an8725fh Panasonic Corporation of North America, an8725fh Datasheet
an8725fh
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an8725fh Summary of contents
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... ICs for Optical Disk Drive AN8725FH Semiconductor laser power control IC Overview The AN8725FH is a laser driver IC that can set a laser emitting level to a maximum precision in recording and playback of an optical recording equipment such as PD, and can modulate a laser light in tune with the external signal ...
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... AN8725FH Block Diagram 40 IGND 35 5 AGND 54 4 PKMD 5 BIMD 8 6 RPHOLD 8 XWR 9 XRD 4 11 AD0 12 AD1 13 AD2 Control 14 AD3 logic X1/SX2 changeover AAF off 15 AAF RST DT0 CTL SW6 16 DT1 17 DT2 Current source for DAC 18 DT3 22 PS over DT4 PS down 23 WPW over ...
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... Selects the register to be accessed Data I/O 8-bit bus pin. D The bus to set the data to be written on a register and to read out the data register GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. AN8725FH 3 ...
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... AN8725FH Pin Descriptions (continued) Pin No. Symbol Category 20 SGND PS 21 SGND I/O 26 XLDEN INU 27 XCLR IND 28 DGND PS 29 XLDERR OUT 30 PWMSK MSC 4 Description D Pin connected to the chip substrate. D Must be used in the same potential as other GND pins. ...
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... In a playback mode, the signal output is five times that in recording (ten times is posisible by a register setting). Has offset to VNR due to being outputted through a buffer of transistors. A Laser emitting light monitor signal low-level of RPHOLD, the amplifier output has 10 times gain compared with recording, and is equipped with AFF. AN8725FH 5 ...
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... AN8725FH Pin Descriptions (continued) Pin No. Symbol Category 48 AAF MSC 49 IVOUT OUT 50 IVIN MSC 51 IPD MSC 52 CGND AGND PS 55 ERREF IN 56 VNR IN 57 DACMONI OUT SGND PS 60 SGND PS 61 SGND PS 62 RGND PS 63 RDCP1 MSC 6 Description A AAF characteristic setting pin for optical monitor circuit. ...
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... GND pin of a bias current setting circuit DAC3. Must be used in the same potential as other GND pins. A Power supply pin of a bias current setting circuit DAC3. Consumes approximately one fourth of a setting current. Must be used in the same potential as other power supply pins. AN8725FH 7 ...
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... AN8725FH Pin Descriptions (continued) Pin No. Symbol Category 78 BIDCP MSC 79 SGND PS 80 SGND PS Absolute Maximum Ratings Parameter Supply voltage Input voltage Outoput voltage Parts connecting pin voltage Supply current Pin current * 2 Power dissipation * 1 Operating ambient temperature * 1 Storage temperature Note Except for the operating ambient temperature and storage temperature, all ratings are for The power dissipation shown is for the IC package in single unit at T Refer to " ...
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... I 100 A to 200 A OFF PD VR1 PMW 3 dB, I 100 000 A PD VR1 error 0.5%, output variation: Range VR1 error 0.5%, output variation: Range AN8725FH Min Typ Max Unit ...
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... AN8725FH Electrical Characteristics at V Parameter Symbol Current amplification changeover Gain at playback G Gain at recording G Gain ratio conversion block Offset voltage V DAC1 block Resolution RES1 Integral linearity error EL1 Differential linearity error ED1 Maximum output current I Offset current I I LPF on/off gain ratio ...
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... DAC3 "00h", DAC4 [Fh] 3OF XWR to DAC3 10h to FFh 2.0 LSB, DAC4 [Fh] DAC2 "FFh", DAC4 [Fh] 4max DAC2 "00h", DAC4 [Fh] 4OF XWR to DAC4 0.5 LSB, DAC2 [FFh] DAC9 = "1Fh", DAC7 [Fh], 9max DAC1 [00h], DAC8 [0h] AN8725FH Min Typ Max Unit 250 ...
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... AN8725FH Electrical Characteristics at V Parameter Symbol DAC9 block (continued) Offset current I I LPF on/off gain ratio GR Settling time t SDA9 Supply voltage monitoring block Abnormality release supply V voltage V Abnormality supply voltage V V Abnormally emitted light detection DAC5 Resolution RES5 Integral linearity error ...
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... RPHOLD to DAC5 having reached 0.5 LSB t RPHOLD to DAC5 having reached 0.5 LSB t RPHOLD to DAC6 having reached 0.5 LSB t RPHOLD to DAC6 having reached 0.5 LSB t RPHOLD to XHFON 43 t RPHOLD to XHFON 44 AN8725FH Min Typ Max Unit 9.0 10.0 11.0 times 4.5 5.0 5.5 0.9 1.0 1.1 9.0 10.0 11.0 times 4.5 5.0 5.5 2.5 MHz 5.0 ...
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... AN8725FH Electrical Characteristics at V Parameter Symbol Recording Modulation * 1 Peak modulation signal response * 1 Bias modulation signal response Note Resistive load ( Conditions 113 117 Measure at approximately 1. LDPK pin voltage. DAC1 [FFh], DAC8 [7h] DAC9 [1Fh], DAC7 [7h], DAC4 [Fh] DAC2 [00h to 80f] ...
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... Error 0.5%, output variation: within the range between I and I AFR VOUT VIN AFW Sine wave signal equivalent to 40 mA[p-p] of current amplitude at LPF12 pin, DAC7 0h , DAC8 Fh , DAC9 00h RDCP2 pin 1 000 pF AN8725FH Min Typ Max Unit 100 ...
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... AN8725FH Electrical Characteristics at V Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol DAC1 (continued) Driving current temperature Err characteristics Offset current variation to dI temperature dI DAC9 f characteristics f DAC9 Driving current temperature ...
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... Voltage difference between abnormality detection and release of supply voltage drop PSD1 PSDH Voltage difference between abnormality detection and release of supply voltage drop PSOH PSOL Insufficiently emitted light detection Excessively emitted light detection AN8725FH Min Typ Max Unit 100 ns ...
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... AN8725FH Electrical Characteristics at V Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Comparator in abnormally emitted light detection block (continued) Input offset voltage variation to dV temperature dV Abnormally emitted light ...
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... Mask signal to mask signal 48 at RPHOLD low t RPHOLD to AAFRST 211 t AAFRST to AAFRST 212 t XCLR to shunt circuit "on" XCLR to shunt circuit "off" 50 AN8725FH Min Typ Max Unit 200 400 ns 250 500 0.8 2.0 s 250 600 ns 60 200 ns 20 200 ns 0.9 2 ...
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... AN8725FH Electrical Characteristics at V Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Control operation response * 6 AAF reset "reset" AAF reset "normal" Mask signal (wrt. ERFIL) Register output Mode changeover ...
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... LSB t XWR to DAC6 having reached 0.5 LSB t XWR to DAC6 having reached 0.5 LSB 0h, DAC8 Fh Equivalent circuit Pin 11, 100 k 12, 13, 14, 27 100 k Pin AN8725FH Min Typ Max Unit 330 600 ns 50 150 50 100 ns 35 150 1 ...
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... AN8725FH Terminal Equivalent Circuits (continued) Pin No. Symbol DGND 11 Pin 11: AD0 12 Pin 12: AD1 13 Pin 13: AD2 14 Pin 14: AD3 15 Pin 15: DT0 16 Pin 16: DT1 17 Pin 17: DT2 18 Pin 18: DT3 19 Pin 19: DGND 20 Pin 20: SGND 21 Pin 21: SGND 22 Pin 22: DT4 23 Pin 23: DT5 24 Pin 24: DT6 25 Pin 25: DT7 26 XLDEN ...
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... ICs for Optical Disk Drive Terminal Equivalent Circuits (continued) Pin No. Symbol 30 Pin 30: PWMSK 31 Pin 31: ERFIL 32 XHFON 33 DGND AGND RREF 38 LPF11 Equivalent circuit Pin 30 Refer to pin 29 Refer to pin 9 50 AN8725FH DV CC Schmitt-trigger DGND AGND AGND AV CC Pin 38, 43 IGND 23 ...
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... AN8725FH Terminal Equivalent Circuits (continued) Pin No. Symbol 39 LPF12 40 Pim 40 : IGND 41 Pim 41 : SGND 42 Pim 42 : SGND 43 LPF91 44 LPF92 DETMONI 47 PWRMONI 24 ICs for Optical Disk Drive Equivalent circuit Pin 39, 44 Refer to pin 38 Refer to pin Pin 45 IGND AGND CV CC ...
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... ICs for Optical Disk Drive Terminal Equivalent Circuits (continued) Pin No. Symbol 48 AAF 49 IVOUT 50 IVIN 51 IPD 52 CGND Equivalent circuit AN8725FH CGND CGND CGND CGND 25 ...
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... AN8725FH Terminal Equivalent Circuits (continued) Pin No. Symbol AGND 55 Pim 55 : ERREF 56 Pim 56 : VNR 57 DACMONI Pim 59 : SGND 60 Pim 60 : SGND 61 Pim 61 : SGND 62 Pim 62 : RGND 63 Pim 63 : RDCP1 64 Pim 64 : RDCP2 26 ICs for Optical Disk Drive Equivalent circuit Pin 55, 56 Refer to pin 45 ...
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... ICs for Optical Disk Drive Terminal Equivalent Circuits (continued) Pin No. Symbol 65 LDRP 66 N. LDPK 70 XLDPK Equivalent circuit Pin 70 AN8725FH SGND RGND AV CC Pin 69, 74 SGND PBGND SGND 27 ...
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... AN8725FH Terminal Equivalent Circuits (continued) Pin No. Symbol 71 PKGND 72 PKV CC 73 PKDCP 74 LDBI 75 XLDBI 76 BIGND 77 BIV CC 78 BIDCP 79 SGND 80 SGND Application Notes curves of QFP080-P-1212 D a 2.000 1.920 1.800 1.600 1.400 1.200 1.000 0.800 0.600 0.400 0.200 0.000 28 Equivalent circuit Pin 72 ...
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... AD defined to XRD 9 t XRD to DT defined 10 t XWR to AD released 6 t XWR to DT released 7 t XRD to AD released 13 t XRD to DT released 14 AN8725FH LH 90% In read t 13 Read address Read data t 11 Min Typ Max Unit ...
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... AN8725FH Application Notes (continued) 3. I/O specifications Parallel interface 1) I/O level is CMOS. 2) Transfers a digital signal to DAC and each mode setting register with 4 addresses, 8 data and 2 control signals. Address signal Data signal Control signal 3) Write can be done at the rise of XWR. However, selection of a write register can be done at the fall of XWR. ...
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... RD5 WR6 RD6 WR7 RD7 WR8 RD8 WR9 RD9 WRA RDA WRB RDB WRC RDC WRE RDE WRF RDF AN8725FH 4 DAC7 DAC78 "0" register DAC8 4 DAC1 8 DAC1 "1" register DAC2 8 DAC2 "2" register DAC3 8 DAC3 "3" register ...
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... AN8725FH Application Notes (continued) 5. Register circuit configuration 1) DAC1, DAC2, DAC3, DAC4, DAC9 8-bit DT0 White DAC WR* 8-bit Read DAC RD* 2) DAC7, DAC8 8-bit DT0 White DAC78 ( WR0 8-bit Read DAC78 ( RD0 32 D-FF 8-bit D Q DAC ...
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... Selector D-FF 8-bit Q Data ( 3-state driver RPHOLD low 8-bit output A Data ( RPHOLD high output B D-FF 8-bit Data ( 3-state driver 8-bit Data ( AN8725FH Insufficiently Data ( emitted light DAC5 4-bit Excessively Data ( emitted light DAC6 4-bit 33 ...
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... AN8725FH Application Notes (continued) 5. Register circuit configuration (continued) 4) CNTL1, CNTL2, CNTL3, ERRMSK, ERRFAC, DUMY, LDDENB 8-bit DT0 White data ( DT7 WR* 8-bit Read data ( RD* 34 ICs for Optical Disk Drive D-FF 8-bit D Q Data ( 3-state driver 8-bit Data ( ...
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... R10 70 XLDPK 71 PKGND C15 PKV 72 CC C16 tantalum 73 PKDCP 74 LDBI R11 75 XLDBI 76 BIGND C17 BIV 77 CC C18 tantalum 78 BIDCP 79 SGND 80 SGND AN8725FH R4 40 IGND C5 39 LPF12 R2 38 LPF11 37 RREF AGND DGND 32 XHFON ERFIL (Rin2 PWMSK (Rin1) ...
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... AN8725FH Application Circuit Example (continued) Resistance and capacitance Symbol Resistor value R10 3 R11 3 (Rin1) 10 (Rin2 ICs for Optical Disk Drive Unit Symbol Resistor value C10 C11 k C12 ...