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VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
E
41-1
PT5
Features
■
For use with Alcatel’s MTK-20140
■
■
■
■
■
Designed to meet UL1950 and EN60950
S
1
M540-
ADSL chipset
Excellent Total Harmonic Distortion
(THD) Performance
Both SMT and Thru-Hole package version
Small size
Operating temperature -40 °C to +85 °C
supplementary insulation requirements
for operating voltages up to 250 Vrms
■
Lead free version available (see How to
Order)
■
Lead free versions are RoHS compliant*
*R
Applications
■
ADSL - Alcatel MTK20140
SM540-1 & PT541-1 ADSL Line Transformers
Electrical Specifications @ 25
°C
Turns Ratio (1-4):(10-7) (line to chip)
SM540-1 ................................1:1 ±2 %
PT541-1 ................................2:1 ±2 %
OCL @ 10 kHz, 0.1 V
(1-4) with (2-3) shorted
SM540-1........................480 µH ±10 %
PT541-1 ........................410 µH ±10 %
Leakage Inductance @ 300 kHz 0.1 V
(1-4) with (2-3), (7-10), (8-9) shorted
SM540-1 ........................10.0 µH max.
PT541-1 ............................6.5 µH max.
Longitudinal Balance
30 kHz to 1.1 MHz ............-40 dB min.
Insertion Loss
@ 100 kHz and 1.1 MHz ..........<1.0 dB
Isolation Voltage ............1500 Vrms max.
DC Resistance
(1-4) with (2-3) shorted
SM540-1 ............................1.0
Ω
max.
PT541-1 ..............................0.6
Ω
max.
THD Linearity
SM540-1 @ 10 kHz (min.) ..-72 dB typ.
PT541-1 @ 20 kHz (min.) ....-72 dB typ.
Application
SM540-1........................................CPE
PT541-1 ..........................................CO
Packaging Specifications
SM540-1E* ..........................200 pcs./reel
PT541-1 ................................60 pcs./tray
*”E” suffix at end of part number
designates tape & reel packaging, e.g.
SM540-1E.
Electrical Schematic
1
3
2
4
10
8
9
7
0.6
(.024)
DIA.
10 PLCS.
2.6
MIN.
(.102)
2.50
(.098)
10.00
(.394)
14.2
MAX.
(.559)
12.70
MAX.
(.500)
Product Dimensions
SMT
15.37
(.605)
.711
±
.050
10 PLCS.
(.028
±
.002)
5
4
13.46
MAX.
(.530)
3
2
1
17.65
MAX.
(.695)
6
7
2.54
(.100)
2.50
(.098)
SM540-1
(DATECODE)
8
9
10
10.00
MAX.
2.50
(.394)
(.098)
10.00
(.394)
1.30
±
.050
10 PLCS.
(.051
±
.002)
Recommended PAD layout
13.50
MAX.
(.531)
12.32
MAX.
(.485)
12.07
MAX.
(.475)
0.13
(.005)
10 SURFACES
THT
PT541-1
(DATECODE)
How to Order
10.00
(.394)
14.0
MAX.
(.551)
SM540-1E or PT541-1 __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCE: ±
0.25
(.010)
03/05
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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