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| 1/16 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. class-ab speaker amplifiers 1.9w+1.9w stereo speaker amplifier BD7836EFV description BD7836EFV is a class-ab stereo speaker amplifier, developed fo r note-book pc, desktop pc, portable devices and others. class-ab amplifier has no emi noise. power package htssop-b20 can realize high output power. low circuit current at active mode reduce consumption of batte ry. shutdown current is 0.1a typically, and pop noise level when shutdown turns on and off is very small. this device is suitable for the application that often changes mode between ?shutdown state? and ?active state?. features 1) high power 1.9w typ. (vdd=5v, r l =4 ? , thd+n=1%, stereo input) high power 1.2w typ. (vdd=5v, r l =8 ? , thd+n=1%, stereo input) 2) gain selectable by the external control (6,10,15.6,21.6db) 3) pop noise suppression circuitry 4) shutdown function (also mute function) [i sd =0.1a(typ.)] 5) protection circuitry (thermal shutdown, under voltage lockout) 6) power package with thermal pad htssop-b20 applications note-book pc, desktop pc, etc. absolute maximum ratings (ta=+25 ) parameter symbol ratings unit power supply voltage vddmax 7.0 v power dissipation pd 1 *1 w 3.2 *2 w storage temperature tstg -55 +150 input terminal input voltage range *3 vin -0.3 vdd+0.3 v control terminal input voltage range *4 vctl -0.3 vdd+0.3 v *1 70mm70mm1.6mm fr4 1-layer glass epoxy board(copper on top layer 0%) derating in done at 8mw/ for operating above ta=25 . there are thermal via on the board. *2 70mm70mm1.6mm fr4 4-layer glass epoxy board (copper on bottom 2 and 3 layer 100%) derating in done at 25.6mw/ for operating above ta=25 . there are thermal via on the board. *3 input terminal (lin +, lin-, rin+, rin-) *4 control terminal ( shutdown , gain0, gain1) operating conditions parameter symbol range unit power supply voltage vdd +4.5 +5.5 v temperature topr -40 +85 * these products aren?t designed for protection against radioactive rays. no.10077eat07
technical note 2/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. D D D ? D D ? ? ? ? ? D D D D S D D D ? ? ? ? technical note 3/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. lot no. (unit : mm) bd7836 technical note 4/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 5/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 6/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. D D technical note 7/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. ? ? ?? ? technical note 8/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 9/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 10/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 11/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 12/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. figure.1 figure.2 figure.3 figure.4 figure.5 figure.6 figure.7 figure.8 thd+n vs output power vdd-5v, rl=4 gv=10db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 output power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) thd+n vs output power vdd=5v, rl=4 gv=15.6db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 output power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) thd+n vs output power vdd=5v, rl=4 gv=21.6db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 output power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) thd+n vs frequency vdd=5v, rl=8, po=1w 400hz-30khz 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] 6db 10db 15.6db 21.6db thd+n vs frequency vdd=5v, rl=4, po=1.5w 400hz-30khz 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] 6db 10db 15.6db 21.6db thd+n vs frequency vdd=5v, rl=8, po=1w 400hz-30khz 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] po=0.25w po=0.5w po=1w thd+n vs frequency vdd=5v, rl=4 400hz-30khz 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] po=0.5w po=1w po=1.5w thd+n vs output power vdd=5v, rl=4 gv=6db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 output power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) technical note 13/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. figure.9 figure.10 figure.11 figure.12 figure.13 figure.14 figure.15 figure.16 thd+n vs output power vdd=5v, rl=8 gv=6db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 output power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) thd+n vs output power vdd=5v, rl=8 gv=10db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 outpupower [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) thd+n vs output power vdd-5v, rl=8 gv=15.6db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 outpu power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) thd+n vs output power vdd-5v, rl=8 gv=21.6db, f=1khz, 400hz-30khz 0.01 0.1 1 10 0.01 0.1 1 10 output power [w] thd+n [%] f=100hz (30khz lpf) f=1khz (400hz-30khz) f=10khz (80khz lpf) icc-vdd noload, no signal 0 1 2 3 4 5 6 7 8 9 10 0123456 vdd [v] icc [ma] isd vs vdd noload, no signal 0 0.1 0.2 0.3 0.4 0.5 0123456 vdd[v] icd [ua] gain vs frequency vdd=5v, rl=8 10hz-500khz 0 5 10 15 20 25 30 35 10 100 1k 10k 100k frequency [hz] gain [db] 6db 10db 15.6db 21.6db cross talk vs frequency vdd=5v, rl=8, gv=6db 80hz lpf -120 -100 -80 -60 -40 -20 0 10 100 1k 10k 100k frequency [hz] gain [db] left to right right to left technical note 14/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. figure.17 figure.18 figure.19 figure.20 figure.20 psrr vs frequency vdd-5v, rl=8 ,cbyp=0.47uf vripple=0.2vpp, 10hz-500khz bandpass -120 -100 -80 -60 -40 -20 0 10 100 1k 10k 100k frequency [hz] psrr [db] 6b 10b 15.6b 21.6b shutdown attenuation vs frequency vdd=5v rl=8, vin=1vrms(2vrms@btl), 10hz-500khz -120 -100 -80 -60 -40 -20 0 10 100 1k 10k 100k frequency [hz] shutdown attnuation [db] output power vs power dissipation vdd=5v, gv=6db, f=1khz 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 00.511.522.5 output power [w] power dissipation [w] rl=8 rl=4 rl=3 output power vs efficiency vdd=5v, gv=6db, f=1khz 0 10 20 30 40 50 60 70 80 90 100 00.511.522.5 outputpower [w] efficiency [%] rl=8 rl=4 rl=3 output power vs load resisitance vdd=5v, gv=6db, f=1khz 0 0.5 1 1.5 2 2.5 3 3.5 0 8 16 24 32 40 48 56 64 load resistance[] output power[%] thd=1 thd=10 technical note 15/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. technical note 16/16 BD7836EFV www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. (unit : mm) htssop-b20 s 0.08 s 11 20 110 (max 6.85 include burr) 6.50.1 (2.4) 4.40.1 0.325 6.40.2 (4.0) 0.17 +0.05 - 0.03 1.00.2 0.50.15 0.65 0.080.05 0.850.05 1.0max 0.24 +0.05 - 0.04 ? order quantity needs to be multiple of the minimum quantity. r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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