A.Introduction
The MEMS Microphones are integrated with specialized pre-amplification ASIC to provide high sensitivity, high SNR output from a capacitive audio sensor. It’s packaged fro surface mounting and high temperature re-flow assembly.
B.Temperature Range
1. Operating Temperature Range: -40℃ to +100℃
2. Storage Temperature Range: -40℃ to +125℃
C.Technical Specification(test conditions:+25+/-2℃， 45%~65%R.H)
Items | Min. | Nom. | Max. | Unit |
1 | Directivity | Omni Directional |
2 | Operating Voltage | 1.5 | -- | 3.3 | V |
3 | Sensitivity (F=1KHz) | -45 | -42 | -39 | dB |
4 | Current consumption | -- | -- | 200 | uA |
5 | Output impedance | -- | -- | 100 | Ω |
6 | Signal to noise ratio (F=1KHz) | -- | 58 | -- | dB |
7 | Maximum input sound level | 120 | dB SPL |
8 | Total Harmonic Distortion @ 104dB | -- | -- | 1 | % |
9 | Total Harmonic Distortion @ 114dB | -- | -- | 10 | % |
10 | Sensitivity variation over operating voltage range (1.5 to 3.3 V) | -0.5 | 0 | 0.5 | dB |
D.Frequency Response Curve:
E.Mechanical Layout and Dimensions:
Item | Symbol | Dim. | Tol. | Units |
Length | A | 3.76 | ±0.10 | mm |
Width | B | 2.95 | ±0.10 | mm |
Height | H | 1.10 | ±0.10 | mm |
Metal Cap Width | C | 2.76 | ±0.10 | mm |
Metal Cap Length | D | 3.57 | ±0.10 | mm |
Terminal pad pitch1 | E | 1.70 | ±0.10 | mm |
Terminal pad pitch2 | F | 2.46 | ±0.10 | mm |
Pad to Unit Edge1 | G | 0.65 | ±0.10 | mm |
Pad to Unit Edge2 | I | 0.65 | ±0.10 | mm |
Terminal pad Open | P | 0.80 | ±0.10 | mm |
Acoustic port hole | AP | 0.50 | ±0.10 | mm |
