AN8847

AN8847SB PANASONIC | Alldatasheet

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ICs for Compact Disc/CD-ROM Player AN8847SB Head amplifier IC for CD-ROM drive (for 32 times speed or more) n Overview The AN8847SB is a head amplifier IC for digital servo. It can configure an efficient CD-ROM system in combination with the MN662753, and allows a full-automatic adjustment of tracking bal- ance-gain-offset and focus balance-gain-offset with fewer external parts. Built-in functions are a variable equalizer, high band RF amp. and AGC which meet CAV playback with 32 times speed or more. n Features

• Variable equalizer which meets CAV playback with 32 times speed or more.
• Wide band RF amp. and AGC (fC = 30 MHz or more (-3 dB))
• Balance adjustment function built-in Focus error amp./tracking error amp.
• CD-RW playback compatible. Variable gain Focus error amp./tracking error amp. (to +16.9 dB)
• OFTR/BDO detection
• APC amp. n Applications
• CD/CD-ROM drive SSOP036-P-0450A Unit: mm 8.4±0.3 0.5 0.1±0.1 11.93±0.32.85±0.2 15.2±0.3 36 19 11 8 0.3±0.11 0.8 Seating plane 0.2+0.10 –0.05

AN8847SB ICs for Compact Disc/CD-ROM Player n Block Diagram 123TOUT 11CEA 17NRFDET 10ARF 9CAGC 8RFC 7EQCTL 6RFOUT 4RFN LDON19 GCTRL28 FBAL29 TEN24 TEOUT25 TBAL30 V CC2 V CC1 GND18 RV CC RGND5 V REF1 BDO ENV detectionRF AGC BCA RFDET AC EQADD amp. Amp. V REF2 PD1 LD2 FEOUT27 FEN26 OFTR16 COFTR15 BDO14 CBDO13 OFTR Standby Amp. BCA GCAADD amp. Amp. GCA33 ADD amp. 31 Amp. BCA BCA GCA GCA

ICs for Compact Disc/CD-ROM Player AN8847SB Pin No. Description

18 GND pin

19 APC & standby control pin

20 V REF1 output pin

21 Power supply pin 1

22 V REF2 output pin

23 Power supply pin 2

24 TE amp. inverted input pin 25 TE amp. output pin 26 FE amp. inverted input pin 27 FE amp. output pin

28 GCTL pin

29 FBAL control pin

30 TBAL control pin

31 Tracking signal input pin 1

32 Tracking signal input pin 2

33 Focus signal input pin 4

34 Focus signal input pin 2

35 Focus signal input pin 3

36 Focus signal input pin 1

Pin No. Description 1 APC amp. input pin 2 APC amp. output pin

3 Power supply pin (R)

4 RF addition amp. inverted input pin

5 GND pin (R)

6 RF addition amp. output pin

7 EQ characteristics control pin

8 Capacitor connection pin for HPF of AGC input

9 AGC loop filter connection pin

10 AGC output pin

11 Capacitor connection pin for HPF amp. 12 3TENV output pin

13 Capacitor connection pin for RF dark-side

14 BDO output pin

15 Capacitor connection pin for RF right-side

16 OFTR output pin

17 NRFDET output pin

Parameter Symbol Rating Unit Supply voltage R *1 V CCR 5.8 V Supply voltage 1 *1 V CC1 5.8 V Supply voltage 2 *1 V CC2 5.8 V Supply current R *1 ICCR 97.1 mA Supply current 1 *1 ICC1 7.4 mA Supply current 2 *1 ICC2 2.43 mA Power dissipation *1, *2 PD 403 mW Operating ambient temperature *1 Topr -20 to +75 °C Storage temperature *1 T stg -55 to +125 °C n Absolute Maximum Ratings Note) *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: The value for the independent package (without a heat sink) at Ta = 75°C. Parameter Symbol Range Unit Supply voltage R V CCR 4.5 to 5.5 V Supply voltage 1 V CC1 4.5 to 5.5 V Supply voltage 2 V CC2 3.0 to 5.5 V n Recommended Operating Range

AN8847SB ICs for Compact Disc/CD-ROM Player n Electrical Characteristics at Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Current consumption with no load RI TOTALR V CC1 = 5 V, VCC2 = 3.3 V 49.4 70.6 91.8 mA V EQCTL = VREF2 +0.75 V Current consumption with no load 1ITOTAL1 V CC1 = 5 V, VCC2 = 3.3 V 3.8 5.4 7.0 mA V EQCTL = VREF2 +0.75 V Current consumption with no load 2I TOTAL2 V CC1 = 5 V, VCC2 = 3.3 V 1.24 1.77 2.30 mA V REF1 output voltage V REF1 V CC1 = 5 V, VCC2 = 3.3 V 2.27 2.50 2.73 V V REF2 output voltage V REF2 V CC1 = 5 V, VCC2 = 3.3 V 1.50 1.65 1.80 V Focus error amp. Focus error amp. V FO -OF V CC1 = 5 V, VCC2 = 3.3 V -90 0 90 mV output offset voltage Focus error offset balance V FO -OFB V CC1 = 5 V, VCC2 = 3.3 V -150 0 150 mV crosstalk amount V FB = VREF2 –0.5 V V-V conversion gain V GC = VREF2 - 0.75 V Focus error amp. DG FO V CC1 = 5 V, VCC2 = 3.3 V -1.5 0 1.5 dB V-V conversion relative gain V GC = VREF2 - 0.75 V balance output 1-HV FB = VREF2 +0.5 V balance output 1-LV FB = VREF2 - 0.5 V balance relative output 2-HV FB = VREF2 +0.5 V balance relative output 2-LV FB = VREF2 - 0.5 V frequency characteristics f = 3 kHz, 60 kHz GCTRL gain ratio · 4V GC = VREF2 Tracking error amp. Tracking error amp. V TR -OF V CC1 = 5 V, VCC2 = 3.3 V -60 0 60 mV output offset voltage Tracking error offset balance VTR -OFB V CC1 = 5 V, VCC2 = 3.3 V -200 0 200 mV crosstalk amount V TB = VREF2 –0.5 V V -V conversion gain V GC = VREF2 - 0.75 V Tracking error amp. DG TR V CC1 = 5 V, VCC2 = 3.3 V -1.5 0 1.5 dB V -V conversion relative gain V GC = VREF2 - 0.75 V balance output 1-HV TB = VREF2 +0.5 V balance output 1-LV TB = VREF2 - 0.5 V

ICs for Compact Disc/CD-ROM Player AN8847SB n Electrical Characteristics at Ta = 25°C (continude) Parameter Symbol Conditions Min Typ Max Unit Tracking error amp. (continued) balance relative output 2-HV TB = VREF2 +0.5 V balance relative output 2-LV TB = VREF2 - 0.5 V Tracking error amp. G TRF V CC1 = 5 V, VCC2 = 3.3 V -4.5 ¾ 0d B frequency characteristics f = 30 kHz, 500 kHz GCTRL gain ratio · 4V GC = VREF2 RF addition amp. RF addition amp. V RAOF V CC1 = 5 V, VCC2 = 3.3 V -200 0 200 mV output offset voltage RF addition amp. addition gain GRAD V CC1 = 5 V, VCC2 = 3.3 V -1.5 0 1.5 dB RF addition amp. DG RAD1 V CC1 = 5 V, VCC2 = 3.3 V -1.0 0 1.0 dB addition relative gain 1 RF addition amp. DG RAD2 V CC1 = 5 V, VCC2 = 3.3 V -1.0 0 1.0 dB addition relative gain 2 RF addition amp. DG RAD3 V CC1 = 5 V, VCC2 = 3.3 V -1.0 0 1.0 dB addition relative gain 3 full-addition gain frequency characteristics * f = 500 kHz, 40 MHz Variable EQ characteristics EQ characteristics · 1-1 * G EQ1 -1 f = 10 kHz, 100 kHz -1.5 0 1.5 dB V EQCTL = VREF2 - 0.75 V EQ characteristics · 1-3 * G EQ1 -3 f = 1.4 MHz 2.5 4.0 5.5 dB V EQCTL = VREF2 - 0.75 V EQ characteristics · 32-1 * G EQ32 -1 f = 2 MHz -1.5 0 1.5 dB V EQCTL = VREF2 +0.75 V EQ characteristics · 32-3 * G EQ32 -3 f = 32 MHz 0.5 2.0 3.5 dB V EQCTL = VREF2 +0.75 V AGC AGC max. gain G MAGC f = 500 kHz, VIN = 20 mV[p-p] 20.0 23.0 26.0 dB AGC operating gain G AGC f = 500 kHz, VIN = 500 mV[p-p] 3.0 6.0 9.0 dB AGC compression factor DG AGC f = 500 kHz, VIN = 100 mV[p-p] -1.97 0.53 3.03 dB Note) *: The values mentioned above are subject to change according to the state of a printed circuit board, a socket, etc.

AN8847SB ICs for Compact Disc/CD-ROM Player n Electrical Characteristics at Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit NRF detection NRF det. detection level V RDA1 f = 500 kHz, VGC = VREF2 - 0.75 V 73 105 137 mV[p-p] NRF det. high-level output V RDAH f = 500 kHz, VGC = VREF2 - 0.75 V 4.2 ¾¾ V voltage NRF det. low-level output V RDAL f = 500 kHz, VGC = VREF2 - 0.75 V ¾¾ 0.8 V voltage BDO CBDO detection current I BDO V CC1 = 5 V, VCC2 = 3.3 V 1.07 1.49 1.91 mA V EQCTL = VREF2 - 0.5 V CBDO detection current ratio BIBD4 V CC1 = 5 V, VCC2 = 3.3 V 4.4 5.4 6.4 ¾ V EQCTL = VREF2 BDO high-level output voltage VBDOH V CC1 = 5 V, VCC2 = 3.3 V 4.2 ¾¾ V f = 5 kHz, rectangular wave BDO low-level output voltage VBDOL V CC1 = 5 V, VCC2 = 3.3 V ¾¾ 0.8 V f = 5 kHz, sine wave OFTR COFTR detection current I OFTR V CC1 = 5 V, VCC2 = 3.3 V 1.07 1.49 1.91 mA V LDON = VREF2 - 0.5 V COFTR detection current ratio BIOFTR4 V CC1 = 5 V, VCC2 = 3.3 V 3.1 3.9 4.7 ¾ V LDON = VREF2 OFTR high-level output voltage VOFTRH V CC1 = 5 V, VCC2 = 3.3 V 4.2 ¾¾ V f = 5 kHz, rectangular wave OFTR low-level output voltage VOFTRL V CC1 = 5 V, VCC2 = 3.3 V ¾¾ 0.8 V f = 5 kHz, rectangular wave OFTR sensitivity V OFT_S f = 470 kHz, sine wave 0 ¾ 1.2 V V LDON = VREF2 +0.75 V 3TENV CEA to ENV G CEA -ENV V CC1 = 5 V, VCC2 = 3.3 V 25.0 28.0 31.0 dB transfer characteristics CEA input impedance Z CEA V CC1 = 5 V, VCC2 = 3.3 V 6.5 8.5 10.5 k W ENV amp. offset voltage V ENVOF V CC1 = 5 V, VCC2 = 3.3 V -120 0 120 mV ENV amp. operation V ENV V CC1 = 5 V, VCC2 = 3.3 V 210 420 630 mV[p-p] f = 800 kHz, AM modulation LD APC LD operating reference voltage VLD V CC1 = 5 V, VCC2 = 3.3 V 139 170 201 mV LDON operating voltage V LDON V CC1 = 5 V, VCC2 = 3.3 V ¾¾ - 0.35 V Standby Current consumption at no load ISTBY V CC1 = 5 V, VCC2 = 3.3 V 3.61 5.16 6.71 mA in a standby mode V LDON = VREF2 - 0.75 V

ICs for Compact Disc/CD-ROM Player AN8847SB n Application Circuit Example BDO ENV detectionRF AGC BCA RFDET AC EQADD amp. Amp. OFTR Standby Amp. BCA GCAADD amp. Amp. GCA33 ADD amp. 31 Amp. BCA BCA GCA GCA 3TOUT CEA NRFDET ARF CAGC RFCV REF1 V REF1 V REF2 V REF2 V REF2 V REF2 V REF2 EQCTL RFOUT RFN LDON GCTRL FBAL TEN TEOUT TBAL V CC2 V CC1 GND RV CC RGND V REF1 V REF2 PD LD FEOUT FEN OFTR COFTR BDO CBDO A C B D F E V REF1 A +C B +D F E V REF1