制 品 规 格 书 | ||||
SPEAKER SPECIFICATION | ||||
| 一、适用范围Applicable Scope（this kind of specification is applied in multi-media） | ||||
| 1.1 类型 Type | Permanent-magnet dynamic loudspeaker | |||
| 1.2 寸法 Dimensions | outer diameter 49.6 mm High 12 mm | |||
| 1.3 输入功率 Input power | Rated power 3.0W;Maximum power:4.0W | |||
| 二、机械特性Mechanical Speciality | ||||
| 2.1 外观尺寸Appearance imensions | See Product drawing | |||
| 三、电气特性Electrical Speciality | ||||
| 3.1 标称阻抗Nominal Impedance | 4Ω±15% At 1000 Hz test | |||
| 3.2 直流阻抗DC Impedance | 3.6Ω±10% | |||
| 3.3 最低共振周波数 Lowest Resonance Frequency | 610 Hz±20% | |||
| 3.4 灵敏度Output Sound Pressure Level | 91± 3 dB / 1 W/1m | |||
Average at 800.1000.1200.1500 Hz | ||||
| 3.5 有效频宽Effective Frequency Band | F0～5KHz Average SPL-10 dB | |||
| 3.6 失真率Distortion | <10% Maxium at 1000 HZ 0.1W/0.1M | |||
| 3.7 纯音检测Pure tone Test | Must be normal at sine wave 3.46 V at 300HZ ~ 3KHz | |||
| 3.8 极性Polarity | When a positive current is supplied from the speaker the terminal marked (＋) and a negative to the other terminal the diaphragm must move toward the front． | |||
| 四、信赖性Reliable Test | ||||
| 4.1 连续负荷Load Test | Use Sunlilab-Model-8121c white noise signal 3.0W 72 Hour After the test should be able to meet the requirements of section 3.46There shall be no distinct deformation in appearance. | |||
| 4.2高温保存High-temperature preservation | Temperature of 65±2℃ humidity of 20~30% for 96 hour at room temperature the shelving of 1 hour the test no abnormal adverse | |||
| 4.3低温保存Low-temperature preservation | Temperature of -25±2℃ for 96 hour, at room temperature theshelving of 1 hour the test no abnormal adverse | |||
| 4.4高温动作High-temperature operation | Temperature of 50℃ humidity of 20~30% work 16 hours at room temperature the shelving of 1 hour test no abnormal adverse | |||
| 4.5 低温动作 Low-temperature operation | Temperature of -20℃ work 16 hours at room temperature the shelving of 1 hour test no abnormal adverse | |||
| 4.6 耐湿性 Humidity Test | Temperature of 40±2℃ humidity of 90~95% for 96 hour at room temperature the shelving of 1 hour the test no abnormal adverse | |||
| 4.7 温/湿度循环试验 Compositetemperature/humi dity cyclic test | Refer to JIS C 60068-2-38 The loudspeaker shall be subjected to 10 continuous cycles the loud speaker shall be stored at standard atmospheric conditions for 6 H for recovery After the test should be able to meet the requirements of section 3.7 There shall be no distinct deformation in appearance. | |||
| 4.8 振动测试Vibration test | To be no interference in operation after vibration 10HZ~55HZ for 1 minute full amplitude 2mm for 8hours at X,Y,Z, three axises After the test should be able to meet the requirements of section 3.7 There shall be no distinct deformation in appearance. | |||
| 4.9 跌落测试Drop test | Packaging The speaker from height 60 CM Down to concrete floors 。in five directions Trial one cycles After the test should be able to meet the requirements of section 3.7。 | |||
| 五、磁束密度 Flux Density | ||||
| 5.1磁束密度Flux Density | / Gauss | |||
| 5.2磁 铁Magnet | Nd-Fe-B: Ferrite: | |||
| 5.3重 量 Weight | / G | |||
六、频 响 曲 线 图Frequency response curve
七、产 品 外 形 图 Ouline example
