March 7, 2007

DATATRONIC

:

28151 Highway 74, Romoland, CA 92858 Tel: 951-928-7700 Toll Free 888-889-5391 Fax: 951-928-7701

Email: ddisales@datatronics.com

499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 8477 Fax: (852) 2565 7214, (852) 2563 1290

All specifications are subject to change without notice.

NOTES:

1.

Dimensions are shown in inches/millimeters

Unless otherwise specified, tolerance = Inches: ±0.010

= Millimeters: ±0,25

2.

For non-RoHS parts replace SM prefix with 42- (e.g. SM538-1 becomes 42-538-1)

3.

Terminal finish is compliant to RoHS requirements. Solder in accordance with

J-STD-020C.

SM538-1 and PT539-1 ADSL Line Transformers

Features

For use with Analog Devices AD20msp910 / AD20msp918 ADSL

Chipsets

Excellent Total Harmonic Distortion (THD) performance in a small size

Both SMT and Thru-Hole package version

Designed to meet UL1950 and EN60950 supplementary insulation

requirements for voltages up to 250Vrms maximum

ELECTRICAL SPECIFICATIONS AT 25

°C OPERATING TEMP -40°C TO 85°C

SM538-1

PT539-1

TURNS RATIO

1 : 1

±2%

1 : 1

±2%

OCL @10kHz, 0.1V

(1-4) WITH (2-3) SHORTED

5.0mH

±10%

5.0mH

±10%

(10-7) WITH (8-9) SHORTED

5.0mH

±10%

5.0mH

±10%

LEAKAGE INDUCTANCE @100kHz 0.1V

(1-4) WITH (2-3), (8-9), (10-7) SHORTED

18.0

µH MAX

18.0

µH MAX

LONGITUDINAL BALANCE 25kHz – 1.1MHz

40dB MIN

40dB MIN

INSERTION LOSS @100kHz

<0.5dB

<0.5dB

ISOLATION VOLTAGE (MAX)

1500 Vrms

1500 Vrms

LOAD RESISTANCE

100

Ω

100

Ω

DC RESISTANCE (1-4), (10-7)

3

Ω MAX

3

Ω MAX

THD LINEARITY @300kHz

-60dB TYP

-

@30kHz

-

OUTLINE DIMENSIONS

SCHEMATIC

THT

SMT