DA100 Series
www.murata-ps.com
Transformers for Digital Audio Data Transmission
SELECTION GUIDE
Max.
Isolation
Primary Leakage
(Flash tested
Inductance Inductance
Order Code
for 1 second)
(100kHz, 10mV)
mH H Vs dB dB Vrms
DA101C 1:1 1.00 - 2.06 0.26 15 46.80 52.10
FEATURES
DA102C 1:1 2.00 - 3.90 0.39 20 40.40 49.70 2000
n RoHS compliant
DA103C 1:1 4.00 - 7.75 0.91 28 36.30 46.40
n Compatible with leading chip sets
n 2kVrms isolation
ORDER CODE DETAILS
n Industry-standard pinout
Order Code Package Type Packaging Type Quantity
n Surface mount option
DAXXXC 6 Pin DIL Tube 50
n UL 94 V-0 package materials
DAXXXMC 6 Pin SM Tube 50
n Low profile
n Suitable for both 75 & 110 circuits
DAXXXMC-R 6 Pin SM Tape & Reel 500
n Toroidal construction
ABSOLUTE MAXIMUM RATINGS
n Compliant with AES/EBU standards
n Fully encapsulated Operating free air temperature range 0C to 70C
Storage temperature range 40C to 125C
DESCRIPTION
The Digital Audio Range of transformers is
All specifications typical at T =25C
A
designed to improve the balance of transmitter
TECHNICAL NOTES
and receiver circuitry in hi-fi equipment,
ISOLATION VOLTAGE REPEATED HIGH-VOLTAGE ISOLATION TESTING
video games and other applications requiring
Hi Pot Test, Flash Tested, Withstand Voltage, Proof Volt- It is well known that repeated high-voltage isolation
high-performance digital audio transmission.
age, Dielectric Withstand Voltage & Isolation Test Voltage testing of a barrier component can actually degrade
Compliant with AES/EBU recommendations for the
are all terms that relate to the same thing, a test voltage, isolation capability, to a lesser or greater degree
digital audio interface, offering optimised shunt
applied for a specified time, across a component designed depending on materials, construction and environ-
capacitance between primary and secondary
to provide electrical isolation, to verify the integrity of that ment. This series has toroidal isolation transformers,
windings. Capable of operating over the audio
isolation. with no additional insulation between primary and
data rate frequency range, providing isolation from
secondary windings of enameled wire. While parts
All products in this series are 100% production tested at
50-60Hz noise. can be expected to withstand several times the
their stated isolation voltage.
stated test voltage, the isolation capability does de-
A question commonly asked is, What is the continuous
pend on the wire insulation. Any material, including
voltage that can be applied across the part in normal opera-
Surface-mount parts
this enamel (typically polyurethane) is susceptible
tion?
to eventual chemical degradation when subject to
The surface-mount (M suffix) products are not
For a part holding no specific agency approvals both input
very high applied voltages thus implying that the
recommended for new designs. For existing designs,
and output should normally be maintained within SELV limits
number of tests should be strictly limited. We there-
however, Murata Power Solutions will continue to
i.e. less than 42.4V peak, or 60VDC. The isolation test volt-
fore strongly advise against repeated high voltage
manufacture and fully support these parts.
age represents a measure of immunity to transient voltages
isolation testing, but if it is absolutely required, that
and the part should never be used as an element of a safety
For recommended alternatives please refer to the the voltage be reduced by 20% from specified test
isolation system. The part could be expected to function cor-
voltage.
DA100J Series datasheet.
rectly with several hundred volts offset applied continuously
This consideration equally applies to agency recog-
across the isolation barrier; but then the circuitry on both
nized parts rated for better than functional isolation
sides of the barrier must be regarded as operating at an
where the wire enamel insulation is always supple-
unsafe voltage and further isolation/insulation systems must
mented by a further insulation system of physical
form a barrier between these circuits and any user-acces-
spacing or barriers.
sible circuitry according to safety standard requirements.
For full details go to
For full details go towww.cd4power.com/rohs
www.murata-ps.com/rohs
www.murata-ps.com/support
KMP_DA100C_C08 Page 1 of 3
Turns Ratio
Min. Volt-time
Product, Et
Min. Return Loss
(100kHz-3MHz)
Typ. Common
Mode Rejection
(100kHz, 110)DA100 Series
Transformers for Digital Audio Data Transmission
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
6 Pin DIL
6 Pin SM
0.50
(12.70)
0.375
0.375
(9.52) Max.
Top View Top View
(9.52) Max.
1
6
1 6
0.354
0.354
1 1
2 1 1 5
(9.0) Max.
(9.0) Max.
DA101C DA103MC
3 4
3 4
XYYWW XYYWW
0.25
0.25
(6.35)
(6.35)
0.1350.02
0.012 (0.30)
0.04 0.025 (0.63)
(3.440.50)
0.008 (0.20)
(0.90) 0.021 (0.53)
0.10
0.012 (0.30) 0.025 (0.63)
(2.54)
0.008 (0.20) 0.021 (0.53)
0.20
0.40
Unless otherwise stated all dimensions in inches (mm) 0.01 (0.25).
(5.08)
(10.16)
All pins on a 0.1 (2.54) pitch and within 0.01 (0.25) of true position.
Package Weight 0.93g Typ.
RECOMMENDED FOOTPRINT DETAILS
6 Pin DIL
6 Pin SM
0.10 (2.54) 0.10 (2.54)
0.06 (1.60) 0.06 (1.60)
0.10 (2.54) 0.10 (2.54)
0.10 (2.54) 0.10 (2.54)
+0.006 (0.15)+0.006 (0.15)
0.05 (1.20) 0.05 (1.20)
-0.000 (0.00)-0.000 (0.00)
0.04 0.04
(1.00) (1.00)
0.45 0.45
(11.50) (11.50)
Unless otherwise stated all dimensions in inches (mm)
0.01 (0.25). All pins on a 0.1 (2.54) pitch and within
0.01 (0.25) of true position.
1
TUBE OUTLINE DIMENSIONS
SOLDERING INFORMATION
0.43
Pin finish Matte tin
(10.95)
Peak wave solder temperature 300C for 10 seconds
Unless otherwise stated all
2 0.16 (4.00)
dimensions in inches (mm)
Peak reflow temperature 220C
0.01 (0.25).
1 For further information, please visit www.murata-ps.com/rohs
0.0230.005
0.51
Tube length: 18.30.08
2 For high temperature reflow parts see DA100J series datasheet.
(0.600.15)
(12.95)
(4652).
Tube material: Antistatic coated
0.22 (5.50)
clear pvc.
0.15
(3.80)
0.62 (15.70)
www.murata-ps.com/support
KMP_DA100C_C08 Page 2 of 3