Signal Processing Systems : Distribution Amplifiers : Evertz - 7700ADA-AUD

Balanced Analog Audio Distribution Amplifier (Configurable 1 x 8 or 2-1 x 4)

Model: 7700ADA-AUD

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

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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.

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 (CMRR)
Very high SNR
Very low THD+N
Module status / Local Fault

Spec Sheet available - Yes

Analog Audio Input - Standard: Any analog audio signal
Analog Audio - Number of Inputs: 2 (Balanced or Single ended)
Analog Audio Input - Connector: 3 pin removable terminal strips
Analog Audio Input - Step Gain: 0dB or +6.5dB (configurable with jumpers)
Analog Audio Input - Fine Gain Control: -6.5dB to +9.5dB (card edge pot adjustable)
Maximum Input Level (0dB gain): +34dBu
Maximum Input Level (+6.5dB gain): +28dBu
Noise Floor (0dB gain): -87dBu
Noise Floor (+6.5dB gain): -91dBu (jumper setup)
Common Mode Rejection: > 115dB @ 60Hz, 90dB @ 20kHz (tested with +28dBu CM input)
Common Mode Range (0dB gain): > ±22V
Common Mode Range (+6.5dB gain): > ±7V
Analog Audio Input - Impedance (0dB gain): 33k Ohms
Analog Audio Input - Impedance (+6.5dB gain): 15k Ohms
Analog Audio - Number of Outputs (Stereo Mode): 4 outputs each on left and right channels
Analog Audio - Number of Outputs (Mono Mode): 8 outputs
Analog Audio output - Connector: 3 pin removable terminal strips
Analog Audio Output - Step Gain: 0dB, 3.5dB or 9.5dB (configurable with jumpers)
Maximum Output Level (Across Hi-Z Load): +28dBu
Maximum Output Level (Into 600 Ohms Load): +24dBu
Analog Audio Output - Impedance: 66 Ohms
Analog Audio Output - Frequency response: ±0.02dB, 20Hz to 20kHz
Analog Audio Output - Stereo Phase Mismatch: < 1° @ 20kHz
SNR (0dB gain): 115dB
SNR (+6.5dB gain): 119dB
THD+ Noise (Across Hi-Z Load): 0.001%, 20Hz to 20kHz @ 28dBu, unweighted RMS
THD+ Noise (Into 600 Ohms Load): 0.01% up to 24dBm
Intermodulation Distortion: 0.001% - SMPTE @ 18dBu
Stereo Crosstalk: > 115dB @ 1kHz, > 93dB @ 20kHz
Isolation: > 110dB @ 1kHz, 100dB @ 20kHz
Voltage: +12V DC
Power: 12 Watts
EMI/RFI: Complies with FCC Part 15 Class A, EU EMC Directive
Number of Slots: 1

Dual Analog Audio Distribution Amplifier 49 kb - Data Sheet

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