CDCE62005 datasheet(71/80 Pages) TI

Part #	CDCE62005

Description	Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs

Download	80 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

Logo

71 / 80 page

DataConverterJitterRequirements

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140

1

10

100

1000

10000

0

2

4

6

8

10

12

14

16

18

20

22

24

26

50fs

100fs

350fs

1ps

SERDES

CleanedClock

Data

CDCE 62005

RecoveredClock

ASICClock

ASIC

CDCE62005

www.ti.com

SCAS862C – NOVEMBER 2008 – REVISED FEBRUARY 2010

Figure 45. Data Converter Jitter Requirements

CDCE62005 SERDES Startup Mode

A common scenario involves a host communicating to a satellite system via a high-speed wired communications

link. Typical communications media might be a cable, backplane, or fiber. The reference clock for the satellite

system is embedded in the high speed link. This reference clock must be recovered by the SERDES, however,

the recovered clock contains unacceptable levels of jitter due to a degradation of SNR associated with

transmission over the media. At system startup, the satellite system must self-configure prior to the recovery and

cleanup of the reference clock provided by the host. Furthermore, upon loss of the communication link with the

host, the satellite system must continue to operate albeit with limited functionality. Figure 46 shows a block

diagram of an optical based system with such a mechanism that takes advantage of the features of the

CDCE62005:

Figure 46. CDCE62005 SERDES Startup Overview

The functionality provided by the Smart Multiplexer provides a straightforward implementation of a SERDES

clock link. The Auxiliary Input provides a startup clock because it connects to a crystal. The on-chip EEPROM

determines the default configuration at power-up; therefore, the CDCE62005 requires no host communication to

begin cleaning the recovered clock once it is available. The CDCE62005 immediately begins clocking the

satellite components including the SERDES using the crystal as a clock source and a frequency reference. After

the SERDES recovers the clock, the CDCE62005 removes the jitter via the on-chip synthesizer/loop filter. The

recovered clock from the communications link becomes the frequency reference for the satellite system after the

smart multiplexer automatically switches over to it. The CDCE62005 applies the cleaned clock to the recovered

clock input on the SERDES; thereby establishing a reliable communications link between host and satellite

systems.

Submit Documentation Feedback

71

Product Folder Link(s) :CDCE62005

Similar Part No. - CDCE62005

Manufacturer	Part #	Datasheet	Description
Texas Instruments	CDCE62005	2Mb / 76P	[Old version datasheet] Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs
	CDCE62005	2Mb / 85P	[Old version datasheet] 3:5 Clock Generator
	CDCE62005RGZR	2Mb / 76P	[Old version datasheet] Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs
	CDCE62005RGZR	2Mb / 85P	[Old version datasheet] 3:5 Clock Generator
	CDCE62005RGZT	2Mb / 76P	[Old version datasheet] Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs

More results

Similar Description - CDCE62005

Manufacturer	Part #	Datasheet	Description
Texas Instruments	CDCE62005	2Mb / 76P	[Old version datasheet] Five/Ten Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs
	CDCE62002	1Mb / 49P	[Old version datasheet] Four Output Clock Generator/Jitter Cleaner With Integrated Dual VCOs
	CDCE18005	1Mb / 58P	[Old version datasheet] Five/Ten Output Clock Generator/Buffer
Analog Devices	AD9523	1,011Kb / 60P	Jitter Cleaner and Clock Generator
Texas Instruments	CDCE72010	1Mb / 73P	[Old version datasheet] Ten Output High Performance Clock Synchronizer, Jitter Cleaner, and Clock Distributor
Texas Instruments	CDCE72010	1Mb / 70P	[Old version datasheet] Ten Output High Performance Clock Synchronizer, Jitter Cleaner, and Clock Distributor
Analog Devices	AD9524	973Kb / 56P	Jitter Cleaner and Clock Generator
Texas Instruments	CDCM6208V1F	2Mb / 87P	[Old version datasheet] 2:8 Clock Generator, Jitter Cleaner with Fractional Dividers
	CDCM6208	2Mb / 89P	[Old version datasheet] 2:8 Clock Generator, Jitter Cleaner With Fractional Dividers
	CDCM6208	2Mb / 92P	[Old version datasheet] 2:8 Clock Generator, Jitter Cleaner With Fractional Dividers

More results

CDCE62005 Datasheet(PDF) 71 Page - Texas Instruments

CDCE62005 Datasheet(HTML) 71 Page - Texas Instruments

Similar Part No. - CDCE62005

Similar Description - CDCE62005

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 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Datasheet Download

Link URL