Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

XRT8000 Datasheet(PDF) 7 Page - Exar Corporation

Part # XRT8000
Description  Clock Synchronizer/Adapter for Communications
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT8000 Datasheet(HTML) 7 Page - Exar Corporation

Back Button XRT8000_06 Datasheet HTML 3Page - Exar Corporation XRT8000_06 Datasheet HTML 4Page - Exar Corporation XRT8000_06 Datasheet HTML 5Page - Exar Corporation XRT8000_06 Datasheet HTML 6Page - Exar Corporation XRT8000_06 Datasheet HTML 7Page - Exar Corporation XRT8000_06 Datasheet HTML 8Page - Exar Corporation XRT8000_06 Datasheet HTML 9Page - Exar Corporation XRT8000_06 Datasheet HTML 10Page - Exar Corporation XRT8000_06 Datasheet HTML 11Page - Exar Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 24 page
background image
XRT8000
7
Rev. 1.11
SYSTEM DESCRIPTION
On power up the clock outputs of XRT8000 will be
tri-stated. This means that no clocks will be seen at the
outputs and lock detect output will be low. After power up
the XRT8000 needs to be initialized. Therefore a serial
interface is provided to load the internal registers. These
registers will define the modes of operation, the output
frequencies and enabling the clock outputs.
Master/Forward Mode of Operation
When the XRT8000 device is operating in the
“Master/Forward” Mode, it will receive either an
“n x 2.048 MHz” or “n x 1.544 MHz” clock signal at the
FIN input (pin3); where “n” can range from 1 to 16. From
this input signal, the XRT8000 device will internally divide
and synthesize the following signals.
At the CLK1 and/or CLK2 output pins:
D
k x 56 kHz
D
k x 64 kHz
D
(k x 56 kHz)/8
D
(k x 64 kHz)/8
where k can range from 1 to 32.
At the SYNC Output pin:
D
8kHz
The user selects and configures the XRT8000 device to
generate these clock frequencies by writing the
appropriate values into the Command Registers (CR1,
CR2, CR3, CR4 and CR5), via the Microprocessor Serial
Interface.
Reverse Mode of Operation
When the XRT8000 device is operating in the “Reverse”
Mode, it will receive either a 56 kHz or 64 kHz clock signal
at the FIN input. From this input signal, the XRT8000
device will synthesize any of the following clock signal
frequencies.
At the CLK1 and/or CLK2 output pins:
D
1.544 MHz
D
2.048 MHz
D
1.544 MHz/8 = 193 kHz
D
2.048 MHz/8 = 256 kHz
At the SYNC output pin:
D
8 kHz
The user can configure the XRT8000 device to generate
these clock frequencies by writing the appropriate values
into the Command Registers (CR1, CR2, CR3, CR4 and
CR5), via the Microprocessor Serial Interface.
Note: in the REVERSE mode the contents of CR3 and
CR4 has to be all one’s.
Slave (Forward, Reverse) Mode of Operation
To activate the slave modes of operations the input MSB
must be tied low. In these modes an 8kHz signal must be
applied to the FIN input in order to obtain output
frequencies at T1 or E1 rates. The output frequencies can
be selected via the serial interface in a similar fashion as
described in the master forward and reverse modes.
The Lock Detect Output Pin
If both PLL’s are enabled and in locked state then
LOCKDET will be active. If one PLL loses lock then
LOCKDET will be false. If only one PLL is enabled then
only the active PLL will control the state of LOCKDET.


Similar Part No. - XRT8000_06

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT8000D EXAR-XRT8000D Datasheet
1Mb / 24P
   CLOCK SYNCHRONIZER/ADAPTER FOR COMMUNICATIONS
XRT8000IP EXAR-XRT8000IP Datasheet
1Mb / 24P
   CLOCK SYNCHRONIZER/ADAPTER FOR COMMUNICATIONS
More results

Similar Description - XRT8000_06

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT8000 EXAR-XRT8000 Datasheet
1Mb / 24P
   CLOCK SYNCHRONIZER/ADAPTER FOR COMMUNICATIONS
logo
Texas Instruments
LMK5C33216 TI-LMK5C33216 Datasheet
3Mb / 93P
[Old version datasheet]   LMK5C33216 Ultra-Low Jitter Clock Synchronizer with JESD204B for Wireless Communications with BAW
logo
Integrated Circuit Syst...
AV9170 ICST-AV9170 Datasheet
253Kb / 11P
   Clock Synchronizer and Multiplier
logo
Raltron Electronics Cor...
SY02-PLL RALTRON-SY02-PLL Datasheet
262Kb / 5P
   CLOCK/SYNCHRONIZER - SY02-PLL
SY02-PLL2 RALTRON-SY02-PLL2 Datasheet
152Kb / 6P
   CLOCK/SYNCHRONIZER - SY02-PLL2
logo
Integrated Device Techn...
9170B-01CS08LF IDT-9170B-01CS08LF Datasheet
302Kb / 12P
   CLOCK SYNCHRONIZER AND MULTIPLIER
AV9170 IDT-AV9170 Datasheet
190Kb / 12P
   Clock Synchronizer and Multiplier
logo
Renesas Technology Corp
IDT9170B RENESAS-IDT9170B Datasheet
484Kb / 13P
   CLOCK SYNCHRONIZER AND MULTIPLIER
2019
logo
Data Delay Devices, Inc...
3D6701 DATADELAY-3D6701 Datasheet
330Kb / 4P
   MONOLITHIC CLOCK SYNCHRONIZER (SERIES 3D6701)
logo
Analog Devices
AD9546 AD-AD9546 Datasheet
2Mb / 205P
   Dual DPLL Digitized Clock Synchronizer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com