1/19 www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. small-sized class-d speaker amplifiers analog input monaural class-d speaker amplifier BD5467GUL description BD5467GUL is a monaural class-d speaker amplifier that contained alc func tion for mobile phone, portable type electronic devices etc. lc filt er of speaker output is not needed, can form monaural speaker amplifier with 3 external parts. alc, short for a utomatic l evel c ontrol, is a function that automatically adjust s up to the level of suppression of distortion (clip) of output wave form during excessive input. the time unt il the limit release operation of output level is called the release time (or recovery time). this ic adopts release time (262ms/1db typ.) and suits the applications which play music. through class-d operation, efficiency is high low power consumpt ion that is why it?s suitable for battery drive application. the current consumption during shutdown when lowered to 0.01 a(typ.), from the shutdown to the operation time is early and at the same time pop sound is few that is why its also suitable in repeating active and shutdown. feature 1) contains digital alc (a utomatic l evel c ontrol) function 2) external parts 3points 3) ultra slim type package 9pin wl-csp(1.71.70.55mmmax.) 4) bd5460/61gul (no alc function, ga in fixed goods) pin compatible specs bd5465/66/68gul (alc function, gain fixed goods) pin compatible specs 5) maximum gain 13db(typ.) [during alc operation, 13 -2db@1db step] 6) alc release(recovery) time 262ms/1db(typ.) 7) limit output power 0.7w (typ.) [vdd=4.2v, rl=8 ? , thd+n Q 1%] 0.5w (typ.) [vdd=3.6v, rl=8 ? , thd+n Q 1%] 8) audio analog input (corresponds to single-end input / differential input) 9) output lc filter free 10) pop noise suppression circuit 11) shutdown function (use as mute at the same time) [low shutdown current = 0.01 a (typ.)] 12) contains protection circuit: output short, t hermal shutdown, under voltage lockout (uvlo) applications mobile phone, portable audio devic e, pnd, dsc, note-pc etc. absolute maximum rating (ta=+25 ) parameter symbol ratings unit power supply voltage vddmax pvddmax 7.0 v power dissipation pd 690 mw storage temperature range tstg -55 +150 sdnb pin input range v sdnb -0.3 vdd+0.3 v in+, in- pin input range v in -0.3 vdd+0.3 v in case ta=+25 or more, 5.52 mw decrease per 1 when mounting rohm typical board 50.0mm58.0mm (material glass epoxy) operation range parameter symbol range unit temperature topr -40 +85 power supply voltage vdd pvdd +2.5 +5.5 v common mode input voltage range v ic +0.5 vdd-0.8 v this product is not designed for protection against radio active rays. no.10101eat07
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. electrical characteristic(ta=+25 , vdd=+3.6v, unless specified otherwise) parameter symbol limits unit conditions min. typ. max. all device circuit current (no signal) i cc D 3 6 ma ic active, no load v sdnb =vdd circuit current (shutdown) i sdn D 0.01 2 a ic shutdown v sdnb =gnd audio feature limit output power p o 0.035 vdd 2 0.044 vdd 2 0.055 vdd 2 w btl, f=1khz, r l =8 ? thd+n Q1% , *1 total harmonic distortion t hd+n D 0.2 1 % btl, fin=1khz, r l =8 ? p o =0.3w, *1 maximum gain g max 12 13 14 db btl, *1 alc limit level v lim 1.5 vdd 1.68 vdd 1.89 vdd vpp btl, *1 alc release level v rel 1.19 vdd 1.34 vdd 1.5 vdd vpp btl, *1 switching frequency f osc 150 250 350 khz start-up time t on 0.73 1.02 1.71 msec audio input resistance ri 36 55 74 k ? gain=13db control terminal sdnb terminal threshold voltage h v sdnbh 1.4 D vdd v ic active l v sdnbl 0 D 0.4 v ic shutdown sdnb terminal inflow current h i sdbnh 12 24 36 a v sdnb =3.6v l i sdnbl -5 D 5 a v sdnb =0v * 1 filter bandwidth for measurement 400 30khz, lc filter for ac measurement l=22 h / c=1 f, b t l voltage between a3,c3 shutdown control control terminal conditions sdnb h ic operation (active) l ic stop (shutdown) alc parameter alc parameter attack time (typ.) release time(typ.) gain switch step (typ.) 1ms/1db @ fin=100hz 0.5ms/1db @ fin=1khz 0.05ms/1db @ fin=10khz 262ms/1db @ fin=100 10khz 1db the gain switch timing during alc operation occu rs at zero cross point of audio output voltage. for that, attack time, release time will change at input frequency ?fin?. alc parameter is fixed. alc operation d oesn?t correspond to noise of impulse.
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. measurement circuit diagram in case lc filter is not used in case lc filter is used audio characteristics can be measured to insert lc filt er between output pin and speaker load, if you don?t have measurement equipment for switching amplif ier, like aux-0025, audio precision. arrange the lc filter direct ly close to output pin. in case of l=22 h, c=1 f, cut off frequency becomes: for inductor l, please use huge current type. (reference)tdk: slf12575t-220m4r0 34khz f1h 222 1 lc2 1 fc ? ???? ? ? ? shutdown signal c 2 sdnb b1 b2 vdd pvdd a1 c 1 c3 a3 a2 b3 pgnd gnd c3 10uf h : ic active l: ic shutdown 0 .1 uf 0 .1 uf +battery in + in - out + out - 150 k ( typ.) bias osc pwm h- bridge shutdown control ri ri r f r f a lc lpf ap aux - 0025 audio precision (a p ) measument instrument btl c 2 c 1 audio precision (a p ) shutdown signal c 2 sdnb b1 b2 vdd pvdd a1 c 1 c3 a2 b3 pgnd gnd c3 10uf h: ic active l: ic shutdown 0. 1 uf 0. 1 uf +battery in + in - 150k (typ . ) bias osc pwm h- bridge shutdown control ri ri r f r f a lc a3 c 2 c 1 btl 1uf 1 uf 22uh 22uh
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. external dimension diagram block diagram pin arrangement (bottom view) pin explanation pin no. pin name explanation a1 in+ audio differential input+ terminal a2 gnd gnd terminal (signal) a3 out- class-d btl output - terminal b1 vdd vdd terminal (signal) b2 pvdd vdd terminal (power) b3 pgnd gnd terminal (power) c1 in- audio differential input - terminal c2 sdnb shutdown control terminal c3 out+ class-d btl output+ terminal ( unit : mm ) 5467 lot no . side view top view bottom view 9pin wl-csp (vcsp50l1) [ 1.7 1.7 0.55mm max, 0.5mm pitch ] c2 sdnb b1 b2 vdd pvdd a1 c1 in+ in- c3 a3 out+ out- a2 b3 pgnd gnd 150k (typ.) bias osc pwm h- bridge shutdown control ri ri rf rf alc in+ gnd out- vdd pvdd pgnd in- sdnb out+ a1 a2 a3 b1 b2 b3 c1 c2 c3 index post
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. application circuit example short the power supply pin vdd (b1), pvdd (b2) at board pattern, then use singleness power supply. c2 sdnb b1 b2 vdd pvdd a 1 c1 c3 a 3 a 2 b3 pgnd gnd c 3 10 uf h :ic active l : ic shutdown shutdown signal + battery in+ in- out + out - 150k ( typ .) bias osc pwm h- bridge shutdown control ri ri r f r f a lc differential in p ut a udio input + a udio input - signal vdd singleness power supply(+2.5 +5.5v) power vdd power gnd signal gnd class-d btl output shutdown control audio differential input c2 sdnb b1 b2 vdd pvdd a 1 c1 c3 a 3 a 2 b 3 pgnd gnd c 3 10 uf h :ic active l: ic shutdown 0.1uf 0.1uf shutdown signal + battery in+ in- out + out - 150 k ( typ .) bias osc pwm h- bridge shutdown control ri ri r f r f a lc differential input a udio input + a udio input- class-d btl output power vdd signal vdd singleness power supply (+2.5 +5.5v) shutdown control signal gnd power gnd fig1. differential input(with input coupling capacitor) fig2. differential input(without input coupling capacitor)
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. c 2 sdnb b1 b2 vdd pvdd a 1 c 1 c3 a 3 a 2 b3 pgnd gnd c 3 10uf h :ic active l : ic shutdown 0.1uf a udio input 0.1uf shutdown signal + battery in + in - out + out - 150k ( typ) bias osc pwm h- bridge shutdown control ri ri r f r f a lc signal gnd shutdown control signal vdd power vdd singleness power supply (+2.5 +5.5v) class-d btl output audio single end input c2 sdnb b1 b2 vdd pvdd a 1 c1 c 3 a 3 a 2 b3 pgnd gnd c3 10uf h : ic active l: ic shutdown 0.1uf a udio input 0. 1uf shutdown signal + battery in + in - out + out - 150k ( typ.) bias osc pwm h- bridge shutdown control ri ri r f r f a lc singleness power supply (+2.5 +5.5v) power vdd signal vdd shutdown control power gnd signal gnd class-d btl output audio single end input fig3. single end input (during in+ input) fig4. single end input (during in- input)
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. about the difference of differential input and single end input ? BD5467GUL uses full differential amplifier. BD5467GUL is a class-d but, in relation to audio input and ou tput, is same with the conventional class-ab amplifier. for simplicity purposes of the diagram , the class-d amplifier output stage is omitted in the following explanation. about the resistor, signal on the diagram gives meaning to changes of gain setting by means of alc control. about single end input ? input is possible whether in+ or in- pin. don?t make input pin open, through the input coupling ca pacitor, please connect to gnd as seen on the example above. audio input pin should make ?mute? condition, not ?open? condition when you don?t input any signal. ? during single end input in+ and in-, there is a diff erence with the phase relation of input and output. because of differential amplifier, if input (in+ - in-), output (out+ - out- ), the audio input and output phase relation will become: phase in+ input in- input audio input ? output (out+ - out-) sa me phase opposite phase audio input 0v a1 in+ a3 out- c1 0v ` (out+ - out- ) c3 out+ in- ` audio input 0v a1 in+ a3 out- c1 0v ` c3 out+ in- ` 1) differential input audio input 0v a1 in+ a3 out- c1 (in+ - in- ) c3 out+ opposite phase in- audio input 0v 2) single end input (during in+input ) 3) single end input (during in-input ) opposite phase (in+ - in- ) s a m e p h a s e o p p o s i t e p h a s e opposite phase opposite phase (in+ - in- ) (out+ - out- ) (out+ - out- )
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. gain calculation when input level is calculated at ic typical and audio source typical, when input coupling capacitor (ci) value is large enough, every gain during the differential input and single end input will become: typical input level differentia l output single end output ic formula audio source formula formula 1. ic reference(difference input, single end input) formula vin means the input voltage between ic input pin (in+, in-), vout means t he output voltage between ic output pin ( out+, out- ). during differential input and single end input, t he gain calculation formula at ic reference which includes alc operation is written below: gain = 20log | vout/vin | =+13 -2 (typ.) [db] ??? formula 2. audio source reference(differential input) formula when the input level of audio source is vins, the relation with the input voltage vin between ic input pin is written below: vins = vin / 2 during differential input, at audio source referece that includes alc operation, gain calculation formula will become: gain = 20log | vout / vins | = 20log | 2vout / vin | = +19 +4 (typ.) [db] ???formula 3. audio source reference (single end input) formula when the input level of audio source is vins, the relation with input voltage vin between ic input pin (in+,in-) becomes: vins = vin during single end input, at the audio source that incl udes alc operation, gain calculation formula becomes: gain = 20log | vout / vins | = 20log | vout / vin | = +13 -2 (typ.) [db] ??? formula differential input single end input c2 sdnb b1 b 2 vdd pvdd a 1 c1 c3 a 3 a 2 b 3 pgnd gnd cs h :ic active l : ic shutdown 0 .1 uf 0 .1 uf shutdown signal + battery in+ in- out+ out- 150k (t yp.) bias osc pwm h- bridge shutdown control ri ri r f r f alc vins ci vins vin (= 2vins) ci < a udio source > c2 sdnb b 1 b 2 vdd pvdd a 1 c1 c3 a 3 a 2 b 3 pgnd gnd cs h :ic active l : ic shutdown 0.1 uf 0.1 uf shutdown signal + battery in+ in- out+ out- 150k (t yp .) bias osc pwm h- bridge shutdown control ri ri r f r f alc vins ci vin (= vins) ci < a udio source >
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. audio input pin external lpf connection example external lpf connection example the connection example of 1 st -order lpf which is formed at resistor r lpf and capacitor c lpf , to the audio input pin in+/- (a1, c1 pin) is shown below. the cut frequency of input lpf, together with the single end input and differential input is written below: fc lpf = 1 / (2 r lpf c lpf ) [hz] ex) fc lpf =10khz ? c lpf =0.01 f, r lpf =1.59k ? 1) during single end input when lpf is connected to audio input pin at single end input se tting, at start-up characterist ics of audio input pin in+/-, during start-up with unbalance (power supply on/off, or shutdown on/off), there is a risk that pop sound will occur so please be careful. when no audio input, and in order to prevent output noise, please make previous ic ?mute? condition, not ?open? condition. please refer at the same time to pop sound countermeasure example. c 2 sdnb b1 vdd b2 pvdd a 1 in + c 1 in - c 3 a 3 a 2 b3 gnd pgnd ci ci cs out + out - speaker + battery c lpf r lpf ro front ic c lpf r lpf h ic active l ic shutdown shutdown signal 150 k ( typ.) ri ri a lc bias osc pwm h- bridge shutdown control r f r f pop sound countermeasure input impedance
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. 2) differential input caution during external lpf setting external lpf resistor r lpf which is composed of ic input resistor ri, forms input impedance. the bigger the resistor value of lpf resistor r lpf, the more it will decrease the gain. when the input capacitor ci has enough large capacity value, the relation among external lpf resistor r lpf and ic input resistor ri and gain will become: gain = 20log | rf / (ri + r lpf ) | [db] input resistor ri of BD5467GUL and resistor value of feedback resistor rf will become the following below, during alc operation, changes at 1db st ep, and becomes 16 stages switch specs. #1. ri=55k ? (typ.), rf=245k ? (typ.)@gain=13db #2. ri=60k ? (typ.), rf=240k ? (typ.)@gain=12db #3. ri=66k ? (typ.), rf=234k ? (typ.)@gain=11db #15. ri=159k ? (typ.), rf=141k ? (typ.)@gain=-1db #16. ri=167k ? (typ.), rf=132k ? (typ.)@gain=-2db also with the driver ability of previous ic step, after checking, constant setting of external lpf and resistor r lpf. c 2 sdnb b1 vdd b2 pvdd a 1 in+ c 1 in- c 3 a 3 a 2 b3 gnd pgnd ci ci cs out + out - speaker +battery c lpf c lpf r lpf r lpf ro ro h ic active l ic shutdown shutdown signal front ic lpf 150 k ( typ .) ri ri a lc bias osc pwm h- bridge shutdown control r f r f input impedance
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. evaluation board circuit diagram power supply terminals vdd(b1), pvdd(b2) are short in the board pattern and use a single power. evaluation board parts list qty. item description smd size manufacturer/ part number 2 c1, c2 capacitor, 0.1 f 0603 murata grm188r71c104ka01d 1 c3 capacitor, 10 f a (3216) rohm tcfga1a106m8r 1 s1 slide switch 4mm x 10.2mm nkk ss-12sdp2 1 u1 ic, BD5467GUL , mono class-d audio amplifier 1.7mm x 1.7mm wlcsp package rohm BD5467GUL 1 pcb1 printed-circuit board, BD5467GUL evm D D about the external part input coupling capacitor (c1, c2) input coupling capacitor is 0.1 f. input impedance during maximum gain 13db is 55k ? (typ.). a high-pass filter is composed by the input coupling capacitor and the input impedance. cut-off frequency?fc? by the formula below, through input coupling capacitor c1(=c2) and input impedance ri. in case of ri=55k ? , c1(=c2)=0.1 f, cut-off frequency is about 29hz power supply decoupling capacitor (c3) power supply decoupling capacitor is 10uf. when the capacity value of power supply decoupling capacitor is made small, it will have an influence to the audio characteristics. when making it small, be careful with the audio characteristics at actual application. esr (equ ivalent series resistor) is low enough; please use capacitor with capacity value of 1 f or more. [[[ c1ri2 1 fc u u s c2 sdnb b1 b2 vdd pvdd a1 c1 in+ in- c3 a3 out+ out- a2 b3 pgnd gnd c1 differential input h b ic active l b ic shutdown audio input+ audio input- c2 0.1uf 0.1uf c3 10uf vdd shutdown signal 150k (typ.) bias osc pwm h- bridge shutdown control ri ri rf rf alc connect to gnd connect to input signal connect to speaker connect to power supply (vdd=+2.5 5.5v) audio input vdd gnd
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. evaluation board pcb layer top layer silk pattern top layer bottom layer
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. about ic thermal design the ic characteristics has a big relation with the temperatur e that will be used, to exceed the maximum tolerance junction temperature, can deteriorate and destroy i t. instant destruction and long-time operatio n, from these 2 standpoints, there is a need to be careful with regards to ic thermal. please be careful with the next points. the absolute maximum rating of ic shows the maximum junction temperature (tj max .) or the operation temperature range (topr), so refer to this value, use pd-ta characteristics (thermal reduction ratio curve). if input signal is excessive at a st ate where heat radiation is not sufficien t, there will be tsd (thermal shutdown) for tsd, the chip temperat ure operates at around 180 , releases if its around 120 or less. since the aim is to prevent damage on the chip, please be careful because the long use time at the vicinity where tsd operates can deteriorate the dependency of the ic. thermal reduction ratio curve the value of power dissipation changes based on the board that will be mounted. the power dissipation of main ic during the heat dissipati on design of many mounted boards, will become bigger than the value of the above graph. measurement condition : rohm typical board mount board size : 50mmx58mm note: this value is the real measurement, but not the guaranteed value. reference data vcsp50l1 2.0 1.5 1.0 0.5 0.0 0 25 50 75 100 125 150 perimeter temperature ta( ) power dissipation pd (w) 0.69w ja = 181.8 /w 85
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. evaluation data - t y pical characteristics ( 1/4 ) figure.1 figure.2 figure.3 figure.4 figure.5 figure.6 figure.7 figure.8 efficiency - output power f=1khz, rl=8+33uh 0 10 20 30 40 50 60 70 80 90 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 output power [w] efficiency [%] vdd=2.5v vdd=3.6v vdd=5.0v supply current vs output power f=1khz, rl=8+33uh 0 50 100 150 200 250 300 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 output power [w] icc [ma] vdd=2.5v vdd=3.6v vdd=5.0v efficiency vs output power f=1khz, rl=4+33uh 0 10 20 30 40 50 60 70 80 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 output power [w] efficiency [%] vdd=2.5v vdd=3.6v vdd=5.0v supply current vs output power f=1khz, rl=4+33uh 0 50 100 150 200 250 300 350 400 450 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 output power [w] icc [ma] vdd=2.5v vdd=3.6v vdd=5.0v power dissipation vs output power f=1khz, rl=8+33uh 0 0.05 0.1 0.15 0.2 0.25 0.3 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 output power [w] pd [w] vdd=2.5v vdd=3.6v vdd=5.0v power dissipation vs output power f=1khz, rl=4+33uh 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 output power [w] pd [w] vdd=2.5v vdd=3.6v vdd=5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v shutdown current vs power supply rl=no load, no signal 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0123456 vdd [v] i sdn [a] supply current vs power supply rl=no load, no signal 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0123456 vdd [v] i cc [ma] evaluation data ? typical characteristics (1/4) fig.5 fig.6 fig.7 fig.8 fig.9 fig.10 fig.11 fig.12
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. evaluation data - t y pical characteristics ( 2/4 ) figure.9 figure.10 figure.11 figure.12 figure.13 figure.14 figure.15 output power vs power supply rl=4, f=1khz, 400hz-30khz bpf 0.0 0.5 1.0 1.5 2.0 2.5 22.533.544.555.56 vdd[v] output power [w] thd+nQ1% output power vs load resistance thd+n=1%, f=1khz, 400hz-30khz bpf 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 4 8 12 16 20 24 28 32 rl[] output power [w] vdd=2.5v vdd=3.6v vdd=5.0v total harmonic distortion + noise vs frequency vdd=5.0v rl=8, 400hz-30khz bpf 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] po=25mw po=100mw po=250mw output power vs power supply rl=8, f=1khz, 400hz-30khz bpf 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2 2.5 3 3.5 4 4.5 5 5.5 6 vdd[v] output power [w] thd+nQ1% total harmonic distortion + noise vs frequency vdd=3.6v rl=8, 400hz-30khzbpf 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] po=25mw po=100mw po=250mw vdd = 2.5v vdd = 3.6v vdd = 5.0v po = 250mw po = 100mw po = 25mw po = 250mw po = 100mw po = 25mw total harmonic distortion + noise vs output power rl=8, f=1khz, 400hz-30khz bpf 0.1 1 10 100 0.01 0.1 1 10 output power [w] thd+n [%] vdd = 2.5v vdd = 3.6v vdd = 5.0v total harmonic distortion + noise vs output power rl=4, f=1khz, 400hz-30khz bpf 0.1 1 10 100 0.01 0.1 1 10 output power [w] thd+n [%] vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v evaluation data ? typical characteristics (2/4) fig.13 fig.14 fig.15 fig.16 fig.17 fig.18 fig.19
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. evaluation data - t y pical characteristics ( 3/4 ) figure.16 figure.17 figure.18 figure.19 figure.20 figure.21 figure.22 figure.23 output power vs input level @ sweep up rl=8, f=1khz, 400hz-30khz bpf 1m 10m 100m 1 10 -30 -25 -20 -15 -10 -5 0 5 vin [dbv] output power [w] vdd = 2.5v vdd = 3.6v vdd = 5.0v output power vs input level @ sweep up rl=4,f=1khz, 400hz-30khz bpf 1m 10m 100m 1 10 -30 -25 -20 -15 -10 -5 0 5 10 15 vin [dbv] output power [w] vdd = 2.5v vdd = 3.6v vdd = 5.0v total harmonic distortion + noise vs frequency vdd=2.5v, rl=8, 400hz-30khz bpf 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] po=25mw po=100mw po=150mw total harmonic distortion + noise vs frequency rl=8, po=125mw, 400hz-30khz bpf 0.01 0.1 1 10 10 100 1k 10k 100k frequency [hz] thd+n [%] vdd=2.5v vdd=3.6v vdd=5.0v gain_vs_frequency rl=4, vin=0.5vpp, 400hz-30khz bpf 0 2 4 6 8 10 12 14 10 100 1k 10k 100k frequency [hz] gain [db] vdd=2.5v vdd=3.6v vdd=5.0v gain vs frequency rl=8, vin=0.5vpp, 400hz-30khz bpf 0 2 4 6 8 10 12 14 10 100 1k 10k 100k frequency [hz] gain [db] vdd=2.5v vdd=3.6v vdd=5.0v po = 150mw po = 100mw po = 25mw vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v total harmonic distortion + noise vs input level @ sweep up rl=4,f=1khz, 400hz-30khz bpf 0.1 1 10 100 -30 -25 -20 -15 -10 -5 0 5 10 15 vin [dbv] thd+n [%] vdd = 2.5v vdd = 3.6v vdd = 5.0v total harmonic distortion + no ise vs input level @ sweep up rl=8,f=1khz, 400hz-30khz bpf 0.1 1 10 100 -30 -25 -20 -15 -10 -5 0 5 vin [dbv] thd+n [%] vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v vdd = 2.5v vdd = 3.6v vdd = 5.0v evaluation data ? typical characteristics (3/4) fig.20 fig.21 fig.22 fig.23 fig.24 fig.25 fig.26 fig.27
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. evaluation data - t y pical characteristics ( 4/4 ) figure.24 figure.25 figure.26 figure.27 alc release operation waveform f=1khz -0.4 0 0.4 0.8 1.2 1.6 2 2.4 2.8 time [sec] waveform during shutdown -0.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 time [msec] waveform during start-up -0.2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 time [msec] alc limit operation waveform f=1khz -101234567 time [msec] 2v / div. 2v / div. 1v / div. 1v / div. input output input output input output input output ton ( wake-up time ) evaluation data ? typical characteristics (4/4) fig.28 fig.29 fig.30 fig.31
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. notes for use (1) the numerical value and the data of the mention are a design representative value and are not the one which guarantees the value. (2) it is convinced that it should recommend application circuit example but in case of use, we request the confirmation of the characteristic more sufficiently. when changing an external part fixed number and becoming us e, it considers sprawl of the external part and our company's lsi in cluding the transition characteristic in addition to the stillness characteristic and so on, see and fix an enough margin. (3) absolute maximum ratings this ic may be damaged if the absolute maximum ratings fo r the applied voltage, tem perature range, or other parameters are exceeded. therefore, av oid using a voltage or temperature that exceeds the absolute maximum ratings. if it is possible that absolute maximum ratings will be exce eded, use fuses or other physical safety measures and determine ways to avoid exceeding the ic's absolute maximum ratings. (4) gnd terminal?s potential try to set the minimum voltage for gnd terminal ?s potential, regardless of the operation mode. (5) shorting between pins and mounting errors when mounting the ic chip on a board, be very careful to set the chip's orientation and position precisely. when the power is turned on, the ic may be damaged if it is not mo unted correctly. the ic may also be damaged if a short occurs (due to a foreign object, etc.) between two pins, between a pin and the power supply, or between a pin and the gnd. (6) operation in strong magnetic fields note with caution that operation faults may occur when this ic operates in a strong magnetic field. (7) thermal design ensure sufficient margins to the thermal design by taking in to account the allowable power dissipation during actual use modes, because this ic is power amplifier. when excessive signal inputs which the heat dissipation is insufficient condition, it is possible that thermal shutdown circuit is active. (8) thermal shutdown circuit this product is provided with a built-in thermal shutdown circuit. when the the rmal shutdown circuit operates, the output transistors are placed under open status. the thermal shutdown circuit is primarily intended to shut down the ic avoiding thermal runaway under abnormal conditions with a chip temperature exceeding t jmax =+150 , and is not intended to protect and secure an electrical appliance. (9) load of the output terminal this ic corresponds to dynamic speaker load, and doesn't correspond to the load except for dynamic speakers. when using speaker load 8 ? or less (especially 4 ? ), there will be a risk of generating distor tion at the speaker output wave form during alc limit operation. (10) the short protecti on of the output terminal this ic is built in the short protection for a protection of output transistors. when the short protecti on is operated, output terminal become hi-z condition and is stopped with latch. once output is stopped with la tch, output does not recover automatically by canceling the short-circ uiting condition. the condition of stoppi ng with latch is cancelled, when power supply or mute signal is turned off and turned on again. (11) operation range the rated operating power supply voltage range (vdd=+2.5v +5.5v) and the rated operating temperature range (ta=-40 +85 ) are the range by which basic circuit functions is operated. characteristics and rated output power are not guaranteed in all power supply voltage ranges or temperature ranges. (12) electrical characteristics every audio characteristics list of the lim it output power, total harmonic distorti on, maximum gain, alc limit level, alc release level etc. shows the typical characteristics of the device, highly dependent to the board lay-out, parts to be used, power supply. the value when the device and each comp onent are directly mounted to the board of rohm. (13) power supply since the power supply pin for signal (vdd) and power supply for power (pvdd) is short at internal, short the board pattern, then use a single power supply. also, the power supply line of class-d speaker amplifier flows big peak energy. it will influence the audio characteristics based on the capacity value of power supply decoupling capacitor, arrangement. for the power supply decoupling capacitor, please arrange appropriately the low capacity (1 f or more) of esr (equivalent series resistor) directly near to ic pin. (14) alc (a utomatic l evel c ontrol) function the alc automatically adjusts the audio ou tput level, and a function t hat prevents the over out put to the speaker. when alc function is working, gain switches at zero-cross point of audio output normally. if the time that audio output reaches to zero-cross point is long, gain switch es at about 1msec later (attack time), at about 25msec later (release time). so, attack time and release time will change at audio input fr equency. alc parameter is fixed. alc operation doesn?t correspond to noise of impulse. also, alc limit control will become a power supply tracking type , limit output power is dependent to power supply voltage. the alc characteristics of limit output po wer, alc limit and release limit will be influenced by the shaking so please be careful.
BD5467GUL www.rohm.com 2010.09 - rev. a ? 2010 rohm co., ltd. all rights reserved. ordering part number b d 5 4 6 7 g u l - e 2 part no. part no. package gul vcsp50l1 packaging and forming specification e2: embossed tape and reel ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape tape quantity direction of feed the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 3000pcs e2 () direction of feed reel 1pin (unit : mm) vcsp50l1 (BD5467GUL ) s 0.06 s a b ba 0.05 1pin mark 3 0.350.05 9- 0.250.05 1.700.05 2 ( 0.15)index post c 1 0.350.05 b 0.55max 1.700.05 a 0.10.05 p=0.52 p=0.52
