Analog Telephony/Modem Couplers Suitable modem speeds V.32bis (14
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SMIT-1393
Analog Telephony/Modem Couplers
Suitable modem speeds V.32bis (14.4 kbps). Total Harmonic Distortion rated typ. dBm. Insertion Loss rated 2.80 typ. 1000 Complies with IEC60950 Supplementary safety norms. Reflects Ohms Primary with Ohms Secondary Load 600-Ohm telephone lines. Uses minimal external components impedance matching pan-European CTR-21 telephone lines. Very small footprint (20.0mm 16.3 mm). Thin (PCMCIA) Profile (4.32 mm). Industry-standard configuration.
DESCRIPTION
Sumida SMIT-1393 "Dry" Modem Isolation Transformer suitable V.32bis (14.4 kbps) analog modem applications compliant with Worldwide safety norms.
NOMENCLATURE (fig.
SUPPLIER NAME
SMIT-1393X
SUPPLIER
UL/C-UL APPROVAL COUNTRY ORIGIN
XX-XX
sumida
(Suffix thru form)
DATE CODE LOCATES TERMINAL
PRODUCT COMPLIANCE
UL/C- recognized file number: E171120 certificate number(s): BABT certificate recognition: 8122 1905
MECHANICAL DIMENSIONS (fig.
DIMENSIONS: MILLIMETERS [INCHES]
4.32 [0.170] 16.26 [0.640] 1.35 [0.053] 0.15 [0.005] 1.00 [0.039] 1.10 [0.042] 2.54 [0.100] 4.00 [0.160]
RECOMENDED LAYOUT
1.50 [0.059]
1.50 [0.059]
16.52 [0.650]
Nomenclature
20.00 [0.787]
20.00 [0.787]
SMIT-2393A
SMIT-2393B
SMIT-2393C
SMIT-2393D
SMIT-2393E
2.00 [0.080] 2.00 [0.079]
TERMINAL CONNECTION (BOTTOM VIEW)
PRIMARY (LINE)
SECONDARY (MODEM)
NOTE: Routing conductive traces under transformer recommended Literature number: SMIT-1393 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
www.sumida.com
North America Hong Kong Europe Tel. 2880 6688 Fax. 2565 9600 Tel. 328850 Fax. 300890 Tel. 6700 Fax. 6720 Singapore Taiwan Japan Tel. 3388 Fax. 3390 Tel. 2523 6368 Fax. 2523 6369 Tel. 3980 2212 Fax. 3980 2213
SMIT-1393
Analog Telephony/Modem Couplers
Electrical Performance Specifications
Parameters
Impedance Total Harmonic Distortion Insertion Loss Return Loss
Conditions
Reflected Primary with load Secondary
IEEE method; @1000 match
Hz-3500 Match (Fig. CTR21 Pan-Euro Match Fig.5)
2.80
Units
Ohms
3.45
Vrms Vrms
1500 1875 ±0.25
Dielectric Breakdown Isolation Safety Standard tested min. HiPot Voltage Production methods applied: Duration Trip Leakage Current Frequency Response Longitudinal Balance 4000 part 68.310 -1000 1000 4000 Resistance 20°C, ±10% current Primary Turns Ratio Operating temperature Storage temperature Soldering temperature Sec. Primary Secondary; Primary winding (Rpri) Secondary winding (Rsec)
Ohms mADC Turns
Electrical Performance Specifications 25°C unless otherwise specified)
MATCH
(FIG.3)
SCHEMATIC EQUIVALENT
Typical values 1000 Vrms
(FIG.4)
RLine= Rpri =145
RLoad=
LLeak=4.6
RSec=160 MODEM
LINE
Lp=2
Rp=10.8k
Turns Ratio
Sumida Corporation makes assertion warranty that circuitry uses thereof disclosed herein non-infringing valid foreign patents. Sumida assumes liability result said specifications reserves right make changes specifications without notice. Sumida does authorize warrant Sumida device life support devices and/or systems. Contact your nearest Sumida Sales Office latest specifications.
Literature number: SMIT-1393 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
Analog Telephony/Modem Couplers
SMIT-1393
PAN-EUROPEAN CTR21 MATCH
(FIG.5)
(Application circuits available request specific national match requirements.)
CCLP=150nF RCLS=270 CCIN=3.3µF
RCLP=750
CCSS=27nF CCPS=82nF RCLoad=780
RCPS=
TAPE REEL PACKAGING
(FIG.6)
330.2 Dia. [13.00] Cover Tape Thickness 0.051 Max. [0.002]
5.45 Max. [0.215]
1.75 0.10 [0.069 0.004]
2.00 0.10 [0.079 0.004]
1.50 0.10 -0.00 [0.059 0.004]
4.00 0.10 [0.157 0.004]
2.00 Min. [0.079]
0.35 Max. [0.014]
14.20 0.10 [0.559 0.004]
5.10 Max. [0.201]
16.77 0.10 [0.660 0.004]
28.40 0.10 32.00 0.30 [1.118 0.004] [1.260 0.012]
0.30 Max. [0.012]
Cover Tape 0.50 [0.020] 20.60 0.10 [0.811 0.004] User Direction Feed 0.75 [0.030] 0.20 0.05 [0.008 0.002]
24.00 0.10 [0.945 0.004]
Embossed Carrier
Embossment
Literature number: SMIT-1393 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
SMIT-1393
Analog Telephony/Modem Couplers
PERFORMANCE DATA
TOTAL HARMONIC DISTORTION
-100 1000 2000 4000 Typical (dB) across Frequency (Hz)
INSERTION LOSS
-0.5 -1.0 -1.5 -2.5 -3.0 -3.5 -4.0 1000 2000 4000 Typical Insertion Loss (dB) across Frequency (Hz) -1.0 -2.0 -3.0 -4.0
FREQUENCY RESPONSE
Typical Frequency Response (dB) across Frequency (Hz)
1000
2000
4000
RETURN LOSS
1000 2000 (Measured Match depicted Fig. 4000 Typical Return Loss (dB) across Frequency (Hz) 1000 2000 (Measured CTR21 Match depicted Fig. 4000 Typical Return Loss (dB) across Frequency (Hz)
Literature number: SMIT-1393 ©Copyright 2001, Sumida Corporation rights reserved. Printed U.S.A. 11/01
www.sumida.com
North America Hong Kong Europe Tel. 2880 6688 Fax. 2565 9600 Tel. 328850 Fax. 300890 Tel. 6700 Fax. 6720 Singapore Taiwan Japan Tel. 3388 Fax. 3390 Tel. 2523 6368 Fax. 2523 6369 Tel. 3980 2212 Fax. 3980 2213
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