[0 i 1.6 = 299) MAX | MUM D16.385+0.125 [B0.645+0.005] ~ h 22.12+0.10 0.87140.004) . MR-28406- 146 SHT I.1 BETWEEN BLACK HOUSING. -ve LEAD AND FRONT ORIENTATION OF HOLE PATTERN NOT FIXED 20245 [7.960.201] RED BLACK ve Yoove <7] _V ante OUTPUT Revision C.0. # Implementation Date RELEASE LEVEL REVISION DIMENSIONS IN MILLIMETERS CINCHES] as ne Released A SCALE: I : I DR. BY DATE KNOWLES ELECTRONICS Mw_3-31 -06 DO NOT SCALE DRAWING ch or are ITASCA, ILLINOIS U.S.A. TTP = WATERPROOF MICROPHONE] MR-28406-146 [% 3-31-06 APP, BY DATE OUTLINE DRAWING SHT I.1 AB 4-3-06 KETTIASIZE. FRM Rev: B NO DAMPING SHEET 2.1 % = -35dB = -AQ S 45 5 : Oh -50 7 ist a fs == 799 ian as <oO - s n= - oo s Ss -60 Le eee eee Ib cE dees soy =3 65 ES -70 ae -75 2 3 4 5 6 7 8 9 2 3 4 5 6 7 9 100 1000 10000 FREQUENCY IN HERTZ SENSITIVITY DEVICE CONFORMITY FREQUENCY MIN. NOM. MAX. RANGE OF DEVIATION FROM_IKHz 100 --- -61.5 --- -4.0 +1.0 1000 -65.0 -61.0 -58.0 --- --- W400 --- - 46.0 -- +80 +20.0 NOTES: |. CASE OF MICROPHONE CONNECTED TO NEGATIVE LEAD. 2. BELLOWS HOUSING INSULATED FROM MICROPHONE. 3. MICROPHONE TO BE FUNCTIONAL WITH 20 VDC SUPPLY. 4. CONFORMS TO REQUIREMENTS SHOWN ON ELECTRET MICROPHONE ENVIRONMENTAL QUALIFICATION TEST, BT-1759 SHEET 2.2. 5. MEASUREMENTS MADE WITH UNIT UNDER TEST, SEALED TO AN IEC 318 COUPLER (BRUEL & KJAER PART NO. 4153) AFTER A MINIMUM OF 10 MINUTES AT 20M IMMERSION IN WATER AND 43 PSI (GAGE) OR WATER APPLIED TO FACE OF SPEAKER. 6. INDIVIDUAL SPECIFICATIONS: LOAD RESISTANCE OUTPUT IMPEDANCE AMPLIFIER | SENSITIVITY ON OUTPUT FOR OHMS CURRENT CHANGE ON "A" WEIGHTED NOISE slsuenenr | SUV" Dna | ipo | Meg SINghT PY M OHMS V MIN. | NOM. | MAX. uA MAX -9vDC 10000 .3 2000 3500 6000 50 3 dB MAX. 30 RED |. 3V tye BLACK -ve WHITE OUTPUT Revision C.0. # Implementation Date RELEASE LEVEL REVISION Released A A MIO101069 3-31-06 WHEN TEST LIMITS ARE USED TO ESTABLISH INCOMING INSPECTION ACCEPTANCE/RE JECTION | DR. BY DATE CRITERIA, CORRELATION OF TEST EQUIPMENT WITH KNOWLES I$ ALSO REQUIRED FOR ELIMINATION OF EQUIPMENT AND TEST METHOD VARIATION MMM 3-31-06 KNOWLES ELECTRONICS orn ITASCA, ILLINOIS U.S.A. mm: WATERPROOF MICROPHONE | MR-28406-146 [86 3-31-06 APP. BY DATE PERFORMANCE SPECIFICATION SHT 2.1 AB 4-3-06