ics for md system 1 publication date: june 2002 sdd00024aeb AN22011A 3-beam md system pre-amplifier overview the AN22011A incorporates such functions as rf signal processing, servo signal processing, adip signal processing and laser control. this is an rf ic that can constitute the md system using 3-beam pick-up in com- bination with the digital signal processing lsi mn66621. the ic allows us to achieve a considerable low power dissipation as well as its low supply voltage operation (v cc = 2.1 v to 3.6 v) due to our introduction of digital matrix (p d = 11 mw at v cc = 2.1 v). the ic can be used in a wide range of applications from a stand-alone system to a portable system. features ? 3-beam system pick-up ? rf signal processing ? servo signal processing ? laser power control function ? low supply voltage operation (2.1 v to 3.6 v) ? ultra low power consumption (min. 11 mw) ? thin package adopted (mold thickness: 1 mm) applications ? md player/recorder ? home audio systems/mini systems portable audio car audio tqfp048-p-0707b (lead-free package) unit: mm 0.15 0.05 0.50 0.10 0.20 0.05 9.00 0.20 7.00 0.10 7.00 0.10 9.00 0.20 0.10 +0.10 - 0.05 0 to 8 1.20 max. (0.75) (1.00) (0.75) (1.00) seating plane 37 13 48 1 12 36 24 25 0.50 m 0.10 0.10 maintenance/ discontinued maintenance/discontinued includes following four product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type please visit following url about latest information. http://panasonic.net/sc/en
AN22011A 2 sdd00024aeb block diagram pd pd e 1 48 13 47 14 46 15 45 16 rf1 44 17 v cc v cc 43 18 v ref 42 19 41 20 40 21 39 22 38 23 37 24 23 45 6 gnd2 7 8 9 10 11 gnd1 12 36 35 34 33 32 31 30 29 28 27 26 25 v ref v ref v ref v ref v ref v cc sw ldon 3 tap lpf 3 tap 3 tap 1 bpf switch band gap monioff 3tenv agc eq bottom detector peak detector nrfstby switching signal 2 bpf clv2 nrfstby ldon clv2 monioff 3 tap 3 tap v ref v ref v ref thermistor resistance pickup pickup laser 3 tap v ref v ref v ref pd f pd d pd c pd b pd a pd iv rf2 pd iv microcomputer servo lsi
AN22011A 3 sdd00024aeb pin no. symbol description 26 ofson te stray light canceling operation setting pin 27 nrec rec/playback switching signal input pin 28 rfswhl reflection ratio h/l switching signal input pin 29 rfswpg pit/grv switching signal input pin 30 gnd2 gnd pin 2 31 n.c. 32 monioff 3tmon circuit control signal input pin 33 clv2 adip bpf switching signal input pin 34 ldon apc circuit control signal input pin 35 nrfstby standby control signal input pin 36 temp temperature sensor amplifier output pin 37 tempin temperature sensor amplifier input pin 38 a a signal input pin 39 b b signal input pin 40 c c signal input pin 41 d d signal input pin 42 v ref reference signal output pin 43 rf2 rf2 signal input pin 44 rf1 rf1 signal input pin 45 n.c. 46 n.c. 47 f f signal input pin 48 e e signal input pin pin descriptions pin no. symbol description 1 ldo ld amplifier output pin 2 ldin ld amplifier reverse input pin 3 apcpd photo diode light quantity detector pin 4 apcref apc amplifier reference voltage input pin 5 arfo rf amplifier output pin 6 n.c. 7 eqin eq input pin 8 crfagc rfagc capacitor pin 9 outrf efm output pin 10 n.c. 11 peak efm bright level detection output pin 12 gnd1 gnd pin 1 13 botm efm dark level detection output pin 14 cea 3t envelope detection capacitor pin 15 mon3t 3t envelope output pin 16 ee e signal i-v converting output pin 17 ff f signal i-v converting output pin 18 v cc v cc pin 19 ofsin te stray light canceling pin 20 n.c. 21 ff2 (a + c) signal i-v converting output pin 22 ff1 (b + d) signal i-v converting output pin 23 n.c. 24 n.c. 25 adip adip signal output pin absolute maximum ratings parameter symbol rating unit supply voltage v cc 4.0 v supply current i cc 7.5 ma setting pin upper limit * 2 v inh 3.6 v power dissipation * 1 p d 30 mw operating ambient temperature * 1 t opr ? 30 to + 85 c storage temperature * 1 t stg ? 55 to + 125 c note) * 1: except for power dissipation, operating ambient temperature and storage temperature, all ratings are for t a = 25 c. * 2: setting pin refers to ofson (pin 26), nrec (pin 27), rfswhl (pin 28), rfswpg (pin 29), monioff (pin 32), clv2 (pin 33), ldon (pin 34), nrfstby (pin 35).
AN22011A 4 sdd00024aeb recommended operating range parameter symbol range unit supply voltage v cc 2.1 to 3.6 v parameter symbol conditions min typ max unit no load consumption current 1 i total1 normal mode 4.5 5.5 6.5 ma no load consumption current 2 i total2 sleep mode 200 300 400 a v ref offset v ovb normal mode ? 50 0 50 mv v ref output impedance z vb i 42 = 1.5 ma 5 ld amplifier off operation v ldoff apc off mode 0.2 v ld amplifier gain playback mode g ldp apc on mode ? 23 ? 20 ? 17 db ld amplifier gain recording mode g ldr apc on mode ? 5.5 ? 2.5 0.5 db temperature amplifier gain g tm v 37 = v ref 0.75 v ? 20 2 db ff1 offset v f1 pit high reflection ratio mode ? 100 0 100 mv ff2 offset v f2 pit high reflection ratio mode ? 100 0 100 mv ff1 gain z firo pit high reflection ratio m ode 46.2 57.7 69.2 k pit high reflection ratio mode ff1 gain z fira pit low reflection ratio mode 197 250 303 k pit low reflection ratio mode ff1 gain record mode z fire record mode 17.5 21.9 26.3 k ff2 relative gain z f2ro pit high reflection ratio mode ? 20 2 db pit high reflection ratio mode ff2 relative gain z f2ra pit low reflection ratio mode ? 20 2 db pit low reflection ratio mode ff2 relative gain record mode z f2re record mode ? 20 2 db ff1 frequency characteristic g f1 pit high reflection ratio mode ? 9 ? 6 ? 3db v 38 : 3 khz, 30 khz sine wave ff2 frequency characteristic g f2 pit high reflection ratio mode ? 9 ? 6 ? 3db v 39 : 3 khz, 30 khz sine wave ee offset v ee pit high reflection ratio mode ? 750 ? 600 ? 450 mv ff offset v ff pit high reflection ratio mode ? 750 ? 600 ? 450 mv ee gain z eero pit high reflection ratio mode 148 185 222 k pit high reflection ratio mode ee gain z eera pit low reflection ratio mode 776 970 1 164 k pit low reflection ratio mode ee gain record mode z eere record mode 88 110 132 k ff relative gain z ffro pit high reflection ratio mode ? 20 2 db pit high reflection ratio mode ff relative gain z ffra pit low reflection ratio mode ? 20 2 db pit low reflection ratio mode electrical characteristics at t a = 25c
AN22011A 5 sdd00024aeb parameter symbol conditions min typ max unit ff relative gain record mode z ffre record mode ? 20 2 db ee frequency characteristics g ee pit high reflection ratio mode ? 6 ? 3 ? 0.5 db v 48 : 1.5 khz, 15 khz sine wave ff frequency characteristics g ff pit high reflection ratio mode ? 6 ? 3 ? 0.5 db v 47 : 1.5 khz, 15 khz sine wave te stray light canceling operation tofs ram mode 0.4 0.5 0.6 stray light canceling mode adip gain g ad1 record mode 24.0 27.0 30.0 db line double speed mode adip center frequency f ad1 record mode 35.2 44.0 52.8 khz line double speed mode adip band width f ad1 record mode 23.7 29.6 35.5 khz line double speed mode adip relative gain typical g ad2 record mode ? 30 3 db speed mode typical speed mode rf amplifier gain g rfg v 43 : 100 khz sine wave 19 22 25 db groove mode groove mode rf amplifier gain g rfpl v 43 : 100 khz sine wave 3 6 9 db pit low reflection ratio mode pit low reflection ratio mode rf amplifier gain g rfph v 43 : 100 khz sine wave ? 11.5 ? 8.5 ? 5.5 db pit high reflection ratio mode pit high reflection ratio mode rf amplifier frequency characteristics g rfg v 43 : 5 mhz sine wave ? 3 db groove mode groove mode rf amplifier frequency characteristics g rfpl v 43 : 5 mhz sine wave ? 3 db pit low reflection ratio mode pit low reflection ratio mode rf amplifier frequency characteristics g rfph v 43 : 5 mhz sine wave ? 3 db pit high reflection ratio mode pit high reflection ratio mode eq boost gain g eq v 7 : 400 khz, 1.44 mhz sine wave 2.5 3.5 4.5 db v 8 = v ref agc operation v omrfv v 7 : 500 khz sine wave 0.4 0.5 0.6 v[p-p] agc discharge current i agc1 v 7 : sin 500 mv[p-p], 720 khz ? 140 ? 110 ? 80 a v 8 = v ref agc charging current i agc2 v 7 = v ref , v 8 = v ref 0.1 0.4 0.7 a efm peak peak detecting offset v pe v 7 = v ref ? 200 0 200 mv efm peak peak detecting level v peak v 7 : 720 khz am modulation 80 110 140 mv[p-p] sine wave (1 khz, 30%) efm bottom detecting offset v bo v 7 = v ref ? 200 0 200 mv efm bottom detecting relative level v botm v 7 : 720 khz am modulation ? 20 0 20 mv[p-p] sine wave (1 khz, 30%) 3t element envelope v 3tmon v 7 : 720 khz am modulation 125 185 245 mv[p-p] extracting level sine wave (5 khz, 5%) electrical characteristics at t a = 25c (continued)
AN22011A 6 sdd00024aeb usage notes 1. operation mode setting ? gain switch setting monioff (pin32) operation mode h 3t detection circuit off l 3t detection circuit on nrec (pin27) rfswhl (pin28) rfswpg (pin29) operation mode h h h pit high reflection ratio mode h l h pit low reflection ratio mode h l l groove mode l l l record mode ? 3t detection circuit mode switch setting clv2 (pin33) operation mode bpf center frequency h typical speed mode f o = 22.0 khz l line double speed mode f o = 44.0 khz ? adip bpf mode switch setting note) the values shown on the list are for design purpose. ldon (pin34) operation mode h apc circuit on l apc circuit off ? apc mode setting nrfstby (pin35) operation mode h normal operation l power saving operation ? power saving mode setting ofson (pin26) operation mode h cancellation circuit on l cancellation circuit off ? te stray light cancellation setting note) this function is valid only for reading on the writable disk.
AN22011A 7 sdd00024aeb usage notes (continued) 2. setting pin input voltage set the input voltages for ofson (pin26), nrec (pin27), rfswhl (pin28), rfswpg (pin29), monioff (pin32), clv2 (pin33), ldon (pin34) and nrfstby (pin35). as listed below. setting input voltage h 1.4 v to 3.6 v l 0.7 v or less the related equivalent circuits are as follows. 22.8 k nrec rfswhl rfswpg clv2 monioff 33 k 100 k 1 k ofson 160 k 140 k 60 k nrfstby 140 k 60 k 100 k 200 k 33 k ldon note) the resistance values are for designing.
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