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DA103MC Datasheet(PDF) 1 Page - Murata Manufacturing Co., Ltd. |
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DA103MC Datasheet(HTML) 1 Page - Murata Manufacturing Co., Ltd. |
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1 / 3 page  DA100 Series Transformers for Digital Audio Data Transmission KMP_DA100C_C07 Page 1 of 3 www.murata-ps.com www.murata-ps.com/support For full details go to www.cd4power.com/rohs For full details go to www.murata-ps.com/rohs FEATURES n RoHS compliant n Compatible with leading chip sets n 2kVrms isolation n Industry-standard pinout n Surface mount option n UL 94 V-0 package materials n Low profile n Suitable for both 75 & 110Ω circuits n Toroidal construction n Compliant with AES/EBU standards n Fully encapsulated DESCRIPTION The Digital Audio Range of transformers is designed to improve the balance of transmitter and receiver circuitry in hi-fi equipment, video games and other applications requiring high-performance digital audio transmission. Compliant with AES/EBU recommendations for the digital audio interface, offering optimised shunt capacitance between primary and secondary windings. Capable of operating over the audio data rate frequency range, providing isolation from 50-60Hz noise. Surface-mount parts The surface-mount (M suffix) products are not recommended for new designs. For existing designs, however, Murata Power Solutions will continue to manufacture and fully support these parts. For recommended alternatives please refer to the DA100J Series datasheet. SELECTION GUIDE Order Code Primary Inductance Max. Leakage Inductance (100kHz, 10mV) Isolation (Flash tested for 1 second) mH μH Vμs dB dB Vrms DA101C 1:1 1.00 - 2.06 0.22 15 46.80 52.10 2000 DA102C 1:1 2.00 - 3.90 0.39 20 40.40 49.70 DA103C 1:1 4.00 - 7.75 0.91 28 36.30 46.40 ORDER CODE DETAILS Order Code Package Type Packaging Type Quantity DAXXXC 6 Pin DIL Tube 50 DAXXXMC 6 Pin SM Tube 50 DAXXXMC-R 6 Pin SM Tape & Reel 500 ABSOLUTE MAXIMUM RATINGS Operating free air temperature range 0°C to 70°C Storage temperature range –40°C to 125°C All specifications typical at T A =25°C TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Volt- age’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. All products in this series are 100% production tested at their stated isolation voltage. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal opera- tion?” For a part holding no specific agency approvals both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test volt- age represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function cor- rectly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-acces- sible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environ- ment. This series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does de- pend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We there- fore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. This consideration equally applies to agency recog- nized parts rated for better than functional isolation where the wire enamel insulation is always supple- mented by a further insulation system of physical spacing or barriers. |
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