Features
■ For use with Analog Device’s AD20msp930
ADSL chipset (CO)
■ Excellent Total Harmonic Distortion (THD)
performance
■ SMT and small size package
■ Designed to meet UL1950 and EN60950
supplementary insulation requirements for
operating voltages up to 250 Vrms
■ Operating temperature -40 °C to +85 °C
■ RoHS compliant*
Applications
■ ADSL - Analog AD20msp930
SM537-1L ADSL Line Transformers
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications
Electrical Specifi cations @ 25 °C
Turns Ratio
(10-7):(1-4) ......................... 1:1.1 ±2 %
OCL @ 10 kHz, 0.1V
(1-4) with (2-3) shorted .. 2.03 mH min.
(10-7) with (8-9) shorted ...1.75 mH min.
Leakage Inductance @ 100 kHz 0.1 V
(10-7) with (2-3), (1-4), (8-9) shorted
........................................ 7.5 µH max.
Longitudinal Balance
10 kHz to 1.1 MHz ............ 50 dB min.
Insertion Loss @ 300 kHz .......... <0.5 dB
Isolation Voltage ...........1500 Vrms max.
Load Resistance ...........................100 W
DC Resistance
(1-4) with (2-3) shorted ....1.30 W max.
(10-7) with (8-9) shorted ..1.50 W max.
THD Linearity @ 30 kHz ........-80 dB typ.
Application ........................................CO
*RoHS COMPLIANT
How To Order
SM537-1E L
Model
Termination
L = Tin only (RoHS Compliant)
DIMENSIONS: MM
(INCHES)
Product Dimensions
Packaging Specifi cations
Tape & Reel* ...................... 200 pcs./reel
*”E” suffi x before “L” in part number
designates tape & reel packaging, e.g.
SM537-1EL.
Electrical Schematic
REV. 05/11
TOLERANCE ± 0.25
(.010)
10
8
9
7
1
Line Chip
1.1 : 1
3
2
4
SM537-1L
(DATECODE)
5
4
3
2
1
6
7
8
9
10
.711 ± .050
(.028 ± .002)
Recommended PAD layout
10 PLCS.
1.30 ± .050
(.051 ± .002)
10 PLCS.
13.46
(.530) MAX.
10.00
(.394)
10.00
(.394)
MAX.
17.65
(.695) MAX.
13.50
(.531) MAX.
12.32
(.485) MAX. 12.07
(.475) MAX.
2.50
(.098)
2.50
(.098)
15.37
(.605)
2.54
(.100)
0.13
(.005)
10 SURFACES
SM537-1L
OBSOLETE
