AN8882

AN8882SB PANASONIC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 7

Technical content

ICs for Compact Disc/CD-ROM Player AN8882SB Head amplifier IC for CD-ROM drive (for 32 times speed or more) n Overview The AN8882SB is a head amplifier IC for digital servo. It can configure an efficient CD-ROM system in combination with the MN662754, 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, wide 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. (6-step changeover)
• Wide band RF amp. and AGC (f C = 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 +12 dB)
• OFTR/BDO detection
• APC amp. (LD reference voltage changeover for CD-RW playback) 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

AN8882SB ICs for Compact Disc/CD-ROM Player n Block Diagram CBDO BDO COFTR OFTR FEN FEOUT V REF2 V REF1 LD PD ENV detection Standby FLTCTL EQCTL RF AGC ADD amp. ADD amp. BDO A C D B F E OFTR 123TOUT 11CEA 17NRFDET 10ARF 9CAGC 8RFC 7EQCTL 6RFOUT RFDET AC GCA GCA BCA BCA GCA GCA BCA BCA Amp. Amp. ADD amp. ADD amp. FBAL FTEO TEOUT TEN TBAL V CC2 V CC1 GND GCTRL TFLT TVREF2 V REF2 V REF2 LDON

ICs for Compact Disc/CD-ROM Player AN8882SB Pin No. Description

18 GND pin

19 V REF2 buffer output pin

20 V REF1 output pin

21 Power supply pin 2

22 V REF2 output pin

23 TE amp. inverted input pin 24 TE amp. output pin 25 TE amp. analog SW 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 1

4 TE amp. analog SW & V REF2 buffer control pin

5 APC & standby control pin

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 1 V CC1 5.8 V Supply voltage 2 V CC2 5.8 V Supply current 1 I CC1 55.3 mA Supply current 2 I CC2 3.4 mA Power dissipation P D 340.46 mW Operating ambient temperature T opr -20 to +75 °C Storage temperature T stg -55 to +125 °C n Absolute Maximum Ratings Note) Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. Parameter Symbol Range Unit 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

AN8882SB 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 1I TOTAL1 V CC1 = 5 V, VCC2 = 3.3 V 28.1 40.1 52.1 mA V EQCTL = VREF2 - 0.3 V Current consumption with no load 2I TOTAL2 V CC1 = 5 V, VCC2 = 3.3 V 1.80 2.57 3.34 mA V EQCTL = VREF2 - 0.3 V 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 V-V conversion gain V GC = VREF2 - 0.3 V balance output 1 V FB = VREF2 +0.5 V Focus error amp. B FOH V CC1 = 5 V, VCC2 = 3.3 V -3.0 0 3.0 dB balance relative output 2 V FB = VREF2 - 0.5 V frequency characteristics f = 3 kHz, 60 kHz GCTRL gain ratio V GC = VREF2 +0.3 V Tracking error amp. Tracking error amp. V TR -OF V CC1 = 5 V, VCC2 = 3.3 V -70 0 70 mV output offset voltage V -V conversion gain V GC = VREF2 - 0.3 V balance output 1 V TB = VREF2 +0.5 V Tracking error amp. B TRH V CC1 = 5 V, VCC2 = 3.3 V -3.0 0 3.0 dB balance relative output 2 V TB = VREF2 - 0.5 V Tracking error amp. G TRF V CC1 = 5 V, VCC2 = 3.3 V -5.1 ¾- 0.6 dB frequency characteristics f = 30 kHz, 510 kHz GCTRL gain ratio V GC = VREF2 +0.3 V RF addition amp. full-addition gain 1 V EQCTL = VREF2 - 0.5 V full-addition gain 2 V EQCTL = VREF2 - 0.3 V

ICs for Compact Disc/CD-ROM Player AN8882SB n Electrical Characteristics at Ta = 25°C (continude) Parameter Symbol Conditions Min Typ Max Unit Variable EQ characteristics EQ characteristics 1 * G EQ1 f = 10 kHz, 720 kHz - 0.8 1.2 3.2 dB V EQCTL = VREF2 - 0.5 V EQ characteristics 2 * G EQ2 f = 6.5 MHz 2.7 4.7 6.7 dB V EQCTL = VREF2 - 0.3 V EQ characteristics 6 * G EQ6 f = 23 MHz, VEQCTL = VREF2 +0.5 V 2.2 4.2 6.2 dB AGC AGC max. gain G MAGC f = 500 kHz, VIN = 20 mV[p-p] 17.0 20.0 23.0 dB AGC operating gain G AGC f = 500 kHz, VIN = 500 mV[p-p] 3.0 6.0 9.0 dB NRFDET NRFDET detection level V RDA1 f = 500 kHz, VGC = VREF2 - 0.3 V 65 105 145 mV[p-p] NRFDET high-level output V RDAH f = 500 kHz, VGC = VREF2 - 0.3 V 4.2 ¾¾ V voltage NRFDET low-level output V RDAL f = 500 kHz, VGC = VREF2 - 0.3 V ¾¾ 0.8 V voltage BDO CBDO detection current I CBDO V CC1 = 5 V, VCC2 = 3.3 V 0.48 0.78 1.08 mA V EQCTL = VREF2 - 0.5 V CBDO detection current ratio BIBD10 V CC1 = 5 V, VCC2 = 3.3 V 8.7 9.7 10.7 ¾ V EQCTL = VREF2 +0.5 V BDO high-level output voltage VBDOH V CC1 = 5 V, VCC2 = 3.3 V 2.5 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, rectangular wave OFTR COFTR detection current I COFTR V CC1 = 5 V, VCC2 = 3.3 V 0.48 0.78 1.08 mA V LDON = VREF2 COFTR detection current ratio BCOFTR V CC1 = 5 V, VCC2 = 3.3 V 3.1 3.9 4.7 ¾ V LDON = VREF2 +0.75 V OFTR high-level outpit voltage VOFTRH V CC1 = 5 V, VCC2 = 3.3 V 2.5 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 1 V OFT-S1 f = 470 kHz, sin wave 0 ¾ 1.2 V V LDON = VREF2 +0.75V OFTR sensitivity 2 V OFT-S2 f = 130 kHz, sin wave, VLDON = VREF2 0 ¾ 0.4 V Note) *: The values mentioned above are subject to change according to the state of a printed circuit board, a socket, etc.

AN8882SB ICs for Compact Disc/CD-ROM Player n Electrical Characteristics at Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit 3TENV ENV amp. offset voltage V ENVOF f = 130 kHz, sin wave, VLDON = VREF2 -120 0 120 mV ENV amp. operation V ENV V CC1 = 5 V, VCC2 = 3.3 V 260 470 680 mV[p-p] f = 800 kHz, AM modulation LD-APC LD operating reference voltage 1 VLD1 V CC1 = 5 V, VCC2 = 3.3 V 134 170 206 mV V GCTL = VREF2 - 0.3 V LD operating reference voltage BLD V CC1 = 5 V, VCC2 = 3.3 V 1.08 1.15 1.22 ¾ ratio V GCTL = VREF2 +0.3 V LDON operating voltage V LDON V CC1 = 5 V, VCC2 = 3.3 V ¾¾ - 0.35 V V GCTL = VREF2 - 0.3 V Standby Current consumption with no loadISTBY V CC1 = 5 V, VCC2 = 3.3 V 3.50 5.00 6.50 mA at standby V LDON = VREF2 - 0.75 V

ICs for Compact Disc/CD-ROM Player AN8882SB n Application Circuit Example ENV detection Standby FLTCTL EQCTL RF AGC ADD amp. ADD amp. BDO OFTR RFDET AC GCA GCA BCA BCA GCA GCA BCA BCA Amp. Amp. ADD amp. ADD amp. V REF2 V REF2 CBDO BDO COFTR OFTR FEN FEOUT V REF2 V REF1 LD PD A C D B F E 3TOUT CEA NRFDET ARF CAGC RFC EQCTL RFOUT FBAL FTEO TEOUT TEN TBAL V CC2 V CC1 GND GCTRL TFLT TVREF2 LDON V REF1 A +C B +D F E V REF1 V REF2 V REF1 V REF2 V REF2