integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 1 APR9301 re-recording voice ic single-chip voice recording & playback device for single 20 to 30 second message features : single-chip, high quality voic e recording & playback solution - no external ics required - minimum external components non-volatile flash memory technology - no battery backup required - 100k record cycles (typical) - 100-year message retention (typical) single message of 20 to 30 seconds, wi th external resistor selection chip enable pin for simple message expansion user-friendly, easy-to-use operation - programming & development systems not required - level-activated recording & edge-activated playback switches low power consumption - operating current: 25ma (typical, no load) - standby current: 1ua (typical, no load) automatic power-down feature for longer battery life single 5v power supply general description : the APR9301 device offers true single-chip solid-state storage capability and requires no software or microcont-roller support. it provides high-quality recording and playback with a single 20- to 30-second message. it is ideal fo r portable voice recorders, toys, and many other consumer and industrial appl ications. aplus?s proprietary analog/multi-level stor age technology is im plemented in advanced flash non-volatile memory cells,each of whic h can typically store more than 256 voltage levels. the APR9301 device stor es and reproduces voice signal s in their natural forms, eliminating distortion that is often introduc ed by encoding and compression. the device combines a small size with low power consumpt ion,non-volatility, and ease-of-use for a cost effective solution to voice recording and playback
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 2 ps : the APR9301 dip & sop is not [ pin to pin ] functional block diagram : figure 2 shows the functional block diagram for the APR9301 device. figure 2 APR9301 functional block diagram
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 3 sample application figure 3 shows the diagram for a single, 20-second message recording and playback application using the APR9301 device. when pins are connected as shown in this example,the o perating modes are as follows: record mode (level-activated) a single voice message of up to 20 seconds can be recorded.the /led pin will go low during the actual recording process to provide a visual indication if an led light is connected to this pin. the chip is in record mode as long as the /recl pin stays low level-activated). if the message lasts longer than 20 seconds, recording will terminate automatically after t he last available memory cell is written. if the message is shorter than 20 seconds, the recording operation will stop when the /rec l pin goes high. the speaker driver is automatically tristated during the recording operation. messages of up to 30 seconds can be recorded by using different oscr resistor values (see table 1). playback mode (edge-activated) playback always starts from the beginning of the message.the chip is in playback mode after the /playe pin pulses low (edge-activated). playback will stop immediately when the /playe pin pulses low a second time. if the newly recorded message is shorter than the previously recorded message, the remaining portion of the previous message will not be played after the new message is played back. the input preamplifier, agc, and main amplifier circuits are disabled during playback. standby mode (/ce = "0) the chip will automatically return to the standby state after recording or playback operation is completed. power down mode (/ce = "1 `) the chip is always in standby state. no recording or pl ayback is allowed. current consumption is typically less than 1ua.
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 4 figure 3 sample applic ation for the APR9301 : nc=no connect (must be floating) pins 23 and 27 have intern al pull-up resistors. the typical sampling frequency is 6.4khz with oscr=52k table 1 typical dependence of sampling frequency and tota l voice duration on oscr resistor value (vcca = vccd = 5v; vssa = vssd = 0v; ta = 25 ) oscr value sampling frequency typical cutoff frequency (3db point) total voice duration typical working voltage 38 k 8 k h z 3.4 k h z 16 seconds 4.5v ~ 6.5v 52 k 6.4 k h z 2.7 k h z 20 seconds 4.5v ~ 6.5v 67 k 5.3 k h z 2.3 k h z 24 seconds 4.8v ~ 6.5v 75 k 4.5 k h z 2 k h z 30 seconds 5.2v ~ 6.5v
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 5 figure 4 shows the same application using ex ternal microphone biasing instead of the microphone amplifier on the APR9301 device, thus bypassi ng the preamplifier portion of the chip function. figure 4 sample application usin g external microphone biasing : notes: nc=no connect (must be floating). pins 23 and 27 have intern al pull-up resistors. the typical sampling frequency is 6.4khz with oscr=52k npn bipolar transistor,t1 model #mps3904 or equivalent. electrical characteristics tables 2 through 4 list absolute maximum ratings, recommended dc characteristics, and recommended analog characterist ics for the APR9301 device
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 6 absolute maximum ratings stresses greater than those listed in table 2 may cause permanent damage to the device. these specifications represent a stre ss rating only. operation of the device at these or any other conditions above t hose specified in the recommended dc characteristics or recommended analog characteristics of th is specification is not implied. operation of the device at maximum conditions for extended periods may affect reliability. table 2 absolute maximum ratings. item symbol condition min max unit power supply voltage vcc ta = 25 4.5 6.5 v input voltage vin1 ta = 25 -0.3 vcc +0.3 v input voltage vin2 iin <20 ma -1.0 vcc +1.0 v storage temperature tstg -- -65 150 temperature under bias tbs -- -65 125 lead temperature tld <10s -- 300 table 3 dc characte ristics ( note 1 ) item symbol condition mm typ max unit input high voltage vih -- 0.8 x vcc -- -- v input low voltage vil -- -- -- 0.8 v output high voltage voh iol = -1 .6ma 2.4 -- -- v output low voltage vol iol = 4.0ma -- -- 0.45 v input leakage current iih vih = vcc -- -- 1.0 ua input leakage current iil vil = vss( note 2 ) -1.0 -- -- ua output tristate leakage current ioz vout = vcc or vout=vss -1.0 -- 1.0 ua operating current consumption icc internal clock, no load -- 25 -- ma standby current consumption lccs no load -- 1.0 -- ua
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 7 table 4 analog characteristics ( note 1 ) item symbol condition mim typ max unit micin input voltage vmi -- -- -- 20 mvp-p micin input resistance rmi -- -- 10 -- k micin amp gain (1) gmil agc Q 2.2v -- 24 -- db micin amp gain (2) gmi2 agc R 3.ov -- -45 -15 db anain input voltage vani -- -- -- 50 mvp-p anain input resistance rani -- -- 10 -- k anain amp gain gani analn to sp+/- -- 22 -- db agc output resistance ragc -- -- 1 -- k sp+/- output power psp rsp+/- = 16 -- 12.2 -- mw voltage amplitude across sp+/- vsp rsp+/- R 16 -- 1.25 -- vp-p total harmonic distortion thd @ 1khz & 20mvp-p input 1 % note 1: typical values: vccd = vc ca = 5v; vssd = vssa = 0v; ta = 25 note 2: except pins 23 and 27 whic h have internal pull-up resistors. bonding pad diagram & description of bonding p ad coordinates : figure 5 APR9301 die bonding pad diagram notes: die diagram is with respect to die center(um) die dimensions: x=214 1 mils(5500um) y=144 1 mils(3750um) die thickness: 13.8 1.0 mils (350 25um) pad opening: 4.3mils 110um * connect substrate to ground.
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 8 table 5 APR9301 bondin g pad coordinates : pin pin name x ? axis (note) y ? axis (note) /ce chip enable -2496.2 1565.8 oscr oscillator frequency-setting resistor -2459.55 729.8 nu1 connect to ground -1808.45 -1496.1 vssd digital ground supply -1564.05 -1572 vssa analog ground supp ly -1384.05 -1548.7 vssa analog ground supp ly -1204.35 -1477.1 sp+ non-inverting speaker output -707.15 -1390 sp- inverting speaker output 479.15 -1389.9 vcca analog power supply 976.45 -1492 vcca analog power supply 1190.4 -1523.7 minin microphone input 1619.45 -1551.4 micref microphone refer ence input 2035.45 -1551.4 agc automatic gain control 2487.45 -1551.4 anain analog signal input 2487.45 -1049.9 anaout analog signal output 2487.45 -648.9 /playe edge-activated playback 2493.65 1371.1 /led led output 1430.7 1565.8 vssd connect to ground 865.75 1565.8 /recl level-activated record 258.15 1565.8 vccd digital power supply -229.4 1579.05 vccd digital power supply -510.8 1541.6 note: with respect to die center(um)
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 9 package outline : sop ? 28 ( 300 mil )
integrated circuits inc. - APR9301 http://www.aplusinc.com.tw page / 10 ver2.3 10 package outline : dip ? 28 ( 600 mil )
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