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1.
OVERVIEW ..........................................................................................................................................1
2.
INSTALLATION ...................................................................................................................................4
3.
SPECIFICATIONS ...............................................................................................................................6
3.1. ANALOG AUDIO INPUT.............................................................................................................6
3.2. ANALOG AUDIO OUTPUTS ......................................................................................................6
3.3. ELECTRICAL ..............................................................................................................................7
3.4. PHYSICAL...................................................................................................................................7
4.
STATUS INDICATOR LEDS................................................................................................................8
5.
CARD EDGE CONTROLS...................................................................................................................9
6.
JUMPERS ..........................................................................................................................................10
BY THE GLOBAL FRAME STATUS ........................................................................................11
6.2. SETTING THE AMPLIFIER CONFIGURATION .......................................................................11
6.3. SETTING THE AMPLIFIER GAIN.............................................................................................13
6.3.1. Setting the Input Gain Level...........................................................................................14
6.3.2. Setting the Output Gain Level........................................................................................15
6.3.3. Fine-Tuning the Gain Level............................................................................................15
7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4)
TABLE OF CONTENTS
Revision 1.5
7700 MultiFrame Manual
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Summary of Contents for evertz 7700
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Page 1: Table Of Contents
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) TABLE OF CONTENTS OVERVIEW ............................1 INSTALLATION ...........................4 SPECIFICATIONS ..........................6 3.1. ANALOG AUDIO INPUT......................6 3.2. ANALOG AUDIO OUTPUTS ......................6 3.3. ELECTRICAL ..........................7 3.4. PHYSICAL...........................7 STATUS INDICATOR LEDS........................8 CARD EDGE CONTROLS........................9 JUMPERS ............................10... - Page 2 7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) Figures Figure 1-1: 7700ADA-AUD Block Diagram Rev 2 ....................1 Figure 1-2: 7700ADA-AUD Block Diagram Rev A....................2 Figure 1-3: 7700ADA-AUD Block Diagram Rev B....................3 Figure 2-1: 7700ADA-AUD Rear Panel .........................4 Figure 4-1: LED Status Indicators .........................8...
- Page 3 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.
- Page 4 7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) This page left intentionally blank Revision 1.5...
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Page 5: Overview
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) 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. -
Page 6: Figure 1-2: 7700Ada-Aud Block Diagram Rev A
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) Cable Drivers Balanced Gain Gain 3rd Gain Receiver Stage Stage Stage Input Gain (*): Output Gain (*): Fine Gain: 0 dB 0 dB -5 dB to +5 dB +6 dB +3.5 dB... -
Page 7: Figure 1-3: 7700Ada-Aud Block Diagram Rev B
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) Cable Drivers Balanced Gain Gain 3rd Gain Receiver Stage Stage Stage Input Gain (*): Output Gain (*): Fine Gain: 0 dB 0 dB -5 dB to +5 dB +6 dB +3.5 dB... -
Page 8: Installation
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) 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. - Page 9 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 the positive (+) input and the shield (GND) should be connected to the negative (-) input. ANALOG AUDIO OUT: There are four balanced analog audio outputs for each of the 2 input channels.
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Page 10: Specifications
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) SPECIFICATIONS 3.1. ANALOG AUDIO INPUT Standards: Any analog audio signal Number of Inputs: 2 (Balanced or Single ended) Connectors: 3 pin removable terminal strips Input Step Gain: 0 dB or +6.5 dB (configurable with jumpers) on PCB Rev 2... -
Page 11: Electrical
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: Page - 7 Revision 1.5... -
Page 12: Status Indicator Leds
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) 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). -
Page 13: Card Edge Controls
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) CARD EDGE CONTROLS Two trim potentiometers located on the card edge are used to set the gain for each of the channels. See section 6.3 for a description of how to calibrate the amplifier gain. -
Page 14: Jumpers
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) JUMPERS LOCAL FAULT / MODULE OK CHANNEL 1 OUTPUT GAIN +3.5 dB GAIN CHANNEL 1 0 dB CH 1 +9.5 dB GAIN CHANNEL 2 INPUT GAIN 8 OUTPUTS... -
Page 15: Selecting Whether Local Faults Will Be Monitored By The Global Frame Status
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) (B)7700ADA-AUD LOCAL FAULT/MODULE OK CH 1 INPUT CH 1 OUTPUT GAIN FINE INPUT GAIN GAIN CHANNEL 1 GAIN=+3.5dB GAIN=0dB GAIN=+9.5dB FINE INPUT GAIN CHANNEL 2 J27/J29 CH 2 OUTPUT GAIN... -
Page 16: Figure 6-4: Setting The Amplifier Output Configuration - Rev 2
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) 8 OUTPUTS 8 OUTPUTS card extractor board corner Stereo Monaural 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. -
Page 17: Setting The Amplifier Gain
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 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 6-6. -
Page 18: 6.3.1. Setting The Input Gain Level
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) 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... -
Page 19: 6.3.2. Setting The Output Gain Level
7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) 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. - Page 20 7700 MultiFrame Manual 7700ADA-AUD Balanced Analog Audio Distribution Amplifier (1x8 or 2-1x4) This page left intentionally blank Page - 16 Revision 1.5...
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