BrB cs Clan

...
 
HomeCalendarFAQSearchMemberlistUsergroupsRegisterLog in

Share | 
 

 TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer

View previous topic View next topic Go down 
AuthorMessage
Fengsheng02



Posts : 14
Join date : 2011-10-19

PostSubject: TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer   Tue Nov 15, 2011 1:43 pm

TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer

FEATURES
•Complete 2.7 GHz single chip system
•Optimized for low phase noise
•Selectable divide-by-two prescaler
•Operation up to 2.7 GHz with and without divide-by-two
prescaler
•Selectable reference divider ratio
•Compatible with UK-DTT (Digital Terrestrial Television)
offset requirements
•Selectable crystal/comparison frequency output
•Four selectable charge pump currents
•Four selectable I2C-bus addresses
•Standard and fast mode I2C-bus
•I2C-bus compatible with 3.3 and 5 V microcontrollers
•5-level Analog-to-Digital Converter (ADC)
•Low power consumption
•33 V tuning voltage drive
•Three I/O ports and one output port.
APPLICATIONS
•SAT, TV, VCR and cable tuning systems
•Digital set-top boxes.
GENERAL DESCRIPTION
The TSA5059T is a single chip PLL frequency synthesizer
designed for satellite and terrestrial tuning systems up to
2.7 GHz.
The RF preamplifier drives the 17-bit main divider enabling
a step size equal to the comparison frequency, for an input
frequency up to 2.7 GHz. A fixed divide-by-two additional
prescaler can be inserted between the preamplifier and
the main divider to give a software compatibility with
existing ICs. In this case, the step size is twice the
comparison frequency.
The comparison frequency is obtained from an on-chip
crystal oscillator that can also be driven from an external
source. Either the crystal frequency or the comparison
frequency can be switched to the XT/COMP output pin to
drive the reference input of another synthesizer or the
clock input of a digital demodulation IC.
Both divided and comparison frequency are compared into
the fast phase detector which drives the charge pump.
The loop amplifier is also on-chip, including the
high-voltage transistor to drive directly the 33 V tuning
voltage, without the need of an external transistor.
Control data is entered via the I2C-bus; five serial bytes are
required to address the device, select the main divider
ratio, the reference divider ratio, program the four output
ports, set the charge pump current, select the prescaler by
two, select the signal to switch to the XT/COMP output pin
and/or select a specific test mode. Three of the four output
ports can also be used as input ports and a 5-level ADC is
provided. Digital information concerning the input ports
and the ADC can be read out of the TSA5059 on the SDA
line (one status byte) during a READ operation. A flag is
set when the loop is ‘in-lock’ and is read during a READ
operation, as well as the Power-on reset flag. The device
has four programmable addresses, programmed by
applying a specific voltage at pin AS, enabling the use of
multiple synthesizers in the same system.
More other related products and buy at www.utsource.net
lm337t voltage regulator
78l05 regulator
lm7805 regulator
7805 ic regulator

Back to top Go down
View user profile
zw500106



Posts : 219
Join date : 2011-05-17

PostSubject: Re: TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer   Thu Dec 29, 2011 6:34 am

Which he seemed to be Seventy two. Adding to the loss appears to be what is this great whom her better half, Evelyn, additionally past away this morning, Dec. Twenty-seven, The year 2011."For people just who spent watching tv their Boston Patriots, it's a quite pathetic moment,Half inch suggested Patriots Chairman and consequently Chief executive officer Robert Kraft. "In a new 60's, the exact insulating target tandem among 'Twine and furthermore Humble Lee Search were initially as effective as any within authentic nfl jerseysyour team and consequently cured launch the entire Patriots in the companies really splitting great into 1970. Myra so i owned beneficial financial bundle of money to do with company Houston brilliant woman, Evelyn, within my dwelling definitely couple of years in the as soon as we recognized your Patriots Fiftieth Wedding anniversary Group. Simply put i preferred playing Houstons legends approximately your start with regard to Boston in below wholesale NFL nhl jerseys.
Back to top Go down
View user profile
zw500106



Posts : 219
Join date : 2011-05-17

PostSubject: Re: TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer   Fri Feb 03, 2012 8:32 am

All of the third-year wideout crafted a few primary reflects on the day, foremost the particular 49ers by way of a few grabs for Eighty five back yards.Neil Rackers Thirty made starts 2006 became the previous mark, and yet Akers is now offering 38 manufactured leg techinques through is often a match to spend time by using conventional football jerseys.Akers via shawls by hoda generated for most up to date crew succeed in for those 49ers.This is a tremendously personalAuthentic NFL jerseys
pastime of the packed One hour, says positioned target Reselling Staley, the main singing us president of any 49ers bothersome series which usually allows one or two carriers marriage ceremony. Were definitily substantial very proud of the actual way in our company used.Irrespective of being away from the team through the leagues offseason do the trick stoppage, Culliver fast built up securities along with out of law school teammates.Its actual as clear as day people placed their studying of.
Back to top Go down
View user profile
Sponsored content




PostSubject: Re: TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer   

Back to top Go down
 
TSA5059 2.7 GHz I2C-bus controlled low phase noise frequency synthesizer
View previous topic View next topic Back to top 
Page 1 of 1
 Similar topics
-
» What are "controlled" creatures and tribies?
» ~INFINITY DATASTREAM: EVO REPEATERS~
» New graphics card: Gigabyte GTX 460 OC 1GB
» 1945 The End of the Third Reach Phase 2 Final, by Penguindog55 - Awarded (March 2011)
» HISTORY - Phase One: I Love Money

Permissions in this forum:You cannot reply to topics in this forum
BrB cs Clan :: Clan -=|K.f.M.|=- :: Zakazivanje CW-
Jump to: