1/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. sound processors for home theater system 7.1ch sound processor BD3452KS description BD3452KS is a sound processor where the functions includi ng input selector, 8ch volume and gain amp required for applications such as av receivers, home theater systems and mini-comp onent systems are integrat ed into a single chip. adopting the bicmos process achieves low distortion, low noise and a wide dynamic range. features 1) dynamic range: 132db (vol=mute, ihf-a) 2) independent 8 channels for master volume (0 to -99 db, mute 1db/step) 3) supporting 2nd room entertainment 4) low current consumption design achieved by adopting the bicmos process 5) built-in output gain amp useful for adjusti ng output signal voltages (0 to 15db, 1db/step) 6) bd3841fs (9-input selector), bd3843fs (6-input sele ctor) and bus are common to be controlled simultaneously. 7) built-in 2ch output port 8) 2-wire serial control (for both 3.3v and 5v) applications av receivers, home theater s ystems and mini-component systems absolute maximum ratings (ta=25 ) parameter symbol ratings unit power supply voltage vcc 7.5 * 1 v vee -7.5 input signal voltage vi n vcc+0.3 to vee-0.3 v power dissipation pd 1300 *2 mw operating temperature range topr -20 to ? 75 storage temperature range tastg -55 to ? 125 *1 even in the specified range of power supply voltage, applying voltage only to the vcc side may cause an excessive current to give a permanent damage to the ic. when starting up power supplies, vee and vcc should be powered on simultaneously or vee first; then followed by vcc. *2 over ta ? 25 , reduce at the rate of 13mw/ . when installed on the standard board (size: 70 ? 70 ? 1.6mm). operating conditions it must function normally at ta ? 25. parameter symbol ratings unit min. typ. max. operating supply voltage vcc 6.5 7 7.3 v vee -7.3 -7 -6.5 no.10081eat01
technical note 2/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS electrical characteristics ta = 2 5 , vcc=7v, vee=-7v, f=1khz, vin=1vrms, rl=10k ? , rg=600 ? , input gain=0db, master volume=0db, output gain=0db, unless otherwise noted. parameter symbol limits unit conditions min. typ. max. total output circuit current vcc iq - 20 40 ma no signal vee -40 -20 - output voltage gain gv -2 0 2 db measure : pin87,88 total harmonic distortion ratio thd - 0.0006 0.03 % measure : pin87,88 bw=400 to 30khz maximum output voltage vomax 3.6 4.2 - vrms measure : pin87,88 thd=1 ? output noise voltage vno - 1.4 12 vrms measure : pin87,88, rg=0 , bw=ihf-a residual noise voltage vnor - 1 8 vrms measure : pin87,88, rg=0 ? , bw=ihf-a, volume=mute cross-talk between channels ctc - -95 -80 db measure : pin88(outfl),87 (outfr) rg=0 ? , bw=ihf-a reference : pin87(outfr), 88(outfl)=1vrms cross-talk between selectors cts - -95 -80 db measure : pin87,88 rg=0 ? , bw=ihf-a input impedance rin 32 47 62 k ? volume output v output voltage gain gvv -2 0 2 db measure : pin 81, 82,83,84,85,86,87,88 v total harmonic distortion ratio thdv - 0.0006 0.03 % measure : pin 81, 82,83,84,85,86,87,88 bw=400 to 30khz v residual noise voltage vnorv - 1 8 vrms measure : pin 81, 82,83,84,85,86,87,88 bw=ihf-a, rg=0 ? ,volume=mute volume setting error vole1 -0.5 0 0.5 db measure : pin 81, 82,83,84,85,86,87,88 volume=0db, vin=3vrms maximum attenuation volmin - -115 -105 db measure : pin 81, 82,83,84,85,86,87,88 vin=3vrms, bw=ihf-a input gain input gain control range gig 10 12 14 db measure : pin 81, 82,83,84,85,86,87,88 input gain=12db, vin=0.3vrms output gain output gain control range gog 13 15 17 db measure : pin 81, 82,83,84,85,86,87,88 output gain=15db, vin=0.3vrms output gain setting erro r goe -0.5 0 0.5 db measure : pin 81, 82,83,84,85,86,87,88 output gain=0db, vin=0.3vrms rec out r output impedance routr - 20 100 ? measure : pin 44,45,46,47 r voltage gain gvr -2 0 2 db measure : pin 44,45,46,47 (*)rl=10k ? r total harmonic distortion ratio thdr - 0.005 0.09 % measure : pin 44,45,46,47 bw=400 to 30khz, (*)rl=10k ? port port h output ph 4.0 4.9 5.4 v measure : pin 62,63 rl=10k ? port output current pi - - 1.0 ma measure : pin 62,63 (*) if two recouts are on, total load resistances of these two (rl) should be 10 k ? . * this product is not of "anti radiation design".
technical note 3/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS timing chart 1) signal timing conditions ? data is read on the rising edge of the clock. ? latch is read on the falling edge of the clock. ? latch signal must terminate with the low state. *to avoid malfunctions, clock and data signals must terminate with the low state. fig.1 parameter symbol limits unit min. typ. max. minimum clock width twc 1.0 - - s minimum data width twd 1.0 - - s minimum latch width twl 1.0 - - s low hold width twh 1.0 - - s data set-up time (data ? clk) tsd 0.5 - - s data hold time (clk ? data) thd 0.5 - - s latch set-up time (clk ? latch) tsl 0.5 - - s latch hold time (data ? latch) thl 0.5 - - s latch low set-up time ts 0.5 - - s latch low hold time th 0.5 - - s 2) voltage conditions for control signals parameter limits unit conditions min. typ. max. ?h? input voltage 2.2 5.5 v vcc = 6.5 7.3v vee=-6.5 -7.3v ?l? input voltage 0 1.0 v cl (clock) da data latch thd thd th ts tsl thl tsd twc twh twd twl data data latch 90% 90% 90% 90% 10% 10% 10% 90% 90% 90% 90% 90% 10% 10% 10% twc terminate with low
technical note 4/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS 3) basic configuration of control data formats input direction msb lsb data d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 data select address ? control data formats input direction select address data (1) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 input selector 1 input selector 2 input att input gain * * 0 0 0 data (2) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 flr input selector sblr input selector multi input selector rec a rec b port a port b * 0 0 0 1 data (3) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 output gain 7ch output gain swch * * * * * 1 0 0 1 data (4) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 master volume flch master volume frch 0 1 0 data (5) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 master volume cch master volume swch 0 1 1 data (6) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 master volume slch master volume srch 1 1 0 data (7) d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0 master volume sblch master volume sbrch 1 1 1 by changing the setting of select address, se ven different control formats are selectable. for select address, the values except those shown above must not be specified. each time of power-on, all of the address data must be initialized. * indicates 0 or 1. (example) input direction msb lsb msb lsb msb lsb msb lsb msb lsb msb lsb msb lsb data(1) l data(2) l data(3) l data(4) l data(5) l data(6) l data(7) l ?l? means latch. after power-on, for the second and subsequent time s, only the desired data can be selected for setting. (example) when changing output gain swch,input direction msb lsb data(3) l ?l? means latch.
technical note 5/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS application circuit unit resistor : ? capacitor : f fig.2 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 37 38 42 41 39 40 43 44 45 46 31 32 36 35 33 34 50 49 48 47 94 93 89 90 92 91 88 87 86 85 100 99 95 96 98 97 81 82 83 84 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k 47k logic output gain volume output gain volume output gain volume output gain volume output gain volume output gain volume output gain volume output gain volume fl input gain fr input gain c input gain sl input gain sr input gain sbl input gain sb r input gain s w input gain vee input att rec vcc aout1 bout1 8ch input 8ch input 9ch input selector 8ch input (dsp) cl da dgn d portb vcc vee + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + + 47 47 10k 10k sw sbr sbl sr sl c fr fl aout2 l r l r l r l r l bout2 r l r l r l r l r sw sbr sbl sr sl c fr fl sw sbr sbl sr sl c fr fl porta routa2 routa1 routb2 routb1 outfl outfr outc outsl outsr outsbl outsbr outsw
technical note 6/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS -10 -8 -6 -4 -2 0 2 4 6 8 10 10 100 1000 10000 100000 frequency (hz) gain (db) 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 input voltage (vrms) output voltage (vrms) 0.0001 0.001 0.01 0.1 1 10 0.001 0.01 0.1 1 10 input voltage (vrms) thd+n (%) -14 -12 -10 -8 -6 -4 -2 0 2 10 100 1000 10000 100000 frequency (hz) gain (db) 0 1 2 3 4 5 6 110100 impedance ( ? ) port voltage (v) 0. 0 0. 5 1. 0 1. 5 2. 0 2. 5 3. 0 3. 5 4. 0 4. 5 5. 0 246810 power supply (v) noise ( vrms) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 -100 -80 -60 -40 -20 0 volume data (db) output attenuation (db) -120 -100 -80 -60 -40 -20 0 10 100 1000 10000 100000 frequency (hz) crosstalk (db) -120 -100 -80 -60 -40 -20 0 10 100 1000 10000 100000 frequency (hz) crosstalk (db) -2 0 2 4 6 8 10 12 14 10 100 1000 10000 100000 frequency (hz) gain (db) -2 0 2 4 6 8 10 12 14 16 10 100 1000 10000 100000 frequency (hz) gain (db) -20 -15 -10 -5 0 5 10 15 20 25 0246810 power supply (v) circuit current (ma) reference data fig.3 circuit current - power supply fig.4 voltage gain - frequency fig.5 output voltage - input voltage fig.6 thd+n - input voltage fig.7 input attenuation - frequency fig.8 input gain - frequency fig.9 volume attenuation - volume settin fig.10 output gain - frequency fig.11 cross-talk between channels - frequency fig.12 cross-talk between selectors - frequency fig.13 output noise voltage - power supply voltage fig.14 port h voltage ? load resistance 12db 6db 0db 15db 10db 5db 0db vcc vee
technical note 7/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS notes for use (1) numbers and data in entries are representative desi gn values and are not guarante ed values of the items. (2) although we are confident in recommending the sample applic ation circuits, carefully check their characteristics further when using them. when modifying externally attached component constants before use, determine them so that they have sufficient margins by taking into account variations in extern ally attached components and the rohm lsi, not only for static characteristics but also including transient characteristics. (3) absolute maximum ratings if applied voltage, operating temperature range, or other absolute maximum ra tings are exceeded, the lsi may be damaged. do not apply voltages or temp eratures that exceed the absolute maximu m ratings. if you think of a case in which absolute maximum ratings are exceeded, enforce fuses or other physical safety meas ures and investigate how not to apply the conditions under which absolute maximum ratings are exceeded to the lsi. (4) vee potential make the vee pin voltage such that it is the lowest voltage ev en when operating below it. act ually confirm that the voltage of each pin does not become a lower voltage t han the vee pin, including transient phenomena. (5) thermal design perform thermal design in which there are adequate margins by taking into account the allowable power dissipation in actual states of use. (6) shorts between pins and misinstallation when mounting the lsi on a board, pay adequat e attention to orientation and placement discrepancies of the lsi. if it is misinstalled and the power is turned on, the lsi may be damage d. it also may be damaged if it is shorted by a foreign substance coming between pins of the lsi or betwe en a pin and a power supply or a pin and a gnd. (7) operation in strong magnetic fields adequately evaluate use in a strong magnetic fiel d, since there is a possibility of malfunction. (8) about operating voltage range and operating temperature range the circuit functional operations are guaranteed within the operating voltage range and o perating temperature range. the standard values of electrical characteristics, however, are guaranteed under the specific conditions. accordingly, careful consideration of the ic characteristic va riations is required to design a set of circuit. (9) about power on/off (a) at power on/off, a shock sound will be gener ated and, therefore, use mute on the set. (b) when turning on power supplies, vee and vcc should be powered on simultaneously or vee first; then followed by vcc. if the vcc side is started up first, an excessive current may pass vcc through vee. (10) about serial control for the cl and da terminals, the patterned and other wirings should be routed not to cause interference with the analog-signal-related lines. (11) about function switching when switching input selector or input gain, use mute on master volume.
technical note 8/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS 0 200 400 600 800 1000 1200 1400 0 25 50 75 100 125 ta( ) power dissipation pd mw) 1300mw thermal derating characteristic fig.15 BD3452KS rohm standard board packaging time value board size: 70 x 70 x 1.6mm raw material : fr4 glass epoxy board (copper area 3% or below)
technical note 9/9 www.rohm.com 2010.06 - rev.a ? 2010 rohm co., ltd. all rights reserved. BD3452KS ordering part number b d 3 4 5 2 k s - part no. part no. package ks: sqfp100 packaging and forming specification none :tray (unit : mm) sqfp100 0.65 51 50 31 81 100 1 30 20.0 0.2 24.0 0.3 14.0 0.2 18.0 0.3 80 0.3 0.1 0.15 0.1 1.2 0.05 2.7 0.1 0.15 ? order quantity needs to be multiple of the minimum quantity. tray (with dry pack) container quantity direction of feed 500pcs direction of product is fixed in a tray 1pin
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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