詳細(xì)信息
1-1 SCOPE | This specification is a typical speaker unit for telephone hand set |
1-2 DIMENSIONS | As shown in fig (1) |
1-3 NET WEIGHT | APPROX. 1.2 grams |
1-4 OPERATING TEMPERATURE | -30℃ to +70℃ |
1-5 STORAGE TEMPERATURE | -40℃ to +85℃ |
2.ELECTR0ACOUSTIC CHARACTERISTICS | |
2-1 TEST SET UP | Measuring conditions and procedures shown in fig(2) |
2-2 IMPEDANCE | 8Ω±15% ohm ( at 1 KHz, 0.9Vrms ) |
2-3 SOUND PRESSURE LEVEL | 90dB ±3dB SPL /1W/10mm at 800、1000、1200、1500Hz .AVE |
2-4 FREQUENCY RESPONSE | 800±20%HZ |
2-5 INPUT POWER (NOM./MAX.) | 1W/1.2W |
2-6 AUDIBLE NOISE | Must be free audible noise (buzzes and rattles) (200 ~ 10KHz frequency range ,input level up to 2.83Vrms) |
2-7 DISTORTION | Less than 10% at 1KHz 1W |