- 品牌：GOYO
- 灵敏度：85±3dBdB
- 声道数：多声道
- 型号：1115
- 加工定制：是
1. Scope
This document contains required environmental, electrical, acoustic, mechanical, package
and reliability test requirements.
2. Environmental Requirement
The transducer including all components and solder joints must be free from lead (Pb) and
other banned or restricted substances according to customer's requirements.
3. Electrical Requirments
3.1 Rated Impedance 8±15% ohms @2kHz, 1Vrms input
3.2 Rated Noise Power (in 1cc box) 0.5 Watts
3.3 Short Term Maximum Power (in 1cc box) 0.7 Watts
4. Acoustical Requirments
4.1 Sound Pressure Level 87 +/-3dB @1v/10cm at flat range
4.2 Bass Resonance Frequency in free air 600±20%Hz, 1v input
4.3 Rated Frequency Range 200 - 10kHz
Frequency Response See Figure 1
4.4 THD <10% @ 1KHz, 1v input
4.5 Rub & Buzz
The input power shall be set at rated noise power with specified back cavity. Using an
audio oscillator sweep from 200 to 3000Hz . There shall be no buzzes,rattles, nor spurious
noises.
5. Polarity Requirments
5.1 Polarity
When a DC source′s "+" polarity is attached to the "Signal"— marked in "+"and the
"-" polarity is attached the "GND",the membrane will move forward.
5.2 Magnetic Polarity Top of the magnet is the north pole.