microphone ROSM-1542-C3310-R j.d. b.r. r.w. 2/13/2008 - designed by checked by approved by drawn date 1 / 1 edition sheet date 2/12/2008 date 2/13/2008 date 2/13/2008 unless otherwise specified: dimensions are in millimeters, tolerances are 0.5 and angles are 3. ROSM-1542-C3310-R.idw a3 size power power gnd gnd output mems mic interfacing circuit (note: customer defined) c rin revision history ltr description date approved - released from engineering 2/12/2008 specifications parameters values units directivity omni - sensitivty -42 3 db standard operating voltage 2.1 vdc max operating voltage 3.6 vdc current consumption (max) 200 a impedance (max) 100 ohm signal to noise ratio (min.) 55 dba internal capacitor 33 & 10 pf frequency range 100 ~ 7,000 hz operating temperature -40 ~ +100 c storage temperature -40 ~ +100 c this document contains data proprietary to projects unlimited, inc. any use or reproduction, in any form, without prior written permission of projects unlimited, inc. is prohibited. ?2003, projects unlimited inc. notes: 1. all dimensions are in millimeters. 2. specifications subject to change or withdrawl without notice. 3. this part is rohs 2002/95/ec compliant. 4. maximum of 120db input spl (for less than 0.5% distortion). 5. output signal @ 94db spl, 1khz (-45db/5.65mv,-40db/10.04mv). 6. 1db sensitivity variation over operating range (1.5-3.6v). 4.5 4.5 4.3 3 1.35 0.3 1.2 1.5 1 2.9 2.4 4.3 n 1 sound hole power ground output 1.5 0.05 0.05
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