SPECIFICATION BMS1813F-11C-08H4.
APPROVAL SHEET FOR SMARTPHONE SPEAKER TOTAL PAGE 12 www.bestargroups.com RoHS/HF Customer Model Name BMS1813F-11C-08H4.5 LF Customer P/N Product No. 10.Sep. 2013 Issue No. Date 02 of 13 Page Issue Date 139726 BS/TES01.1230B 2013/09/10 Table of Contents: 1.Test Climatic Condition 2.Description 3.Characteristics 4.Test Setup 5.Drawing 6.Reliability Test 7.Packing 8.History Change Record Drawn by Checked by Approved by Customer approved BESTAR ACOUSTICS CO.,LTD No.199 HuangHe West Road.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 1.Test Climatic Condition 1.1 Ambient Temperature :15°C~35°C,Preferably at 20°C 1.2 Relative Humidity:25% to 75% 1.3 Air Pressure:86kPa~106kPa 2.Description G G 2.1 Acoustic Component Performance Specification 2.2 The present document specifies performance requirements for the acoustic characteristics of speaker 3.Characteristics 3.1 Electrical and Mechanical Characteristics F This print and information there in are proprietary to Bestar Acoustics Co., Ltd.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 4. Test Setup 4.1 Speaker Measurement Circuit Power Amplifier 0.5W(2Vrms) G This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content F G 10cm Mic F Speaker Audio Analyser Baffle Anechoic chamber E E 4.2 Baffle Drawing unit:cm tolerance:±2 D D 4.3 Test Method The speaker shall be mounted in a baffle of the dimensions 80X100cm show figure 4.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 4.4 Frequency Response Curve (only for reference) Magn 0 dB re 20.00 μPa/V A: Frequency Response F This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content G Sound Pressure Level (dB) G 1/12Oct F E E Frequency (Hz) 4.4.1 Sensitivity SPL is expressed in dB rel 20μPa,computed according to IEC 268-5. Measurement set up according chapter 4.
5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 4.5 Total Harmonic Distortion (only for reference) Magn 0 dB re 20.00 μPa/V A: Frequency Response 1/12Oct This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content F G THD (%) G F E E Frequency (Hz) D D 4.5.1 THD THD is measured according test set up in chapter 4.1 and parameters according chapter 4.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 4.6 F0 Curve (only for reference) Magn 0 dB re 20.00 μPa/V A: Frequency Response 1/12Oct G F F This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content (ohm) G E E Frequency (Hz) D D 4.6.1 Resonance Frequency Resonance frequency is measured according test set up in chapter 4.1 and parameters according chapter 4.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 4.7 R&B Curve (only for reference) Magn 0 dB re 20.00 μPa/V A: Frequency Response 1/12Oct 10 G G 9 8 7 (%) 6 F F 5 This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content 4 3 2 E E 1 0 100 1000 10000 Frequency (Hz) 4.7.1 R&B R&B is measured according test set up in chapter 4.1 and parameters according chapter 4.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content 5. Drawing G G F F Underyoke Face:S Pole E E Diaphragm Face:N Pole D D C C B B unit:mm tolerance:±0.2 2013/09/10 Date: A B 2013/09/10 Rev. Date 王凯 Drawn Note Drawn by: 王凯 Checked by: 王凯 Approved by: 汪珍珍 www.bestargroups.com wu@be-star.com 6 5 4 3 BMS1813F-11C-08H4.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 5. Drawing 2 G 1 F 5 This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content G 6 4 F 7 3 E E No Description of the part Material 1 Front Cover PC 2 Diaphragm PEEK+AL 3 Coil SDHT 4 Polar piece SPCC 5 Magnet D D C Nd-Fe-B C 6 Under Yoke SPCC 7 Frame PPA B B 2013/09/10 Date: A B 2013/09/10 Rev.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 6. Reliability Test 6.1 Load Test Power (Nom) Duration G This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content F 0.5W(sine wave/in 1cc box) 96hrs 6.2 High Temperature Test Temperature Duration +85±3°C 96hrs 6.3 Low Temperature Test Temperature Duration -40±3°C 96hrs 6.4 Damp Heat Temperature Relative Humidity Duration 40±3°C 90%-95%RH 96hrs 6.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content 7. Packing G G F F E E D D C C P/O NO. MODEL O’TY N.W. G.W. SIZE B Remark: 100 pcs per tray PCS 10 trays for unit 1000 pcs per carton 2 carton per box 46×28×24cm B Total 2000pcs per box Size: 35×27×30(cm) 2013/09/10 Date: A B 2013/09/10 Rev.
6 5 4 3 1 2 BMS1813F-11C-08H4.5 LF H 8. History Change Record Change Items version No. Before A G 增加剖面图 This print and information there in are proprietary to Bestar Acoustics Co., Ltd. and shall not be used in whole or in part without its written content B Date Drawn Approved 2013/08/02 乔明亮 汪珍珍 2013/09/10 王 凯 汪珍珍 After G F F E E D D C C B B 2013/09/10 Date: A B 2013/09/10 Rev. Date 王凯 Drawn Note Drawn by: 王凯 Checked by: 王凯 Approved by: 汪珍珍 www.bestargroups.