Product Summary

6946 is a high performance, low noise, 5.7GHz
phase-locked loop (PLL) with a fully integrated VCO,
including a reference divider, phase-frequency detector
(PFD) with phase-lock indicator, ultralow noise charge
pump, integer feedback divider, and VCO output divider.
The charge pump contains selectable high and low voltage
clamps useful for VCO monitoring.
The integrated low noise VCO uses no external components.
It is internally calibrated to the correct output frequency
with no external system support.
The part features a buffered, programmable VCO output
divider with a range of 1 through 6, providing a wide
frequency range.

Features

 Low Noise Integer-N PLL with Integrated VCO
n –226dBc/Hz Normalized In-Band Phase Noise Floor
n –274dBc/Hz Normalized In-Band 1/f Noise
n –157dBc/Hz Wideband Output Phase Noise Floor
n Excellent Spurious Performance
n Output Divider (1 to 6, 50% Duty Cycle)
n Output Buffer Muting
n Low Noise Reference Buffer
n Charge Pump Current Adjustable from 250μA to
11.2mA
n Configurable Status Output
n SPI Compatible Serial Port Control
n PLLWizard? Software Design Tool Support

 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LTC6946IUFD-1#PBF
LTC6946IUFD-1#PBF

IC INTEGER-N PLL W/VCO 28-QFN
Data Sheet
0-1: $7.37
1-25: $4.93
25-100: $4.19
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LTC6078
LTC6078
Other

Data Sheet
Negotiable 
LTC6078ACMS8
LTC6078ACMS8

IC OP AMP DUAL R-R I/O 8MSOP
Data Sheet
0-2800: $1.58
LTC6078ACMS8#PBF
LTC6078ACMS8#PBF

IC OP AMP DUAL R-R I/O 8MSOP
Data Sheet
0-1: $2.71
1-25: $1.93
25-100: $1.58
LTC6078ACMS8#TR
LTC6078ACMS8#TR

IC OP AMP DUAL R-R I/O 8MSOP
Data Sheet
0-5000: $1.61
LTC6078ACMS8#TRPBF
LTC6078ACMS8#TRPBF

IC OP AMP DUAL R-R I/O 8MSOP
Data Sheet
Negotiable 
LTC6078AHMS8
LTC6078AHMS8

IC OP AMP DUAL R-R I/O 8MSOP
Data Sheet
0-2450: $1.82