4737-263-T1

SKU: 4737-263-T1. Category: Microphone

Description

1. Electrical specifications

Test conditions :Vdd=1.8V, Fclk= 2.4mhz, L/R ground, 23±2℃, 55±10%R.H. , unless otherwise specified.

2. Application circuit

3.frequnency Response

4. Measurement system:

5. Reliability test

All tests shall be carried out in the same batch of tests in the sequence listed. The sensitivity should be within ±3dB of the initial sensitivity after 2 hours of restoration at 20℃

Temperature test: Sensitivity should be within ±3 dB from initial value after 200 hours of exposure at 60°C. After 200 hours of exposure at -25°C, the sensitivity should be within ±3 dB of the initial value.

Humidity test: After exposure for 200 hours at 60±3℃ and relative humidity of 90~95%, the sensitivity should be within the initial value ±3 dB.

Temperature cycling test: Sensitivity should be within the initial value ±3 dB after 15 cycles of exposure at -25°C for 30 minutes, 20°C for 10 minutes, 60°C for 30 minutes, and 20°C for 10 minutes.

Vibration test: In order to ensure that the vibration after use is not affected, 10 Hz ~ 50 Hz test is carried out for 1 minute at the full amplitude of 1.52 mm and for 2 hours at 3 large angles

Drop test: In order to ensure that the test microphone in the package falls off and does not affect its use, the 3 sides of the package are dropped from a height of 1.5 meters on the cement floor for 12 cycles

Electrostatic protection: The test microphone must discharge between each ESD exposure point (contact point :±6KV, air :±8KV)

6. Reflux profile (to ensure maximum reflux conditions):

Reflow soldering is recommended, reflow soldering temperature <=260℃(peak temperature lasts 30 seconds)