AN8771NFH

ICs for MD System AN8771NFH Pre-amplifier IC for MD s Overview The AN8771NFH is an MD pre-amplifier IC of wide range of supply voltage (VCC = 2.7 V to 5.5 V). This IC can form an MD system using 3-beam pick-up in combination with the MN66614 digital signal processing LSI. 12.00±0.20 10.00±0.20 48 49 33 32 (1.25) 10.00±0.20 12.00±0.20 Unit: mm s Features Applicable for 3-beam pick-up RF signal processing Error signal generating function for servo Various status detection function Laser power control circuit 64 1 0.50 16 (1.25) 0.10±0.10 17 +0.10 0.18–0.05 +0.1 0.15–0.05 1.95±0.20 (1.00) s Applications MD Seating plane 0° to 10° 0.50±0.20 QFP064-P-1010 Note) The package of this product will be changed to lead-free type (QFP064-P-1010A). See the new package dimensions section later of this datasheet. Publication date: February 2002 SDD00018CEB 1 AN8771NFH s Block Diagram GND2 VCC2 38 37 36 48 47 46 45 44 43 42 41 40 39 35 34 49 EQ 50 51 52 53 54 55 56 57 58 VCC3 59 60 61 62 Mirror 63 circuit 33 32 DSL 3TENV Pin 20 Mode control 31 VCC1 RF amp. AGC Pin 21 NRF det. 30 OFT amp. 29 28 GND1 IV ASOF set IV IV IV VREF IV IV IV IV IV IV VREF IV IV TBAL /TOFSET FBAL /FOF set VCA VREF ASBDO VREF Pin 18 BPF VCA OFTR VREF RFBDO VCA 27 26 25 24 23 22 21 20 19 VREF 18 17 TRCRS GND4 VCA 64 10 11 12 13 14 15 s Pin Descriptions Pin No. 1 Symbol REFO Description APC reference voltage buffer output pin 2 3 4 5 6 7 8 GND3 APCREF TEMPIN+ TE...