Data Video DAC-80 User manual

2 Channel Audio Isolation Transformer
DAC-80
Quick Start Guide
www.datavideo.com

2
Warranty
Standard Warranty
Datavideo equipment is guaranteed against any manufacturing defects for one
year from the date of purchase.
The original purchase invoice or other documentary evidence should be supplied
at the time of any request for repair under warranty.
Damage caused by accident, misuse, unauthorized repairs, sand, grit or water is
not covered by this warranty.
All mail or transportation costs including insurance are at the expense of the
owner.
All other claims of any nature are not covered.
Cables & batteries are not covered under warranty.
Warranty only valid within the country or region of purchase.
Your statutory rights are not affected.
Two Year Warranty
All Datavideo products purchased after 01-Oct.-2008 qualify for a free one year
extension to the standard Warranty, providing the product is registered with
Datavideo within 30 days of purchase. For information on how to register please
visit www.datavideo-tek.com or contact your local Datavideo office or authorized
Distributors
Certain parts with limited lifetime expectancy such as LCD Panels, DVD Drives,
Hard Drives are only covered for the first 10,000 hours, or 1 year (whichever
comes first).
Any second year warranty claims must be made to your local Datavideo office or
one of its authorized Distributors before the extended warranty expires.
Disposal
For EU Customers only - WEEE Marking
This symbol on the product indicates that it will not be treated as
household waste. It must be handed over to the applicable take
back scheme for the recycling of electrical and electronic
equipment. For more detailed information about the recycling of
this product, please contact your local Datavideo office.

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Overview
DAC-80 is designed to remove hum and buzz created by ground loops.
Normal voltage differences in the system grounding points between
different pieces of equipment cause small AC power currents to flow in
the shield of audio cables. Capacitance between a power transformer’s
primary and secondary windings introduce signals to the circuit ground
which will also create small current flows in the cable shield. Either of
these problems will create hum in audio signals. DAC-80 breaks the inter-
equipment ground path and greatly increases the rejection in the input
circuits while remaining transparent to the audio signal.
Features
Easy to use
Eliminate audio noise caused by ground loops
Designed for low signal loss and low distortion
Passive device (No power required)

Packing List
The following items should be included in the box. If any items are
missing please contact your supplier.
1 x DAC-80
1 x Quick Start Guide

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Front Panel
CH1 / CH2 Audio Input
XLR Balanced Audio input (Channel 1 / 2)
LIFT Toggle Switch
These switches turn to UP position, audio
ground not connected. Breaks ground loops,
provides audio isolation.
These switches turn to DOWN position, for
chassis shield and audio ground connected.
Corrects balance on audio lines.
(Left switch =CH2, Right switch = CH1)

5
Rear Panel
CH1 /CH2 Audio Output
XLR Balanced Audio output (Channel 1/ 2).
Dac-80 Electronic Circuit Diagram

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System Diagram

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Specifications
Impedance 600Ω+/- 10%(Input & output)
Bandwidth Frequency 20Hz ~20KHz ±0.5dB
THD: 1KHz < 0.015% @ +4dBu; 20Hz: 0.05% @+4dBu
Insertion loss <0.5dB
Turns Ration 1:1
Input 2Ch XLR Audio Input
Output 2Ch XLR Audio Output
Dimensions 85mm x 45.2mm x 111.5mm (W x H x D)

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Service & Support
It is our goal to make owning and using Datavideo products a satisfying
experience. Our support staff is available to assist you to set up and
operate your system. Contact your local office for specific support
requests. Plus, please visit www.datavideo.com to access our FAQ
section.
USA: Datavideo Corporation
Tel: [phone] Fax: [phone] E-Mail: [e-mail]
The Netherland: Datavideo Technologies Europe BV
Tel: [phone] Fax: [phone] E-Mail: [e-mail]
United Kingdom: Datavideo UK Limited
Tel: [phone] Fax: [phone] E-Mail: [e-mail]
Taiwan: Datavideo Technologies Co., Ltd
Tel: [phone] Fax: [phone] E-mail: [e-mail]
China: Datavideo Technologies China Co., Ltd
Tel: [phone] Fax:[phone] E-mail: [e-mail]
Singapore: Datavideo Technologies (S) PTE LTD
Tel: [phone] Fax: [phone] E-mail: [e-mail]
Hong Kong: Datavideo HK Limited
Tel: [phone] Fax: [phone] E-mail: [e-mail]
France: Datavideo France
Tel: [phone] Fax: [phone] E-Mail: [e-mail]
India: Datavideo India
Tel: [phone] Fax: [phone] E-Mail: [e-mail]
All the trademarks are the properties of their respective owners.
Datavideo Technologies Co., Ltd. All rights reserved 2018
Mar-31.2014 P/N: G082060725B1