Manufacturer Part Number
LTC6946IUFD-4#PBF
Manufacturer
Analog Devices
Introduction
The LTC6946IUFD-4#PBF is a high performance, RF/IF integer N clock/frequency synthesizer.
Product Features and Performance
Clock/frequency synthesizer (RF/IF) with integer N PLL
Supports a maximum output frequency of 6.39GHz
Incorporates a fully integrated voltage controlled oscillator (VCO)
Features a low noise floor and wideband phase noise performance
Includes output dividers for flexible frequency generation
Capable of generating a consistent 1:1 input to output ratio
Product Advantages
Highly integrated, reducing the need for external components
Provides high-frequency precision and stability
Low phase noise enhances system sensitivity and performance
Supports both differential input and output for improved signal integrity
Wide operating temperature range suitable for various environments
Key Technical Parameters
Type: Integer N clock/frequency synthesizer
PLL: Yes
Input: Clock
Output: Clock
Number of Circuits: 1
Ratio - Input:Output: 1:1
Differential - Input:Output: Yes/Yes
Frequency - Max: 6.39GHz
Divider/Multiplier: Yes/Yes
Voltage - Supply: 3.15V ~ 5.25V
Operating Temperature: -40°C ~ 105°C
Mounting Type: Surface Mount
Package / Case: 28-WFQFN Exposed Pad
Supplier Device Package: 28-QFN (4x5)
Quality and Safety Features
Compliant with standard industry quality and safety regulations
Operates reliably in a wide temperature range (-40°C ~ 105°C)
Compatibility
Compatible with surface mount technology for PCBs
Application Areas
Used in network infrastructure (such as base stations, routers, switches)
Suitable for data acquisition systems that require precise clock management
High-speed signal processing and communication systems
Aerospace and defense electronics requiring high-frequency clock generation
Product Lifecycle
Obsolete product status indicates the model is discontinued
Replacements or upgrades might be limited or not available
Several Key Reasons to Choose This Product
High-frequency output up to 6.39GHz for demanding applications
Integrated VCO simplifies circuit design and saves space
High-quality signal integrity due to differential I/O
Versatile supply voltage range accommodates various power designs
Robust design operates effectively in harsh temperature environments
Suited for high-end telecommunications and sensitive electronic equipment