OWR-1228T-32B

Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 1/9 OLE WOLFF www.owolff.com Revision: 02 SPECIFICATION PRELIMINARY SPECIFICATION Receiver Part Number OWR-1228T-32B Note This item is in compliance with the following requirements: 1. RoHS directive 2. REACH Customer P/N Prepared Checked Signature / Date Ole Wolff Approved Ryan Li 2022.03.24 2022.03.24 Confirmation Customer Signature / Date REVISION NOTES: Date Rev. 2021.01.27 00 Initial Release 2021.03.26 01 Correct the thickness’ information on Page 7. 2022.03.24 02 Added marking information on Page 8 and packing on Page 9. OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 Description of Revision OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 2/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 1. SCOPE THIS SPECIFICATION IS APPLIED AS A RECEIVER UNIT FOR AN EARPHONE. 2. TEST CONDITIONS TEMPERATURE : 24°  27°C HUMIDITY : 60°  70°C (R.H.) ATMOSPHERE : 860  1060 hPa 3. GENERAL REQUIREMENTS OPERATING TEMPERATURE RANGE: -20°  55°C STORAGE TEMPERATUR RANGE: -25° 60°C 4. MECANICAL LAYOUT & DIMENSIONS DIMENSIONS : SHOWN IN FIGURE 4. UNIT WEIGHT : 0.66g +/-0.1g 5. ELECTRICAL AND ACOUSTICAL CHARACTERISTICS 1. IMPEDANCE on IEC 60318-4 32   2. SOUND PRESSURE LEVEL on IEC 60318-4 124 dB  3 dB at 179 mV/IEC711 Coupler @ 1KHz, Fig.2. 3. SPL SORTING ON IEC 60318-4 coupler Group A: Group B: Group C: 4. RESONANCE FREQUENCY on IEC 60318-4 580Hz ± 15% 5 Frequency response on IEC 60318-4 Typical performance as shown in Fig.3. (Test input 0.179V/1mW) 6 Total Harmonic Distortion on IEC 60318-4 THD as shown in Fig.3 (Test input 0.179V/1mW) 7. Sound Pressure Level in free field 82dB at 1000Hz with input 0.179V/1mW (0dB=20μPa) 8. Resonance frequency in free field 200Hz with input 0.179V/1mW (for reference) 9. Frequency response in free field Typical performance as shown in Fig.4. (Test input 0.179V/1mW) (for reference) 10. Total Harmonic Distortion in free field THD as shown in Fig.4 (Test input 0.179V/1mW) (for reference) 15% (at 179mV 1KHz) 125.01~127dB marking = Red 123.00 ~ 125.00dB marking = Blue 121 ~ 122.99dB marking = Black 11. RATED INPUT POWER (Nominal /Maximum): 12. BUZZ AND RATTLES Must be normal with a Sine wave from 50Hz to10kHz. Rated input power 3mW/0.31V by hearing test. Receiver is in vertical position and at free air. OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 3mW /5mW, 0.31V /0.4V OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 3/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 6 QUALIFICATION TESTS Sensitivity difference at 1000Hz shall be within ±3dB from initial value after each test. The measurement shall be done after minimum 2 hours with conditioning of 24° C ~27° C. No. ITEMS 1 HIGH TEMPERATURE TEST STORAGE 2 3 4 TEST CONDITION Temperature 60± 3° C Duration 96hrs Temperature -25± 3° C Duration 96hrs Temperature 40±3° C Humidity 90%--95%(RH) Duration 96hrs Height With protector grill 0.75m to concrete LOW TEMPERATURE TEST STORAGE HIGH TEMPERATURE HUMIDITY TEST DROP TEST Total times 5 6 7 8 OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 Temperature -25±3° C ↔60±3° C Duration 2hours, 5mins, 2hours Cycles 5 cycles Test signal and Temperature Pink noise /25° C Test input power 5mW Cycles 1sec On, 1min Off, 60cycles Test signal and Temperature Pink noise /25° C Test input power 5mW Cycles 1min On/ 2min Off, 10 cycles Test signal and Temperature Pink Noise / 25° C Test input power 3mW/0.31Vrms Duration 96hrs TEMPERATURE CYCLE TEST SHORT TERM MAX INPUT TEST LONG TERM MAX INPUT TEST RATED POWER TEST OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 10 times OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 7 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 4/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 MEASUREMENT METHOD FOR DYMANIC RECEIVER (FIG. 1) 7.1 MEASUREMENT CIRCUIT FOR DYNAMIC REVCEIER (Fig. 1) NO EQUIPMENT DUT 1 Adapter 2 Audio Analyzer 3 Audio Amplifier 4 Artificial ear 5 Microphone supplier 6 7.2 IEC 711 TEST JIG JIG (Fig. 2) OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 REMARKS Receiver As shown on Fig.2 LISTEN SOUNDCHECK LEM DPA300 GRAS 43AA GRAS 12AX OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B OLE WOLFF www.owolff.com Revision: 02 SPECIFICATION 5/9 FREQUENCY RESPONSE & THD CURVES (FIG. 3) Test input 0.179V on IEC 60318-4 coulper, 1/6oct. Soundcheck stimulus step size 8 min cycles and 5ms min duration. The following tolerances are offset values. Limit is absolute value based on the golden sample offset. Frequency(Hz) Upper limit Lower limit OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 50 +6 -5 200 +4 -4 280 +4 -4 560 +4 -5 1000 +4 -4 2000 +5 -4 2800 +4 -5 5000 +4 -5 6300 +4 -5 7100 +4 -6 8000 +6 -7 Frequency (Hz) 50 900 1800 4000 10000 Hz THD 4 4 3 3 3 % OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 9000 +10 -8 10000 +10 -12 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Hz dB dB Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 6/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 FREE FIELD TEST (Fig.4) Test input 0.179V, 10mm 1/6oct in free filed. OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 7/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 8. DIMENSIONS (Unit: mm. Tolerance: +/-0.3) Fig 5: Receiver assembly Polarity and binning Marking: Bin A = Red dot, Bin B = Blue dot, Bin C = Black dot. OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 8/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 9. Marking OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156 Date Page 24-Mar-2022 DK P/N: OWR-1228T-32B 9/9 SPECIFICATION OLE WOLFF www.owolff.com Revision: 02 10. Packaging OLE WOLFF ELEKTRONIK A/S Roedengvej 25 4180 Soroe Denmark TEL: +45 57833830 FAX: +45 57820019 OLE WOLFF ELECTRONICS INC. 1525 McCarthy Blvd, Suite 1093 Milpitas, Ca 95035 USA TEL : +1 408 888 8413 OLEWOLFF ELEKTRONIK GmbH Schulstrasse 15A. DE-25451 Quickborn. Germany OLEWOLFF ELECTRONICS 3 Bedford Street, Woburn, Bedfordshire MK17 9QB, ENGLAND TEL: +49 (0) 4106 765900 FAX: +49 (0) 4106 627297 TEL: +44 (0) 1525 290755 FAX: +44 (0) 1525 290855 OLE WOLFF ELEKTRONIK Yliopistonkatu 26 (P.O.BOX 257) FI-40101 Jyväskylä Finland TEL: +358 14 338 3050 FAX: +358 14 338 3059 OLE WOLFF (ASIA) LTD. Unit B, 19/F., Bold Win Ind. Bldg., No. 16-18 Wah Sing St., Kwai Chung, N.T., H.K. OLE WOLFF LTD. Unit 7A08, Block 2, Elite Building, Nanshan Avenue, Nanshan District, Shenzhen, PRC. TEL: +852 2424 3274 FAX: +852 2424 2219 TEL: +86 755 82612542 TEL: +86 755 26406156