PRODUCT DATA SHEET LOW DISTORTION LINE MATCHING TRANSFORMER Features Applications ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ V.90 and V.92 Modems ∗ V.34 Modems Lead-free (Pb-free) RoHS compliant Low Distortion 12.6mm (0.5”) Seated Height Industry Standard Pinout IEC 60950 and UL 60950 Certified UL Recognized Component Environmentally tested to IEC 68 CERT reliability tested Excellent Frequency Response High Thermal Stability Directly replaces ATS-255 P3355 DESCRIPTION P3355 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. P3355 is offered as a direct replacement for ATS-255 in existing circuits without changes to matching components, but re-engineered for significantly improved thermal stability. P3355 uses patented design and construction methods to achieve excellent signal performance and safety isolation to international standards. P3355 is certified to IEC 60950 and UL 60950. P3355 is a UL Recognized Component and is supported by an IEC CB Test Certificate. The part is completely lead-free, compliant with RoHS Directive 2002/95/EC, and suitable for lead-free and conventional processing. P3355 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. FOR NEW DESIGNS P3356 IS RECOMMENDED ETALDOC 702/7 Patented Page 1 of 5 April 2005 P3355 SPECIFICATIONS Electrical At T = 25ºC and as reference circuit Fig. 2 unless otherwise stated. Parameter Conditions Min Typ Max Units Insertion Loss f = 2kHz, RL = 600Ω - 2.4 - dB Frequency Response LF -3dB cutoff HF -3dB cutoff 100Hz – 4kHz - 10 30 - ±0.1 Hz kHz dB Return Loss 200Hz – 4kHz 26 - - dB Third Harmonic Distortion(1) 150Hz -3dBm in line - - -76 dBm Voltage Isolation(2) 50Hz DC 2.12 3.0 - - kVrms kV 0 -40 - +70 +85 ºC ºC 126 173 - 154 211 Ω Ω 3.6 - 6 mH Operating Range: Functional Storage Lumped equivalent circuit parameters as Fig. 1 DC resistance(3), RDCP RDCS Primary Secondary Leakage inductance, ΔL Shunt inductance, Lp 200Hz 1V 10 23 - H Shunt loss, Rp 200Hz 1V 20 24 - kΩ Equivalent Circuit 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. Fig. 1 ½ L R R ½ L IDEAL 1:1 Patented ETALDOC 702/7 Page 2 of 5 April 2005 P3355 600Ω Referenc e Circuit Fig. 2 22μF 600 LINE 270 TXA1 10nF TXA2 CONSTRUCTION Dimensions Connections e2 Dimensions shown are in millimetres (inches). Geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mmØ. Windings may be used interchangeably as primary or secondary. Total weight typically 7g. Patented ETALDOC 702/7 Page 3 of 5 April 2005 P3355 ENVIRONMENTAL TESTING Reliability testing to IEC 68 Tested to clauses of IEC 68 and compliant with all functional and safety requirements following exposure as follows: Test description IEC 68 reference Test details Result Robustness of terminations 68-2-21 Test Ua1 68-2-21 Test Ua2 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 Solder bath 260ºC 10s 68-2-20 Test Tb Method 2 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 Shock 68-2-27 Test Ea No impairment Peak acceleration 1000m/s2 Duration of pulse 6ms 3 shocks each direction on 3 axes 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 TA –25ºC TB +85ºC t1 30 min 2 min ≤t2≤3 min Recovery to ambient 1-2h 5 cycles No impairment No impairment Combined Environmental Reliability 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/s2 9-200Hz 20 mins per plane No impairment Transportation Test Thermal cycling -65ºC to +80ºC Random vibration 10-200Hz and 200-2000Hz at 57m/s2 RMS 2 hours per plane No impairment ETALDOC 702/7 Page 4 of 5 April 2005 P3355 SAFETY ABSOLUTE MAXIMUM RATINGS (Ratings of components independent of circuit). Constructed in accordance with IEC 60950-1, EN 60950-1 and UL 60950-1, supplementary insulation, 250Vrms maximum working voltage, flammability class V-0. Short term isolation voltage (1s) 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. Lead temperature, 10s CERTIFICATION DC current Storage temperature 2.12kVrms, 3.0 kVDC 100μA -40ºC to +85ºC 260ºC INTELLECTUAL PROPERTY RIGHTS 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. 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. ETAL and P3355 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. P3355 design and construction are protected by patents and registered design. 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 E203175 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: [email protected] ETALDOC 702/7 Page 5 of 5 ISO 9001 FM 25326 April 2005