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revision: b 2 / 1 7 /201 3 sheet 1 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b zero - height sisonic tm microphone the sp v 1 8 4 0 lr5h - b is a miniature, high - performance, low power, bottom port silicon microphone. using knowles proven high performance sisonic tm mems technology, the sp v 1 8 4 0 lr5h - b consists of an acoustic sensor, a low noise input buffer, and an output amplifier. these devices are suitable for applications such as cellphones, smart phones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable electronic devices where excellent wideband audio performance and rf immunity are required. features: ? small package ? flat frequency response ? low current ? maxrf protection ? zero - height mic tm ? ultra - stable performance ? standard smd reflow ? omnidirectional
revision: b 2 / 1 7 /201 4 sheet 2 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 1. absolute maximum ratings parameter absolute maximum rating units v dd to ground - 0. 5 , +5.0 v out to ground - 0.3, v dd + 0.3 v input current to any pin 5 ma temperature range - 40 to +100 c stresses exceeding these absolute maximum ratings may cause permanent damage to the device. these are stress ratings only. functional operat ion at these or any other conditions beyond those indicated under acoustic & electrical specifications is not implied . exposure beyond those indicated under acoustic & electrical specifications for extended periods may affect device re liability. 2. acoustic & electrical specifications test conditions: 23 2c, 5520 % r.h., v dd (min) v dd v dd (max), no load, unless otherwise indicated parameter symbol conditions min typ max units supply voltage 1 v dd 1.5 - 3.6 v supply current 1 i dd v dd = 1.8v 45 55 a v dd = 3.6v - 52 60 sensitivity 1 s 94 db spl @ 1 khz - 4 1 - 38 - 3 5 dbv/pa signal to noise ratio snr 94 db spl @ 1 khz, a - weighted - 62 .5 - db(a) total harmonic distortion thd 94 db spl @ 1 khz, s = typ, r load > 2 k ? dd = 3.6 v , r load > 2 k ? dd = 1.8v - 5 8 - db power supply rejection psr 100 mvpp square wave @ 217 hz, v dd = 1.8 v , a - weighted - - 89 - dbv(a) dc output v dd = 1.5v - 1. 1 0 - v output impedance z out @ 1 khz - 290 400 ? ? 1 100% tested
revision: b 2 / 1 7 /201 4 sheet 3 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 3. frequency response curve - 20 - 18 - 16 - 14 - 12 - 10 - 8 - 6 - 4 - 2 0 2 4 6 8 10 12 14 16 18 20 100 1,000 10,000 sensitivity (db) frequency (hz) typical free field response normalized to 1khz
revision: b 2 / 1 7 /201 4 sheet 4 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 4. interface circuit note: all ground pins must be connected to ground. capacitors near the microphone should not contain class 2 dielectrics. de tailed information on acoustic , mechanical , and system integration can be found in the latest sisonic tm design guide application note. ground v dd v dd output external gain = - r f /r s (set by user) v ref r f r s dotted section represents sisonic tm microphone .1 ? f
revision: b 2 / 1 7 /201 4 sheet 5 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 5. mec hanical specifications item dimension tolerance length (l) 2.75 0. 10 width (w) 1.85 0.10 height (h) 0.9 0 0.10 acoustic port (ap) ?0.25 0.05 pin # pin name type description 1 v dd power power supply 2 output signal output signal 3 ground power ground notes: pick area only extends to 0.25 mm of any edge or hole unless otherwise specified. dimensions are in millimeters unless otherwise specified. tolerance is 0.15mm unless otherwise specified
revision: b 2 / 1 7 /201 4 sheet 6 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 6. example land pattern 7. example solder stencil pattern notes: dimensions are in millimeters unless otherwise specified. detailed information on ap size considerations can be found in the latest sisonic tm design guide application note. further optimizations based on application should be performed.
revision: b 2 / 1 7 /201 4 sheet 7 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 8. packaging & marketing detail model number suffix reel diameter quantity per reel sp v1 84 0 lr5h - b - 8 13 5,900 alpha character a : s : knowles sisonic tm production e : knowles engineering samples p: knowles prototype samples jin number: unique job identification number for product traceability notes: dimensions are in millimeters unless otherwise specified . vacuum pickup only in the pick area indicated in mechanical specifications. tape & reel per eia - 481. label s applied directly to reel and external package. shelf life: twelve (12) months when devices are to be stored in factory supplied, unopened esd moisture sensitive bag under maximum environmental conditions of 30c, 70% r.h. pin 1
revision: b 2 / 1 7 /201 4 sheet 8 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 9. recommended reflow profile profile feature pb - free average ramp - up rate (t smax to t p ) 3c/second max. preheat ? temperature min (t s min ) ? temperature max (t smax ) ? time (t s min to t smax ) (t s ) 150c 200c 60 - 180 seconds time maintained above: ? temperature (t l ) ? time (t l ) 217c 60 - 150 seconds peak temperature (t p ) 260c time within 5c of actual peak temperature (t p ) 20 - 40 seconds ramp - down rate (t p to t smax ) 6c/second max time 25c to peak temperature 8 minutes max notes: based on ipc/jdec j - std - 020 revision c. all temperatures refer to topside of the package, measured on the package body surface. temperature time 25c to peak ramp - down ramp - up t smin t sm ax t l t p t l t p t s preheat time 25c
revision: b 2 / 1 7 /201 4 sheet 9 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 10. additional notes (a) msl (moisture sensitivity level) class 1 . (b) maximum of 3 reflow cycles is recommended . (c) in order to minimize device damage: ? do not board wash or clean after the reflow process. ? do not brush board with or without solvents after the reflow process. ? do not directly expose to ultrasonic processing, welding, or cleaning. ? do not insert any object in port hole of device at any time. ? do not apply over 30 psi of air pressure into the port hole. ? do not pull a vacuum over port hole of the mic rophone. ? do not apply a vacuum when repacking into sealed bags at a rate faster than 0.5 atm/sec. 11. materials statement meets the requirements of the european rohs directive 2011 / 6 5/ec as amended. meets the requirements of the industry standard iec 61249 - 2 - 21:2003 for halogenated substances and knowles green materials standards policy section on halogen - free. ozone depleting substances are not used in the product or the processes used to make the product, including compounds listed in annex a, b, and c o f the montreal protocol on substances that deplete the ozone layer.
revision: b 2 / 1 7 /201 4 sheet 10 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 12. reliability specifications test description thermal shock 100 cycles air - to - air thermal shock from - 40 o c to +12 5 o c with 15 minute soa k s . (iec 68 - 2 - 4) high temperature storage 1,000 hours at +10 5 o c environment (iec 68 - 2 - 2 test ba) low temperature storage 1,0 00 hours at - 40 o c environment (iec 68 - 2 - 2 test aa) high temperature bias 1,000 hours at +10 5 o c under bias (iec 68 - 2 - 2 test ba) low temperature bias 1,0 00 hours at - 40 o c under bias (iec 68 - 2 - 2 test aa) temperature / humidity bias 1,000 hours at + 85 o c/85% r.h. under bias. (jesd22 - a101a - b) vibration 4 cycles of 20 to 2,000 hz s inusoidal sweep with 20 g peak acceleration lasting 1 2 minutes in x, y, and z directions. ( mil - std - 883e, m ethod 2007.2 a) esd - hbm 3 discharges of 2 kv direct contact to i/o pins. (mil 883e, method 3015.7) esd - lid/gnd 3 discharges of 8 kv direct contact to lid while unit is grounded. (iec 61000 - 4 - 2) esd - mm 3 discharges of 200 v direct contact to i/o pins. (esd stm5.2) reflow 5 reflow cycles with peak temperature of + 260 o c mechanical shock 3 pulses of 10,000 g in the x, y, and z direction (iec 68 - 2 - 27, test ea) note: after reliability tests are performed, the sensitivity of the microphones shall not deviate more than 3 db from its initial value.
revision: b 2 / 1 7 /201 4 sheet 11 of 11 ?201 4 knowles electronics sp v 1 8 4 0 lr5h - b 13. specifications revisions revision specification changes date a initial release ( c10115478 ) 2 / 5 / 1 4 b clari fications in mechanical drawings ( c10115619 ) 2/ 17 /14 i nformation contained herein is subject to change without notice. it may be used by a party at their own discretion and risk. we do not guarantee any results or assume any liability in connection with its use. this publication is not to be taken as a license to operate under any exis ting patents.

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