Snell IQSYN21 Manual del operador

snellgroup.com

User Instruction Manual

IQSYN21

HD/SD-SDI Frame Synchronizer with Embedded Audio Processing

IQSYN21 www.snellgroup.com Information and Notices

Information and Notices

information now allowed by statutory or judicial law or hereinafter granted, including without

limitation, material generated from the software programs which are displayed on the screen

such as icons, screen display looks etc.

Information in this manual and software are subject to change without notice and does not

represent a commitment on the part of Snell Limited. The software described in this manual is

furnished under a license agreement and can not be reproduced or copied in any manner

without prior agreement with Snell Limited. or their authorized agents.

Reproduction or disassembly of embedded computer programs or algorithms prohibited.

No part of this publication can be transmitted or reproduced in any form or by any means,

electronic or mechanical, including photocopy, recording or any information storage and

retrieval system, without permission being granted, in writing, by the publishers or their

authorized agents.

Snell operates a policy of continuous improvement and development. Snell reserves the right

to make changes and improvements to any of the products described in this document

without prior notice.

Contact Details

Customer Support

For further details of our Regional Customer Support Offices, please visit the Snell website

and navigate to Support/Customer Support Contacts.

http://www.snellgroup.com/support/customer-support/customer-support/

Customers with a support contract should call their personalized number, which can be found

in their contract, and be ready to provide their contract number and details.

United Kingdom (HQ)

+44 (0) 118 921 4214 (tel)

+44 (0) 118 921 4268 (fax)

[email protected]

Regional Support Contacts

Snell USA

+1 818 556 2616 (tel)

+1 818 556 2626 (fax)

[email protected]

Snell Germany

+49 (0) 6122 98 43 0 (tel)

+49 (0) 6122 98 43 44 (fax)

[email protected]

Snell Spain

+34 91 446 23 07 (tel)

+34 91 446 17 74 (fax)

[email protected]

Snell France

+33 1 41 95 30 50 (tel)

+33 1 41 95 30 51 (fax)

[email protected]

Snell Asia Pacific

+852 2356 1660 (tel)

+852 2575 1690 (fax)

[email protected]

Snell India

+91 124 462 6000 (tel)

+91 124 437 5888 (fax)

[email protected]

Snell Russia

+7 499 248 3443 (tel)

+7 499 248 1104 (fax)

[email protected]

Snell China

+86 10 6515 6158 (tel)

+86 10 6515 5659 (fax)

[email protected]

IQSYN21 www.snellgroup.com Contents

Contents

Information and Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Order Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Rear Panel View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.4 Enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.4.1 B-style Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.4.2 A-style Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.5 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2. Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3. Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 IQSYN2126-1A / IQSYN2127-2A / IQSYN2139-2A . . . . . . . . . . . . . . . . . . . . . . 14

3.1.1 SDI Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1.2 SDI Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1.3 Analog Reference Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1.4 GPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4. Card Edge LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5. Controlling the IQSYN21 from the RollCall Control Panel . . . . . . . . . . . . . . . . . . 16

5.1 The Information Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1.1 Video Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1.2 Audio Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5.2 Video Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.1 Input Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.2 Input Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.3 Input Loss If . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.2.4 Agile V-Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.5 Valid Input Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.6 CRC/EDH Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.3 Input Backup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.1 Enable Backup Input Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.2 Priority / Reversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3.3 Backup State Select. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.4 Master State Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.5 Input Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.6 Master (Inp 1) Carrier Detect Fail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.7 Master (Inp 1) Invalid Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.8 Master (Inp 1) Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.3.9 Master (Inp 1) Embedded Audio Fail . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.3.10 Backup (Inp 2) Carrier Detect Fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.4 Video Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.4.1 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.4.2 Output Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.4.3 Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.4.4 Default Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.4.5 ProcAmp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.4.6 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.5 Embedded Proc Amp Groups 1-2 and 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.5.1 Groups 1 to 4, Pairs 1 and 2 (Embed 1-8 L & R) . . . . . . . . . . . . . . . . . . 26

5.6 Audio Mixer 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.6.1 Audio Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.6.2 Mixer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.7 Embedded Routing Groups 1-2 and 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

IQSYN21 www.snellgroup.com Contents

5.7.1 Link L+R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.8 Embed On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.8.1 Embedder Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.8.2 Group/Channel Active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.9 Embedded I/P Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.9.1 Embedded Audio Input Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.10 Embedded O/P Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.10.1 Embedded Audio Output Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.11 Video Delay/DolbyE/Genlock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.11.1 Genlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.11.2 Delay Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.11.3 Dolby E Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.11.4 Dolby E Auto Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.12 Audio Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.12.1 Audio Delay Select - A/B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.12.2 Internal Video Delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.12.3 Smooth Delay Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.12.4 Embed Delay 1 to 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.12.5 Reliable Audio Alignment - Use Cases. . . . . . . . . . . . . . . . . . . . . . . . . 39

5.13 ANC Blank & Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.13.1 VBI for Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.13.2 Blank Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.13.3 Input Ancillary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.13.4 Ancillary Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.14 GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5.14.1 GPIO 1 and GPIO 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5.14.2 GPI 1 (Input) or GPI 2 (Input). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5.14.3 GPI 1 (Output) and GPI 2 (Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.14.4 GPIO Input Pulse Width Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.14.5 GPIO Interface Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.15 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.15.1 Recall Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.15.2 Save Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.15.3 Last Recalled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.15.4 Save Memory Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.16 RollTrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.16.1 Disable All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.16.2 RollTrack Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.16.3 RollTrack Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.16.4 RollTrack Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

5.16.5 RollTrack Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

5.16.6 RollTrack Sending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

5.16.7 RollTrack Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

5.17 Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.17.1 Video Input Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.17.2 In1/2 Aud State Logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.17.3 In1/2 Aud Type Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.17.4 O/P Aud Level Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.17.5 O/P Aud State Logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.17.6 O/P Aud Type Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.17.7 O/P Dolby ELogging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.17.8 Ref/Output Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

5.17.9 Misc. Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

5.17.10 Log Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

5.18 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

5.18.1 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

5.18.2 Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

5.18.3 Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Appendix A. RollTrack Audio Delay Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

IQSYN21 www.snellgroup.com Contents

A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

A.2 Configuration: Single Video Unit and Single Audio Delay. . . . . . . . . . . . . . . . . . 58

A.3 Configuration: Multiple Video Units and Audio Delays . . . . . . . . . . . . . . . . . . . . 58

A.4 Configuration: Vertical Delay Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.5 Configuration: Horizontal Delay Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

A.6 Configuration: Matrix Delay Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.7 Connecting up a Audio Delay Tracking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

A.7.1 Configuration: An Array of Matrix Clusters . . . . . . . . . . . . . . . . . . . . . . 62

Appendix B. Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

B.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

B.2 How a Firewall Equipped Product Behaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

B.3 Why Use a Firewall? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

B.3.1 Using a Firewall at the Beginning of a Chain. . . . . . . . . . . . . . . . . . . . . 64

B.3.2 Using a Firewall to Protect MPEG Encoders . . . . . . . . . . . . . . . . . . . . . 64

B.4 How a Firewall is Tested. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

B.5 Performance of Firewall Equipped Products Versus Genlock Mode . . . . . . . . . 65

B.6 When Firewall Protection is Not Provided. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

B.6.1 Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

B.6.2 Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Appendix C. Ancillary Passing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

C.1 SMPTE 272M and 299M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

C.2 SMPTE 291M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Appendix D. Audio Processing Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

D.1 Audio Processing Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

D.2 Audio Processing – Control Panel Screens Associations. . . . . . . . . . . . . . . . . . 68

D.3 SDI Demultiplexer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

D.4 Audio Delay Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

D.5 Tone Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

D.6 Mixers 1 to 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

D.7 Embedder ProcAmps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

D.8 SDI TX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

D.9 Dolby E Audio Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Appendix E. Dolby E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

E.1 What is Dolby E? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

E.2 Dolby E and Metadata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

E.3 Dolby E Partner Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

E.4 16- and 20-bit Dolby E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

E.5 Dolby Digital and AC3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

E.6 Metadata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

IQSYN21 www.snellgroup.com Introduction

1. Introduction

1.1 Module Description

The IQSYN21 provides synchronization for HD-SDI 1.5 Gbps or SD-SDI 270 Mbps signals

with 16-channel embedded audio processing including automatic synchronization of Dolby E

signals. Using agile synchronization that is router-switching-tolerant makes this module ideal

for all HD/SD-SDI lines input applications. A video processing amplifier provides complete

control over the video levels, and audio processing features include automatic Dolby E

re-alignment, PCM tracking audio delay, channel level routing and mixing. The IQSYN21 is

also able to directly pass audio channel status information to handle upstream switching of

SDI containing PCM and Dolby E embedded audio.

The IQSYN21's flexibility in its rate-agile HD and SD support means that 16, 20 and 24-bit

audio sources can all be handled. PCM audio can be processed alongside Dolby E and other

non-PCM signals with selection made on a pair-by-pair basis. Internally, the PCM audio is

treated as separate channels allowing stereo, mono and discrete surround-sound operation

as well as multi-lingual working. Any input PCM audio channel (not just pair) can be routed to

any output channel.

The sophisticated audio processing features include comprehensive audio delays, gain

control, phase inversion and mixing.

The module is fully Dolby E compatible and can handle other non-PCM audio streams

including Dolby AC3 (Dolby Digital) passed as AES data.

Unlike other audio processing modules, these units also have dedicated video control

features that include video processing amplifier controls and up to 11 frames of video delay.

The video delay can work in conjunction with the sophisticated delay features available for the

audio channels. Delay can be inserted in the video path to compensate for audio processing.

It can also be inserted in the audio path to compensate for video processing. It can be

inserted in both to simply re-time the complete signal.

IQSYN21 www.snellgroup.com Introduction

1.2 Order Codes

The following product order codes are covered by this manual:

IQSYN2126-1A HD-SDI and SD-SDI Synchronizer with Embedded Audio

Processing. 3 outputs, 1 GPI.

IQSYN2127-2A HD-SDI and SD-SDI Synchronizer with Embedded Audio

Processing. 4 outputs, 2 GPIs.

IQSYN2139-2A HD-SDI and SD-SDI Synchronizer with Embedded Audio Processing

and relay input bypass. 4 outputs, 2 GPIs.

IQSYN21 www.snellgroup.com Introduction

1.3 Rear Panel View

The following rear panel types are available:

IQSYN2126-1A

IQSYN2127-2A

IQSYN2139-2A

IQSYN21 www.snellgroup.com Introduction

1.4 Enclosures

The module can be fitted into the enclosure types shown.

1.4.1 B-style Enclosure

Enclosure order codes: IQH3B-S-0, IQH3B-S-P

1.4.2 A-style Enclosures

Enclosure order code: IQH1A-S-P

Enclosure order codes: IQH3A-S-0, IQH3A-S-P

Enclosure order codes: IQH3A-E-0, IQH3A-E-P, IQH3A-0-0, IQH3A-0-P

Enclosure order code: IQH1A-S-P

Important: Although IQ modules are interchangeable between enclosures, their rear panels are

enclosure specific. An IQH3B enclosure accepts modules with either “A” or “B” order

codes. An IQH3A or IQH1A enclosure accepts modules with “A” order codes only.

IQSYN21 www.snellgroup.com Introduction

1.5 Features

• Agile HD/SD-SDI synchronizer with up to 11 frames of video delay and tracking audio

delay

• Handles up to 16 channels of embedded audio present on the incoming SDI stream

including ancillary cleaner for removal of unused ancillary data

• Embedded Dolby E support – pair routing and automatic re-alignment and

synchronization to the video frame boundary

• Dual selectable HD/SD-SDI inputs with auto switching

• Agile synchronizer locking capable of handling mis-timed inputs of up to 5 lines

without output video disturbance (SMPTE RP168 compliant)

• Standards supported:

• HD-SDI to SMPTE 292M/274M/296M

• SD-SDI to SMPTE 259M-C

• Capable of referencing to a bi-level or tri-level reference for HD timing

• Precision wide range genlock adjustment allowing you to time any HD/SD-SDI

signal to pixel accuracy

• Independent horizontal and vertical ancillary data blanking

• Tracking audio delay which seamlessly tracks the internal video delay and external

RollTrack or GPI inputs

• 2 independent audio delay controllers including selectable fixed delay and

RollTrack/GPI tracking delays for each (either selectable for eight pairs)

• Any group of embedded audio may be passed unchanged if not selected for

processing or blanked

• Channel level (Sub-frame) routing

• 4 off 4 channel assignable audio mixers

• Audio processing amplifier and delay

• Built in Dolby E timing monitor allows accurate manual adjustment of Dolby E guard

band position

• Input loss detection – input pass through/switch or black/pattern/freeze and

• Input SDI, CRC, EDH and ANC data checking and reporting

• Emergency input bypass option enables the SDI input signal to be passed through to

SDI output 1 in the event of frame power failure or module removal

• Can be used as a video delay without synchronization, up to 11 frames

• Video processing controls including video gain and offset

• In-built test pattern generator

• 16x user memories

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