产品描述（超薄喇叭）
产品名称：FDS-2209040R8w
尺寸：22x9mm
额定功率：0.5 W
最大功率：1.0W
阻抗：8±15% ?
重量：1.5g
共振频率：20KHz?
灵敏度/声压：87± 3 dB
谐振频率：600±20%Hz
频响曲线： As shown in fig(2)?
1.SPECIFICATION?HDK-220908ZA-1W1 (RoHS)
| ITEM | SPECIFICATIONS | ||
| 01 | Type | Dynamic speaker | |
| 02 | Dimension | External diameter 22*9?mm | |
| 03 | Rated Input Power | 0.5W?(Long Time) | |
| 04 | Max. Input Power | 1.0W (Short Time) | |
| 05 | Impedance | 8?ohm ± 15% at?1500Hz. | |
| 06 | Resonance Frequency (Fo) | 900Hz ± 20% at ?Fo, 1V | |
| 07 | Sensitivity (S.P.L.) | 87dB(0.1W/0.1m) ± 3 dB | at AVE?1.2??2.5KHz. |
| 90dB (0.5W /?0.1m) ± 3 dB | |||
| 08 | Frequency Range | Fo ? 20KHz | |
| 09 | Total Harmonics Distortion | Max?8?% at 1?KHz,0.5W. | |
| 10 | Voice Coil | Diameter?11*4?mm | |
| 11 | Magnet | Rare earth permanent (Nd-Fe-B) magnet Φ10.4*3.45*1.2mm | |
| 12 | Weight | 2.0g ± 5%g | |
| 13 | Appearance | Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc. | |
| 14 | Operation Test | Must be normal at program source ??0.5W | |
| 15 | Buzz, Rattle, etc. | Should not be audible at 2.0V sine Wave between Fo to?20KHz | |
| 16 | Polarity | When positive voltage is applied to the terminal marked (+), diaphragm should move to the front. | |
| 17 | Terminal Strength | Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. | |
| 18 | Temperature | Operating temperature: -20℃?to +60℃ Storage ?temperature: -30℃?to +70℃ |
1.?MEASURING METHOD
2-1 .Test Condition
STANDARD
Temperature : 15 ~ 35℃
Relative humidity : 45% ~ 85%,
Atmospheric pressure : 860mbar to 1060mbar.?
JUDGEMENT
Temperature : 20±3℃
Relative humidity : 60% ~ 70%,
Atmospheric pressure : 860mbar to 1060mbar
?
2-2 .?Standard Test Fixture
1.Input Power : 0.8W (?2.53V )
2.Zero Level : -dB
3.Mode : SPEAKER
4.potentiometer Range : 50dB
5.Sweep Time : 0.5sec
?
2-3. Frequency Response Curve
?
?
2.?RELIABLITY TESTS
| Items. | Specifications | |
| 01 | High temp. Test | Keep 96 hours at +70℃±3℃?and leave 3 hours in normal temperature and then check |
| 02 | Low temp. Test | Keep 96 hours at -30℃±3℃?and leave 3 hours in normal temperature and then check |
| 03 | Humidity test | Keep 96 hours at + 60℃±3℃?relative humidity 95% and leave 3 hours in normal temperature and then checked. |
| 04 | Temp./Humidity cycle | The part shall be subjected 5?cycles. One cycle shall be 12?hours and consist of; ? |
| 05 | Thermal cycle test. | Low temperature: -30℃±3℃, temperature:+70℃±3℃, cycle: 1 hour/cycle each, and then keep 5?cycles in a room. |
| 06 | Vibration | 10~200~10Hz sin-wave sweep 15min. 5G(constant) X,Y, Z?3 direction. 2 hours each, total 6 hours. |
| 07 | Fix drop test | Fix on jig. Then drop from 152cm height to the concrete floor X,y, z 6 direction. 5 times each, total 30 times. |
| 08 | Free?drop test | Free drop from 100cm height to the concrete floor X,y, z 6 direction. 1?times each, total 6?times. |
| 09 | Rated Power?test | Rated Power white noise is applied for 96 hours |
| 10 | Max Power test | Max power 1 min on ??2?min off 10 cycles. |
| 11 | Terminal strength test | Capable of withstand 1kg load for 30 seconds without resulting in any damage or rejection. |
| Criterion:? After these test , the change of S.P.L?shall be within ±3 dB?. |
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