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AN351
Maxim > Design Support > Technical Documents > Application Notes > T/E Carrier and Packetized > APP 351
Keywords: transformers, turns ratio, inductance, primary winding, secondary winding, isolation voltage,
Pulse Engineering, Halo Electronics, Bel Fuse, Coev Magnetics, Tyco
APPLICATION NOTE 351
T1/E1 and T3/E3 Transformer Selection Guide
Sep 17, 2007
Abstract: This application note lists vender transformers that meet the specifications required for use with
Maxim Single-Chip Transceivers (SCTs) and Line Interface Units (LIUs). Recommended transformers are
made based on the following transformer specifications: turns ratio, primary inductance, leakage
inductance, interwinding capacitance, and DC resistance for both 5V and 3.3V operation. Actual results
are dependant on the integrity of the PCB design and other termination circuitry and should be verified
by the customer.
Introduction
This application note applies to the following products:
T1/E1
LIUs
T1 SCTs
E1 SCTs
T1/E1
SCTs
T1/E1 Ethernet/Serial
TDM
T3/E3
LIUs
T3/E3
SCTs
DS2148
DS2151
DS2153
DS2156
DS33R11
DS3150
DS3170
DS21348
DS2152
DS2154
DS2155
DS33R41
DS3151
DS3171
DS21Q48
DS21352
DS21354
DS21Q55
DS3152
DS3172
DS21Q348 DS21552
DS21554
DS21455
DS3153
DS3173
DS21448
DS21Q552 DS21Q554 DS21458
DS3154
DS3174
DS2149
DS21Q352 DS21Q354 DS26502
DS3251
DS3181
DS21349
DS2196
DS21Q59 DS26503
DS3252
DS3182
DS26303
DS21Q58 DS26504
DS3253
DS3183
DS26324
DS21Q50 DS26518
DS3254
DS3184
DS26334
DS26519
DS32504
DS26521
DS32506
DS26522
DS32508
DS26524
DS32512
DS26528
Table 1 shows the specifications for our 5V devices and Table 2 shows the specifications for our 3.3V
devices. The specifications for selecting an appropriate transformer are given in the data sheets for each
device and repeated below for simplicity. Table 3 lists the transformer part numbers from multiple
vendors and matches them with the parts listed above.
Page 1 of 21
Table 1. Transformer Specifications for 5V Operation
Specification
Recommended Value
Turns Ratio, 5V Applications 1:1 (RX) and 1:15 or 1:1.36 (TX) ±5%
Primary Inductance
600µH minimum
Leakage Inductance
1.0µH maximum
Interwinding Capacitance
40pF maximum
Transmit Transformer DC Resistance
Primary (Device Side)
1.2Ω maximum
Secondary
1.2Ω maximum
Receive Transformer DC Resistance
Primary (Device Side)
1.2Ω maximum
Secondary
1.2Ω maximum
Table 2. Transformer Specifications for 3.3V Operation
Specification
Recommended Value
Turns Ratio, 3.3V Applications 1:1 (RX) and 1:2 (TX) ±2%
Primary Inductance
600µH minimum
Leakage Inductance
1.0µH maximum
Interwinding Capacitance
40pF maximum
Transmit Transformer DC Resistance
Primary (Device Side)
1.0Ω maximum
Secondary
2.0Ω maximum
Receive Transformer DC Resistance
Primary (Device Side)
1.5Ω maximum
Secondary
1.2Ω maximum
Table 3. Transformer Part Information
Vendor
Part
Turns
Ratio
No.
of
Ports
Package
Type
No.
of
Pins
Temp
Range
Hierarchy
Pulse
PE65388
1:1.15CT
TX only
Through
Hole
6
0°C to
+70°C
T1/E1
Maxim
Device
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
Page 2 of 21
DS21Q554
PE65586
PE65351
PE64936
PE65565
1:1.36CT
1:2CT
1CT:1
1:1.15CT
and 1:2CT
TX only
TX only
RX
only
1
Through
Hole
Through
Hole
Through
Hole
Through
Hole
6
6
6
6
0°C to
+70°C
0°C to
+70°C
0°C to
+70°C
0°C to
+70°C
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
T1/E1
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
DS2196,
DS2151,
DS2152,
DS2153,
Page 3 of 21
TX1315
TX1320
TX1277
PE68882
PE64952
1CT:1CT
1CT:1.36CT
1CT:1CT
and
1CT:2CT
RX
only
TX
Only
1
1CT:1.15CT
and
1
1CT:1CT
1:2CT and
1:1.36
1
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Through
Hole
6
6
14
14
14
-40°C to
T1/E1
+85°C
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59,
DS33R11,
DS33R41
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS2148,
DS21Q48,
DS21552,
Page 4 of 21
DS21Q552,
DS21554,
DS21Q554
PE64953
PE65865
T1076
T1136
1:2CT and
1:2CT
1:1.15CT
and
1CT:2CT
1:1.15CT
and
1CT:2CT
1
1
1
1CT:1CT
and
1
1CT:1.36CT
Through
Hole
Surface
Mount
Surface
Mount
Surface
Mount
14
16
16
16
T1/E1
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS2148,
DS21Q48,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
0°C to
+70°C
0°C to
+70°C
PE68678
1CT:1CT
and
1CT:2CT
1
Surface
Mount
16
0°C to
+70°C
PE68877
1CT:1CT
and
1CT:2CT
1
Surface
Mount
12
-40°C to
T1/E1
+85°C
DS33R11,
DS33R41
DS2155,
DS2156,
Page 5 of 21
T1094
TX1099
TX1467
TX1473
T1068
TX1475
1CT:1CT
and
1CT:2CT
1CT:1:0.8
and
1CT:1:0.8
1CT:1:1
and
1CT:1:1
1
1
1
1:2 and 1:1 4
1:2CT and
1:1CT
1CT:1CT
and
1CT:2CT
4
4
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
16
16
16
32
40
32
-40°C to
T1/E1
+85°C
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21348,
DS21Q348,
DS21448,
DS26502,
DS26503,
DS26504,
DS26521,
DS26522,
DS33R11
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
0°C to
+70°C
T1/E1
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
T1/E1
DS26324,
DS26334,
DS26518,
DS26519,
DS26524,
DS26528
-40°C
to
+85°C
Page 6 of 21
T1114
T1108
TX1292
PE65968
PE65969
1CT:1CT
and
1CT:2CT
1:2CT and
1:1CT
1:1.36 and
1:1
1:2CT
1:2CT
4
4
4
RX or
TX
RX or
TX
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Through
Hole
40
40
40
6
6
-40°C to
T1/E1
+85°C
DS26303
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS2148,
DS21Q48,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
T3/E3
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184,
DS3251,
DS3252,
DS3253,
DS3254
T3/E3
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3170,
DS3171,
DS3172,
DS3173,
DS3174,
DS3181,
DS3182,
DS3183,
DS3184
0°C to
+70°C
DS3150,
DS3151,
DS3152,
Page 7 of 21
T3002
T3012
T3021
T3047
T3049
1:2CT
1:2CT
1:2CT and
1:2CT
1:1
1:2
RX or
TX
RX or
TX
1
4
4
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
6
6
16
32
32
-40°C to
T3/E3
+85°C
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
-40°C to
T3/E3
+85°C
DS32501,
DS32502,
DS32503,
DS32504,
DS32512
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3170,
DS3171,
DS3172,
DS3173,
DS3174,
DS3181,
DS3182,
DS3183,
DS3184
HALO
Electronics
TG381505A
1:1.15CT
TX only
Through
Hole
6
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
Page 8 of 21
DS21Q554
TD701205A
TD151205A
TD021205A
TG041505NS
1:1.36CT
1:2CT
1CT:1
1CT:1CT
TX only
TX only
RX
only
RX
only
Through
Hole
Through
Hole
Through
Hole
Surface
Mount
6
6
6
6
0°C to
+70°C
0°C to
+70°C
0°C to
+70°C
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
T1/E1
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
Page 9 of 21
DS21554,
DS21Q554
TG151505NS
TG381505NS
TG701505NS
TD631505D
TG631505N1
TG351505N1
1CT:2CT
1:1.15CT
1:1.36CT
1:1.15CT
and 1:2CT
1:1.15CT
and
1CT:2CT
TX only
TX only
TX only
1
1
1CT:1.15CT
and
1
1CT:1CT
Surface
Mount
Surface
Mount
Surface
Mount
Through
Hole
Surface
Mount
Surface
Mount
6
6
6
14
16
16
-40°C to
T1/E1
+85°C
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
Page 10 of 21
TGSP1467N1
TG281505N1
TG741205N1
1CT:1:1
and
1CT:1:1
1CT:1CT
and
1CT:1.36C
1CT:1CT
and
1CT:2CT
1
1
1
TG831:2 and 1:1 4
S006NU
TG741205N1
TG070206NS
1CT:1CT
and
1CT:2CT
1
1:2CT
TX or
RX
only
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
Surface
Mount
16
16
16
32
16
6
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
T1/E1
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
0°C to
+70°C
T1/E1
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
T3/E3
DS3150,
DS3151,
DS3152,
DS3153,
DS3154
0°C to
+70°C
DS3150,
Page 11 of 21
TD070206NE
TG070356NS
TG070406N1
TG050206NU
1:2CT
TX or
RX
only
1:2CT
TX or
RX
only
1:2CT and
1:2CT
1:2
1
4
Through
Hole
Surface
Mount
Surface
Mount
Surface
Mount
6
6
16
32
0°C to
+70°C
T3/E3
T3/E3
DS3150,
DS3151,
DS3152,
DS3153,
DS3154
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154
0°C to
+70°C
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS2148,
DS21Q48,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS21352,
DS21354,
DS2148,
DS2155,
DS2196,
DS21Q352,
DS21Q354,
DS21Q48
0°C to
+70°C
Bel
1:1.15CT
S553and
3855-02
1CT:2CT
S5531:2CT and
0013-02 1:1.36
S5531CT:2CT
0013-01 and 1:1
S554-
1:2CT
1
1
1
1
Surface
Mount
Surface
Mount
Surface
Mount
Surface
16
16
16
6
DS3151,
DS3152,
DS3153,
DS3154
0°C to
+70°C
0°C to
+70°C
0°C to
T3/E3
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
Page 12 of 21
3184-01
05541:2CT
3184-01
1CT:1:1
S553and
6500-H5
1CT:1:1
S5541:2
6500-21
Mount
1
4
4
S5531:2 and 1:1 4
6500-C8
05531:1.15CT
0013-RC
TX only
Through
Hole
Surface
Mount
Surface
Mount
Surface
Mount
Through
Hole
+70°C
6
32
32
32
6
0°C to
+70°C
DS3181,
DS3182,
DS3183,
DS3184
T3/E3
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21554,
DS21Q552,
DS21Q554
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
0°C to
+70°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2196,
DS2151,
DS2152,
DS2153,
Page 13 of 21
05531CT:1
0013-BC
05530013-1J
05530013-2J
T2099S
T2006
1:2CT and
1:2CT
1:2CT and
1:1.36
RX
only
1
1
1CT:1CT
and
1
1CT:1.36CT
1:1.15CT
TX only
Through
Hole
Through
Hole
Through
Hole
Surface
Mount
Through
Hole
6
14
14
16
6
0°C to
+70°C
T1/E1
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
T1/E1
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS2148,
DS21Q48,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS2148,
DS21Q48,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
0°C to
+70°C
T1/E1
DS2151,
Page 14 of 21
T2007
T2028S
T0034
1:1.36CT
1:1.15CT
and
1CT:2CT
1:2CT
1CT:1CT
S553and
6500-76
1CT:2CT
1CT:1CT
S553and
6500-E6
1CT:2CT
1CT:1:0.8
S553and
6500-H6
1CT:1:0.8
Coev
TX only
1
TX only
1
1
1
Through
Hole
Surface
Mount
Through
Hole
Surface
Mount
Surface
Mount
Surface
Mount
6
16
6
16
16
32
0°C to
+70°C
0°C to
+70°C
0°C to
+70°C
0°C to
+70°C
T1/E1
DS2152,
DS2153,
DS2154,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
T1/E1
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
T1/E1
DS2196,
DS21348,
DS21Q348,
DS21448,
DS21352,
DS21Q352,
DS21354,
DS21Q354
-40°C to
T1/E1
+85°C
DS21348,
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
-40°C to
T1/E1
+85°C
DS21348,
DS21Q348,
DS21448,
DS2155,
DS2156
DS2151,
Page 15 of 21
PT-311
PT311ET
PT-306
PT306ET
PT-312
1:1.36CT
1:1.36CT
1:2CT
1:2CT
1CT:1
TX only
TX only
TX only
TX only
RX
only
Through
Hole
Through
Hole
Through
Hole
Through
Hole
Through
Hole
6
6
6
6
6
0°C to
+70°C
T1/E1
DS2152,
DS2153,
DS2154,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS21Q552,
DS21554,
DS21Q554
0°C to
+70°C
T1/E1
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
-40°C to
T1/E1
+85°C
DS2155,
DS2156,
DS21Q55,
DS21455,
DS21458,
DS21Q50,
DS21Q58,
DS21Q59
0°C to
+70°C
T1/E1
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
Page 16 of 21
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
PT312ET
PT-323
PT-
1CT:1
1:1
1:1
RX
only
RX
only
RX
Through
Hole
Through
Hole
Through
6
6
6
-40°C to
T1/E1
+85°C
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
0°C to
+70°C
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
-40°C to
T1/E1
T1/E1
DS2196,
DS2151,
DS2152,
DS2153,
DS2154,
DS21348,
DS21Q348,
DS21448,
DS2148,
Page 17 of 21
323ET
only
1:1.15CT
SMD601and
05
1CT:2CT
1
Hole
Surface
Mount
+85°C
16
0°C to
+70°C
DS21Q48,
DS21352,
DS21Q352,
DS21354,
DS21Q354,
DS21552,
DS2121Q552,
DS21554,
DS21Q554
T1/E1
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
1:1.15CT
SMD601and
05ET
1CT:2CT
1
Surface
Mount
16
-40°C to
T1/E1
+85°C
DS2151,
DS2152,
DS2153,
DS2154,
DS21552,
DS21Q552,
DS21554,
DS21Q554
1CT:1CT
SMD606and
05
1CT:2CT
1
Surface
Mount
16
0°C to
+70°C
T1/E1
DS21352,
DS21354
1CT:1CT
SMD606and
05ET
1CT:2CT
1
Surface
Mount
16
-40°C to
T1/E1
+85°C
DS21352,
DS21354
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
-40°C to
T3/E3
+85°C
DS3150,
DS3151,
DS3152,
DS3153,
DS3154,
DS3181,
DS3182,
DS3183,
DS3184
SM01T304M
1:2CT
MGBBT1:2
00019
1
4
Surface
Mount
Surface
Mount
6
32
Page 18 of 21
T1/E1 and T3/E3 Transformer Selection Information
If you have further questions on T1/E1 or T3/E3 transformer selection for our devices, please contact the
Telecommunication Applications support team. For more information about specific transformers, please
consult the manufacturers using the information listed below.
Vendor List
Address
Phone
Fax
Website
Pulse Engineering Inc.
12220 World Trade Drive 858-674-8100 858-674-8262 www.pulseeng.com
San Diego, CA 92128
HALO Electronics Inc.
1861 Landings Drive
650-903-3800 650-903-9300 www.haloelectronics.com
Mountain View, CA 94043
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
201-432-0463 201-432-9542 www.belfuse.com
Coev Magnetics (Tyco)
3003 9th Avenue SW
Watertown, SD 57201
605-886-3326 605-884-3640 www.coev.net
Related Parts
DS21348
3.3V E1/T1/J1 Line Interface
Free Samples DS21349
3.3V T1/J1 Line Interface Unit
Free Samples DS21352
3.3V DS21352 and 5V DS21552 T1 Single Chip
Transceivers
DS21354
3.3V/5V E1 Single Chip Transceivers (SCT)
DS21448
3.3V E1/T1/J1 Quad Line Interface
Free Samples DS21455
Quad T1/E1/J1 Transceivers
Free Samples DS21458
Quad T1/E1/J1 Transceivers
Free Samples DS2148
5V E1/T1/J1 Line Interface
DS2149
5V T1/J1 Line Interface Unit
DS2152
Enhanced T1 Single Chip Transceiver
DS2154
Enhanced E1 Single Chip Transceiver
DS2155
T1/E1/J1 Single-Chip Transceiver
Free Samples DS21552
3.3V DS21352 and 5V DS21552 T1 Single Chip
Transceivers
DS21554
3.3V/5V E1 Single Chip Transceivers (SCT)
Free Samples Page 19 of 21
DS2156
T1/E1/J1 Single-Chip Transceiver TDM/UTOPIA II
Interface
Free Samples DS2196
T1 Dual Framer LIU
DS21Q348
3.3V E1/T1/J1 Line Interface
DS21Q352
Quad T1/E1 Transceiver (3.3V, 5.0V)
DS21Q354
Quad T1/E1 Transceiver (3.3V, 5.0V)
DS21Q48
5V E1/T1/J1 Line Interface
DS21Q50
Quad E1 Transceiver
DS21Q55
Quad T1/E1/J1 Transceiver
DS21Q552
Quad T1/E1 Transceiver (3.3V, 5.0V)
DS21Q554
Quad T1/E1 Transceiver (3.3V, 5.0V)
DS21Q58
E1 Quad Transceiver
DS21Q59
E1 Quad Transceiver
DS26521
Single T1/E1/J1 Transceiver
Free Samples DS26522
Dual T1/E1/J1 Transceiver
Free Samples DS26524
Quad T1/E1/J1 Transceiver
Free Samples DS26528
Octal T1/E1/J1 Transceiver
Free Samples DS3150
3.3V, DS3/E3/STS-1 Line Interface Unit
Free Samples DS3151
Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
DS3152
Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
DS3153
Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
DS3154
Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs
Free Samples DS3181
Single/Dual/Triple/Quad ATM/Packet PHYs with Built-In
LIU
Free Samples DS3182
Single/Dual/Triple/Quad ATM/Packet PHYs with Built-In
LIU
Free Samples DS3183
Single/Dual/Triple/Quad ATM/Packet PHYs with Built-In
LIU
DS3184
Single/Dual/Triple/Quad ATM/Packet PHYs with Built-In
LIU
Free Samples More Information
For Technical Support: http://www.maximintegrated.com/support
Page 20 of 21
For Samples: http://www.maximintegrated.com/samples
Other Questions and Comments: http://www.maximintegrated.com/contact
Application Note 351: http://www.maximintegrated.com/an351
APPLICATION NOTE 351, AN351, AN 351, APP351, Appnote351, Appnote 351
© 2012 Maxim Integrated Products, Inc.
Additional Legal Notices: http://www.maximintegrated.com/legal
Page 21 of 21
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