ICs for Optical Disk Drive AN8725FH Semiconductor laser power control IC ■ Overview Unit: mm 14.00±0.20 12.00±0.20 60 41 40 (1.25) 12.00±0.20 14.00±0.20 61 ■ Features 21 0.50 20 0.18 +0.10 –0.05 Seating plane (1.00) +0.10 1 (1.25) 0.15 –0.05 80 0.90±0.10 1.95±0.20 • Digital setting of playback current, peak current, bias current and abnormal light emitting level • Peak current and bias current can be modulated by the external signal. • Driving current set-up (digital set-up) For playback: 8-bit + 4-bit (0 mA to 80 mA) 5-bit + 4-bit (0 mA to 150 mA) For peak: 4-bit + 8-bit (0 mA to 150 mA) For bias: 4-bit + 8-bit (0 mA to 150 mA) • Laser output light monitoring circuit built-in • Abnormal light emitting detecting function built-in: Possible to set up excessive and insufficient light emitting levels with 4-bit DAC for playback and recording, respectively. • Supply voltage abnormality detection: Voltage down (3.9 V or less), voltage up (6.1 V or more) 0.90±0.10 0.10±0.10 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. 0° to 10° 0.50±0.20 QFP080-P-1212 ■ Applications • Optical disk drive 1 AN8725FH ICs for Optical Disk Drive AGND PKMD BIMD RPHOLD XWR XRD 5 6 8 AD1 AD2 AD3 64 63 RDCP1 73 RDCP2 PKDCP BIDCP 78 DAC7 43 Playback current DAC8 65 SW1 39 LPF1 38 LPF off 8 9 11 12 LPF91 LDRP LPF12 LPF11 Peak current DAC2 SW2 Current amplification 70 XLDPK 69 LDPK Bias current DAC3 SW3 Current amplification 75 XLDBI 74 LDBI 8 13 14 Control logic 15 DT0 Shunt circuit SW5 X1/SX2 changeover AAF off AAF RST CTL SW6 16 I/V conversion Current amplification X1, X10 DAC1 DAC9 DAC4 DT1 17 DT2 AAF Current source for DAC 18 SW6 Buffer DT3 PS over PS down DT4 23 Supply voltage monitoring WPW over WPW down RPW over RPW down Sleep 24 DT6 25 DT7 4 26 XLDEN Sleep circuit Insufficient light emission DAC5 Abnormal light emitting detection 27 XCLR 29 4 XLDERR 32 Excessive light emission DAC6 XHFON 37 RREF 57 DACMONI 55 ERREF ERFIL 31 PWMSK 30 DAC56SW Reference voltage source (1.25 V) 1 20 21 41 42 59 60 61 79 80 DT5 SGND 22 2 LPF92 Peak bias current DAC4 4 AD0 DAC8 LPF off Playback current DAC1 8 DAC2 LPF9 4 4 DAC3 SW1 44 Playback current DAC9 54 RVCC Playback current DAC7 4 5 68 62 IGND 40 35 RGND BIGND 76 BIVCC 77 71 PKVCC 72 AVCC 58 45 PKGND ■ Block Diagram 51 IPD 50 IVIN 49 IVOUT 48 AAF 47 PWRMONI 46 DETMONI 56 VNR 36 VC 53 CVCC 52 CGND 34 DVCC 9 33 28 19 10 3 2 DGND ICs for Optical Disk Drive AN8725FH ■ Pin Descriptions Note) Description on notations of "Category" in the following list: IN : Input pin I/O : Input/output pin (pull-down with 100 k Ω) IND : Input pin (pull-down with 100 kΩ) PS : Power supply/GND pin INU : Input pin (pull-up with 100 kΩ) MSC : Parts connecting pin, etc. OUT: Output pin A: Analog function Pin No. Symbol 1 SGND D: Digital function Category PS D Description Pin connected to the chip substrate. Must be used in the same potential as other GND pins. 2 DGND PS D GND pin exclusive for a logic circuit. 3 DGND PS D Must be used in the same potential as other GND pins. 4 PKMD IND D Peak current modulation signal input pin. In high-level, the current set up with DAC2 is superimposed on LD. 5 BIMD IND D Bias current modulation signal input pin. In high-level, the current set up with DAC3 is superimposed on LD. 6 RPHOLD IND D Record gate signal input pin. Inputs a low-level in playback and a high-level in recording. Switches an amp. of light monitoring signal, abnormally emitted light detection level and on/off of HF module. 7 XWR INU D Register writing signal pin. Selects a register specified by address in a fall edge and writes a bus data on the register of the address specified in the rise edge. 8 XRD INU D Register read-out signal pin. Register data of the address specified in low appears on the bus. 9 DVCC PS D Power supply pin exclusive for a logic circuit. Must be used in the same potential as other power supply pins. 10 DGND PS D GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. 11 AD0 IND D 4-bit address pin for registers. 12 AD1 IND D Selects the register to be accessed. 13 AD2 IND D 14 AD3 IND D 15 DT0 I/O D Data I/O 8-bit bus pin. 16 DT1 I/O D The bus to set the data to be written on a register and to read out the data 17 DT2 I/O D of a register. 18 DT3 I/O D 19 DGND PS D GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. 3 AN8725FH ICs for Optical Disk Drive ■ Pin Descriptions (continued) Pin No. Symbol Category Description 20 SGND PS D Pin connected to the chip substrate. 21 SGND PS D Must be used in the same potential as other GND pins. 22 DT 4 I/O D Data I/O 8-bit bus pin. 23 DT 5 I/O D The bus to set the data to be written on a register and to read out the data 24 DT 6 I/O D of a register. 25 DT 7 I/O D 26 XLDEN INU D LD enable input pin. In a high-level or open mode, LD becomes off and open. This state is suited to check the LD characteristics in keeping a connection to the IC. At the time power off, both ends of LD are short-circuited by the IC for protection. In the low-level, it returns to a normal operation. 27 XCLR IND D Clear signal input pin. Sets an LDDENB register to "0" in the low-level and presets the status of each DAC and each switch to an initial state as defined separately. But six registers for an abnormal detection are not cleared. In this state, each output of a current amplification 1, 2, 3 are in the off state and a shunt circuit becomes on to continue to protect LD. Setting this pin to the high-level and the LDDENB register to "1", it returns to a normal operation. 28 DGND PS D GND pin exclusive for a logic circuit. Must be used in the same potential as other GND pins. 29 XLDERR OUT D Laser abnormality detection output pin. When a supply voltage or a laser light emission exceeds a fixed range, it goes to low-level. A supply voltage abnormality is detected for the voltage drop (3.9 V or less) or voltage rise (6.1 V or more). And an abnormal light emission is detected for an excessive or weaker light emission set up by 4-bit DAC5 and DAC6. This abnormality detection is latched so as to prevent it from being reset until ERRCLR register is set to "1". Further, each DAC output of a playback current, a peak current and a bias current can be set to off, a shunt circuit be set to on and LD between anode and GND be short-circuited by 100 Ω so that LD can be protected. This protection function is latched to keep it from being reset until ERRCLR is set to "1". Selection of either operation or non-operation for this operation can be made by an STPMSK register. 30 PWMSK MSC D The pin to set up the mask time for a transitional response output that comes out at switching a detection level of excessive or insufficient light emission by RPHOLD. Set a mask time by an external capacitor between PWMSK and DGND and the resistor (10 kΩ) inside the IC. This pin is for a schmitt-trigger input. 4 ICs for Optical Disk Drive AN8725FH ■ Pin Descriptions (continued) Pin No. Symbol 31 ERFIL Category MSC D Description Filter setting pin to avoid a detection error of laser abnormality caused by noise. Connect an external capacitor between ERFIL and DGND, and set a filter together with a resistor (10 kΩ) inside the IC. This pin is for schmitt-trigger input. 32 XHFON OUT D HF module on/off control signal output pin. High corresponds to off and low to on. 33 DGND PS D GND pin exclusive to a logic circuit. Must be used in the same potential as other GND pins. 34 DVCC PS D Power supply pin exclusive to a logic circuit. Must be used in the same potential as other power supply pins. 35 AGND PS A GND pin exclusive to a analog circuit. Must be used in the same potential as other GND pins. 36 VC MSC A Output pin for reference voltage (1.25 V). Connects a capacitor C between this pin and AGND for de-coupling. 37 RREF MSC A Reference resistor connecting pin to determine an output current for each DAC. Connect a resistor of 10 kΩ between RREF and AGND. 38 LPF11 MSC A LPF characteristic setting pin for DAC1 and DAC8. 39 LPF12 MSC A Connect an external resistor between LPF11 and LPF12, and then capacitor between LPF12 and IGND to set up a cutoff frequency. 40 IGND PS A GND pin for playback power supply setting DAC1, DAC9 and disturbance reduction LPF. Must be used in the same potential as other GND pins. 41 SGND PS D Pin connected to the chip substrate. 42 SGND PS D Must be used in the same potential as other GND pins. 43 LPF91 MSC A LPF characteristic setting pin for DAC9 and DAC7. 44 LPF92 MSC A Connect an external resistor between LPF91 and LPF92 and then capacitor between LPF92 and IGND to set a cutoff frequency. 45 AVCC PS A Power supply pin for an analog circuit, a reference supply voltage circuit, etc. Must be used in the same potential as other power supply pins. 46 DETMONI OUT A Pin to monitor a signal for detecting abnormally emitted light. 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. 47 PWRMONI OUT A Laser emitting light monitor signal. In a low-level of RPHOLD, the amplifier output has 10 times gain compared with recording, and is equipped with AFF. 5 AN8725FH ICs for Optical Disk Drive ■ Pin Descriptions (continued) Pin No. Symbol 48 AAF Category MSC A Description AAF characteristic setting pin for optical monitor circuit. Connect an external resistor, capacitor between AAF and IVOUT and set up a cutoff frequency. 49 IVOUT OUT A I to V conversion signal output pin. Connect an external variable resistor between IVIN and IVOUT. 50 IVIN MSC A I to V conversion resistor connection pin. Connect an external variable resistor between IVIN and IVOUT. 51 IPD MSC A Pin photo diode (PD) connection pin. Connect a pin photo diode for detecting a semiconductor laser emitting light. Connect anode to this pin. Applicable to a source-type PD which has a typical value of 40 µA to 160 µA output in object lens output power of 1 mW. 52 CGND PS A GND pin in an optical monitor circuit. Must be used in the same potential as other GND pins. 53 CVCC PS A Power supply pin in an optical monitor circuit. Must be used in the same potential as other power supply pins. 54 AGND PS A GND pin exclusive to a analog circuit. Must be used in the same potential as other GND pins. 55 ERREF IN A Abnormally emitting light detecting range setting pin. Sets a full scale voltage of DAC5 and DAC6. A setting range is VNR or more and input range of an external ADC or less. 56 VNR IN A Reference level input pin for PWRMONI output. Input a reference voltage of 1.25 V of an external ADC. 57 DACMONI OUT A DAC5, DAC6 monitor pin. DAC5 voltage is outputted when DAC56 SW register is low, DAC6 voltage is outputted when DAC6 voltage is high. 58 AVCC PS A Power supply pin for an analog circuit, a reference supply voltage circuit, etc. Must be used in the same potential as other power supply pins. 59 SGND PS D Pin connected to the chip substrate. 60 SGND PS D Must be used in the same potential as other GND pins. 61 SGND PS D 62 RGND PS A GND pin for the lead current setting DAC7 and DAC8. Must be used in the same potential as other GND pins. 63 RDCP1 MSC A Pin to connect a de-coupling capacitor to protect the output current of DAC7, the read current setting circuit, from disturbance by a switching noise such as peak current. (Connects a capacitor between RDCP1 and RGND.) 6 ICs for Optical Disk Drive AN8725FH ■ Pin Descriptions (continued) Pin No. Symbol 64 RDCP2 Category MSC A Description Pin to connect a de-coupling capacitor to protect the output current of DAC7, the read current setting circuit, from disturbance by a switching noise such as peak current. (Connects a capacitor between RDCP2 and RGND.) 65 LDRP OUT A Source type read current (DAC1, DAC7, DAC8, DAC9) output pin. Possible to set up the range of 0 mA to 150 mA in the precision of 8-bit + 4-bit + 5-bit + 4-bit. Output voltage range is 1.0 V to 3.5 V. 66 N.C. N.C. pin. 67 N.C. Open the pin or connect to GND. 68 RVCC PS A Power supply pin for read current setting DAC7, DAC8. Consumes approximately a quarter of the necessary read current. Must be used in the same potential as other power supply pins. 69 LDPK OUT A Source-type peak current (DAC2) output pin. Possible to set the range of 0 mA to 150 mA in the accuracy of 8-bit. The output voltage range is 1.0 V to 3.2 V. 70 XLDPK IN A Sink-type peak current output pin. Approximately three fourths of LDRK output current are outputted from this pin. 71 PKGND PS A GND pin of DAC2 in the peak current setting circuit. Must be used in the same potential as other GND pins. 72 PKVCC PS A DAC2 power supply pin in the peak current setting circuit. Consumes approximately a quarter of the setting current. Must be used in the same potential as other power supply pins. 73 PKDCP MSC A Pin to connect a de-coupling capacitor to avoid the output current disturbance, which is caused by a switching noise such as peak current, in peak current setting circuit DAC2. (Connects a capacitor between PKDCP and PKGND.) 74 LDBI OUT A Source-type bias current (DAC3) output pin. Possible to set the range of 0 mA to 150 mA in the accuracy of 8-bit. Output voltage range is 1.0 V to 3.2 V. 75 XLDBI IN A Sink-type peak current output pin. Approximately three fourths of LDBI output current are outputted from this pin. 76 BIGND PS A GND pin of a bias current setting circuit DAC3. Must be used in the same potential as other GND pins. 77 BIVCC PS 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. 7 AN8725FH ICs for Optical Disk Drive ■ Pin Descriptions (continued) Pin No. Symbol 78 BIDCP Category MSC A Description Pin to connect a de-coupling capacitor to avoid the output current disturbance, which is caused by a switching noise such as bias current, of a bias current setting circuit DAC3. (Connects a capacitor between BIDCP and BIGND.) 79 SGND PS D Pin connected to the chip substrate. 80 SGND PS D Must be used in the same potential as other GND pins. ■ Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage VCC 7.0 V Input voltage VIN − 0.4 to VCC +0.4 V Outoput voltage VOUT − 0.4 to VCC +0.4 V Parts connecting pin voltage VMSC − 0.4 to VCC +0.4 V ICC 80 mA IPIN −100 to +100 mA PD 600 mW Topr −20 to +75 °C Tstg −55 to +150 °C Supply current Pin current Power dissipation *2 Operating ambient temperature Storage temperature *1 *1 Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: The power dissipation shown is for the IC package in single unit at Ta = 75°C. Refer to "■ Application Notes, 1. PD Ta curves of QFP080-P-1212". ■ Recommended Operating Range Parameter Supply voltage Symbol Range Unit VCC 4.50 to 5.50 V ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C Parameter Symbol Conditions Min Typ Max Unit Supply current Supply current ICC XCLR = low, digital I/O pin = open, IPD = 0 µA 20 30 mA Sleep mode supply current ISLP Sleep = 1, IPD = 0 µA 3 4 mA 1.20 1.25 1.30 V VCC = 4.5 V to 5.5 V, IREF = 0 mA ± 15 mV VCC = 4.5 V to 5.5 V IREF = −1 mA to + 1 mA ± 20 IREF = −1.5 mA, difference from IREF = 0 mA ± 50 Reference voltage block Reference voltage output Reference voltage variation Maximum output current 8 VREF ∆VREF ∆VOM mV ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit Digital block High-level input voltage VIH To be applied to a digital input pin 0.8 × VCC V Low-level input voltage VIL To be applied to a digital input pin 0.2 × VCC V High-level input voltage (Schmitt-trigger input) VIHSHC To be applied to PWMSK, ERFIL pin 0.8 × VCC V Low-level input voltage (Schmitt-trigger input) VILSHC To be applied to PWMSK, ERFIL pin 0.2 × VCC V High-level output voltage VOH IOH = −2 mA 0.8 × VCC V Low-level output voltage VOL1 IOL = +2 mA 0.2 × VCC V VOL2 IOL = +0.5 mA 0.4 Input pull-up, pull-down resistance RPD Pull-up: VIL = 0 V Pull-down: VIH = 5.0 V 75 100 125 kΩ Input leak ILKH To be applied to a digital input pin, VOH = 5.25 V 80 µA ILKL To be applied to a digital input pin, VOL = 0 V 10 −15 15 −40 0 40 −15 15 VR1 = 1 kΩ, difference from an ideal value at IPD = 100 µA to 2 000 µA −20 0 20 GPMR /GPMW , output = VNR +0.6 V to 2.0 V 9.0 10.0 11.0 times V Entire optical monitor Offset voltage at playback VPMOFR VR1 = 1 kΩ, IPD = 0 mA VR1 = 1 kΩ, difference from an ideal value at IPD = 100 µA to 200 µA Offset voltage at recording Gain ratio VPMOFW VR1 = 1 kΩ, IPD = 0 mA GR VCC × VCC × 0.73 0.78 mV mV Maximum output voltage VPM max Minimum output voltage VPM min VNR− 0.015 V f characteristics at playback fPMR AAF AAF-off VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 200 µA OFF 4 6 MHz 6 7.5 MHz f characteristics at recording fPMW VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 2 000 µA Settling time at playback tPMSETR VR1 = 1 kΩ, error ±0.5%, output variation: Range of 0 V to 2 V 200 400 ns Settling time at recording tPMSETW VR1 = 1 kΩ, error ±0.5%, output variation: Range of 0 V to 2 V 200 400 ns 9 AN8725FH ICs for Optical Disk Drive ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit Current amplification changeover Gain at playback GIPDR Reg7 = "80h", IPD = 40 µA to 240 µA 9.0 10.0 11.0 times Gain at recording GIPDW Reg7 = "C0h", IPD = 200 µA to 3 200 µA 0.9 1.0 1.1 times Gain ratio GRIPD GIPDR /GIPDW 9.0 10.0 11.0 times VIVOF VR1 = 0 Ω, IPD = 0 mA −15 15 mV RES1 8 bit Integral linearity error EL1 −1.0 10.0 LSB Differential linearity error ED1 −1.0 1.5 LSB Maximum output current I1max DAC1 = "FFh", DAC8 [Fh], DAC7 [0h], DAC9 [00h] 70 80 90 mA Offset current I1OF1 "00h" LPF-on, DAC8 [Fh], DAC7 [0h], DAC9 [00h], DAC7, DAC8 characteristics included −1 1 mA I1OF2 "00h" LPF-off, DAC8 [Fh], DAC7 [0h], DAC9 [00h] −250 250 µA 0.95 1 1.05 times 400 800 ns RES7 4 bit Integral linearity error EL7 −1.0 1.0 LSB Differential linearity error ED7 − 0.5 0.5 LSB Maximum output current I7max Set to DAC7 = "Fh", DAC9 [1Fh], DAC1 [00h], DAC8 [0h] 133 150 170 mA Minimum output current I7min Set to DAC7 = "0h", − 0.1 DAC9 [1Fh], DAC1 [00h], DAC8 [0h] 0 0.1 mA Settling time tSDA7 XWR ↑ to DAC7 [0h to Fh], DAC9 [1Fh], ±0.5 LSB, DAC1 [00h], DAC8 [0h] 50 500 ns RES8 4 bit Integral linearity error EL8 −1.0 1.0 LSB Differential linearity error ED8 − 0.5 0.5 LSB I to V conversion block Offset voltage DAC1 block Resolution LPF on/off gain ratio Settling time GRDAL GLPFON /GLPFOFF , input amplitude 0 V to 2 V tSDA1 XWR ↑ to DAC1 [10h to 8Fh], ±2 LSB range, DAC7 [0h], DAC8 [Fh], DAC9 [00h] LPF-off, LPF11 pin open, RDCP2 pin open DAC7 block Resolution DAC8 block Resolution 10 ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit Maximum output current I8max Set to DAC8 = "Fh", DAC1 [FFh], DAC9 [1Fh], DAC7 [0h] 70 80 90 mA Minimum output current I8min Set to DAC8 = "0h", DAC1 [FFh], DAC9 [1Fh], DAC7 [0h] 4 5 6 mA Settling time tSDA8 XWR ↑ to DAC8 [0h to Fh], DAC1 [80h], ±0.5 LSB, DAC9 [00h], DAC7 [0h] 50 250 ns RES2 8 bit Integral linearity error EL2 −1.0 5.0 LSB Differential linearity error ED2 −1.0 1.0 LSB Maximum output current I2max DAC2 = "FFh", DAC4 [Fh] 133 150 170 mA Offset current I2OF DAC2 = "00h", DAC4 [Fh] − 0.1 0.1 mA Settling time tSDA2 XWR ↑ to DAC2 [10h to FFh], ±2.0 LSB, DAC4 [Fh] 100 250 ns RES3 8 bit Integral linearity error EL3 −1.0 5.0 LSB Differential linearity error ED3 −1.0 1.0 LSB Maximum output current I3max DAC3 = "FFh", DAC4 [Fh] 133 150 170 mA Offset current I3OF DAC3 = "00h", DAC4 [Fh] − 0.1 0.1 mA Settling time tSDA3 XWR ↑ to DAC3 [10h to FFh], ±2.0 LSB, DAC4 [Fh] 200 450 ns RES4 4 bit Integral linearity error EL4 −1.0 1.0 LSB Differential linearity error ED4 −1.0 1.0 LSB Maximum output current I4max DAC2 = "FFh", DAC4 [Fh] 133 150 170 mA Offset current I4OF DAC2 = "00h", DAC4 [Fh] − 0.1 0.1 mA Settling time tSDA4 XWR ↑ to DAC4 [0h to Fh], ±0.5 LSB, DAC2 [FFh] 300 600 ns RES9 5 bit Integral linearity error EL9 −1.0 1.0 LSB Differential linearity error ED9 −1.0 1.0 LSB Maximum output current I9max 133 150 170 mA DAC8 block (continued) DAC2 block Resolution DAC3 block Resolution DAC4 block Resolution DAC9 block Resolution DAC9 = "1Fh", DAC7 [Fh], DAC1 [00h], DAC8 [0h] 11 AN8725FH ICs for Optical Disk Drive ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit I9OF1 "00h" LPF-on, DAC7 [Fh], DAC8 [0h], DAC1 [00h], DAC7, DAC8 characteristics included −2.0 2.0 mA I9OF2 "00h" LPF-off, DAC7 [Fh], − 0.85 DAC8 [0h], DAC9 [00h], DAC7, DAC8 characteristics included 0.85 GLPFON /GLPFOFF , input amplitude 0 V to 2 V 0.95 1 1.05 times XWR ↑ to DAC9 [00h to 1Fh] ±2 LSB range, DAC7[Fh], DAC8 [0h], LPF9-off, LPF91 pin open, RDCP1 pin open 400 800 ns V DAC9 block (continued) Offset current LPF on/off gain ratio Settling time GRDA9 tSDA9 Supply voltage monitoring block Abnormality release supply VPSDL Sweep VCC from low to high 3.9 4.2 4.5 voltage VPSOL Sweep VCC from high to low 5.5 5.8 6.1 Abnormality supply voltage VPSDH Sweep VCC from high to low 3.6 3.9 4.2 VPSOH Sweep VCC from low to high 5.8 6.1 6.4 V Abnormally emitted light detection DAC5 Resolution RES5 4 bit Integral linearity error EL5 − 0.5 0.5 LSB Differential linearity error ED5 − 0.5 0.5 LSB Offset voltage V5OF1 DAC5 = set to "Fh" and difference to ERREF pin −20 20 mV V5OF2 DAC5 = set to "0h" and difference to VNR pin, at ERREF − VNR = 2.0 V 105 125 145 tSDA5 XWR ↑ to DAC5 [0h to Fh], ±0.5 LSB 0.5 1.5 µs Settling time Abnormally emitted light detection DAC6 Resolution RES6 4 bit Integral linearity error EL6 − 0.5 0.5 LSB Differential linearity error ED6 − 0.5 0.5 LSB Offset voltage V6OF1 DAC6 = set to "Fh" and difference to ERREF pin −20 20 mV V6OF2 DAC6 = set to "0h" and difference to VNR pin, at ERREF − VNR = 2.0 V 105 125 145 tSDA6 XWR ↑ to DAC6 [0h to Fh] ±0.5 LSB 0.5 1.5 Settling time 12 µs ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit VEROFR In playback, DETMONI pin, IPD = 0 µA −40 60 mV VEROFW In recording, DETMONI pin, IPD = 0 µA −50 50 Abnormally emitted light detection optical monitor block Offset voltage Gain Gain ratio GERR1 In playback, addr. "9": D4 = "0", IPD = 100 µA to 200 µA 9.0 10.0 11.0 GERR2 In playback, addr. "9": D4 = "1", IPD = 100 µA to 200 µA 4.5 5.0 5.5 GERW In recording, DETMONI pin, IPD = 100 µA to 2 000 µA 0.9 1.0 1.1 GERR1 GERW 9.0 10.0 11.0 GERR2 GERW 4.5 5.0 5.5 times times f characteristics at playback fERR VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 200 µA 2.5 MHz f characteristics at recording fERW VR1 = 1 kΩ, −3 dB, IPD = 100 µA to 2 000 µA 5.0 MHz Data write to XLDERR ↓ t203 XWR ↑ to XLDERR ↓ 20 60 ns Data write to XLDERR ↑ t204 XWR ↑ to XLDERR ↑ 25 60 ns Data write to sleep mode t205 XWR ↑ to sleep mode 4 9 µs Data write to normal mode t206 XWR ↑ to normal mode 3 8 µs RPHOLD ↑ to DAC5 R → W t39 RPHOLD ↑ to DAC5 W, at having reached ±0.5 LSB 0.40 2.5 µs RPHOLD ↓ to DAC5 W → R t40 RPHOLD ↓ to DAC5 R, at having reached ±0.5 LSB 0.40 2.5 µs RPHOLD ↑ to DAC6 R → W t41 RPHOLD ↑ to DAC6 W, at having reached ±0.5 LSB 0.40 2.5 µs RPHOLD ↓ to DAC6 W → R t42 RPHOLD ↓ to DAC6 R, at having reached ±0.5 LSB 0.40 2.5 µs RPHOLD ↑ to HF module signal t43 RPHOLD ↑ to XHFON ↑ 18 30 ns RPHOLD ↓ to HF module signal t44 RPHOLD ↓ to XHFON ↓ 17 30 ns Control operation response 13 AN8725FH ICs for Optical Disk Drive ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) Parameter Symbol Conditions Min Typ Max Unit ns Recording Modulation Peak modulation signal response *1 Bias modulation signal response *1 t113 PKMD ↑ to LDPK ↑ 50% delay 18 30 t114 PKMD ↓ to LDPK ↓ 50% delay 17 30 t115 LDPK ↑ 50% to LDPK ↓ 50% t116 LDPK ↑ 10% to LDPK ↑ 90% 6 9 t117 LDPK ↓ 90% to LDPK ↓ 10% 4 6 t123 BIMD ↑ to LDBI ↑ 50% delay 18 30 t124 BIMD ↓ to LDBI ↓ 50% delay 17 30 t125 LDBI ↑ 50% to LDBI ↓ 50% t126 LDBI ↑ 10% to LDBI ↑ 90% 6 9 t127 LDBI ↓ 90% to LDBI ↓ 10% 5 8 t112 −3 t112 −1 t112 +1 ns t122 −3 t122 −1 t122 +1 Note) *1: Resistive load (at 15 Ω) Conditions of t113 to t117 Measure at approximately 1.75 V of LDPK pin voltage. DAC1 [FFh], DAC8 [7h] DAC9 [1Fh], DAC7 [7h], DAC4 [Fh] DAC2 [00h to 80f] Conditions of t123 to t127 Measure at approximately 1.75 V of LDPK pin voltage. DAC1 [FFh], DAC8 [7h] DAC9 [1Fh], DAC7 [7h], DAC4 [Fh] DAC3 [00h to 80f] • Design reference data Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit ∆VTEM VREF = 0 V, Ta = −20°C to +75°C ±30 mV Low → high input hysteresis (Schmidt trigger input) VLHHYS To be applied to PWMSK, ERFIL pin 1.0 V High → low input hysteresis (Schmidt trigger input) VHLHYS To be applied to PWMSK, ERFIL pin 1.0 V ∆VPMOFR In playback, VR1 = 1 kΩ ∆T IPD = 10 µA to 200 µA Ta = −20°C to +75°C 55 200 µV °C ∆VPMOFW In recording, VR1 = 1 kΩ ∆T IPD = 100 µA to 2 000 µA Ta = −20°C to +75°C 30 150 Reference voltage block Reference voltage temperature characteristics *2 Digital block Entire optical monitor Offset voltage temperature variation Note) *2: Difference between VREF min. and VREF max. within the range of Ta = −20°C to +75°C. 14 ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit Ta = −20°C to +75°C −3 3 % S1PMR In playback, AAF-off rise 13 18 V/µs S1PMW In recording, rise 35 45 tPMSW1 × 10 → × 1, at having reached ±0.5% 100 300 tPMSW2 × 1 → × 10, at having reached ±0.5% 200 500 fPMROF In playback, −3 dB, VR1 = 1 kΩ, AAF filter on, IPD 100 µA to 200 µA 40.8 kHz dGIPDR In playback, IPD = 60 µA to 240 µA, Ta = −20°C to +75°C −3 3 % dGIPDW In recording, IPD = 0.2 mA to 3.2 mA, Ta = −20°C to +75°C −3 3 GIPDR In playback, IPD = 60 µA to 240 µA, GPMW In recording, IPD = 0.2 mA to 3.2 mA, Ta = −20°C to +75°C −3 3 % tIPDSW1 × 10 → × 1, at having reached ±0.5% 100 300 ns tIPDSW2 × 1 → × 10, at having reached ±0.5% 200 500 dVIVOF VR1 = 0 Ω, IPD = 0 µA, dT Ta = −20°C to +75°C 10 50 µV °C Entire optical monitor (continued) Gain ratio variation to temperature Slew rate Signal changeover response f characteristics d GPMR GPMW ns Current amplification block Gain variation to temperature Gain ratio variation to temperature Signal changeover response d I to V conversion Offset voltage variation to temperature Slew rate SlIV 20 34 V/µs Open loop gain GIV 50 dB Zero-cross frequency f0IV Output amplitude at 1 V[p-p] 8 MHz tIVSET Error ±0.5%, output variation: within the range of 0 V to 2 V 100 200 ns On resistance at playback RAFR 0 Ω between IVOUT and IVIN 175 250 Ω On resistance at recording RAFW 200 300 Ω 1 MHz Settling time AAF analog SW DAC1 f characteristics fDAC1 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 15 AN8725FH ICs for Optical Disk Drive ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit Driving current temperature characteristics ErrDA1 Including DAC8 when setting at "FFh", DAC7 [0h], DAC8 [Fh], Ta = 0°C to +75°C 7 10 % Offset current variation to temperature dI1ON dT "00h", LPF-on, including DAC7, DAC8, DAC7 [0h], DAC8 [Fh], Ta = −25°C to +75°C 2 10 µA °C dI1OF dT "00h", LPF-off, including DAC7, DAC8, DAC7 [0h], DAC8 [Fh], Ta = −25°C to +75°C 0.5 10 f characteristics fDAC9 Sine wave signal equivalent to 40 mA[p-p] of current amplitude at LPF22 pin, DAC7 [Fh], DAC8 [0h], DAC1 [00h], RDCP1 pin = 1 000 pF 1 MHz Driving current temperature characteristics ErrDA9 Including DAC8 at setting at "1Fh", DAC7 [Fh], DAC8 [0h], Ta = 0°C ∼ +75°C 7 10 % Offset current variation to temperature dI9ON dT "00h", LPF-on, including DAC7, DAC8, DAC7 [Fh], DAC8 [0h], Ta = −25°C ∼ +75°C 2 10 µA °C dI9OF dT "00h", LPF-off, including DAC7, DAC8, DAC7 [Fh], DAC8 [0h], Ta = −25°C to +75°C 0.5 10 Driving current temperature characteristics ErrDA7 DAC7 [Fh], DAC8 [0h], DAC9 [1Fh], DAC1 [00h], Ta = −20°C to +75°C 0 8 15 % Offset current temperature characteristics dIDA7OF DAC7 [0h], DAC8 [0h], dT DAC9 [1Fh], DAC1 [00h], Ta = −20°C to +75°C 0.2 10 µA °C DAC1 (continued) DAC9 DAC7 DAC8 Driving current temperature characteristics ErrDA8 DAC8 [Fh], DAC7 [0h], DAC1 [FFh], DAC9 [00h], Ta = −20°C to +75°C 0 8 15 % Offset current temperature characteristics dIDA8OF DAC8 [0h], DAC7 [0h], dT DAC1 [FFh], DAC9 [00h], Ta = −20°C to +75°C 0.2 10 µA °C 16 ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit 10 µA °C DAC2 Offset current temperature characteristics dIDA2OF dT Driving current temperature characteristics ErrDA2 DAC3 = "FFh", set to DAC4 = "Fh", Ta = −20°C to +75°C 6 10 % Settling time tSDA2A XWR ↑ to DAC2 [∆4: 10 h to 14h], ±0.5 LSB DAC4 [Fh] 40 100 ns tSDA2B XWR ↑ to DAC2 [∆7F: 10 h to 8 Fh], ±1.0 LSB DAC4 [Fh] 80 200 10 µA °C DAC3 Offset current temperature characteristics dIDA3OF dT Driving current temperature characteristics ErrDA3 DAC3 = "FFh", set to DAC4 = "Fh", Ta = −20°C to +75°C 6 10 % Settling time tSDA3A XWR ↑ to DAC3 [∆4: 10 h to 14h], ±0.5 LSB DAC4 [Fh] 40 100 ns tSDA3B XWR ↑ to DAC3 [∆7F: 10 h to 8Fh], ±1.0 LSB DAC4 [Fh] 80 200 10 µA °C 6 10 % VPSDHYS Voltage difference between abnormality detection and release of supply voltage drop, VPSD1 −VPSDH 300 mV VPSOHYS Voltage difference between abnormality detection and release of supply voltage drop, VPSOH −VPSOL 300 VPDCOF Insufficiently emitted light detection −5 5 VPOCOF Excessively emitted light detection −5 5 DAC4 Offset current temperature characteristics dIDA4OF dT Driving current temperature characteristics ErrDA4 DAC4 = "Fh", set to DAC2 = "FFh", Ta = −20°C to +75°C Supply voltage monitoring block Abnormal supply voltage detection hysteresis Comparator in abnormally emitted light detection block Input offset voltage mV 17 AN8725FH ICs for Optical Disk Drive ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit dVPDCOF Insufficiently emitted light detection dT 20 µV °C dVPOCOF Excessively emitted light detection dT 20 Abnormally emitted light tPWDNF Insufficiently emitted light detection 150 300 detection response tPWOVF Excessively emitted light detection 150 300 Abnormally emitted light tPWDR Insufficiently emitted light detection 150 300 release response tPWOVF Excessively emitted light detection 150 300 dVDA5OF Set to "Fh" dT −10 80 µV °C dVDA5OF Set to "Fh" dT −10 80 µV °C dVEROFR In playback, dT IPD = 0 µA −20 210 µV °C dVEROFW In recording, dT IPD = 0 µA −20 200 dGERR1 In playback, IPD = 100 µA to 200 µA, Ta = −20°C to +75°C −3 0.5 3 dGERR2 In playback, IPD = 100 µA to 200 µA, Ta = −20°C to +75°C −3 0.5 3 dGERW In recording, IPD = 100 µA to 2 000 µA, Ta = −20°C to +75°C −3 0.5 3 −3 0.5 3 % ns Comparator in abnormally emitted light detection block (continued) Input offset voltage variation to temperature ns ns DAC5 block Offset voltage variation to temperature DAC6 block Offset voltage variation to temperature Optical monitor for abnormally emitted light detection Offset voltage variation to temperature Gain variation to temperature Gain ratio variation to temperature Settling time Signal changeover response (× 10 mode) 18 d GERR Ta = −20°C to +75°C GERW tERR In playback, error: ±0.5%, current variation 100 µA to 200 µA 250 400 tERW In playback, error: ±0.5%, current variation 100 µA to 2 000 µA 100 200 tERSW1A Playback → recording ±0.5% addr "9": D4 = "0" × 10 170 400 tERSW2A Recording → playback ±0.5% addr "9": D4 = "0" × 10 550 1 000 % ns ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit tERSW1B Playback → recording ±0.5%, addr "9": D4 = "1" × 5 200 400 ns tERSW2B Recording → playback ±0.5%, addr "9": D4 = "1" × 5 250 500 Optical monitor for abnormally emitted light detection (continued) Signal changeover response × 5 mode Control operation response Register setting → output Data writing to LPF-off t87 XWR ↑ to LPF "off" 0.8 2.0 µs Data writing to LPF-on t88 XWR ↑ to LPF "on" 250 600 ns Data writing to AAF-off t85 XWR ↑ to AAF "off" 60 200 ns Data writing to AAF-on t86 XWR ↑ to AAF "on" 20 200 ns Data writing to DAC6 changeover *3 t207 XWR ↑ to DAC6 ±0.5% 0.9 2.5 µs Data writing to DAC5 changeover *3 t208 XWR ↑ to DAC5 ±0.5% 0.9 2.5 µs Data writing to shunt on *4 t89 XWR ↑ to shunt circuit "on", LDERR register "1" 430 ns Data writing to shunt off *4 t90 XWR ↑ to shunt circuit "off", LDERR register "0" 230 ns Control operation response Input → output RPHOLD ↑ to PWRMONI changeover t37 RPHOLD ↑ to × 1, at having reached ±0.5% 0.4 0.9 µs RPHOLD ↓ to PWRMONI changeover t38 RPHOLD ↓ to × 10, AAF, at having reached ±0.5% 0.4 0.9 µs RPHOLD ↑ to mask signal *5 t45 RPHOLD ↑ to mask signal ↓ 15 30 ns Mask signal width at RPHOLD ↑ *5 t46 Mask signal ↓ to mask signal ↑ at RPHOLD high 1 1.1 µs RPHOLD ↓ to mask signal *5 t47 RPHOLD ↓ to mask signal ↓ 15 30 ns Mask signal width at RPHOLD ↑ *5 t48 Mask signal ↓ to mask signal ↑ at RPHOLD low 1 1.1 µs RPHOLD ↓ to AAFRST signal ↑ *5 t211 RPHOLD ↓ to AAFRST ↑ 15 30 ns AAFRST signal width *5 t212 AAFRST ↑ to AAFRST ↓ 2 2.2 µs Shunt circuit "on" *6 t49 XCLR ↓ to shunt circuit "on" 430 ns Shunt circuit "off" *6 t50 XCLR ↑ to shunt circuit "off" 230 ns Note) *3: Measure at DACMONI pin. *4: Measuring is impossible outside the IC. *5: Measuring is impossible outside the IC. The values of t46, t48 and t212 are determined by the built-in resistor Rin1 (10 kΩ, allowance: 10%) and the external C1. *6: Measuring is impossible outside the IC. The built-in resistor Rin2 (10 kΩ, allowance: 10%) and the external C2. 19 AN8725FH ICs for Optical Disk Drive ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • 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 Conditions Min Typ Max Unit Input → output (continued) t213 AAFRST ↑ to AAF "reset" 200 ns t214 AAFRST ↓ to AAF "normal" 200 ns t215 ERFIL ↑ to XLDERR1 ↓ 1.2 2.0 µs t216 ERFIL ↓ to XLDERR1 ↑ 15 ns Mode changeover t55 XWR ↑ to AAFRST test mode 25 60 ns AAFRST t56 XWR ↑ to AAFRST normal mode 200 400 Mode changeover t57 XWR ↑ to SW6 test mode 90 200 SW6 t58 XWR ↑ to SW6 normal mode 60 150 Mode changeover t59 XWR ↑ to XHFON test mode 20 60 XFHON t60 XWR ↑ to XHFON normal mode 25 70 Mode changeover t61 XWR ↑ to SW2 test mode 30 80 SW2 t62 XWR ↑ to SW2 normal mode 20 50 Mode changeover t63 XWR ↑ to SW3 test mode 30 70 SW3 t64 XWR ↑ to SW3 normal mode 20 50 Mode changeover t67 XWR ↑ to SW1 test mode 20 50 SW1 t68 XWR ↑ to SW1 normal mode 35 100 Mode changeover t69 XWR ↑ to LEVSW test mode 0.55 2.0 LEVSW t70 XWR ↑ to LEVSW normal mode 0.35 1.0 t75 XWR ↑ to AAF filter reset 25 100 t76 XWR ↑ to AAF filter normal 200 400 Test mode operation t77 XWR ↑ to × 1, when reaching ±0.5% 0.4 0.9 Current amplification changeover t78 XWR ↑ to × 10, when reaching AAF ±0.5% 0.4 0.9 Test mode operation t79 XWR ↑ to XHFON ↑ 20 60 XHFON t80 XWR ↑ to XHFON ↓ 25 70 Test mode operation t81 XWR ↑ to SW2 "on" DAC2 ±2.0 LSB 90 200 t81A XWR ↑ to SW2 "on" DAC2 × 50% 30 80 t82 XWR ↑ to SW2 "off" 0 mA ±2.0 LSB 50 150 t82A XWR ↑ to SW2 "on" DAC2 × 50% 20 60 AAF reset "reset" *6 AAF reset "normal" *6 Mask signal (wrt. ERFIL) *7 Register → output Test mode operation AAF filter SW2 *9 Note) *6: *7: *8: *9: 20 *8 ns ns ns ns ns µs ns µs Measuring is impossible outside the IC. The built-in resistor Rin2 (10 kΩ, allowance: 10%) and the external C2. Measuring is impossible outside the IC. No external fitting until on/off of switch. Set the data to "7Fh". ns ns ICs for Optical Disk Drive AN8725FH ■ Electrical Characteristics at VCC = 5.0 V, Ta = 25°C (continued) • Design reference data (continued) Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed. Parameter Symbol Conditions Min Typ Max Unit t83 XWR ↑ to SW3 "on" DAC3 ±2.0 LSB 330 600 ns t83A XWR ↑ to SW3 "on" DAC3 × 50% 30 80 t84 XWR ↑ to SW3 "off" 0 mA ±2.0 LSB 50 150 t84A XWR ↑ to SW3 "on" DAC3 × 50% 20 60 t91 XWR ↑ to SW1 "off" 20 100 t92 XWR ↑ to SW1 "on" 35 150 t93 XWR ↑ to DAC5 W, at having reached ±0.5 LSB 1.0 2.5 t94 XWR ↑ to DAC5 R, at having reached ±0.5 LSB 0.7 2.5 t95 XWR ↑ to DAC6 W, at having reached ±0.5 LSB 1.0 2.5 t96 XWR ↑ to DAC6 R, at having reached ±0.5 LSB 0.7 2.5 Register → output (continued) Test mode operation SW3 *9 Test mode operation SW1 *10 Test mode operation DAC5 Test mode operation DAC6 ns µs µs Note) *9 : Data sets up "7Fh". *10 : DAC1 = 7 Fh, DAC9 = 00 h, DAC7 = 0h, DAC8 = Fh ■ Terminal Equivalent Circuits Pin No. Symbol 1 2 3 Pin 1: SGND Pin 2: DGND Pin 3: DGND 4 5 6 Pin 4: PKMD Pin 5: BIMD Pin 6: RPHOLD Equivalent circuit DVCC 5 kΩ Pin 4, 5, 6, 11, 12, 13, 14, 27 100 kΩ DGND 7 8 Pin 7: XWR Pin 8: XRD DVCC 100 kΩ 5 kΩ Pin 7, 8, 26 DGND 21 AN8725FH ICs for Optical Disk Drive ■ Terminal Equivalent Circuits (continued) Pin No. 9 Symbol DVCC Equivalent circuit DVCC Pin 9, 34 DGND 10 DGND 11 12 13 Pin 11: AD0 Pin 12: AD1 Pin 13: AD2 14 Pin 14: AD3 15 16 17 18 Pin 15: DT0 Pin 16: DT1 Pin 17: DT2 Pin 18: DT3 Refer to pin 4 DVCC DGND DVCC Pin 15, 16, 17, 18, 22, 23, 24, 25 DGND 19 20 Pin 19: DGND Pin 20: SGND 21 Pin 21: SGND 22 23 24 Pin 22: DT4 Pin 23: DT5 Pin 24: DT6 25 Pin 25: DT7 26 XLDEN Refer to pin 7 27 XCLR Refer to pin 4 28 DGND 29 XLDERR Refer to pin 15 DVCC Pin 29, 32 DGND 22 ICs for Optical Disk Drive AN8725FH ■ Terminal Equivalent Circuits (continued) Pin No. 30 31 Symbol Equivalent circuit Pin 30: PWMSK Pin 31: ERFIL DVCC Schmitt-trigger Pin 30, 31 10 kΩ DGND 32 XHFON Refer to pin 29 33 DGND 34 DVCC Refer to pin 9 35 AGND 36 VC AVCC 36 50 Ω AGND 37 RREF AVCC 37 AGND 38 LPF11 AVCC Pin 38, 43 IGND 23 AN8725FH ICs for Optical Disk Drive ■ Terminal Equivalent Circuits (continued) Pin No. 39 Symbol Equivalent circuit LPF12 AVCC Pin 39, 44 IGND 40 41 Pim 40 : IGND Pim 41 : SGND 42 Pim 42 : SGND 43 LPF91 Refer to pin 38 44 LPF92 Refer to pin 39 45 AVCC AVCC Pin 45, 58 AGND 46 DETMONI CVCC AVCC 46 CGND 47 PWRMONI 50 49 48 AVCC 47 CGND 24 ICs for Optical Disk Drive AN8725FH ■ Terminal Equivalent Circuits (continued) Pin No. 48 Symbol AAF Equivalent circuit 50 49 AVCC 48 CGND 60 49 IVOUT 50 AVCC 49 CGND 50 IVIN AVCC 50 CGND 51 IPD CVCC AVCC 51 CGND 52 CGND 25 AN8725FH ICs for Optical Disk Drive ■ Terminal Equivalent Circuits (continued) Pin No. 53 Symbol Equivalent circuit CVCC 53 CVCC CGND 54 AGND 55 56 Pim 55 : ERREF Pim 56 : VNR AVCC Pin 55, 56 AGND 57 DACMONI AVCC 57 AGND 58 AVCC 59 60 61 Pim 59 : SGND Pim 60 : SGND Pim 61 : SGND 62 Pim 62 : RGND 63 64 Pim 63 : RDCP1 Pim 64 : RDCP2 Refer to pin 45 RVCC Pin 63, 64 RGND 26 ICs for Optical Disk Drive AN8725FH ■ Terminal Equivalent Circuits (continued) Pin No. 65 Symbol Equivalent circuit LDRP 68 RVCC AVCC 65 SGND 66 N.C. 67 N.C. 68 RVCC 68 RVCC RGND 69 LDPK Pin 70, 75 AVCC Pin 69, 74 SGND PBGND 70 XLDPK 70 75 SGND 69 74 27 AN8725FH ICs for Optical Disk Drive ■ Terminal Equivalent Circuits (continued) Pin No. Symbol 71 PKGND 72 PKVCC Equivalent circuit Pin 72 PKVCC 77 BIVCC SGND 73 PKDCP AVCC Pin 73, 78 SGND PBGND 74 LDBI Refer to pin 69 75 XLDBI Refer to pin 70 76 BIGND 77 BIVCC Refer to pin 72 78 BIDCP Refer to pin 73 79 SGND 80 SGND ■ Application Notes 1. PD Ta curves of QFP080-P-1212 2.000 1.920 1.800 Mounted on standard board (glass epoxy: 75 mm × 75 mm × t0.8 mm) Rth(j-a) = 65.1°C/W Power dissipation PD (W) 1.600 1.400 1.200 1.000 0.800 Independent IC without a heat shink Rth(j-a) = 125.0°C/W 0.600 0.400 0.200 0.000 0 25 50 75 100 125 Ambient temperature Ta (°C) 28 150 ICs for Optical Disk Drive AN8725FH ■ Application Notes (continued) 2. Timing chart 1) Definition of rising and falling tHL tLH 90% 90% 10% 10% 2) Interface In write In read t2 AD0 to AD3 t6 t9 Write address t3 Read address t7 t10 Write data DT0 to DT7 t13 t14 Read data t4 XWR t11 XRD Parameter Switching characteristics Pulse width Setup time Hold time Symbol Conditions Min Typ Max Unit ns tLH 10% to 90% 10 tHL 90% to 10% 10 t4 XWR ↓ to XWR ↑ 50 t11 XRD ↓ to XRD ↑ 70 t2 AD defined to XWR ↓ 10 t3 DT defined to XWR ↑ 35 t9 AD defined to XRD ↓ 10 t10 XRD ↓ to DT defined 50 t6 XWR ↑ to AD released 0 t7 XWR ↑ to DT released 0 t13 XRD ↑ to AD released 0 t14 XRD ↑ to DT released 0 30 ns ns ns 29 AN8725FH ICs for Optical Disk Drive ■ 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 AD0 to AD3 Data signal DT0 to DT7 Control signal XWR, XRD 3) Write can be done at the rise of XWR. However, selection of a write register can be done at the fall of XWR. DAC and register data are stored at D-FF. 4) Read appears on DT0 to DT7 at XRD = low. 5) Refer to "■ Application Notes, 2. Timing chart" for the timing chart. 6) Each signal line is pulled up and down as below: Pull-down to GND with 100 kΩ AD0 to AD3 DT0 to DT7 Pull-up to VCC with 100 kΩ XWR WRD 30 ICs for Optical Disk Drive AN8725FH ■ Application Notes (continued) 4. Signal flow DT0 to DT7 AD0 4 to AD3 XWR XRD 4 DAC7 4 DAC8 DAC1 "1" register 8 DAC1 DAC2 "2" register 8 DAC2 DAC3 "3" register 8 DAC3 DAC4 "4" register 4 DAC4 DAC56R "5" register 8 DAC56W "6" register 8 DAC78 "0" register WR0 RD0 WR1 RD1 WR2 RD2 WR3 RD3 WR4 RD4 WR5 RD5 WR6 RD6 WR7 RD7 WR8 RD8 WR9 RD9 WRA RDA WRB RDB WRC RDC WRE RDE WRF RDF DAC5 DAC6 CNTL1 "7" register CNTL2 "8" register CNTL3 "9" register ERRMSK "A" register ERRFAC "B" register DAC9 "C" register 5 DAC9 DUMY "E" register LDDENB "F" register 31 AN8725FH ICs for Optical Disk Drive ■ Application Notes (continued) 5. Register circuit configuration 1) DAC1, DAC2, DAC3, DAC4, DAC9 D-FF 8-bit DT0 to DT 7 8-bit White DAC* (0 to 7) D WR* Q DAC* (0 to 7) Analog output DAC* CK 3-state driver 8-bit 8-bit Read DAC* (0 to 7) DAC* (0 to 7) RD* 2) DAC7, DAC8 D-FF 8-bit DT0 to DT 7 White DAC78 (0 to 7) WR0 D Q 8-bit 4-bit DAC78 (0 to 7) DAC78 (4 to 7) CK 4-bit 3-state driver RD0 32 DAC7 4-bit DAC78 (0 to 3) 8-bit 8-bit Read DAC78 (0 to 7) DAC78 (0 to 7) DAC8 4-bit ICs for Optical Disk Drive AN8725FH ■ Application Notes (continued) 5. Register circuit configuration (continued) 3) DAC56R, DAC56W Selector D-FF 8-bit DT0 to DT7 White data (0 to 7) 8-bit D WR5 Q Data (0 to 7) A CK Data (0 to 3) 3-state driver 8-bit 8-bit Data (0 to 7) Read data (0 to 7) Insufficiently emitted light DAC5 4-bit RPHOLD = low output A RPHOLD = high output B RD5 Data (4 to 7) Excessively emitted light DAC6 4-bit D-FF 8-bit White data (0 to 7) WR6 8-bit D Q Data (0 to 7) B CK 3-state driver 8-bit 8-bit Read data (0 to 7) Data (0 to 7) RD6 RPHOLD 33 AN8725FH ICs for Optical Disk Drive ■ Application Notes (continued) 5. Register circuit configuration (continued) 4) CNTL1, CNTL2, CNTL3, ERRMSK, ERRFAC, DUMY, LDDENB D-FF 8-bit DT0 to DT7 White data (0 to 7) WR* 8-bit D Q Data (0 to 7) CK 3-state driver RD* 34 8-bit 8-bit Read data (0 to 7) Data (0 to 7) Each control circuit ICs for Optical Disk Drive AN8725FH 41 SGND 42 SGND C6 43 LPF91 R3 C7 44 LPF92 45 AVCC 46 DETMONI C8 48 AAF 49 IVOUT 50 IVIN 51 IPD 52 CGND R4 47 PWRMONI R5 C9 C10 53 CVCC 54 AGND 55 ERREF 56 VNR C11 58 AVCC 59 SGND 60 SGND 57 DACMONI PD ■ Application Circuit Example SGND 61 40 IGND RGND 62 39 LPF12 C5 RDCP1 63 38 RDCP2 64 37 RREFLPF11 R1 R6 C12 C13 LD R7 R9 36 VC LDRP 65 R8 N.C. VCC 34 DVCC C3 33 DGND 32 XHFON LDPK 69 R10 ERFIL (Rin2) XLDPK 70 31 PKGND 71 30 C2 PWMSK (Rin1) 29 C1 XLDERR C15 PKVCC 72 C16 tantalum PKDCP 73 28 DGND LDBI 74 27 XCLR SGND 20 DGND 19 DT3 18 DT2 17 DT1 16 DT0 15 AD3 14 AD2 13 9 DVCC AD1 12 8 XRD AD0 11 7 XWR DGND 10 6 C19 5 BIMD RPHOLD 4 21 SGND PKMD 22 DT4 SGND 80 3 23 DT5 SGND 79 DGND 24 DT6 BIDCP 78 C18 tantalum 2 25 DT7 BIVCC 77 C17 1 26 XLDEN BIGND 76 SGND XLDBI 75 DGND R11 C4 35 AGND 66 67 N.C. RVCC 68 C14 R2 35 AN8725FH ICs for Optical Disk Drive ■ Application Circuit Example (continued) • Resistance and capacitance 36 Symbol Resistor value Unit Symbol Resistor value Unit R1 10 kΩ C1 220 pF R2 C2 100 pF R3 C3 0.1 µF R4 C4 0.01 µF R5 1 kΩ C5 R6 10 kΩ C6 R7 82 Ω C7 0.1 µF R8 10 kΩ C8 R9 82 Ω C9 18 pF R10 3 Ω C10 0.1 µF R11 3 Ω C11 0.1 µF (Rin1) 10 kΩ C12 5 600 pF (Rin2) 10 kΩ C13 5 600 pF C14 0.1 µF C15 0.1 µF C16 1 µF C17 0.1 µF C18 1 µF C19 0.1 µF