Product Manual
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1. 14 Figure 6 9 Setting the Output Gain 7 15 Tables Table 6 1 Amplifier Gain Levels 2 13 Table 6 2 Amplifier Gain Levels PCB Rev B and PCB Rev 14 Revision 1 6 everiz 7700 MultiFrame Manual 9 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 2 1x4 REVISION HISTORY REVISION DESCRIPTION DATE 1 0 Preliminary Version Apr 2002 1 1 Specifications and jumper setting info updated May 2002 1 2 Updated Jumper location drawings for Rev A boards Aug 2003 1 3 Updated User Manual for PCB Rev B boards Nov 2006 1 4 Updated all drawings Jan 2007 Added Block Diagram Rev A Updated Amplifier Gain Levels 1 5 General format clean Sept 2009 1 6 Updated diagram in Installation section Dec 2012 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 affected 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 expressed 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 every2. EH ANALOG AUDIO OUT 1 2 Figure 2 1 7700ADA AUD Rear Panel The balanced 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 terminal strips on the rear panel ANALOG AUDIO IN Balanced analog audio inputs for 2 channels Each input GND is on a 3 pin removable terminal strip connector Page 4 Revision 1 6 ever Iz 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 For unbalanced audio connections the signal wire should be connected to ES the positive input and the shield GND should be connected to the negative input Bs ANALOG AUDIO OUT There are four balanced analog audio outputs for each of the 2 input channels Each output GND is on a 3 pin removable terminal strip connector To connect an unbalanced cable to one of the balanced outputs of this card the positive output should connect to the signal wire and the shield of the cable should connect to the ground terminal The negative output should be left ES unconnected This method has some drawbacks such as half the amplitude 6dB less than a balanced connection and may pick up common mode noise with long cable lengths
3. Revision 1 6 Page 5 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 3 SPECIFICATIONS 3 1 ANALOG AUDIO INPUT Standards Number of Inputs Connectors Input Step Gain Fine Gain Control Maximum Input Level 0 dB Input Gain 6 dB Input Gain Noise Floor Common Mode Rejection Common Mode Range 0 dB Input Gain 6 dB Input Gain Input Impedance 0 dB Input Gain 6 dB Input Gain Any analog audio signal 2 Balanced or Single ended 3 pin removable terminal strips 0 dB or 6 5 dB configurable with jumpers on PCB Rev 2 0 dB to 6 GB configurable with jumpers on PCB Rev A and PCB Rev 6 5 dB to 9 5 dB card edge pot adjustable on PCB Rev 2 5 dB to 5 dB card edge pot adjustable on PCB Rev A and PCB Rev B 34 dBu 28 dBu 87 dBu 0 dB input gain 91 dBu 6 dB input gain jumper setup gt 100 dB 70 Hz 65 dB 20 kHz tested with 24 dBu CM input gt 22 V gt 7 33 15 3 2 ANALOG AUDIO OUTPUTS Number of Outputs Stereo Mode Mono Mode Connectors Output Step Gain Maximum Output Level Output Impedance Frequency Response Stereo Phase Mismatch SNR THD Noise Intermodulation Distortion Stereo Crosstalk Output Isolation Page 6 4 Outputs each on left and right channels 8 Outputs 3 pin removable terminal strips 0 3 5 or 9 5 dB configurable with jumpers 24 dBu acro
4. configuration jumper settings The dual shorting jumper provided can be placed in one of three locations to select different output gain levels When placing the jumper make sure that the brass contacts of the jumper are oriented as shown in Figure 6 9 OUTPUT GAIN OUTPUT GAIN OUTPUT GAIN F 3 5 dB 26 3548 4 3 5 dB 9 9 o 5p 9 9 o5dB 9 5 dB 3 5 dB Setting 0 dB Setting 9 5 dB Setting Figure 6 9 Setting the Output Gain Level 6 3 3 Fine Tuning the Gain Level There are two trim potentiometers located at the front edge of the card that are used to fine tune the input gain levels for channel 1 and 2 On 7700ADA AUD PCB Rev 2 and PCB Rev A modules the gain increases when the pot is turned counter clockwise On 7700ADA AUD PCB Rev B or later modules the gain increases when the pot is turned clockwise Revision 1 6 Page 15 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 ever 4 This page left intentionally blank Page 16 Revision 1 6
5. 6 7700 MultiFrame Manual 2 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 2 1x4 ever 2 Figures Figure 1 1 7700ADA AUD Block Diagram 2 1 Figure 1 2 7700ADA AUD Block Diagram Rev 2 Figure 1 3 7700ADA AUD Block Diagram Rev B 3 Figure 2 1 7700ADA AUD Rear 2 4224 00 nnn nt entrant nennt rst nnne tren nnne nnne 4 Figure 4 1 LED Status tpe e Eee dadas IER De a e aa EE d 8 Figure 5 1 Gard Edge Controls pud p E RD ze Hep ERE dv dg vided du Ede e LER sed ede pda 9 Figure 6 1 Location of Jumpers Rev 2 sssssssssssssssess sees 10 Figure 6 2 Location of Jumpers Rev 10 Figure 6 3 Location of Jumpers Rev B sese entere nnne entente nennen ns 11 Figure 6 4 Setting the Amplifier Output Configuration 2 12 Figure 6 5 Setting the Amplifier Output Configuration 12 Figure 6 6 Setting the Amplifier Output Configuration Rev B 13 Figure 6 7 Setting the Input Gain Level on Rev 2 enne nennen nnne ens 14 Figure 6 8 Setting the Input Gain Level on PCB Rev and Rev
6. 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 Revision 1 6 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 or 2 1x4 ever Zz This page left intentionally blank Revision 1 6 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 or 2 1 4 ever gt 7700 MultiFrame Manual 1 OVERVIEW The 7700ADA AUD Dual Analog Audio distribution amplifier is a general purpose amplifier for distributing analog audio signals It can be operated as two independent 4 output amplifiers for stereo signals or as a single amplifier with 8 outputs where higher fanout is required The 7700ADA AUD can be operated with either differential or single ended inputs and offers a wide range of gain adjustment to handle a wide variety of input signals The 7700ADA AUD occupies one card slot and can be housed in either a 1RU frame which will hold up to three modules or a 3 RU frame wh
7. 0 Revision 1 6 ever gt 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 or 2 1 4 everiz B 7700ADA AUD LOCAL FAULT MODULE OK CH 1 OUTPUT GAIN GAIN 3 5dB GAIN 0dB GAIN 9 5dB J27 J29 FINE INPUT GAIN CHANNEL 1 1 6 dB Gain 0dB Gain FINE INPUT GAIN CHANNEL 2 CH 2 OUTPUT GAIN J28 J30 1GAIN 9 5dB 1 GAIN 0dB 8 SIs GAIN 3 5dB le uu 99 uz o 6 dB Gain 0 dB Gain ee SFF POWER Figure 6 3 Location of Jumpers PCB Rev B 6 1 SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED BY THE GLOBAL FRAME STATUS The FRAME STATUS jumper J1 determines whether local faults as shown by the Local Fault indicator will be connected to the 7700FR frame s global status bus FRAME STATUS To monitor faults on this module with the frame status indicators on the Power Supply FRAME STATUS LED s and on the Frame s Fault Tally output install this jumper in the ON position Default When this jumper is installed in the OFF position local faults on this module will not be monitored 6 2 SETTING THE AMPLIFIER CONFIGURATION The 7700ADA AUD can be operated as a single input monaural distribution amplifier with 8 outputs or as a dual input stereo amplifier with four outputs per input On Rev 2 modules there are three jumpers that set the
8. ain on Rev A modules older than November 2002 will be 6dB and the Lx fine gain adjustment range will be 6 5dB to 9 5dB Page 2 Revision 1 6 ever gt 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 Cable Drivers 1 Balanced hs 1 Receiver d Stage 4 d Stage 1 1 Input Gain vvv Output Gain 0 dB Fine Gain 0 dB 6 dB 5 dB to 5 dB 3 5 dB 9 5 dB Balanced Balanced Analog Audio Analog Audio Inputs Output Gain 5 Outputs TEL 0 dB Input Gain CJ Fine Gain 43 5 dB 0 dB 46 dB 5 dB to 5 dB 1 2 Balanced i i 3rd Gain 2 2 Receiver Stereo 1 2 10 2 9 Jumper selection Figure 1 3 7700ADA AUD Block Diagram Rev B When using the 7700ADA AUD module for a mono 1x8 configuration the 3rd Gain Stage for channel 2 on PCB Revisions 2 and A is configured separately for the LS lower four outputs On PCB Rev the 3rd Gain Stage for channel 1 will adjust the gain for all 8 outputs Revision 1 6 Page 3 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 ever Zz 2 INSTALLATION The 7700ADA AUD comes with a companion rear plate that has ten 3 pin removable terminal strips For information on mounting the rear plate and inserting the module into the frame see section 3 of the 7700FR manual 7700ADA AUD ANALOG AUDIO IN Ts 2
9. configuration of the amplifier The dual shorting jumpers provided must be placed on two of the three headers to properly configure the outputs When placing the jumper make sure that the brass contacts of the jumpers are oriented as shown in Figure 6 4 Revision 1 6 Page 11 7700 MultiFrame Manual 1 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 or 2 1 4 ever 4 CHL CHRR CHL CHRR OUTPUTS OUTPUTS H 70 42 OUTPUTS OUTPUTS CHL CHR CHR 60 CHL CHR CHR card extractor board corner Stereo Monaural d Configuration Configuration Figure 6 4 Setting the Amplifier Output Configuration Rev 2 On Rev A modules there are two jumpers that set the configuration of the amplifier The dual shorting jumpers provided must be placed on one of the two headers to properly configure the outputs When placing the jumper make sure that the brass contacts of the jumper are oriented as shown in Figure 6 5 STEREO STEREO Stereo Monaural Configuration Configuration card extractor board corner gre Figure 6 5 Setting the Amplifier Output Configuration Rev A Page 12 Revision 1 6 ever gt 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 On Rev B modules there is one jumper that sets the configuration of the amplifier The dual shorting jumpers provided must be placed on one of the tw
10. ich will hold up to 15 modules Features Differential and single ended input automatic single ended to differential conversion Configurable for stereo 2 1x4 or mono 1x8 High impedance inputs Low impedance outputs Wide gain adjustment range High common mode range and common mode rejection ratio Very high SNR Very low THD N Fully balanced signal path from input to output Cable Drivers 1 1 Balanced 3rd Gai Receiver r m d d age 1 1 Output Gain Fine Gain 0 dB 6 5 dB to 9 5 dB 43 5 dB 9 5 dB Balanced Balanced Analog Audio Analog Audio Inputs Output Gain 07 Outputs 0 dB Fine Gain 3 5 dB 6 5 dB to 9 5 dB 9 5 dB Gable Drivers W 1or2 10r2 Balanced i i dB 1 sen o Stereo 1or2 1 2 Jumper selection Figure 1 1 7700ADA AUD Block Diagram Rev 2 Revision 1 6 Page 1 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 ever 4 Cable Drivers gt 1 gt Ist 1 ELE gt q Stage d Stage 1 1 Input Gain Output Gain 0 dB Fine Gain 0 dB 6 dB 5 dB to 5 dB 3 5 dB 9 5 dB Balanced Balanced Analog Audio Analog Audio Inputs Ouiput Gan Outputs 0 dB Input Gain 226 0 dB rer 3 5 dB Cable Drivers 6 dB PR 10 2 i 1 or 2 Receiver 10r2 10r2 9 Jumper selection Figure 1 2 7700ADA AUD Block Diagram Rev A The input g
11. o headers to properly configure the outputs When placing the jumper make sure that the brass contacts of the jumper are oriented as shown in Figure 6 6 Stereo Monaural Configuration Configuration card extractor board corner go Figure 6 6 Setting the Amplifier Output Configuration Rev 6 3 SETTING THE AMPLIFIER GAIN The overall gain of the 7700ADA AUD is set in three stages e input gain control 2 levels of gain e linear fine adjust gain control e output gain control 3 levels of gain Depending on the setup of the input and output gain jumpers the overall gain can be trimmed with the linear fine adjust gain control within the following ranges INPUT GAIN OUTPUT GAIN OVERALL GAIN RANGE JUMPER JUMPER AVAILABLE WITH SETTING SETTING THE CARD EDGE TRIM POT 6 5 dB to 9 5 dB 3 dB to 13 dB 0 dB to 16 dB 3 dB to 19 dB 43 5 dB to 419 5 dB 49 5 dB to 425 5 dB Table 6 1 Amplifier Gain Levels on PCB Rev 2 Revision 1 6 Page 13 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 ever Zz INPUT GAIN OUTPUT GAIN OVERALL GAIN RANGE JUMPER JUMPER AVAILABLE WITH SETTING SETTING THE CARD EDGE TRIM POT 0 dB 0 dB 5 dB to 5 dB 0 dB 3 5 dB 1 5 dB to 8 5 dB 6 dB 0 dB 1 dB to 11 dB 49 5 dB 44 5 dB to 14 5 dB 43 5 dB 44 5 dB to 414 5 dB 49 5 dB 410 5 dB to 20 5 dB Table 6 2 Amplifier Gain Levels on PCB Re
12. on Amplifier 1 8 or 2 1 4 5 CARD EDGE CONTROLS Two trim potentiometers located on the card edge are used to set the gain for each of the channels Please see section 6 3 for information on how to calibrate the amplifier gain Fine Input Fine Input Gain Channel 1 Gain Channel 2 7700ADA AUD Figure 5 1 Card Edge Controls Revision 1 6 Page 9 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 6 JUMPERS LOCAL FAULT MODULE OK CHANNEL 1 OUTPUT GAIN 9 43 5 dB 0 dB 99 05 dp 0 dB GAIN CHL CHL CHR GAIN CHANNEL 1 6 5 dB GAIN F CH 1 OUTPUTS 9 0 ee GAIN CHANNEL 2 Ji INPUT GAIN ON 9 OFF FRAME STATUS e 7 c S 9 5 dB 0 dB 9 9 35dB CHANNEL 2 OUTPUT GAIN CH2 OUTPUTS 9 eo CHR CHL CHR 6 5 dB GAIN 0 dB GAIN SFF POWER EVERTZ 2 7700ADA AUD Figure 6 1 Location of Jumpers PCB Rev 2 EVERTZ A 7700ADA AUD LOCAL FAULT MODULE OK GAIN CHANNEL 1 GAIN CHANNEL 2 CHANNEL 1 OUTPUT GAIN es 3508 6201 99 9545 6 5 dB GAIN 0 dB GAIN J1 INPUT GAIN OFF FRAME STATUS 9 5 dB 2 STEREO 9 0 dB 3 5 dB CHANNEL 2 OUTPUT GAIN ee 0 dB GAIN 59 6 5 dB GAIN SFF POWER Figure 6 2 Location of Jumpers PCB Rev Page 1
13. ss hi impedance load 20 dBm into 600 ohm load 660 0 03 dB 20 Hz to 20 kHz lt 1 20 kHz 115 dB 0 00196 20 Hz to 20 kHz 28 dBu unweighted RMS hi Z loads 0 00196 SMPTE 18 dBu gt 115 dB 1 kHz gt 100 dB 20 kHz all outputs have independent drivers Revision 1 6 ever gt 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 3 3 ELECTRICAL Voltage 12VDC Power 12 Watts EMI RFI Complies with FCC Part 15 Class A EU EMC Directive 3 4 PHYSICAL 7700 or 7701 Frame Mounting Number of Slots 1 Revision 1 6 Page 7 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1x8 or 2 1x4 ever 4 4 STATUS INDICATOR LEDS The 7700ADA AUD modules have 2 status LED indicators on the card edge of the circuit board to show operational status of the card at a glance refer to Figure 4 1 LOCAL FAULT 7700ADA AUD MODULE OK Figure 4 1 LED Status Indicators Two large LEDs on the front of the board indicate the general health of the module LOCAL FAULT This Red LED indicates poor module health and will be ON if a local input power fault exists i e a blown fuse The LOCAL FAULT indication can also be reported to the frame through the FRAME STATUS jumper MODULE OK This Green LED indicates good module health Page 8 Revision 1 6 ever gt 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distributi
14. v B and PCB Rev A The following sections describe how to set each of the gain stages 6 3 1 Setting the Input Gain Level There is one set of jumpers that set the gain for each of the input channels When the amplifier is configured as a monaural amplifier refer to section 6 2 the jumpers for channel 1 set the input gain Each set of jumpers consist of one 6 pin header The dual shorting jumper provided can be placed in one of the two locations to select different input gain levels When placing the jumper make sure that the brass contacts of the jumper are oriented as shown in Figure 6 7 and Figure 6 8 0 dB 6 5 dB input gain input gain card extractor Kk E board corner Figure 6 7 Setting the Input Gain Level on PCB Rev 2 0 dB 6 dB input gain input gain card extractor CH board corner Figure 6 8 Setting the Input Gain Level PCB Rev and Rev On PCB Revision A cards newer than November 2002 the text around the input gain LS jumpers reads 6 5dB but the actual adjustment is 6 0dB Page 14 Revision 1 6 ever gt 7700 MultiFrame Manual 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 or 2 1 4 6 3 2 Setting the Output Gain Level There are two 8 pin headers that are used to set the output gain levels for the four channel 1 and 2 outputs Each jumper sets the output levels for the respective four outputs regardless of the amplifier
15. werlz 7700 MultiFrame Manual ever 2 7700ADA AUD Balanced Analog Audio Distribution Amplifier 1 8 2 1x4 TABLE OF CONTENTS M 1 NSTALLATI O N sto eee eo hatt hae oe ced ue 4 5 5 ah eek ete eed eet aetna ein eed ihe 6 3 1 ANAEOG AUDIO INPUT cere etr Ee ire iir ete fele ue serm 6 3 2 ANALOG AUDIO OUTPUTS metiri eame dedico di eee 6 3 3 ELECTRICAL ec B 7 LT dnbio be cers cate M A 7 STATUS INDICATOR LEDS 3 o ee 8 CARD EDGE CONTROLS ec C H 9 JUMPEHRBS gent ca feel edie EAT 10 6 1 SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED BY THE GLOBAL dea chee Cages LE 11 6 2 SETTING THE AMPLIFIER CONFIGURATION 11 6 3 SETTING THE AMPLIFIER GAIN 225222 et tee cerne En e i ee 13 6 3 1 Setting the Input Gain Level edet to petet prets tole estet 14 6 3 2 Setting the Output Gain Level toro Petes 15 6 3 3 Fine Tuning the Gain Level 5 2 rient teer nen eee e ote Ea d nt 15 Revision 1
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