integrated circuits inc. AIVR341N sep 15, 2011 2 a plus make your production a-plus data sheet AIVR341N C 341 sec a plus integrated circuits inc. sales e-mail: sales@aplusinc.com.tw address: 3 f-10, no. 32, sec. 1, chenggung rd., taipei, taiwan 115, r.o.c. (115) ???^?? 32 ? 3 ? 10. tel: 886-2-2782-9266 fax: 886-2-2782-9255 website : http: //www.aplusinc.com.tw support e-mail: service@aplusinc.com.tw
integrated circuits inc. AIVR341N sep 15, 2011 3 features standard cmos process. embedded eprom. embedded 8-bit mcu. 341sec voice duration at 6 khz sampling with 4-bit adpcm compression. combination of voice building blocks to extend play back duration. table entries are available for voice block combina tions. user selectable pcm or adpcm data compress. voice group trigger options: edge / level; hold / u n-hold; retrigger / non-retrigger. programmable i/os, timer interrupt and watch dog ti mer. built-in oscillator with fixed rosc, software contr ol sampling frequency 2.4v C 3.6v single power supply and < 5ua low stand -by current. pwm vout1 and vout2 drive speaker directly. d/a cout with ramp-up ramp-down option to drive spe aker through an external bjt. volume control. maximum 9-bit resolution. internal power-up reset circuit built-in; rstb prov ides external controlled reset to the chip. description aplus AIVR341N is a 8-bit mcu based voice chip. it is fabricated with standard cmos process with embedded voice storage memory. it can store 3 41sec voice message with 4-bit adpcm compression at 6khz sampling rate. 8-bit pcm is al so available as user selectable option to improve sound quality. there are upto fifteen programmable i/o pins. key trigger and parallel cpu trigger mode can be configured according to different appli cation requirement. user selectable triggering and output signal options provide maximum flexibility t o various applications. built-in resistor controll ed oscillator, 9-bit resolution current mode d/a outpu t and pwm direct speaker driving minimize the number of external components. volume control for both dac and vout output is available.
integrated circuits inc. AIVR341N sep 15, 2011 4 pin configuration pin descriptions pin names description vout1 pwm output to drive speaker directly vout2_cout pwm output or cout dac output select by programmable option vss power ground vssa analog power ground osc oscillator input vdd positive power supply vdda analog positive power supply vpp positive power for eprom programming, nc during voice playback pb0~pb3 programmable i/o port b pc0~pc3 programmable i/o port c pd0~pd2 programmable i/o port d pe0~pe3 programmable i/o port e rstb reset pin, low active; note: pb, pc, pd and pe ports are software programmable i /o pins that can be set to different configurations such as pure input, input with pull- up, input with pull-down and output. the programmable i/o pins set up will take effect immed iately after chip reset is applied. pins for memory programming are: vdd, vdda, vss, vs sa, vpp, pb0, pb1, osc, vout2 and rstb.
integrated circuits inc. AIVR341N sep 15, 2011 5 block diagram absolute maximum ratings symbol rating unit v dd - v ss -0.5 ~ +4.0 v v in v ss - 0.3 integrated circuits inc. AIVR341N sep 15, 2011 6 dc characteristics ( t a = 0 to 70 , v dd = 3.0v, v ss = 0v ) symbol parameter min. typ. max. unit conditions v dd operating voltage 2.2 3.0 3.6 v i sb standby current ? 1 5 a i/o properly terminated i op operating current ? 7 ? ma i/o properly terminated v ih "h" input voltage 2.5 3.0 3.5 v v dd =3.0v v il "l" input voltage -0.3 0 0.5 v v dd =3.0v i voutl_n v out low o/p current (normal volume) ? 130 ? ma vout=1.0v i voutl_h v out low o/p current (high volume) ? 200 ? ma vout=1.0v i vouth_n v out high o/p current (normal volume) ? -130 ? ma vout=2.0v i vouth_h v out high o/p current (high volume) ? -200 ? ma vout=2.0v i co c out o/p current ? -2 ? ma data = 80h i oh o/p high current ? -10 ? ma v oh =2.5v i ol o/p low current ? 17 ? ma v ol =0.3v rn vout vout pull-down resistance ? 100k ? ? vout pin set to internal pull-down rn pio programmable io pin pull-down resistance ? 1m ? ? pbx, pcx, pdx set to internal pull-down ru pio programmable io pin pull-up resistance 3.3k 4.7k ? ? pbx, pcx, pdx set to internal pull-up d fs/fs frequency stability -3 ? + 3 % v dd = 3v +/- 0.4v d fc/fc chip to chip frequency variation -5 ? + 5 % also apply to lot to lot variation
integrated circuits inc. AIVR341N sep 15, 2011 7 typical applications using 3.3v battery direct drive speaker using 4.5v battery with cout speaker drive vss, vssa 4.5v rstb pb0 pb1 pb2 osc 0.1uf tr vout2_ cout 8 1/4w speaker ht7335 output driving of ht ldo: ht7133 (30ma, 3.3v) ht7536 (100ma, 3.6v) ht7335 (250ma, 3.5v) rb 4.7k note : pb0 to pb2 are set to input c1 and c2 must be connected directly on the vdd/vdd a and vss/vssa pins vdda c1, 0.1uf r osc = 220k rp=1ohm vdd c2, 0.1uf vdda vss, vssa 3.3v rstb pb0 pb1 pb2 osc crst = 0.1uf c1, 0.1uf r osc = 220k vout1 vout2_ cout pb3 rrst = 4.7k note: 1. pb0 to pb2 are set to input; pb3 is set to outpu t 2. c1 and c2 must be connected directly on the vdd, vdda and vss, vssa pins of the chip 3. r1 is optional for fast discharge of c1, c2 and crst when power off. r1 1m sp rp=1ohm vdd c2, 0.1uf
integrated circuits inc. AIVR341N sep 15, 2011 8 5v cpu control with cout note for cout speaker drive: 1. c1 and c2 must be connected as close to the vdd/ vdda and vss/vssa pins as possible. 2. rb is base resistor from 120 ohm to 390 ohm depe nds on value of vdd and transistor gain. 3. tr is an npn transistor with beta larger than 15 0, e.g. 8050d. 4. rosc = 220k ohm with vdd=3.0v can support sampli ng rate up to 14khz. vss, vssa rstb pb3 osc 0.1uf r osc 220k tr vout2_ cout 8 1/4w speaker ht7335 pb0 pb1 pb2 vout=+3.5v addr[0] addr[1] addr[2] io0 vin=+5v note : pb0 to pb2 set to internal pull-up addr[0] to [2] are open drain output drive mcu rb 4.7k vdda c1, 0.1uf rp=1ohm vdd c2, 0.1uf
integrated circuits inc. AIVR341N sep 15, 2011 9 bonding diagrams note: substrate must be connected to vss
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