3000-dvj.ib.rev2.doc Page 1 of 9 03/11/2008

IRT Eurocard

Type DVJ-3000

270 Mb/s SDI/ASI De-Jitteriser

Designed and manufactured in Australia

IRT can be found on the Internet at: http://www.irtelectronics.com

I R T Electronics Pty Ltd A.B.N. 35 000 832 575 26 Hotham Parade, ARTARMON N.S.W. 2064 AUSTRALIA National: Phone: (02) 9439 3744 Fax: (02) 9439 7439 International: +61 2 9439 3744 +61 2 9439 7439 Email: sales@irtelectronics.com Web: www.irtelectronics.com

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3000-dvj.ib.rev2.doc Page 2 of 9 03/11/2008

IRT Eurocard

Type DVJ-3000

270 Mb/s SDI/ASI De-Jitteriser

Instruction Book

Table of Contents Section Page Operational Safety 2 General Description 3 Technical Specifications 4 Circuit Description 5 Installation 6

Front and rear layouts 7 Maintenance & Storage 8 Warranty & Service 8

Equipment return 8 Drawing List Index 9

Operational Safety:

WARNING

Operation of electronic equipment involves the use of voltages and currents that may be dangerous to human life. Note that under certain conditions dangerous potentials may exist in some circuits when power controls are in the OFF position. Maintenance personnel should observe all safety regulations. Do not make any adjustments inside equipment with power ON unless proper precautions are observed. All internal adjustments should only be made by suitably qualified personnel. All operational adjustments are available externally without the need for removing covers or use of extender cards.

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3000-dvj.ib.rev2.doc Page 3 of 9 03/11/2008

General Description

The DVJ-3000 is designed to reduce the jitter in 270 Mb/s SDI or ASI signals. Due to the fact that true loop through inputs are not normally available in most digital equipment, the signal is frequently subject to automatic equalisation and reclocking. Together with noise pickup this leads to the inevitable increase in jitter in the signal. The only successful way to overcome this is to regenerate the signal with a new clock signal referenced to the long-term data rate. The DVJ-3000 provides this solution with a Voltage Controlled Crystal Oscillator (VCXO) operating in conjunction with a First In First Out (FIFO) memory to provide a constant output data rate, which removes any short-term data rate errors. Up to twelve DVJ-3000’s or other Eurocard modules may be housed in one 3 RU frame. The DVJ-3000 supports redundant power supply inputs. For input jitter within this mask, Output jitter < 0.125 UI. Features:

• Reduces jitter build up in distribution chains • Suitable for 270 Mb/s SDI or ASI signals • Automatic input equalisation to > 300 metres of Belden 8281 or equiv. cable • Alarm output on loss of signal input • Front panel output monitoring

VCXO&LEDs

ALARMS CONTROLLERLOGIC

INPUTEQUALISER PARALLEL

SERIAL/ FIFO SERIAL&

OUTPUTS

PARALLEL/

INPUTSDI/ASI

OUTPUTSDI/ASI

SDI/ASIFRONT PANEL

DVJ-3000 SDI/ASI De-Jitteriser block diagram

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3000-dvj.ib.rev2.doc Page 4 of 9 03/11/2008

Technical Specifications DVJ-3000

Input: Type SDI/ASI. Number 1. Impedance 75 Ω. Return loss >15 dB 5 MHz to 270 MHz. Equalisation Automatic, better than 300 metres at 270 Mb/s for Belden 8281 or

equivalent cable. Outputs: Number 1 SDI or ASI plus one SDI / ASI front panel monitoring

output. Type Reclocked/De-jittered. Level 800 mV ±10% into 75 Ω. Impedance 75 Ω. Return loss >15 dB 5 MHz to 270 MHz.

Performance: Cable compensation Automatic, better than 300 metres at 270 Mb/s for Belden 8281

or equivalent cable. Reclocking 270 Mb/s crystal locked. Insertion Delay <20 µs

Connectors: BNC 75 Ohms.

Indicators: Power LED (green) for +5 V. Signal present LED (green).

Alarm: Signal loss Contact closure. N/O, N/C & Common pins available.

Power requirement: Voltage 28 Vac CT (14-0-14) or ±16 Vdc Consumption 4 VA (<120 mA).

Other: Temperature range 0 - 50° C ambient. Mechanical Suitable for mounting in IRT 19" rack chassis with input,

output and power connections on the rear panel. Finish: Front panel Grey enamel, silk-screened black lettering & red IRT logo. Rear assembly Detachable silk-screened PCB with direct mount connectors to

Eurocard and external signals. Dimensions 6 HP x 3 U x 220 mm IRT Eurocard. Standard accessories (supplied with module) Rear connector assembly.

Due to our policy of continuing development, these specifications are subject to change without notice.

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3000-dvj.ib.rev2.doc Page 5 of 9 03/11/2008

Circuit Description Input 270 Mb/s SDI or ASI signal is fed from the input 75Ω BNC connector on the rear connector assembly to an equaliser chip, IC12. Output from this chip feeds a de-serialiser chip, IC8, where the input serial stream is converted to parallel form for inputting to IC7, which is a field Programmable Gate Array (FPGA). The FPGA performs the majority of the processing of the signal and is too complicated to describe in detail. Its programming is held in IC9. Re-clocking is provided by a 27 MHz VCXO, X01, which is controlled by IC7 through interface IC5. The re-clocked de-jitterised signal is fed out of the FPGA in parallel form to IC11, which acts as a parallel to serial converter. This serialised signal then feeds an output driver chip, IC14, which outputs the de-jitterised signal to 75Ω BNC connectors located on the rear connector assembly and the front panel. Power to the unit is via either ±16 Vdc or 14-0-14 Vac. This is rectified by diode bridges DB1 and DB2 and rectified by voltage regulators IC2, IC3 and IC4.

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3000-dvj.ib.rev2.doc Page 6 of 9 03/11/2008

Installation Pre-installation: Handling: This equipment may contain or be connected to static sensitive devices and proper static free handling precautions should be observed. Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures should be followed when inserting or removing cards from these bags. Power: AC mains supply: Ensure that operating voltage of unit and local supply voltage match and that correct rating

fuse is installed for local supply. DC supply: Ensure that the correct polarity is observed and that DC supply voltage is maintained within

the operating range specified. Earthing: The earth path is dependent on the type of frame selected. In every case particular care should be taken to ensure that the frame is connected to earth for safety reasons. See frame manual for details. Signal earth: For safety reasons a connection is made between signal earth and chassis earth. No attempt should be made to break this connection. Installation in frame or chassis: See details in separate manual for selected frame type. Input / Output connections: Input and output ASI or SDI connections are via 75Ω BNC connectors located on the rear connector assembly. Alarm Output connection: A relay alarm output is provided for loss of signal or loss of power via a four pin phoenix connector on the rear connector assembly. Normally open (N/O), Normally Closed (N/C) and two Common (COM) connections are provided. IR

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3000-dvj.ib.rev2.doc Page 7 of 9 03/11/2008

SIGNALPRESENT

OUTPUT MON

DC

DVJ-3000

N140

Front & rear panel connector diagrams The following front panel and rear assembly drawings are not to scale and are intended to show connection order and approximate layout only.

INPUT

PL6

SK1

PL2

SK3

1-COM 2-COM 3-N/C 4-N/O

OUTPUT

1

2

3

4

PL1

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3000-dvj.ib.rev2.doc Page 8 of 9 03/11/2008

Maintenance & storage Maintenance: No regular maintenance is required. Care however should be taken to ensure that all connectors are kept clean and free from contamination of any kind. This is especially important in fibre optic equipment where cleanliness of optical connections is critical to performance. Storage: If the equipment is not to be used for an extended period, it is recommended the whole unit be placed in a sealed plastic bag to prevent dust contamination. In areas of high humidity a suitably sized bag of silica gel should be included to deter corrosion. Where individual circuit cards are stored, they should be placed in antistatic bags. Proper antistatic procedures should be followed when inserting or removing cards from these bags.

Warranty & Service

Equipment is covered by a limited warranty period of three years from date of first delivery unless contrary conditions apply under a particular contract of supply. For situations when “No Fault Found” for repairs, a minimum charge of 1 hour’s labour, at IRT’s current labour charge rate, will apply, whether the equipment is within the warranty period or not. Equipment warranty is limited to faults attributable to defects in original design or manufacture. Warranty on components shall be extended by IRT only to the extent obtainable from the component supplier. Equipment return: Before arranging service, ensure that the fault is in the unit to be serviced and not in associated equipment. If possible, confirm this by substitution. Before returning equipment contact should be made with IRT or your local agent to determine whether the equipment can be serviced in the field or should be returned for repair. The equipment should be properly packed for return observing antistatic procedures. The following information should accompany the unit to be returned:

1. A fault report should be included indicating the nature of the fault 2. The operating conditions under which the fault initially occurred. 3. Any additional information, which may be of assistance in fault location and remedy. 4. A contact name and telephone and fax numbers. 5. Details of payment method for items not covered by warranty. 6. Full return address. 7. For situations when “No Fault Found” for repairs, a minimum charge of 1 hour’s labour will apply,

whether the equipment is within the warranty period or not. Contact IRT for current hourly rate. Please note that all freight charges are the responsibility of the customer. The equipment should be returned to the agent who originally supplied the equipment or, where this is not possible, to IRT direct as follows.

Equipment Service IRT Electronics Pty Ltd 26 Hotham Parade ARTARMON N.S.W. 2064 AUSTRALIA Phone: 61 2 9439 3744 Fax: 61 2 9439 7439 Email: service@irtelectronics.com

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3000-dvj.ib.rev2.doc Page 9 of 9 03/11/2008

Drawing List Index Drawing # Sheet # Description 804453 1 DVJ-3000 270 Mbit Jitter Eliminator circuit diagram – sheet 1. 804453 2 DVJ-3000 270 Mbit Jitter Eliminator circuit diagram – sheet 2. 804453 3 DVJ-3000 270 Mbit Jitter Eliminator circuit diagram – sheet 3.

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EG

C10100n

GN

D

51 10

3 8

RELAY1

RELAY-SPCO

VCC

TR3

BSS123

GN

D

RELAY

D2BAV99

REL

AY

N/C

N/O

CO

M

C810uL2 470nH

VCC

1 2 3 4 5 6 7 8910111213141516

SW1

N/C

RN1

N/C

GN

D8

G5

nQ7

H6

F4

E3

CLO

CK

2

nLO

AD1

Q9

SA10

A11

B12

C13

D14

CLK

INH

15

VCC

16

IC1

N/C

SCLK

SDA

SLE

GN

D

C1N/C

GN

D

VCC

VCC

GN

D

BER

SWH

SWG

SWF

SWE

SWD

SWC

SWB

SWA

BER

SWA

SWB

SWC

SWD

SWE

SWF

SWG

SWH

LK1

270M

BIT

JITT

ER E

LIM

INAT

OR

C22100nF

C13100n

5VR

EG

GN

DVCONT

VCO

NT

NC

1

IN2

GN

D3

OU

T4

VCC

5IC5

74HCT1G04

R12

22R

C4947p

GN

D

R3010k

R314M7

R324M7

IRT C

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www.irtco

mmunica

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.com

Title

SCAL

E

SIZE

Shee

tD

RA

WN

CH

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DEN

G. A

PP.

Rev

isio

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DO

NO

T C

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NO

RD

ISC

LOSE

TO

AN

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IRD

PAR

TYW

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OU

T W

RIT

TEN

CO

NSE

NT

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IRT

Elec

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cs P

ty. L

td.

Dra

win

g N

o.

CO

PYR

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T

ARTA

RM

ON

NSW

AU

STR

ALIA

206

4

A3

N.T

.S.

3

DVJ

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0

8044

53

Dat

e:3

9-Ju

l-200

2

SK1

1 2 3 4

PL1

CO

N4X

1

1 2 3

J1 CO

N3X

1

1A 1B 2A 2B 3A 3B 4A 4B 5A 5B 6A 6B 7A 7B 8A 8B 9A 9B 10A

10B

11A

11B

12A

12B

13A

13B

14A

14B

15A

15B

16A

16B

17A

17B

18A

18B

19A

19B

20A

20B

21A

21B

22A

22B

23A

23B

24A

24B

25A

25B

26A

26B

27A

27B

28A

28B

29A

29B

30A

30B

31A

31B

32A

32B

M2

M1

SK2

DIN

64F

GN

DR

SK3

GN

DR

GN

DR

1 2 3 4 5 6 7 8

PL3

N/C

1 2 3 4 5 6 7 8

PL2

N/C

GN

DR

1 - C

OM

2 - C

OM

3 - N

/C4

- N/O

TXA

TXB

RX

AR

XB RA

L2

15nH

RA

L1

22nH

270M

BIT

JITT

ER E

LIM

INAT

OR

IRT C

ommun

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www.irtco

mmunica

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.com