CY7B9945V RoboClock
®
Document Number: 38-07336 Rev. *N Page 16 of 18
Acronyms
Document Conventions
Units of Measure
Table 6. Acronyms Used in this Document
Acronym Description
FSM Finite State Machine
LVPECL Low-Voltage Positive Emitter Coupled Logic
LVTTL Low-Voltage Transistor-Transistor Logic
OE Output Enable
RMS Root Mean Square
PLL Phase Locked Loop
TQFP Thin Quad Flat Pack
VCO Voltage Controlled Oscillator
Table 7. Units of Measure
Symbol Unit of Measure Symbol Unit of Measure
°C degrees Celsius µVrms microvolts root-mean-square
dB decibel µW microwatt
dBc/Hz decibels relative to the carrier per Hertz mA milliampere
fC femtoCoulomb mm millimeter
fF femtofarad ms millisecond
Hz hertz mV millivolt
KB 1024 bytes nA nanoampere
Kbit 1024 bits ns nanosecond
kHz kilohertz nV nanovolt
k kilohm ohm
MHz megahertz pA picoampere
M megaohm pF picofarad
µA microampere pp peak-to-peak
µF microfarad ppm parts per million
µH microhenry ps picosecond
µs microsecond sps samples per second
µV microvolt sigma: one standard deviation
CY7B9945V RoboClock
®
Document Number: 38-07336 Rev. *N Page 17 of 18
Document History Page
Document Title: CY7B9945V RoboClock
®
, High-Speed Multi-Phase PLL Clock Buffer
Document Number: 38-07336
Revision ECN
Orig. of
Change
Submission
Date
Description of Change
** 111747 CTK 03/04/02 New data sheet
*A 116572 HWT 09/05/02 Added TTB Features
*B 119078 HWT 10/16/02 Corrected the following items in the Electrical Characteristics table:
I
IIL
, I
IIH
, I
IIM
specifications from: three level input pins excluding
FBFO to FS[0:2],
IF[0:3], FBDS[0:1] and FBFO to 2F[0:1], [1:2]DS[0:1], FBFO
Common Mode Range (V
COM
) from V
CC
to V
CC
–0.2
Corrected typo TQFP to LQFP in Features
*C 124645 RGL 03/20/03 Corrected typo LQFP to TQFP in Features
*D 128464 RGL 07/25/03 Added clock input frequency (f
in
) specifications in the switching characteristics
table.
*E 272075 RGL See ECN Minor Change: Fixed the Typical Outputs (Fig. 1) diagram
*F 1187144 KVM See ECN Updated Ordering Information table, primarily to add Pb-free devices
*G 2761988 CXQ 09/10/09 Changed instances of “50W” to “50” on page 1.
Changed “Pb” to “lead” in Ordering Information package type section.
Added “Not recommended for new designs” note to all Pb packages.
*H 2891379 KVM 03/12/2010 Added Table of Contents
Updated Ordering Information table
Updated Package Diagram
Updated Sales, Solutions, and Legal Information
*I 2905846 KVM 04/06/2010 Removed inactive part from Ordering Information table.
*J 3196237 BASH 03/15/11 Added Ordering Code Definitions.
Added Acronyms and Units of Measure.
Updated to new template.
*K 4323331 CINM 03/27/2014 Updated Package Diagram:
spec 51-85131 – Changed revision from *A to *C.
Updated to new template.
Completing Sunset Review.
*L 4570146 CINM 11/14/2014 Updated Functional Description:
Added “For a complete list of related documentation, click here.” at the end.
*M 5257087 PSR 05/03/2016 Changed status from Preliminary to Final.
Added Thermal Resistance.
Updated to new template.
*N 5687997 XHT 04/07/2017 Updated template. No content update.
Completing sunset review.
Document Number: 38-07336 Rev. *N Revised April 7, 2017 Page 18 of 18
RoboClock is a registered trademark, and Total Timing Budget and TTB are trademarks of Cypress Semiconductor Corporation.
CY7B9945V RoboClock
®
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CY7B9945V-2AXCT

Mfr. #:
Manufacturer:
Cypress Semiconductor
Description:
Phase Locked Loops - PLL 3.3V 200MHz 10 COM Programable
Lifecycle:
New from this manufacturer.
Delivery:
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