2403-263-00092 Datasheet, PDF (15/25 Pages) Knowles Electronics – 8x15x1.5 HAC Receiver

Knowles Electronics
Specification: 8x15x1.5 HAC Receiver
Order No. 2403 263 00092
Revision: A1.5.1 / 04.29.11
2.8. Measured Parameters
1.Measure Setup
For the test on baffle, the test signal is cosine log sweep signal, from 10KHz to 100 Hz, 160
steps, used BK 4939 1/4” free field microphone, sn is 2624669.
For the test on BK3.2 high leak, the test signal is cosine log sweep signal, from 10KHz to 100
Hz, 160 steps, used BK 4195 Ear Simulator, sn is 2538591.
2. Sensitivity
Sensitivity is expressed in dB rel 1V/1Pa measured at input voltage of 0.566V using the
measurement setup according chapter 2.7.
3. Frequency response
Frequency response on baffle is measured according to the test setup in chapter 2.6 at input
voltage of 0.566V and checked against the tolerance window defined in chapter 2.1.
Frequency response on BK3.2 high leak is measured according to the test setup in chapter 2.7
at input voltage of 0.566V and checked against the tolerance window defined in chapter 2.2.
4. Total harmonic distortion (THD)
Is measured according to IEC 268-5 (2nd to 5th harmonics) and the test setup in chapter 2.7
at input voltage of 0.566V and checked against the tolerance window defined in chapter 2.2.
2.9. Measurement setup for Hearing Aid
Tests are conducted at Z (Axial) direction, Y and X (Radial) directions
Measurement Positions acc. to ANSI C63.19[4]
Knowles. 2011 All rights reserved.
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