etaldoc 591/11 page 1 of 6 december 2005 product data sheet low distortion P3356 line matching transformer features applications ? lead-free (pb-free) ? v.90 and v.92 modems ? rohs compliant ? v.34 modems ? low distortion ? fax machines ? 12.6mm (0.5?) seated height ? instrumentation ? industry standard pinout ? iec 60950 and ul 60950 certified ? ul recognized component ? demko certified to en 60950 ? environmentally tested to iec 68 ? cert reliability tested ? excellent frequency response ? simple matching ? high thermal stability description P3356 is intended for v.90 and v.92 (56kbps) modems and other high-speed applications where ultra-low distortion at moderate power levels and very low voiceband frequencies is required at a most competitive price. P3356 uses patented design and construction methods to achieve excellent signal performance and safety isolation to international standards, making it the component of choice for high-speed data applications throughout the world. P3356 is certified to iec 60950, ul 60950 and en 60950. P3356 is a ul recognized component, and is supported by iec cb and demko certificates. the part is completely lead-free, compliant with rohs directive 2002/95/ec, and suitable for lead-free and conventional processing. P3356 has exceptionally flat frequency response from 30hz to 10khz, a 3db bandwidth of over 50khz and requires only the very simplest of matching to achieve good return loss and transhybrid loss across the voiceband, with very low levels of signal distortion at signal frequencies as low as 150hz. P3356 is a rugged lightweight design that exhibits stable characteristics over its full operating temperature range to maximize data throughput under varying environmental conditions without the need for modem retraining. P3356 has been subjected to relevant environmental testing according to iec 68 and combined environmental reliability testing (cert) beyond normal operational levels and passed all tests, remaining fully functional. patented
P3356 etaldoc 591/11 page 2 of 6 december 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 = 600 - 1.5 - db frequency response lf -3db cutoff hf -3db cutoff 100hz ? 4khz - - - 10 55 - - - 0.1 hz khz db return loss (5) 200hz ? 4khz 16 - - db transhybrid loss (5) 200hz ? 4khz 20 - - db third harmonic distortion (1) 150hz -3dbm in line 200hz -10dbm in line - - -70 -89 - - dbm dbm voltage isolation (2) 50hz dc 2.12 3.0 - - - - kvrms kv operating range: functional storage 0 -40 - - +70 +85 oc oc lumped equivalent circuit parameters as fig. 1 dc resistance (3) primary resistance r dcp secondary resistance r dcs 70 95 - - 87 120 leakage inductance, l 3 3.9 5 mh shunt inductance, lp (4) 200hz, 10mv 6 9 - h shunt loss, rp 200hz, 10mv 12 15 - k notes: 1. third harmonic typically exceeds other harmonics by 10db. 2. components are 100% tested at 3.25kvdc. 3. caution: do not pass dc through windings. telephone line current must be diverted using semiconductor line hold circuit or choke. 4. at signal levels greater than 100mv, lp will increase and rp will decrease slightly but the effect is usually favourable to the return loss characteristic. 5. return loss and transhybrid loss can be improved to 30db in improved matching circuit. the values shown relate to the simplest configuration, fig. 2. equivalent circuit fi g . 1 ideal 1:1 ? l ? l
P3356 etaldoc 591/11 page 3 of 6 december 2005 matching recommendations the following recommendations start with the simplest implementations and progress to enhanced performance utilizing additional components. good performance is achieved even with the simplest configurations. the implementations assume a low impedance balanced tx drive and a relatively high impedance rx input, as is commonly available, though use with other tx/rx arrangements is straightforward. note that there are no changes to components on the line side, or in the hybrid, whether 600 or complex reference impedance selected, thus assisting country configuration. for complex impedance, the matching circuits derived are suitable for reference impedances of the type 270 + 750//150nf e.g. european ctr21 and 220 + 820//120nf (or 115nf) e.g. australia, south afri ca, etc., and yield similar performance characteristics. for other impedances, please contact profec technologies. minimum cost implementations insertion loss: 1.8db @ 2khz frequency response : 0.2db 30hz ? 10khz return loss: 16db 200hz ? 4khz transhybrid loss: 22db 200hz ? 4khz insertion loss: 1.0db @ 2khz frequency response : 0.5db 50hz ? 4khz return loss: 18db 200hz ? 4khz transhybrid loss: 14db 200hz ? 4khz improved matching insertion loss: 1.8db @ 2khz frequency response : 0.2db 30hz ? 10khz return loss: 18db 200hz ? 4khz transhybrid loss: 22db 50hz ? 10khz insertion loss: 1.0db @ 2khz frequency response : 0.5db 50hz ? 4khz return loss: 20db 200hz ? 4khz transhybrid loss: 16db 50hz ? 4khz 600 fi g . 4 li ne 600 10nf 560 rxa t xa2 t xa1 22 f 600 fi g . 2 li ne 600 560 rxa t xa2 t xa1 22 f 10nf li ne 270 (220) 750 (820) 22 f 150nf (120nf) 750 100nf* *note: 100nf capacitor should have a temperature stable dielectric 120 europ e a n ctr21/(austra lia, etc .) fi g . 5 rxa t xa2 t xa1 li ne 270 (220) 750 (820) 150nf (120nf) 820 100nf* *note: 100nf capacitor should have a temperature stable dielectric 100 europ e a n ctr21/(austra lia , etc .) fi g . 3 rxa t xa2 t xa1 patented
P3356 etaldoc 591/11 page 4 of 6 december 2005 improved matching and hybrid insertion loss (line to rxa): 2.8db @ 2khz frequency response : 0.2db 30hz ? 10khz return loss: 20db 200hz ? 4khz transhybrid loss: 30db 50hz ? 10khz insertion loss (line to rxa): 2.2db @ 2khz frequency response : 0.5db 50hz ? 4khz return loss: 20db 200hz ? 4khz transhybrid loss: 18db 200hz ? 4khz 600 instrumentation certification insertion loss: 1.5db @ 2khz frequency response : 0.2db 20hz ? 20khz return loss: 16db 20hz ? 20khz safety constructed in accordance with iec 60950-1, en 60950-1, and ul 60950-1, supplementary insulation, 250vrms maximum working voltage, flammability class v-0. there are no special installation requirements (beyond attending to usual pcb track separations) since the integral cover provides supplementary insulation from its external faces to internal core and windings. 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. certified to en 60950-1:2001 (demko certificate 140243-01). 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 180vrms (creepage), 420v peak (clearance), pollution degree 2, supplementary insulation. ul file number e203175. additionally, profec technologies certifies all transformers as providing voltage isolation of 2.12kvrms, 3kv dc minimum. all shipments are supported by a certificate of conformity to current applicable safety standards. 600 fi g . 6 li ne 600 10nf 560 1k 1nf 10k rxa t xa2 t xa1 22 f 10nf 1nf li ne 270 (220) 750 (820) 22 f 150nf (120nf) 750 100nf* *note: 100nf capacitor should have a temperature stable dielectric 120 europ e an ctr21/(austra lia, etc .) fi g . 7 rxa t xa2 t xa1 1k 10k 47 f* 47 f* 600 fi g . 8 600 600 6.8nf 6.8nf * if no dc block required, one of these capacitors can be removed and the other set to 22 f , or, if preferred, both capacitors can be eliminated. patented
P3356 etaldoc 591/11 page 5 of 6 december 2005 environmental testing reliability testing to iec 68 tested to clauses of iec 68 and compliant with all functi onal and safety requirements following exposure as follows: test description iec 68 reference test details result robustness of terminations 68-2-21 test ua 1 68-2-21 test ua 2 tensile 5n pull thrust 1n push no impairment no pin detachment or distortion solderability 68-2-20 test ta method 1 solder bath 235oc 2s resistance to soldering heat 68-2-20 test tb method 1a 68-2-20 test tb method 2 solder bath 260oc 10s soldering iron 350oc 5s no impairment finish smooth, bright and even vibration 68-2-6 test fc sweep 10-55-10hz in 1 minute amplitude 1.5mm pk-pk duration 2h per axis, 3 axes no impairment shock 68-2-27 test ea peak acceleration 1000m/s 2 duration of pulse 6ms 3 shocks each direction on 3 axes no impairment cold 68-2-1 test ab -25oc 16h recovery to ambient 1-2h no impairment dry heat 68-2-2 test bb 125oc 16h recovery to ambient 1-2h no impairment damp heat 68-2-3 test ca 40oc 4 days, rh 93% recovery to ambient 1-2h no impairment change of temperature 68-2-14 test na t a ?25oc t b +85oc t 1 30 min 2 min t 2 3 min recovery to ambient 1-2h 5 cycles no impairment combined environmental re liability testing (cert) components step stressed at increasing levels of severity using combined stresses to detect potential weaknesses. results are shown for highest levels of stress tested. compliant with all functional and safety tests following exposure as follows: test description test details duration result storage test thermal cycling -30oc to +100oc at 11oc/min 6mm pk 2-9hz at 1 octave/min 20m/s 2 9-200hz 20 mins per plane no impairment transportation test thermal cycling -65oc to +80oc random vibration 10-200hz and 200-2000hz at 57m/s 2 rms 2 hours per plane no impairment
P3356 etaldoc 591/11 page 6 of 6 december 2005 construction dimensions shown are in millimetres (inches). geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mm?. windings may be used interchangeably as primary or secondary. total weight typically 6.3g. absolute maximum ratings intellectual property rights (ratings of components independent of circuit). short term isolation voltage (1s) dc current storage temperature lead temperature, 10s 2.12kvrms, 3.0 kvdc 100 a -40oc to +85oc 260oc etal and P3356 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. british patent no. 2333646. usa patent nos. 6, 344, 787; 6,690,254 european patent no. 1082734 china patent no. zl 99806739.3 uk registered design no. 2077360. french registered design no. 991512. united states registered design 426, 815. mexico registered design 12143 other patents and registered designs pending. ? 1998 - 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 connections fm 25326 iso 9001 e203175 dimensio ns e 2
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