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| 1/28 www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. sound processors for car audios general-purpose electronic volume with built-in advanced switch BD3460FS,bd3461fs,bd3464fv,bd3465fv description BD3460FS, bd3461fs, bd3464fv, bd3465fv is 4ch / 6ch elec tronic volume which has audio efficiency of the industry best level. it has outside sound mixing function (with volume) (bd3461fs, bd3465fv) in favorite channel to mixing of the portable telephone and car navigation s guide sound. also, which has ground isolation amplifier (BD3460FS, bd3461fs) when connecting with the outside voice inputs su ch as portable audio and car navigation. it is lineup and possible to be chosen to the use by it. also, rohm has the volume switching shock sound prevention technique ?advanced switch?. therefore, it supports t he construct of the high quality car audio space by the simple control. features 1) reduce switching noise of volume by using adv anced switch circuit. (possible to control all steps) 2) low distortion (0.0004% typ), low noise (1.6 vrms) 3) mixing for external sound monaural 3ch. it is possibl e that is mixed to front/rear/sub output (bd3461fs) front/rear output (bd3465fv) lch/rch independently. 4) built-in 3ch att for external sound mixing that can be controlled independently. (bd3461fs, bd3465fv) 5) built-in buffered stereo ground isolation amplifier inputs, ideal for external input. (BD3460FS, bd3461fs) 6) bi-cmos process is suitable for the design of low current and low energy. and it provides more quality for small scale regulator and heat in a set. 7) package is ssop-a24,ssop-b20. putting input-termina ls together and output-terminals together can make pcb layout easier and can makes area of pcb smaller. 8) it is possible to control by 3.3v / 5v for i 2 c bus. applications it is the optimal for the car audio. besides, it is possible to use for the car navigation, audio equipment of mini compo, micr o compo, dvd, tv etc with all kinds. line up matrix function BD3460FS bd3461fs bd3464fv bd3465fv volume 6ch 6ch 4ch 4ch input for external sound mixing - - gnd isolation amplifier - - package ssop-a24 ssop-a2 4 ssop-b20 ssop-b20 no.11085ebt09
technical note 2/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? technical note 3/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? ? ? ? ? ? ? ? ? technical note 4/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. 1 10 100 -40 -30 -20 -10 0 10 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 10 100 1k 10k 100k 1000k 0 10 20 30 40 50 0246810 technical note 5/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. 0.0 0.5 1.0 1.5 2.0 2.5 100 1000 10000 100000 technical note 6/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. i 2 c bus logic 100k 22 21 20 19 18 17 16 15 14 13 3 4 5 6 7 8 9 10 11 12 100k 100k 24 23 1 2 vcc/2 100k 100k 100k vcc gnd 6ch volume +23db-79b/1db step,- ?advanced switch circuit volume volume volume volume volume volume 100k 100k buffered gnd iso amp buffered gnd iso amp 100k 100k technical note 7/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. i 2 c bus logic 100k 22 21 20 19 18 17 16 15 14 13 3 4 5 6 7 8 9 10 11 12 100k 100k 100k 100k 24 23 1 2 vcc/2 100k 100k 100k buffered gnd iso amp vcc gnd 100k 100k 100k independent control 6ch volume +23db-79b/1db step,- ?advanced switch circuit mixing att 0db-32db/8db step, -32db-64db/16db step,- technical note 8/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. i 2 c bus logic 100k 18 17 16 15 14 13 12 11 3 4 5 6 7 8 9 10 100k 100k volume volume 20 19 1 2 volume 100k vcc vcc/2 gnd volume 4ch volume +23db-79b/1db step,- ?advanced switch circuit technical note 9/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. i 2 c bus logic 100k 18 17 16 15 14 13 12 11 3 4 5 6 7 8 9 10 100k 100k volume 4ch volume +23db-79b/1db step,- ?advanced switch circuit mixing att +0db-32db/8db step, -32db-64db/16db step,- 20 19 1 2 100k vcc 100k 100k 100k vcc/2 gnd independent control volume volume volume mixing att mixing att mixing att technical note 10/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. buf 4us hd;sta 2us hd;dat 1us low 3us high 1us su;dat 1us su;sto 2us scl clock frequency250khz scl sda sda s scl t low t r t hd;dat p t hd;sta t high t buf t f t su;dat t su;sta t su;sto t sp t hd;sta sr p technical note 11/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ???? technical note 12/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. technical note 13/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. - technical note 14/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. select address 33, 34, 35(hex) gain msb ext attenuation lsb d7 d6 d5 d4 d3 d2 d1 d0 0db 0 0 0 0 0 0 0 0 -8db 0 0 1 -16db 0 1 0 -24db 0 1 1 -32db 1 0 0 -48db 1 0 1 -64db 1 1 0 - technical note 15/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. - technical note 16/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. vcc outs2 inr1 10 0.1 4.7 outs1 outr2 outr1 outf2 outf1 sda scl cs 4.7 4.7 4.7 4.7 1 1 1 4.7 4.7 10 10 gnd fil 2.2k 4.7 1 1 1 10 10 inf1 inf2 inr2 ins1 ins2 diffout2 pin2 nin2 diffout1 nin1 pin1 10 i 2 c bus logic 100k 22 21 20 19 18 17 16 15 14 13 3 4 5 6 7 8 9 10 11 12 100k 100k 24 23 1 2 vcc/2 100k 100k 100k vcc gnd 6ch volume +23db-79b /1db step,- ?advanced switch circuit 100k 100k buffered gnd iso amp buffered gnd iso amp 100k 100k technical note 17/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. vcc outs2 inr1 10 0.1 4.7 outs1 outr2 outr1 outf2 outf1 sda scl cs 4.7 4.7 4.7 4.7 1 1 1 10 4.7 10 10 gnd fil 2.2k 4.7 1 1 1 10 10 inf1 inf2 inr2 ins1 ins2 ext3 ext1 ext2 diffout nin pin 10 i 2 c bus logic 100k 22 21 20 19 18 17 16 15 14 13 3 4 5 6 7 8 9 10 11 12 100k 100k 100k 100k 24 23 1 2 vcc/2 100k 100k 100k buffered gnd iso amp vcc gnd 100k 100k 100k independent control 6ch volume +23db-79b/1db step,- ?advanced switch circuit mixing att 0db-32db/8db step, -32db-64db/16db step,- technical note 18/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. vcc inr1 10 0.1 4.7 outr2 outr1 outf2 outf1 sda scl cs 4.7 4.7 4.7 1 gnd fil 2.2k 1 1 1 inf1 inf2 inr2 10 i 2 c bus logic 100k 18 17 16 15 14 13 12 11 3 4 5 6 7 8 9 10 100k 100k volume volume 20 19 1 2 volume 100k vcc vcc/2 gnd volume 4ch volume +23db-79b/1db step,- ?advanced switch circuit technical note 19/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. vcc inr1 10 0.1 4.7 outr2 outr1 outf2 outf1 sda scl cs 4.7 4.7 4.7 1 gnd fil 2.2k 1 1 1 inf1 inf2 inr2 ext3 ext1 ext2 1 1 1 10 i 2 c bus logic 100k 18 17 16 15 14 13 12 11 3 4 5 6 7 8 9 10 100k 100k 4ch volume +23db-79b/1db step,- ?advanced switch circuit mixing att +0db-32db/8db step, -32db-64db/16db step,- 20 19 1 2 100k vcc 100k 100k 100k vcc/2 gnd independent control technical note 20/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? - technical note 21/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. terminal name terminal voltage equivalent circuit terminal description vcc 8.5 power supply terminal. scl vcc gnd 1.65v vcc gnd 1.65v vcc gnd 50 k 50 k technical note 22/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? ? ? ? ? technical note 23/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. 4. frequency characteristic at large output level high slew-rate amplifiers are used for high quality sound. this ic is corresponded to ?192khz sampling on dvd-audio highest quality?. output level is ?2vrms, 192khz flat(typ)?. (see the below graph (reference)). 5. oscillation countermeasure fo r gnd isolation amplifier outputs using higher capacitor than 10pf at gnd isolation amplifier outputs (difout1, difout2, difout) may cause oscillation. as oscillation counterm easure, insert resistor in series to terminal di rectly as below. capacitance resistor in series to terminal directly c ? ? technical note 24/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. fader f1 28h fader f2 29h group 2 technical note 25/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. :?:?:?:?::w:?:? ?(4f :?:?:?:?::w:?:? ?(4f i2c bus b]b?b?b?btb?b?btb_b~b|(4f ::?:?:?:?::w:a:?:w:?:?:?:? :w ::?:?:?:?::w:?:?:w:?:?:?:? :w ::?:?:?:?::w:?:?:w:?:?:?:? slave select data 80 28 80 80 28 7f 80 28 81 fader f1 changing time i 2 c bus advanced switch timing ::?:?:?:?::w:?:?:w:?:?:?:? :w ::?:?:?:?::w:?:?:w:?:?:?:?:? :w ::?:?:?:?::w:?:?:w:?:?:?:?:? fader f1 changing time the data which have become invalid as a result fader f1 :w only the last of the data transmitted during the fader f1 change is effective. :?:?:w :?:?:w :?:?:w :?:?:w :?:?:w :?:?:w fader r 1 c h a n g in g t im e i 2 c bus advanced switch timing :?:?:?:?::w:?:?:w:?:?:?:? :?:?:?:?::w:?:?:w:?:?:? refresh data :?:?:w :?:?:w :?:?:w ::?:?:?:?::w:?:?:w:?:?:?:? :w fader f1 changing time technical note 26/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. technical note 27/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? ? technical note 28/28 BD3460FS,bd3461fs,bd3464fv,bd3465fv www.rohm.com 2011.04 - rev.b ? 2010 rohm co., ltd. all rights reserved. ? order quantity needs to be multiple of the minimum quantity. r1120 a www.rohm.com ? 2011 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 produc ts. 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, redundancy, 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, aerospace 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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