC6947IUFD#PBF is a Linear Technology (now Analog Devices) wideband fractional-N PLL frequency synthesizer. It generates programmable RF/clock frequencies by locking to a reference clock via a programmable divider network, with control over the modulus and delta-sigma fractional-N output. It is typically used with an external VCO/LO stage and is programmed via an SPI-compatible interface, offering low phase noise and fast lock times for RF transceivers, test equipment, and clock generation tasks.
Suffix explanation:
- IUFD is the package code (identifies the specific package type/lead style and temperature rating).
- #PBF indicates Pb-free, RoHS-compliant packaging.
For exact pinout, electrical specs, division ranges, and application notes, consult the LTC6947 datasheet and the package information document.

Features

Here are the typical features of the LTC6947IUFD#PBF (as per the device family; exact numbers may vary by revision):
- Wideband RF PLL synthesizer with an integrated VCO for LO-generation
- Fractional-N and integer-N operation for fine frequency resolution
- Flexible reference input with programmable divider ratios
- SPI-compatible serial control interface for programming
- Low phase noise with fast lock/settle performance
- Multiple output options and drive configurations (single-ended, and/or differential where supported)
- Low power consumption with a wide operating supply range
- Good temperature stability and jitter performance
- Pb-free package (PBF); package type indicated by IUFD suffix
Note: For exact electrical specs (frequency ranges, noise figures, and package details), please consult the latest LTC6947 datasheet.

Package

An 8‑lead DFN (flat no‑lead) package, Pb-free (PBF).

Pinout

- Pin count: 16 pins (16-pin package).
- Function: LTC6947IUFD#PBF is a wideband fractional-N phase-locked loop (PLL) frequency synthesizer with an integrated VCO, intended for RF/microwave applications. It provides reference input, feedback/output, and a serial (SPI-like) control interface to set the output frequency. The #PBF suffix indicates Pb-free packaging.

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI).
What kind of company: A multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits; it acquired Linear Technology (LTC) in 2017.

Application

Applications: broadband RF/microwave LO generation and frequency synthesis for RF systems.
- Wireless infrastructure (cellular/backhaul)
- Satellite and RF transceivers
- Radar and sensing systems
- RF test equipment (signal generators)
- Cable TV/broadcast links and upconverters
- Data communications and point-to-point links
- Military/aerospace LO/clock generation

Shipping

Shipping MethodsWe

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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