evertz S7720AD-A4-LTC User manual

S7720AD-A4-LTC
Serial Digital Audio De-embedder
And VITC to LTC Translator
Instruction Manual
© Copyright 2003
EVERTZ MICROSYSTEMS LTD.
5288 John Lucas Drive, Burlington, Ontario, Canada, L7L 5Z9
Phone: [phone]
Fax: [phone]
Internet: Sales: [email protected]
Tech Support: [email protected]
Web Page: http://www.evertz.com
Version 1.0 March 2003
The material contained in this manual consists of information that is the property of Evertz Microsystems and is
intended solely for the use of purchasers of the 7700 Series Modules. Evertz Microsystems expressly prohibits the
use of this manual for any purpose other than the operation of the 7700 Series modules.
All rights reserved. No part of this publication may be reproduced without the express written permission of Evertz
Microsystems Ltd. Copies of this guide can be ordered from your Evertz products dealer or from Evertz
Microsystems.

INFORMATION TO USERS IN EUROPE
NOTE
CISPR 22 CLASS A DIGITAL DEVICE OR PERIPHERAL
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to the European Union EMC directive. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
INFORMATION TO USERS IN THE U.S.A.
NOTE
FCC CLASS A DIGITAL DEVICE OR PERIPHERAL
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
WARNING
Changes or Modifications not expressly approved by Evertz Microsystems Ltd. could
void the user’s authority to operate the equipment.
Use of unshielded plugs or cables may cause radiation interference. Properly shielded
interface cables with the shield connected to the chassis ground of the device must be
used.

S7720AD-A4-LTC SDI Audio De-Embedder with VITC to LTC Translator
Revision 1.0
TABLE OF CONTENTS
1. OVERVIEW ............................................................................................................................1
2. INSTALLATION .....................................................................................................................2
2.1. SDI VIDEO CONNECTIONS ...................................................................................................... 2
2.2. AES AUDIO CONNECTIONS..................................................................................................... 2
2.3. ANALOG AUDIO AND LTC CONNECTIONS............................................................................ 2
2.4. POWER ...................................................................................................................................... 3
3. SPECIFICATIONS .................................................................................................................3
3.1. SERIAL VIDEO INPUT ............................................................................................................... 3
3.2. SERIAL VIDEO OUTPUTS......................................................................................................... 3
3.3. BALANCED AES AUDIO OUTPUTS......................................................................................... 3
3.4. ANALOG AUDIO OUTPUT ........................................................................................................ 4
3.5. VITC READER............................................................................................................................ 4
3.6. LINEAR TIME CODE OUTPUT .................................................................................................. 4
3.7. SYSTEM PERFORMANCE ........................................................................................................ 4
3.8. ELECTRICAL ............................................................................................................................. 4
3.9. PHYSICAL.................................................................................................................................. 4
4. STATUS INDICATORS..........................................................................................................5
4.1. MODULE STATUS LEDS........................................................................................................... 5
4.2. AUDIO GROUP STATUS LEDS ................................................................................................ 5
5. CARD EDGE CONTROLS.....................................................................................................6
5.1. SELECTING THE AUDIO GROUP THAT WILL BE DE-EMBEDDED....................................... 6
5.2. CONTROLLING THE VITC READER AND LTC TRANSLATOR
(SETTING THE VITC READER LINE NUMBER)....................................................................... 6
5.3. ADJUSTING THE VOLUME LEVEL ON THE ANALOG OUTPUTS ......................................... 7
6. JUMPERS ..............................................................................................................................8
6.1. FRAME STATUS JUMPER ........................................................................................................ 8
6.2. UPGRADE JUMPER .................................................................................................................. 9

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7. UPGRADING FIRMWARE .................................................................................................... 9
7.1. PART 1: CONFIGURING THE UNIT FOR FIRMWARE UPGRADES ....................................... 9
7.2. PART 2: TERMINAL PROGRAM SETUP.................................................................................. 9
7.3. PART 3: UPLOADING THE NEW FIRMWARE ....................................................................... 10
7.4. PART 4: COMPLETING THE UPGRADE ................................................................................ 10
Figures
Figure 1: 7720AD-A4-LTC Block Diagram............................................................................................................ 1
Figure 2: S7720AD-A4-LTC Rear Panel ............................................................................................................... 2
Figure 3: Location of Jumpers and Status LEDS.................................................................................................. 8
Tables
Table 1: Audio Group Status LEDs ....................................................................................................................... 5
Table 2: DIP Switch Functions .............................................................................................................................. 6
Table 3: Audio Group Switch Settings .................................................................................................................. 6
Table 4: VITC Reader Line Select Switch Settings............................................................................................... 7
Table 5: Analog Audio Level Adjustment LEDs .................................................................................................... 8

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Revision 1.0
REVISION HISTORY
REVISION DESCRIPTION DATE
1.0 First Release Mar 03
Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for
the rights of third parties, which may be effected in any way by the use thereof. Any representations in this document concerning performance of
Evertz products are for informational use only and are not warranties of future performance, either express or implied. The only warranty offered by
Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation form.
Although every attempt has been made to accurately describe the features, installation and operation of this product in this manual, no warranty is
granted nor liability assumed in relation to any errors or omissions unless specifically undertaken in the Evertz sales contract or order confirmation.
Information contained in this manual is periodically updated and changes will be incorporated into subsequent editions. If you encounter an error,
please notify Evertz Customer Service department. Evertz reserves the right, without notice or liability, to make changes in equipment design or
specifications.

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S7720AD-A4-LTC SDI Audio De-Embedder with VITC to LTC Translator
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1. OVERVIEW
The S7720AD-A4-LTC Audio De-embedders extract embedded audio as specified by SMPTE 272M from
a 270 Mb/s serial digital video signal. In addition the S7720AD-A4-LTC has the ability to read vertical
interval time code (D-VITC) from the SDI video and convert it to linear time code (LTC).
SMPTE 272M allows for up to four groups (4 channels/group) to be embedded within a serial digital signal.
The S7720AD-A4-LTC can de-embed one audio group onto two balanced AES outputs and 4 balanced
analog audio outputs.
Features:
•Front panel LEDs indicating module status, video presence, selected audio group data is present
•LED indication for the presence of each of the 4 audio groups within the input video
•Audio group selection via card edge DIP switches
•4 balanced audio channel outputs or 3 balanced audio an one balanced LTC (DIP Switch
selectable)
•DIP switch selection of VITC reader line
Equalizer S / P
Audio Groups
Audio
De-Embedder
& VITC to LTC
Translator
Serial Input
270 Mb/s
(SMPTE 259M)
with embedded
Audio and VITC
Serial Outputs
270 Mb/s
1
2
Balanced
Analog Audio
or LTC
Outputs
D to A
Converter
D to A
Converter
Balanced AES Outputs
(AES3-1992)
2
1
3
4
AES
Formatter
AES
Formatter
Cable
Driver
Cable
Driver
Cable
Driver
Control
Card
Edge
Module
Status
Video
Present
Audio
Present
Figure 1: 7720AD-A4-LTC Block Diagram

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2. INSTALLATION
The S7720AD-A4-LTC module comes in the 7700 series standalone enclosure. The S7720AD-A4-LTC
module comes with an external 12 VDC power adapter that plugs into your local power mains. The rear
plate of the enclosure has 2 BNC connectors, a 6 pin terminal strip and a 12 pin terminal strip. The rear
plate also has a DC power jack and a 9 pin female D connector that is used for upgrading the module
firmware.
Figure 2: S7720AD-A4-LTC Rear Panel
2.1. SDI VIDEO CONNECTIONS
SDI INPUT This BNC connector is for 10-bit serial digital video signals with embedded audio
compatible with the SMPTE 259M standard.
SDI OUTPUT This BNC connector is a serial component video output that contains an equalized copy of
the input video.
2.2. AES AUDIO CONNECTIONS
This 6 pin terminal block contains balanced AES that has been de-embedded from the SDI video. The
output audio cables can be secured into the removable portion of the terminal strips using a small
screwdriver. The removable part of the terminal strip is then inserted into the rear panel.
AES OUTPUT 1 AES audio output from channels 1 and 2 of the audio group selected by DIP switches 1
and 2 for de-embedding.
AES OUTPUT 2 AES audio output from channels 3 and 4 of the audio group selected by DIP switches 1
and 2 for de-embedding.
2.3. ANALOG AUDIO AND LTC CONNECTIONS
This 12 pin terminal block contains balanced analog audio that has been de-embedded from the SDI
video. The output audio cables can be secured into the removable portion of the terminal strips using a
small screwdriver. The removable part of the terminal strip is then inserted into the rear panel.
ANALOG OUTPUT 1 to 4 Analog audio output from channels 1 to 4 of the audio group selected by DIP
switches 1 and 2 for de-embedding.
Analog output 4 can also be selected as a LTC output from the D-VITC being read from the
SDI video. (See section 5.2)

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2.4. POWER
The S7720AD-A4-LTC comes with an auto-ranging DC voltage adapter that automatically senses the
input voltage. Power should be applied by connecting a 3-wire grounding type power supply cord to the
power entry module on the DC voltage adapter. The power cord should be minimum 18 AWG wire size;
type SST marked VW-1, maximum 2.5 m in length. The DC cable of the voltage adapter should be
connected to the DC power jack on the S7720AD-A4-LTC module rear panel.
The S7720AD-A4-LTC is fitted with an internal auto-resetting fuse. To reset the fuse, disconnect the DC
power source for 30 seconds and then reconnect it to reapply power to the unit.
3. SPECIFICATIONS
3.1. SERIAL VIDEO INPUT
Standard: SMPTE 259M C – 525 and 625 component.
Connector: 1 BNC per IEC 169-8
Equalization: Automatic 300m @ 270 Mb/s with Belden 8281 or equivalent cable
Return Loss: > 15 dB up to 540 Mb/s
3.2. SERIAL VIDEO OUTPUTS
Standard: same as input - equalized
Connectors: 1 BNC per IEC 169-8
Signal Level: 800mV nominal
DC Offset: 0V ±0.5V
Rise and Fall Time: 740ps nominal
Overshoot: <10% of amplitude
Return Loss: > 15 dB up to 270 Mb/s
3.3. BALANCED AES AUDIO OUTPUTS
Number of Outputs: 2
Standard: AES3-1992 balanced AES
Connectors: 6 pin removable terminal strip
Sampling Rate: 48 kHz
Signal Level: 5V p-p
Impedance: 110 Ohms

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3.4. ANALOG AUDIO OUTPUT
Number of Outputs: 4
Output 4 is used for LTC when VITC reader is enabled
Type: Balanced analog audio
Connector: 12 pin removable terminal strip
Output Impedance: 66Ω
Signal Level: 0dB FS =>8 to 24dBu into 10 kΩ loads (user settable)
0dB FS =>8 to 22dBu into 600 Ω loads (user settable)
Frequency Response: < ±0.1dB (20Hz to 20kHz)
THD+N: > 90dB RMS @ 1kHz, with 24dBu output
> 100dB RMS @ 20Hz to 20kHz, with 24dBu output
Crosstalk isolation: > 100dB RMS (20Hz to 20kHz)
3.5. VITC READER
Standard: SMPTE 12M, SMPTE 266M
Reader Line Range:
525 line video: 10 to 31
625 line video: 6 to 31
3.6. LINEAR TIME CODE OUTPUT
Standard: SMPTE 12M
Rate:
525 line video: 29.97 Frames per second
625 line video: 25 Frames per second
Number of Outputs: 1 (when VITC reader is enabled)
Type: Balanced
Connector: 4 pins on 12 pin removable terminal strips
Output Impedance: 66Ω balanced
Signal Level: 1.6 volts p-p nominal
3.7. SYSTEM PERFORMANCE
Deembedding Latency:
SDI to AES: 1.35 msec (7720AD-A4)
SDI to Analog: 2.25 msec
3.8. ELECTRICAL
Voltage: + 12VDC (auto ranging 100-240 VAC to 12 VDC power adapter provided)
Power: 12 watts
EMI/RFI: Complies with FCC Part 15, class A and EU EMC directive.
3.9. PHYSICAL
Dimensions: 14 “ L x 4.5 “ W x 1.9 “ H
(355 mm L x 114 mm W x 48 mm H)
Weight: approx. 1.5 lbs. (0.7 Kg)

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4. STATUS INDICATORS
The location of the status LEDs is shown in Figure 3.
4.1. MODULE STATUS LEDS
MODULE OK This Green LED will be On when the module is operating properly
LOCAL FAULT This Red LED makes it easy to identify one module in a frame that is missing an
essential input or has another fault.
The LED will blink on and off if the microprocessor is not running.
The LED will be on solid when input video is lost, the selected audio group is
missing or has DBN errors, or there is a fault in the module power supply.
VIDEO PRESENT: This Green LED will be On when there is a valid video signal present at the module
input.
AUDIO PRESENT: This Green LED will be On if the audio group(s) selected is present and free from
DBN errors.
4.2. AUDIO GROUP STATUS LEDS
Four LEDs located on the lower half (opposite the DIP switch) indicates the presence of the four audio
groups as shown below. Audio Group LED 1 is located near the center of the printed circuit board.
Audio Group
LED
Color Audio Group Status
1Off Group 1 embedded audio is not present on the video input.
Green Group 1 embedded audio is present on the video input.
2Off Group 2 embedded audio is not present on the video input.
Green Group 2 embedded audio is present on the video input.
3Off Group 3 embedded audio is not present on the video input.
Green Group 3 embedded audio is present on the video input.
4Off Group 4 embedded audio is not present on the video input.
Green Group 4 embedded audio is present on the video input.
Table 1: Audio Group Status LEDs
The audio group LEDs are also used in conjunction with the pushbutton and toggle switch to allow the
user to adjust the volume level of each of the 4 analog outputs. See section 0 for information on adjusting
the analog volume levels.

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5. CARD EDGE CONTROLS
An 8 position DIP switch gives the user control over the de-embedder. The ON position is closest to the
PCB. Table 2 gives an overview of the DIP switch functions. Sections 5.1 to 5.3 show the assigned DIP
switch functions. There is also a toggle switch and pushbutton that are used to set the volume level for
the analog outputs.
In order to gain access to these controls you will need to remove the front cover. Turn the two captive
screws located on the front panel counter clockwise several turns until they release completely from the
top cover. Carefully remove the front cover. To replace the front cover, align the two captive screws with
the threaded inserts of the top cover. Make sure that the is at the top. Turn the two captive
screws clockwise several turns until they are finger tight.
DIP Switch Function
1
2AES 1 and AES 2 Group Selection
3
4
5
6
7
VITC Reader Line Select
8 Analog Audio Volume Adjust Enable
Table 2: DIP Switch Functions
5.1. SELECTING THE AUDIO GROUP THAT WILL BE DE-EMBEDDED
The SMPTE 272M standard permits up to 4 groups of 4 audio channels to be embedded into the 270 Mb/s
video bitstream.
The S7720AD-A4-LTC de-embeds one group of audio (selected by switches 1 and 2) onto the AES and
analog outputs.
DIP Switch
12
Audio Group Output on
AES and Analog Outputs
Off Off 1
Off On 2
On Off 3
On On 4
Table 3: Audio Group Switch Settings
5.2. CONTROLLING THE VITC READER AND LTC TRANSLATOR
(SETTING THE VITC READER LINE NUMBER)
Switches 3 to 7 are used to select the line that the VITC reader will recover vertical interval time code
from. When switches 3 to 7 are set to a valid line as shown in Table 4 the VITC reader will be enabled for
reading on the selected line and analog audio output 4 will be used to output LTC that is slaved to the
decoded VITC. When switches 3 to 7 are all Off the VITC reader will be disabled and analog audio output
4 will be used to outputting the audio from channel 4.
Dip Switch Line Selected

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Revision 1.0 S7720AD-A4-LTC-7
3 4 5 6 7 525 Video 625 Video
Off Off Off Off Off Disabled Disabled
Off On On Off Off Disabled 6
On On On Off Off Disabled 7
Off Off Off On Off Disabled 8
On Off Off On Off Disabled 9
Off On Off On Off 10 10
On On Off On Off 11 11
Off Off On On Off 12 12
On Off On On Off 13 13
Off On On On Off 14 14
On On On On Off 15 15
Off Off Off Off On 16 16
On Off Off Off On 17 17
Off On Off Off On 18 18
On On Off Off On 19 19
Off Off On Off On 20 20
On Off On Off On 21 21
Off On On Off On 22 22
On On On Off On 23 23
Off Off Off On On 24 24
On Off Off On On 25 25
Off On Off On On 26 26
On On Off On On 27 27
Off Off On On On 28 28
On Off On On On 29 29
OffOnOnOnOn 30 30
On On On On On 31 31
Table 4: VITC Reader Line Select Switch Settings
5.3. ADJUSTING THE VOLUME LEVEL ON THE ANALOG OUTPUTS
The toggle switch and pushbutton on the card edge are used to adjust the volume control of the analog
outputs individually.
!The level of analog output 4 does not affect the LTC level when the VITC reader is
enabled.
When DIP switch 8 is Off, volume level adjustments are disabled to prevent accidental changes. When
DIP switch 8 is On the user can adjust the volume of each of the analog audio outputs.
The three position, return to center toggle switch is used in conjunction with a momentary pushbutton to
adjust the level of the outputs. The Audio Group LEDs, located on the lower end of the module (opposite
the DIP switch) are used to indicate when the module is in volume level adjust mode and which output is
being adjusted. When one of the LED’s is flashing this indicates that you are adjusting the level of the
respective channel as shown in Table 5.

S7720AD-A4-LTC SDI Audio De-Embedder with VITC to LTC Translator
S7720AD-A4-LTC-8 Revision 1.0
Audio Group
LED
Color Audio Group Status
1Flashing Analog Output 1 level can be adjusted with toggle switch.
2Flashing Analog Output 2 level can be adjusted with toggle switch.
3Flashing Analog Output 3 level can be adjusted with toggle switch.
4Flashing Analog Output 4 level can be adjusted with toggle switch.
Table 5: Analog Audio Level Adjustment LEDs
To enter the volume control mode, press the pushbutton. The Output 1 Volume level adjust LED will start
flashing, indicating that the toggle switch can be used to adjust the volume level of analog output 1.
Pressing the toggle switch up will increase the volume level and pressing the toggle switch down will
decrease the volume level.
Continue adjusting the volume level of the other outputs by pressing the pushbutton to select the desired
output and then using the toggle switch to adjust the level. Press the pushbutton the fourth time will exit
volume adjust mode. None of the LEDs will be flashing. You can lock the volume levels by turning off DIP
switch 8. If you stop pressing either the pushbutton or toggle switch for more than 30 seconds, the
module will exit the volume adjust mode.
6. JUMPERS
MODULE STATUS
SIGNAL PRESENT
SFF POWER +12V
AUDIO Run
Upgrade
J16
J24
J22
FRAME
STATUS
ON
OFF
J8
GND
EVERTZ (C) 7700PB3
A7700AES4-2
Figure 3: Location of Jumpers and Status LEDS
6.1. FRAME STATUS JUMPER
FRAME STATUS The FRAME STATUS jumper J22 located at the front of the module determines
whether local faults (as shown by the Local Fault indicator) will be connected to the
7700FR frame's global status bus. As this module is mounted in the 7700
standalone enclosure this jumper has no effect in either position.

S7720AD-A4-LTC SDI Audio De-Embedder with VITC to LTC Translator
Revision 1.0 S7720AD-A4-LTC-9
6.2. UPGRADE JUMPER
UPGRADE The UPGRADE jumper J16 located at the front of the module is used when firmware
upgrades are being done to the module if it is mounted in the 7700FR frame. As
this module is mounted in the 7700 standalone enclosure this jumper has no effect
in either position. See section 7 of this manual for information on how to upgrade
modules that are in the stand alone enclosure.
7. UPGRADING FIRMWARE
The S7720AD-A4-LTC is fitted with a COM port connector that can be connected to a PC with a straight
through cable. You will need the following equipment in order to update the 7700PB Firmware
•PC with available communications port. The communication speed is 57600 baud, therefore a 486 PC
or better with a 16550 UART based communications port is recommended.
•“Straight-thru” serial extension cable (DB9 female to DB9 male) or (DB25 female to DB9 male)
•Terminal program that is capable of Xmodem file transfer protocol. (such as HyperTerminal)
•New firmware supplied by Evertz.
7.1. PART 1: CONFIGURING THE UNIT FOR FIRMWARE UPGRADES
1. Connect the 9 pin male connector on the straight through serial extension cable to the COM port on
the rear of the unit. Connect the 9 pin female connector to the PCs’ RS-232 communications port
7.2. PART 2: TERMINAL PROGRAM SETUP
2. Start the terminal program.
3. Configure the port settings of the terminal program as follows:
Baud 57600
Parity no
Data bits 8
Stop bits 2
Flow Control None
4. Apply power to the S7720AD-A4-LTC unit. After the unit powers up, a banner with the boot code
version information should appear in the terminal window. The cursor to the right of the word “BOOT>”
should be spinning for about 5 seconds then the unit will continue to boot.
For example:
EVERTZ MFC5407 MONITOR 2.1.3
COPYRIGHT 1997, 1998, 1999, 2000, 2001 EVERTZ MICROSYSTEMS LTD.
COLD BOOT |
5. The following is a list of possible reasons for failed communications:
•Defective 7700PB Serial Upgrade cable.
•Wrong communications port selected in the terminal program.
•Improper port settings in the terminal program. (Refer to step 7 for settings).

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1. While the cursor is spinning press the <CTRL> and <X> keys on your computer keyboard at the same
time, this should stop the cursor from spinning. The spinning prompt will only remain for about 5
seconds. You must press <CTRL-X> during this 5 second delay. If the unit continues to boot-up,
simply cycle the power and repeat this step.
2. Hit the <ENTER> key on your computer once.
3. Type the word “upgrade”, without quotes, and hit the <ENTER> key once.
4. The boot code will ask for confirmation. Type "y", without quotes.
5. You should now see a prompt asking you to upload the file.
7.3. PART 3: UPLOADING THE NEW FIRMWARE
11. Upload the “*.bin” file supplied using the X-Modem transfer protocol of your terminal program. If you
do not start the upload within 10 minutes the 7700PB Boot code will time out. You can restart the
upgrade process by removing and reinstalling the module.
12. The boot code will indicate whether the operation was successful upon completion of the upload.
For Example:
UPLOAD OKAY
MFC5407 WARM BOOT > |
13. The following is a list of possible reasons for a failed upload:
•If you get the message "transfer cancelled by remote" you must restart the terminal program and
load the bin file, then remove and install the module again.
•The supplied “*.bin” file is corrupt.
•Wrong file specified to be uploaded.
•The PCs’ RS-232 communications port can’t handle a port speed of 57600.
•Noise induced into the 7700PB Serial Upgrade cable.
7.4. PART 4: COMPLETING THE UPGRADE
14. Type the word “boot”, without quotes, and hit the <ENTER> key once or power cycle the unit. The unit
should now reboot.
15. You can now close the terminal program and disconnect the RS-232 serial cable from the PC.
The update procedure is now completed.