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HD49235 Datasheet(PDF) 5 Page - Hitachi Semiconductor |
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HD49235 Datasheet(HTML) 5 Page - Hitachi Semiconductor |
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5 / 41 page  HD49235FS Rev.2, Aug. 1995, page 5 of 41 Pin Description (cont) Pin Polarity No. Symbol Name I/O* Connection Function H L 45 NC No connection — Open Not connected 46 NC No connection — Open Not connected 47 NC No connection — Open Not connected 48 NC No connection — Open Not connected 49 NC No connection — Open Not connected 50 NC No connection — Open Not connected 51 NC No connection — Open Not connected 52 V DD (D) V DD (digital) — Digital power supply 53 NC No connection — Open or V DD Not connected 54 PLLCK PLL clock O PLL clock output monitor 55 MRST Master reset IU Open or V DD Master reset of chip Reset 56 TEST1 TEST 1 IU Open or V DD Test pin 57 PDOUT2 Phase detect out 2 TO External RC circuit PLL auto-adjust phase detector output 58 V SS (A) V SS (analog) — Analog ground 59 AC Amp compensation AExternal RC circuit Amplifier phase compensation pin 60 AMPO Amp output AO External RC circuit PLL amplifier output 61 AMPM Amp minus input AI External RC circuit PLL amplifier inverting input 62 AMPP Amp plus input AI External RC circuit PLL amplifier non-inverting input 63 V DD (A) V DD (analog) — Analog power supply 64 PDOUT1 Phase detect out 1 TO External RC circuit PLL EFM phase detector output 65 QDSEL Q-data clock select IU Q data readout mode switching signal input Internal sync External sync 66 DSLCO DSL control output OExternal RC circuit EFM comparator slice level control output 67 DSLCI DSL control input AI External RC circuit EFM comparator slice level control input 68 EFMI EFM signal input AI EFM signal input 69 DEFCT Defect I Servo IC Defect detection signal input Defect 70 TEST2 TEST 2 IU Open or V DD Test pin |
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