datasheet for LTM

datasheet for LTM
LTM-110A Line Interface 56kbps Modem Transformer
Features
• designed for V.90 applications (56kbps)
• very low distortion
• wide frequency range with flat response
• meets IEC 60950 Supplementry Insulation levels, 1500V min.
• excellent quality at competitive price due to high volume
production
• manufactured in ISO-9001:2000 approved Talema facility
Electrical Specifications @ 25°C • Operating Temperature -40° to +85°C
Parameter
Conditions
Frequency Response
200 - 4000Hz
Insertion Loss
2000Hz, RL600 Ohms
Typical
Limit
Units
±0.5
-
dB
1.0
1.5 max
dB
Return Loss
200 - 4000Hz
22
18 min
dB
THD
150Hz, -3dBm
-70
-
dB
THD
200Hz, -10dBm
-85
-
dB
DC Resistance
per winding
70
±10%
Ohms
Inductance
1000Hz, 1V
6.0
-
H
Leakage Inductance
1000Hz, 1V
17
-
mH
1:1
±2%
-
Turns Ratio
Mechanical Dimensions & Pinout
0.650
(16.50)
3
TALEMA IN LTM-110A
WK/YR
1
0.650
(16.50)
6
0.295
(7.50)
0.445
(11.30)
4
Schematic
3
1
4
6
0.492
(12.50)
0.217±0.012
(5.50±0.3)
(View from Top)
Dimensions are max. unless otherwise stated: Inches(Millimeters)
Pinout spacings are nominal. Pins: 0.026 x 0.018 (0.66x0.45)
Equivalent Circuit: (Referenced to Primary @ 1V, 1kHz)
RPRI = 70 Ohms
Line
LP = 6.2H
LL = 17.5mH
RP = 35k Ohms
RSEC = 70 Ohms
Modem
Germany: Int.+49 89 - 841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 37 - 744 9303 • India: Int.+91 427 - 244 1325
http://www.talema-nuvotem.com
LTM-110A Line Interface 56kbps Modem Transformer
PERFORMANCE DATA
Return Loss
Typical
Total Harmonic Distortion
Typical
25
-60
-65
20
-70
-75
dB
dB
15
10
-80
-85
-90
5
-95
0
100
-100
1000
10000
100
Frequency Hz
1000
Frequency Hz
Insertion Loss
Typical
4
3.5
3
dB
2.5
2
1.5
1
0.5
0
100
1000
10000
Frequency Hz
Sales & Marketing, Design and Manufacturing Facilities
http://www.talema-nuvotem.com
Eastern Europe &
Czech Republic
NT MAGNETICS s.r.o.
Chebská 27
322 00 Plzeñ
Tel: Int. + 420 37 - 744 9303
Fax: Int. + 420 37 - 744 3697
Email: [email protected]
Germany
Ireland
India
TALEMA ELEKTRONIK GMBH
Sembdnerstr. 5, Postfach 2523
82110 Germering
Tel: Int. + 49 89 - 841 00 - 0
Fax: Int. + 49 89 - 841 00 25
Email: [email protected]
NUVOTEM TEO.
Crolly
Co. Donegal
Tel: Int. + 353 74 - 954 8666
Fax: Int. + 353 74 - 954 8139
Email: [email protected]
TALEMA ELECTRONIC PVT. LTD.
Opposite the SIDCO Industrial Estate
Gins Towers
4/5S.H/1, Omalur Main Road
Salem - 636 004, Tamil Nadu
Tel: Int. + 91 427 - 244 1325
Fax: Int. + 91 427 - 243 0034
E-mail: [email protected]
THE TALEMA GROUP • Magnetic Components for ISDN / xDSL / LAN Data Communications
(12-03) Communications \ Broadband\LTM-110A
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