portable electronics aap661x ? copyright 2010 - asic advant age, inc. C aads000 22 / aa 661b - preliminary - rev. 4 - august 2010 1 / 6 aap661x preliminary dat a electret microphone (ecm) pre-amplifier w/ programmable filter description the aap661x ecm pre amplifiers were designed for the recent exclusive use of plantronics, inc. of santa cruz, ca for high end audio headset microphone applications. the aap661x is now available for general sale to the audio microphone marketplace. the performance of this pre-amplifier is such that it enables design of enhanced end system products, due to its various gain options, ultra-low noise and other high performance features. the aap661x ecm pre-amplifier provides a number of performance advantages over prior ecm pre-amplifier products. key features include ultra low input capacitance (0.35pf typical) and quiescent current (250 a typical), with ultra low equivalent input noise (1.9 v rms to 2.5 v rms, a- weighted, with the microphone capacitor short circuited, gain version de pendent). additionally, the pre-amplifier sports a programmable high pass filter and dc output operation dow n to 1.23v. other key features include thd performance below 0.5% maximum, output impedance of 25 ? typical, with exceptionally high tolerance to rf interference and esd tolerance (8kv). the aap661x is offered with two gain options, 16db and 19db. packaging is bumped chip scale smd configuration with a size of 930 m x 580 m and an overall thickness of 320 m (including solder bumps). optimum for small diameter microphones, the die is rohs compliant, with lead free solder pads of 118 m diameter. packing styles available are 2 x 2 waffle pack or tape and reel. features selectable gain configurations16db and 19db ultra low input capacitance0.35pf typ. ultra low equivalent input noise performance 1.9 v rms to 2.5 v rms, cmic = sc, varies with gain 8kv esd tolerance high rfi tolerance, low output impedance (25 ? ) excellent thd performance (< 0.5%) ultra low quiescent current (250 a typical) chip-scale smd bumped packaging (930 m x 580 m, 320 m thick) pin configuration: 5-lead micro smd aap661x shown f rom t he t op and bot t om. downloaded from: http:///
portable electronics aap661x ? copyright 2010 - asic advant age, inc. C aads000 22 / aa 661b - preliminary - rev. 4 - august 2010 2 / 6 functional block diagram maximum ratings parameter symbol parameters units conditions min. max. applied voltage (all pins) -0.5 2.5 v max voltage between pin and gnd supply current idd 2 ma esd v esd,out 8000 v out terminal v esd 2000 other terminals operating ambient temp -40 85 oc storage temp range -40 100 oc performance operating temp range -5 55 oc electrical characteristics unless otherwise stated: t=25oc, vdd=1.8v, v in =-40dbvrms, r l =2.2k ? , c c =100nf, c mic =short parameter symbol parameters units conditions min typ max operating supply supply voltage vdd 1.6 1.8 5.5 v r l =3.3k ? operating output voltage v op 1.18 1.23 1.3 v supply current idd 250 a note 1 note 1: idd = (vdd C v op ) / r l downloaded from: http:///
portable electronics aap661x ? copyright 2010 - asic advant age, inc. C aads000 22 / aa 661b - preliminary - rev. 4 - august 2010 3 / 6 psrr 60 db ac characteristics transfer function (aap661a) tf 14 15 16 db transfer function (aap661b) tf 18.5 19 19.5 db gain variation over supply av 0.1 db 1.6v < vdd < 3.5v gain variation over temp av 0.2 db -5oc < t < 55 oc input referred noise e n 2 2.5 v rms input shorted to gnd, a -wei g hted values overload margin v outmax 825 mvpp 5% distortion, tf=11db lf cutoff f low 200 hz hf cutoff f high 20 85 khz total harmonic distortion thd 0.4 % vout=-23dbvrms input capacitance c in 0.35 pf input impedance z in 10 g ? output impedance z out 25 70 ? input impedance of fb (aap661a) z in fb 17 k ? input impedance of fb (aap661b) z in fb 12.1 k ? application use the following equation to calculate the capacitor (c c ) value to program the low frequency cutoff of the high-pass filter: example 1: for a cutoff of f = 100hz using the aap661a c c = 1 . = 1 . = 94nf 2 * z in fb * f 2 * 17k * 100 example 2: for a cutoff of f = 300hz using the aap661b c c = 1 . = 1 . = 44nf 2 * z in fb * f 2 * 12.1k * 300 downloaded from: http:///
portable electronics aap661x ? copyright 2010 - asic advant age, inc. C aads000 22 / aa 661b - preliminary - rev. 4 - august 2010 4 / 6 ordering ? pn ? subgroup ? description ? temp. ? range ? package ? packing ? type ? packing ? qty ? aap661a ? s \ m5a \ g \ lf \ w ? microphone ? ecm ? interface ? pre \ amplifier, ? 16db ? gain ? s ?\? special ? \ 5c ? to ? +55c ? 5 \ pin ? micro ? smd ? waffle \ pack ? 400 ? aap661a ? s \ m5a \ g \ lf \ tr ? microphone ? ecm ? interface ? pre \ amplifier, ? 16db ? gain ? s ?\? special ? \ 5c ? to ? +55c ? 5 \ pin ? micro ? smd ? t&r ? 3500 ? aap661b ? s \ m5a \ g \ lf \ w ? microphone ? ecm ? interface ? pre \ amplifier, ? 19db ? gain ? s ?\? special ? \ 5c ? to ? +55c ? 5 \ pin ? micro ? smd ? waffle \ pack ? 400 ? aap661b ? s \ m5a \ g \ lf \ tr ? microphone ? ecm ? interface ? pre \ amplifier, ? 19db ? gain ? s ?\? special ? \ 5c ? to ? +55c ? 5 \ pin ? micro ? smd ? t&r ? 3500 ? test suggestions a suitable input amplitude is -44dbv (6.301 mvrms). wi th a gain of 15db, this will give -29dbv out (35.48 mvrms). with a gain of 19db, this will give -25dbv out (56.23 mvrms). with the input shorted to ground, the dc voltage at t he fb pin should be about 600mv, and the dc voltage at the hp pin should be about 800mv. due to the high impedances, a dvm with 10 m ? input resistance minimum should be used with the negative input grounded to the lab bench. ordering information downloaded from: http:///
portable electronics aap661x ? copyright 2010 - asic advant age, inc. C aads000 22 / aa 661b - preliminary - rev. 4 - august 2010 5 / 6 package dimensions and marking top view, bump-side down side view bottom view, bump-side up downloaded from: http:///
portable electronics aap661x ? copyright 2010 - asic advant age, inc. C aads000 22 / aa 661b - preliminary - rev. 4 - august 2010 6 / 6 the following is a brief overview of certai n terms and conditions of sale of produc t. for a full and complete copy of all the general terms and conditions of sale, visit our webpage http://www.asicadvantage.com/terms.htm. limited warranty the product is warranted that it will conform to the applic able specifications and be free of defects for one year. buyer is responsible for selection of, use of and resu lts obtained from use of the product. buyer indemnifies and holds asic advantage, inc. harmless for claims arising out of the application of asic advantage, inc.s products to buyers designs. applications described herein or in any catalogs, advertisements or other documents are for illustrative purposes only. critical applications products are not authorized for use in critical applications including aerospac e and life support applications. use of products in these applications is fully at the risk of the buyer. critical app lications include any system or device whose failure to perform can result in significant injury to the user. lethal voltages lethal voltages could be present in the applications. please comply with all applicable safety regulations. intellectual property rights and proprietary data asic advantage, inc. retains all intellectual property right s in the products. sale of products does not confer on buyer any license to the intellectual property. asic advant age, inc. reserves the right to make changes without notice to the products at any time. buyer agrees not to us e or disclose asic advantage inc.s proprietary information without written consent. trademarks and patents - in-plug ? is a registered trademark of asic advantage, inc. - aais modified snubber network is patented under the us patent # 6,233,165 protection for custom solutions when aai accepts to design and manufacture products to bu yers designs or specifications, buyer has certain obligations to provide defense in a suit or proceeding clai ming infringement of a patent, copyright or trademark or for misappropriation of use of any trade secrets or for unfair competition. compliance with laws buyer agrees that at all times it will comply with all applicable federal, state, municipal, and local laws, orders and regulations. buyer agrees to comply with all applicable re strictions on exports and re-e xports including obtaining any required u.s. government license, author ization, or approval. buyer shall pay any duties, levies, taxes, brokerage fees, or customs fees imposed on the products. title and delivery all shipments of goods shall be delivered exworks, sunnyvale, ca, u.s.a. title in the goods shall not pass to buyer until asic advantage, inc. has received in full all amounts owed by buyer. latest datasheet updates for the latest datasheet updates, visit our web page: http://www.asicadvantage.com. worldwide representatives to access aais list of worldwide representativ es, visit our web page http://www.asicadvantage.com. copyrights copyrights and all other proprietary right s in the content rests with asic adv antage inc. (aai) or its licensors. all rights in the content not expressly gr anted herein are reserved. except as ot herwise provided, the content published on this document may be reproduced or distributed in unm odified form for personal non-commercial use only. any other use of the content, including without limitation distribution, reproduction, modification, display or transmission without the prior written consent of aai is strictly prohibited. all copyright and other proprietary notices shall be retained on all reproductions. asic advantage inc . 1290-b reamwood ave, sunnyvale california 94089, usa tel: (1) 408-541-8686 fax: (1) 408-541-8675 website: http://www.asicadvantage.com downloaded from: http:///
|
