etaldoc 71/17 page 1 of 4 april 2005 product data sheet line matching transformer P1200 features applications ? industry standard ? v.32bis and v.22bis modems ? lead free (pb-free) ? line matching ? rohs compliant ? set top boxes ? 12.6mm (0.5") seated height ? instrumentation ? vacuum encapsulated ? portable computers ? iec 60950 and ul 60950 certified ? fax / modems ? ul recognized component ? voice description P1200 is the transformer of choice in medium-speed applications where good performance in a robust resin encapsulated package is required at a most competitive price. P1200 meets international safety standards, being vacuum encapsulated and 100% tested to withstand 6.5kv dc. the part is completely lead-free, compliant with rohs directive 2002/95/ec, and suitable for lead-free and conventional processing. P1200 is ideal for voice telecommunications applications and for data communications to v.32 bis (14,400 bits/second) data rates. with care, P1200 may be used for v.34 applications to 28,800 bits/second. P1200 is specifically designed to be easily matched to both 600 ohm and complex impedance telephone lines, using a minimum of external components. P1200 is certified to iec 60950 and ul60950. P1200 is a ul recognized component and is supported an iec cb test certificate.
P1200 etaldoc 71/17 page 2 of 4 april 2005 specifications electrical at t = 25oc and as circuit fig. 2 unless otherwise stated. parameter conditions min typ max units insertion loss f = 2khz, r l = 560 - - 1.5 db frequency response lf-3db cutoff hf-3db cutoff 200hz - 4khz - 10 - - - - 50 - 0.2 hz khz db return loss 200hz - 4khz 18 - - db third harmonic distortion (1) 450hz 0dbm - -72 -60 dbm balance dc ? 5khz method tg25 80 - - db saturation excitation 50hz 250v rms. output voltage across line - - - - 10 65 v rms v peak voltage isolation (2) 50hz dc 3.88 5.5 - - - - kvrms kv operating range: functional storage ambient temperature 0 -40 - - +70 +125 oc oc lumped equivalent circuit parameters as fig. 1 dc resistance, r dc (3) sum of windings 120 - 148 leakage inductance l 14.5 - 18 mh shunt inductance lp (4) 10mv 200hz 10mv 1khz 2.8 - 4 2 7 - h h shunt loss rp (4) 10mv 200hz 10mv 1khz 5 7 - - - - k k notes 1. third harmonic typically exceeds other harmonics by 20db. 2. components are 100% tested at 6.5kv dc. 3. caution: do not pass dc through windings. telephone line current, etc. must be diverted using choke or semiconductor line hold circuit. 4. at signal levels greater than 100mv, lp will increase and rp will decre ase slightly but the effect is usually favourable to the return loss characteristic. equivalent circuit fi g . 1 ideal 1:1 li n e eq ui pm ent ? l ? l ? r ? r
P1200 etaldoc 71/17 page 3 of 4 april 2005 matching recommendations construction dimensions shown are in millimetres (inches). geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mm recommended circuit fi g . 2 560 li ne 600 * if return loss > 16db, 300hz - 4khz is acceptable, blocking cap acitor may be relaxed to 4.7 f 33nf 27nf 5% + _ 2% + _ * +50% 20% _ 6.8 f +50% 20% _ 5% + _ 600 match figure 3 gives flat rx and tx responses against the ctr21 complex reference impedance (typically around 0.5db 300hz - 3.4khz). return loss is typically better than 20db. the circuit values in parentheses give optimum flatness at a small sacrifice in return loss. for circuits with existing board drillings, figure 4 gives good return loss (>20db) and rx flatness against the ctr21 complex reference impedance, but tx flatness is degraded by the use of this topology. european ctr21 complex match recommended circ uit fi g . 3 150 (220) line 270 750 750 (680) 56nf (150nf) 100nf 150nf 2.2 f fi g . 4 820 li ne 270 750 330 27nf 68nf 150nf 2.2 f e 2
P1200 etaldoc 71/17 page 4 of 4 april 2005 windings may be used interchangeably as primary or secondary.
P1200 etaldoc 71/17 page 5 of 4 april 2005 safety certification constructed in accordance with iec 60950-1, en 60950-1, supplementary insulation, and ul 60950-1, reinforced insulation, 250vrms maximum working voltage, flammability class v-0. distances through solid insulation 0.4mm minimum. certified under the iec cb scheme (certificate dk-8570) to iec 60950-1-2001, sub-clauses 1.5, 1.5.1, 1.5.2, 1.7.1, 2.9, 2. 9.1, 2.9.2, 2.9.3, 2.10, 2.10.1, 2.10.2, 2.10.3, 2.10.3.1, 2.10.3.3, 2.10.4, 2.10.5, 2.10.5.1, 2.10.5.2, 2.10.5.4, 4.7, 4.7.1 (classv-1), 4.7.3, 4.7.3.1, 4.7.3.4, 5.2, 5.2.1, 5.2.2, 6.1.2.1 (finland, norway, sweden national deviations) for a maximum working voltage of 250vrms, nominal mains supply voltage not exceeding 300vrms and a maximum operating temperature of 70oc in pollution degree 2 environments, supplementary insulation. recognized under the component recognition program of underwriters laboratories inc. to us and canadian requirements can/csa c22.2 no. 60950-1-03/ul60950-1, first edition, based on iec 60950-1, first edition, maximum working voltage 250vrms, pollution degree 2, reinforced insulation. ul file number e203175. additionally, profec technologies certifies all transformers as providing voltage isolation of 3.88kvrms, 5.5kv dc minimum. all shipments are supported by a certificate of conformity to current applicable safety standards. absolute maximum ratings copyright (ratings of components independent of circuit). short term isolation voltage (1s) dc current storage temperature lead temperature, 10s 4.6kvrms, 6.5kv dc 100 a -40oc to +125oc 260oc etal, P1200, are trade marks of profec technologies ltd. the trade mark etal is registered at the uk trade marks registry. profec technologies ltd. is the owner of the design right under the copyright designs and patents act 1988 and no rights or licences are hereby granted or implied to any third party. ? 1996-2005 profec technologies ltd. reproduction prohibited. etal group oy, kuormatie 14, fin-03101, nummela telephone: +358 (0)20 7500 330 fax: +358 (0)20 7500 333 website: www.etalgroup.com email: etalgroup@egruppen.com fm 25326 iso 9001 e203175
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