HA12188AF. Pre-Amplifier and Servo IC for Quadruple-Speed CD-ROM ADE (Z) 1st. Edition October Description. Functions.

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1 HA288AF Pre-Amplifier and Servo IC for Quadruple-Speed CD-ROM ADE-27-83(Z) st. Edition October 995 Description The typical values of built-in capacitances in this IC are reduced % compared with those in IC HA288F. The values of Electrical Characteristics of this IC are same as those of IC HA288F. Functions RF amplifier Focus error amplifier Tracking error amplifier FOK detector Mirror detector Defect detector APC amplifier Focus, tracking, and sled servo control Inner/outer direction detector Features Built-in variable resistors for adjusting tracking error EF balance, tracking gain, and focus gain Single power supply Supports double and quadruple speeds Few external components FP-56 package

2 HA288AF Block Diagram V CC RS2 RS RFS Bias Mirror FOK Defect 28 LDS 27 CLK 43 RF APC RF FE VR Logic Input I/F Output I/F 26 DATA 25 XLT 24 DC 23 XRST 22 SENS 2 COUT 2 DEFECT or DRT Focus bias adj TR BAL TR2 54 FA TE DS2 VR TZC VR DS FS4 FLS FZC FS2 FPS Phase compen. FS FSA TM THS TLS Phase compen TM5 TM6 TPS TM3 TM4 TM7 TM2 9 SSA TSA SLM DRIV. TAC DRIV. 5 V CC FAC DRIV. The states of the IC s internal switches at XRST = L are shown at block diagram. The black dot symbol of transfer switch shows on state. The symbols mean connecting to V CC. The symbols mean connecting to pin 45. Rev., Oct. 995, page 2 of 35

3 HA288AF Pin Descriptions and Equivalent Circuits Pin No. Symbol Equivalent Circuit Function FH 47 k Focus error hold signal output 3 TH Tracking error hold signal output 2 TSI Tracking servo input 56 FSI Focus servo input 4 FLS 9 k Focus-servo low-frequency filter resistor & capacitor connection (FLS on) 5 FLS 3 k Focus-servo low-frequency filter capacitor connection (FLS off) 6 SGND Servo ground 7 FPS Resistor connection for programming focus-servo phase compensation (FPS off) 8 FPS Resistor connection for programming focus-servo phase compensation (FPS on) 9 FSA Focus servo output 2 k FS FS voltage output 2 k TLS 33 k Tracking servo low-frequency filter capacitor connection (TLS off) Rev., Oct. 995, page 3 of 35

4 HA288AF Pin Descriptions and Equivalent Circuits (cont) Pin No. Symbol Equivalent Circuit Function 2 TLS k Tracking servo low-frequency filter resistor & capacitor connection (TLS on) 3 TPS Resistor connection for programming tracking servo phase compensation (TPS off) 4 TPS Resistor connection for programming tracking servo phase compensation (TPS on) 5 SV CC Servo power supply 6 TSA Tracking servo output 22 k 7 TM2 Sled servo input 8 SSM SSA amplifier inverting input 9 SSA Sled servo output Rev., Oct. 995, page 4 of 35

5 HA288AF Pin Descriptions and Equivalent Circuits (cont) Pin No. Symbol Equivalent Circuit Function 2 DRT V CC Defect signal output or inner/outer k direction signal output 2 COUT COUT output 22 SENS SENS output 23 XRST Reset input 24 DC DC input 25 XLT XLT input 26 DATA Data input 27 CLK Clock input 28 LDS 5 k 5 k Laser switch input 29 DFIN 43 k Defect comparator input 3 DFO Defect envelope signal output 3 DFH Defect hold signal output Rev., Oct. 995, page 5 of 35

6 HA288AF Pin Descriptions and Equivalent Circuits (cont) Pin No. Symbol Equivalent Circuit Function 32 FOK V CC FOK comparator output 2 k 33 MIRH Mirror hold signal output k 34 RFA 4 k RF signal AC input 35 BYPS 8 k 2 k Capacitor connection for ripple filter 36 ISET Resistor connection for programming reference current 37 PGND Pre-amplifier ground 38 RFO RF signal output 8 k 4 k 39 RS RS switch Rev., Oct. 995, page 6 of 35

7 HA288AF Pin Descriptions and Equivalent Circuits (cont) Pin No. Symbol Equivalent Circuit Function 4 RS2 RS2 switch 4 RFM RFS amplifier inverting input 5 k 5 k 42 PV CC Pre-amplifier power supply 43 RF RF amplifier input k 44 RF2 RF2 amplifier input 45 V C Voltage reference output 2 k 46 MD APC amplifier input 47 LD APC amplifier output 5 k k 48 TR TR amplifier input 8 k 2 k 6 k 3.6 p 32 k 49 TR2 TR2 amplifier input Rev., Oct. 995, page 7 of 35

8 HA288AF Pin Descriptions and Equivalent Circuits (cont) Pin No. Symbol Equivalent Circuit Function 5 TEP TE amplifier non-inverting input 22.6 k 5 TEM TE amplifier inverting input 52 TEO TE amplifier output 53 TZC 54 FAM 75 k 5.5 k TZC comparator input FA amplifier inverting input 55 FAO FA amplifier output Rev., Oct. 995, page 8 of 35

9 HA288AF Operation. Microprocessor Control The IC s internal switches can be operated by sending control data from a microprocessor. The signal timing is shown in figure, and the control commands are listed in table. DATA CLK T T2 XLT T3 T4 Item Symbol Min Typ Max Unit Clock frequency f CLK 52 khz Clock pulse width T, T2.96 µs Delay time T3 µs Latch pulse width T4 2 µs Figure Timing Diagram for Microprocessor Control Signals from the microprocessor are input at pins 23 to 27. A low input at the XRST pin resets the IC. Normally this pin should be kept high. (See figure 2.) 27 CLK 26 DATA Logic Input I/F Output I/F 25 XLT 24 DC 23 XRST 22 SENS 2 COUT 2 DEFECT or DRT Figure 2 Microprocessor Interface Rev., Oct. 995, page 9 of 35

10 HA288AF Table Microprocessor Control Commands Focus mode Tracking mode and FS DRT setting * DATA D7D6D5D4 D3 D2 D D SENS *2 FS4 DEFECT FS2 FS FZC OFF DRT *3 *4 FS current : Defect TM7 *5 THS H : Direction Access control mode See table 2 TZC TM3, TM4 current *6 TM5, TM6 current *6 Pulse setting mode D3 D2 Current value 32µA 6µA 24µA 8µA D D Current value 32µA 6µA 24µA 8µA H Speed setting mode D3 D2 Mirror *7 Mode Normal Double Quadruple Focus tracking FLS FPS TLS TPS RF RS RS2 H EF balance adjustment BAL2 BAL BAL H Tracking gain and focus gain adjustment ; Focus gain ; Tracking gain GF2 GF H GT2 GT H Notes: The switch name surrounded by circle means that the switch turns on when the corresponding bit is. The switch name with bar surrounded by circle means that the switch turns on when the corresponding bit is. DEFECT OFF means that switches DS and DS2 don t turn on when the corresponding bit is. Though the DEFECT OFF bit is set, the output at pin 2 is defect signal (in defect signal output mode). DRT (pin 2) outputs defect signal when the corresponding bit is, and outputs direction signal when the corresponding bit is. TM7 can turn on only when COUT is high. The value of two current sources over switch FS are 8 µa(source) 36 µa(sink) when the corresponding bit is, and are 9 µa(source) 8 µa(sink) when the corresponding bit is. The current values through switches TM3, TM4, TM5 and TM6 can be selected in four steps. The speed of Mirror circuit can be selected in three steps. Don t use D3 =, D2 = mode. Rev., Oct. 995, page of 35

11 HA288AF Table 2 Access Control Mode DATA ST ST2 ST3 D3 D2 D D TM6 TM5 TM4 TM3 TM2 TM TM6 TM5 TM4 TM3 TM2 TM TM6 TM5 TM4 TM3 TM2 TM $2 $2 $22 $23 $24 $25 $26 $27 $28 $29 $2A $2B $2C $2D $2E $2F A circle means that the switch is ON. Note: After the microprocessor sends serial data, TM to TM6 can be switched among the states listed under ST to ST3 by input at the DC pin. First, if the microprocessor sends serial data when DC is high, TM to TM6 are placed in the state listed under ST. When DC is brought low, the states change to the states listed under ST2. Then if DC is brought high again, the states change to the states listed under ST3. Rev., Oct. 995, page of 35

12 HA288AF Table 2-A Access Control Mode Appendix ) Tracking servo DATA Tracking servo movement D3 D2 at DC = H (ST) Servo loop off Servo loop on Servo loop off jump to outside track Servo loop off jump to inside track 2) Sled servo DATA Sled servo movement D D at DC = H (ST) Servo loop off Servo loop on Servo loop off move to outside track Servo loop off move to inside track Rev., Oct. 995, page 2 of 35

13 HA288AF 2. RF and Focus Error Pre-Amplifiers The main beam output signals from the photodiode IC are led in through resistors at pins 43 and 44. The outputs of amplifiers RF and RF2 are summed by amplifier RFS to generate the EFM RF signal. (*) External resintances of pins 43 and 44 and amplifier RFS should be set according to the pick-up so that the RF signal at pin 38 is about.5 V OP (the difference between the peak level of T signal component and the voltage at no signal). Switches RS and RS2 operate together under microprocessor control. For example they are on for normal or double speed, and off for quadruple speed. ON resistance of RS is.kω typ and on resistance of RS2 is 53Ω typ. Figure 3-A shows the frequency characteristic at pin 38 in the condition of figure 3.(Input resistances of pins 43 and 44 are kω.) External resistances and capacitances should be fitted according to the pick-up. Stray capacitances of board print patterns have influence on this frequency characteristic. Therefore external resistances and capacitances should be set considering stray capacitances. Amplifier FE subtracts the output of amplifier RF2 from the output of amplifier RF to generate the focus error signal. The gain is db. The focus error signal is output as the output of amplifier FA at pin 55, with a gain set by variable resistor VR and the external resistance values. With the external resistors in figure 3, the gain of amplifier FA is 8.7dB (initial value after reset). Variable resistor VR is controlled by 3-bit data. The gain can be varied from 5dB to 7dB with respect to the reset value. The focus error signal is binarized by comparator FZC, with a Vth equal to V C.38V. A reference voltage of /2 V CC is output at pin 45. The IC s internal reference voltage is connected internally. The feedback resistance of amplifier FA should be set according to the pick-up so that the focus S-curve at pin 55 is about 3V peak-to-peak. Note: The sink current of amplifier RFS is about ma. When load capacitance of pin 38 is big because of wiring with CD DSP LSI etc, please use buffer amplifier. (for example emitter follower transistor) Rev., Oct. 995, page 3 of 35

14 HA288AF.8 k 8.2 k 22 p.5 k 24 p 2 p V CC RS2 RS RFS µ 5 k RF2 54 FA V C 5 k RF 5 k k k 6 k 6 k 8. p FE 8. p 6 k 6 k VR FZC 5.5 k Unit R : Ω C : F Figure 3 RF and Focus Error Pre-Amplifiers Gain (db) 2 RS,2 ON OFF Gain Phase 2 3 k k M 2M 4M M Frequency (Hz) Phase (deg) Figure 3-A Frequency characteristic example of RF preamplifiers Rev., Oct. 995, page 4 of 35

15 HA288AF 5.2 k 2.5 k 27.6 k 9.7 k GF2 GF GF Figure 4 Focus VR Unit R : Ω Table 3 Focus VR and Gain D2 D D VR Gain 9.7k 4.8dB 7.2k 2.2dB 5.5k ±db 4.6k.6dB 3.4k 3.8dB 3k 4.9dB 2.7k 6.dB 2.4k 6.8dB Rev., Oct. 995, page 5 of 35

16 HA288AF 3. Tracking Pre-Amplifiers The sub-beam outputs from the photodiode IC are led in through resistors at pins 48 and 49. External resistances of pins 48 and 49 and amplifier TE should be set according to the pick-up so that the traverse signal at pin 52 is about 2 V PP. After a reset, the initial value of the feedback resistance BAL from amplifier TR to pin 48 is 4kΩ, the same as the feedback resistance from amplifier TR2 to pin 49. BAL has a variable resistance value that is controlled by 4-bit data. The variable range is from 32% to 28% of the reset value. This resistance can be varied to adjust the EF balance of the tracking error. Amplifier TE generates the tracking error signal. Its input signals are received from the preceding stage through variable resistors VR. With the external resistor values in figure 5, after a reset, the initial value of the gain is 8.8dB. The variable VR resistance is controlled by 3-bit data. The gain can be varied from 5dB to 7dB with respect to the reset value. The tracking error signal is coupled through a capacitor to input pin 53 and binarized by comparator TZC, with a Vth equal to V C. (*) Note: At normal speed the output of amplifier TE contains much EFM signal components. Therefore the output of amplifier TE had better be led in through LPF for reduction of EFM signal components at pin TR2 BAL TR 3.6 p 4 k VR 62 k k µ p TE 75 k VR TZC Unit R : Ω C : F Figure 5 Tracking Pre-Amplifiers Rev., Oct. 995, page 6 of 35

17 HA288AF 8 k 32 k 2 k 4 k 8 k 6 k 6 k Unit R : Ω BAL3 BAL2 BAL BAL Figure 6 BAL 2.7 k 5.7 k 4 k 4 k GT2 GT GT Unit R : Ω Figure 7 Tracking VR Table 4 Tracking VR Values and Gain D2 D D VR Gain 4k 4.9dB 29.6k 2.3dB 22.6k ±db 8.8k.6dB 4.k 3.9dB 2.5k 4.9dB.k 6.dB.k 6.9dB Rev., Oct. 995, page 7 of 35

18 HA288AF Table 5 BAL Values D3 D2 D D BAL Ratio 272k 32% 288k 28% 34k 24% 32k 2% 336k 6% 352k 2% 368k 8% 384k 4% 4k ±% 46k 4% 432k 8% 448k 2% 464k 6% 48k 2% 496k 24% 52k 28% 4. FOK Detector This detector is a comparator that generates the FOK signal. FOK is one of the signals that determines when to activate the focus servo. When the voltage at pin 38 exceeds the voltage at pin 34 by approximately.4v, pin 32 goes high..33 µ.5 µ.5 µ Mirror FOK Defect Unit C : F Figure 8 Mirror, FOK, and Defect Detectors Rev., Oct. 995, page 8 of 35

19 HA288AF 5. Defect Detector When a scratched disc is played, the EFM RF signal has the shape shown in figure 9 (a). The defect detector detects the drop-out area of this signal. Scratches with dimensions of about µm or greater are detected. (a) Pin 38 ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;; (b) Pin 2 Figure 9 Defect Detector Waveforms 6. Mirror Detector As the pick-up travels across tracks, the EFM RF signal varies as in figure (a). At pin 34, the signal varies as in figure (b). The mirror detector detects the mirror areas. The external capacitor on pin 33 integrates the track-crossing frequency component. The internal time constant of the mirror detector can be set for normal, double, or quadruple speed by microprocessor commands, to raise the trackable range of track-crossing frequencies. (a) Pin 38 ;; ;;; ;;;; ;;; ;; ;;; ;;;;; ;;; ;;;;;;;;; ;;;;;;;;;;;;;; ;;;;; ;;;;; ;;;;; ;;; ;;; ;;; ;; ;;; (b) Pin 34 ;;; ;;; ;; ;;;;; ;;;;; ; ;;;;;;;;;;;;;;;;; ; ;;;;;;;;;;;;;;;;;;;;; ;;;;;;; ;;;;;;; ;;;; ;;;;;; ;;;;; ;; ;;;; ; ;;; ;; ;;;; (c) Mirror signal (internal signal) Figure Mirror Detector Waveforms Rev., Oct. 995, page 9 of 35

20 HA288AF 7. Bias The 2-kΩ external resistor on pin 36 sets the reference value of the IC s internal bias current. Use only this resistance value. The IC will not operate correctly with other resistance values. Pin 35 is for a bypass capacitor to eliminate noise from the IC s internal bias circuits. 2 k. µ 36 Bias 35 Unit R : Ω C : F Figure Bias 8. APC This circuit is for the Psub laser diode. The APC circuit is switched off when pin 28 is high. APC 46 k LDS Unit R : Ω Figure 2 APC 9. Focus Servo System The focus error signal is led in through a gain-control resistor to pin 56. Focus bias is adjusted at pin 56. When a defect is detected, switch DS2 propagates the focus error signal, which is integrated by an internal resistor and external capacitor. Switch DS2 also inverts the phase of the propagated signal. Switch FS4 is the focus servo loop switch. Switch FLS switches low frequency filter, thereby switching the AC gain of the servo. Switch FPS switches the peak phase-compensation frequency. This switch is linked with switch FLS and tracking servo switches TLS and TPS. For example this switch is off at normal, double speed and is on at quadruple speed. The DC gain from input at pin 56 to output at pin 9 is 9dB. Figure 4 shows the frequency characteristic when pin 4, 5 are open. Rev., Oct. 995, page 2 of 35

21 HA288AF Switch FS switches a current source to generate the focus search voltage. When switch FS2 is switched on, focus is acquired by switching switch FS on and off. The current through switch FS can be switched in two stages: 36µA sink/8µa source, and 8µA sink/9µa source k FS4 2 k 8µ/ 9µ 36µ/ 8µ Focus bias adj. FS2 9 k 5 k FS FLS 7 k DS2 Phase compen. FSA 47 k FPS 3 k 2 k µ 9 k µ.47 µ.47 µ 33 k 33 k FAC DRIV. Figure 3 Focus Servo Unit R : Ω C : F Gain 8 Gain (db) 3 2 Phase (deg) Phase 8 Note: 8 k 2k 4k k k Frequency (Hz) Peak frequency of phase compensation is inversely proportional to external resistance value (33kΩ at this figure) of pin 7, 8.(dot line : $4 mode, solid line : $42 mode) Figure 4 Focus Servo Frequency Characteristic (pin 4, 5 are open) Rev., Oct. 995, page 2 of 35

22 HA288AF The transform function of phase compen block at figure 3 is as follows. VOUT 8.95 jω VIN jω (2.7 6 ) jω ( ( I 5.6 I ) ) ø tan - ω ( I )tan - ω ( 5.6 tan I ) - ω (2.7 6 ) at FPS OFF I = I 7 at FPS ON I = 2.7 I 8 V CC.7V I 7 or I 8 External resistance value of pin 7 or 8. Tracking Servo System The tracking error signal is led in through a gain-control resistor to pin 2. When a defect is detected, switch DS propagates the tracking error signal, which is integrated by an internal resistor and external capacitor. Switch DS also inverts the phase of the propagated signal. Switch TM is the tracking servo loop switch. Switch TLS switches low frequency filter, thereby switching the AC gain of the servo. The purpose of switch THS is to raise the high-frequency gain. Switch TPS switches the peak phase-compensation frequency. This switch is linked with switch TLS and focus servo switches FLS and FPS. For example this switch is off at normal, double speed and is on at quadruple speed. Switch TM7 is turned on by taking the logical AND of COUT and microprocessor data, to improve the performance of the pick-up. COUT is a signal generated by latching Mirror with both edges of TZC. THS 8 p k Phase compen. TM3 TM4 TM7 TSA DS 67 k TM k k 8 p TLS TPS 22 k 6 TAC DRIV. 47 k 33 k µ k. µ. µ 33 k 33 k Figure 5 Tracking Servo 5 V CC Unit R : Ω C : F Rev., Oct. 995, page 22 of 35

23 HA288AF Gain (db) 3 2 Gain Phase (deg) Phase 8 Note: k 2k 4k k 8 k Frequency (Hz) Peak frequency of phase compensation is inversely proportional to external resistance value (33kΩ at this figure) of pin 3, 4. (dot line : $4 mode, solid line : $42 mode) Figure 6 Tracking Servo Frequency Characteristic (pin, 2 are open) The transform function of phase compen block at figure 5 is as follows. VOUT VIN 4.47 jω ( ( I ) ) 5.6 jω I ( )tan - ω 5.6 ø tan - ω I ( ) at TPS OFF I = I 3 at TPS ON I = 2.7 I 4 V CC.7V I 3 or I 4 External resistance value of pin 3 or 4 I Rev., Oct. 995, page 23 of 35

24 HA288AF Figure 7 shows the phase relationships of Mirror, the tracking error, TZC, and COUT. TM7 operates to prevent the moving direction component of the tracking error signal from reaching the actuator. The purpose of switches TM3 and TM4 is to generate the track jump voltage. A positive voltage appears at pin 6 when TM3 is switched on. A negative voltage appears at pin 6 when TM4 is switched on. The current values through switches TM3 and TM4 can be selected in four steps: 8µA, 6µA, 24µA, and 32µA. The DC gain from input at pin 2 to output at pin 6 is 3dB. Figure 6 shows the frequency characteristic when pin, 2 are open. ;;; ;; ;;;; ;;;;; ;;; ;;;;; ;;;;;; ;;;; ;;;; ;;;;;; ;;;;;;;; ;;;;;;;; ;;;;;;;;;; ;;; ;;;;; ;;;;;; ;;;; ;;;;; ;;;;; ;;;; ;;;;; ;;;;;; ;;;;;;; ;;;;;;;;;;; ;;;; Mirror Tracking error TZC COUT (a) Moving inward (b) Moving outward Figure 7 Phase Relationships of Mirror and Other Signals. DRT DRT is an output signal that indicates the inward or outward direction. In the example in figure 8, DRT is low during motion from outer toward inner tracks, and high for motion in the reverse direction. This signal is output from pin 2 on command from the microprocessor. RF ;;;;;;;;;;;;;;;;;;;;;;;; ;;;; ;;;; ;;;;;;;;; ;;;;;;; ;;;;;;; ;;;;;;;;; ; ; ;;;;;;;;;;;;;;;;; ;;;; (moving outward) (moving inward) DRT H L Figure 8 DRT Rev., Oct. 995, page 24 of 35

25 HA288AF 2. Sled Servo The signal output at pin 6 is passed through a low-pass filter and input at pin 7. TM2 is the loop switch of the sled servo. TM5 and TM6 are current switches that generate voltages for large movements of the sled. A positive voltage appears at pin 9 when TM5 is switched on. A negative voltage appears at pin 9 when TM6 is switched on. The current values through switches TM5 and TM6 can be selected in four steps: 8µA, 6µA, 24µA, and 32µA. SLM DRIV. TM5 TM6 9 SSA 56 k k 7 TM2 22 µ TM2 on resistsnce 23 Ω typ.22 µ 2 k 82 k Figure 9 Sled Servo Unit R : Ω C : F 3. Direct Control The switches in the tracking control and sled servo control blocks can be switched on and off by microprocessor commands. TM to TM6 can also be controlled directly by the DC pin after input of serial data from the microprocessor. When the microprocessor sends a command from $2 to $2F as serial data with DC high, TM to TM6 are placed in the states indicated under ST in table 2. Next, when DC is driven low, the states change to ST2. When DC is brought high again, the states change to ST3. Example of using the DC terminal for track jump is as follows. For inside track jump, after sending the $2C at DC = H, when the TZC s rising edge is detected set DC = L and set DC = H after a setting time. For outside track jump, after sending the $28 at DC = H, when the TZC s falling edge is detected, set DC = L and set DC = H after a setting time. Rev., Oct. 995, page 25 of 35

26 HA288AF Test Circuit Diagram S34A V CC S43 k S44 k µ 56 V CC 2 k 2SB 56c S48 S49 39 k 39 k 39 k 62 k 62 k S52 S53 5 k 39 k S55 S56 V CC FA RF2 44 APC 4 TE RF TR 48 TR2 BAL µ S2 DS2 VR TZC RS2 VR DS k FS4 S38 RS RFS FE FLS VR FZC 2 k 2 k Phase compen. 4.7 k FS2 FPS 33 k Bias FS FSA S34 34 TM 33. µ 34 S32.33 µ 32 Mirror FOK THS TLS k Logic Phase compen k 33 k.5 µ.5 µ 3 Defect 29 TM5 TM6 TPS Input I/F Output I/F TM2 TM3 TM4 TM S SSA TSA S22 S2 S9 k k k 4 k7 5 k 6 k2 V CC 5 k 6 S7 S6 4 k7 V CC V CC S9 V CC 4 k7 S6 S6. µ 6 V6 Unit R : Ω C : F Rev., Oct. 995, page 26 of 35

27 HA288AF Absolute Maximum Ratings Item Symbol Value Unit Power supply voltage V CC 7 V Power dissipation P T 55 mw Operating temperature Topr 2 to 75 C Storage temperature Tstg 55 to 25 C Note: Recommended operating power supply voltage range: 5 ±.5V. Rev., Oct. 995, page 27 of 35

28 HA288AF Electrical Characteristics (Ta = 25 C, V CC = 5V) Item Symbol Min Typ Max Unit Test Conditions Pins.Current dissipation I CC ma No signal 5, 42 2.Reference voltage V C V I45 = ±5mA 45 RF amp. 3.Offset voltage V RF mv 38 4.Max. output level H V RFH 4.2 V S38,S43,S44,S6 V6 = 4.V 5.Max. output level L V RFL 2. V S38,S43,S44,S6 V6 =.V 6.Voltage gain G VRF db S43, S44, S6 V38/ Focus error amp. 7.Offset voltage V FA mv 55 8.Max. output level H V FAH V S44, S55, S6 V6 = 4.V 9.Max. output level L V FAL.5. V S43, S55, S6 V6 = 4.V.Voltage gain G VFAI db S43, S6 V55/ 6.Voltage gain 2 G VFA db S44, S6 V55/ Tracking error amp. 2.Offset voltage V TE 5 5 mv 52 3.Max. output level H V TEH V S49, S52, S6 V6 = 4.V 4.Max. output level L V TEL.5. V S48, S52, S6 V6 = 4.V 5.Voltage gain G VTE db S49, S6 V52/ 6 6.Voltage gain 2 G VTE db S48, S6 V52/ 6 FOK 7.FOK Vth V FOK V S34, S6 when V32 4V Min (V38 V34) H output voltage V FKH 4.7 V S34, S L output voltage V FKL.4 V S32, S34, S6 32 Defect 2.Max operation frequency F DH 2 khz S43, S44, S6 2 2.Min operation frequency F DL khz S43, S44, S H output voltage V DFH 4.7 V L output voltage V DFL.4 V S2 2 Note: All offset voltages are values referring to V C (pin 45)at XRST = L. Rev., Oct. 995, page 28 of 35

29 HA288AF Electrical Characteristics (Ta = 25 C, V CC = 5V) (cont) Item Symbol Min Typ Max Unit Test Conditions Pins Defect 24.Operation min input level V DF.75 VPP S43, S44, S operation max input level V DF2 2.5 VPP S43, S44, S6 2 COUT 26.Max operation frequency F CO khz S34A, S53, S6 * Mirror Qudruple mode 2 CLK, DATA, XLT, DC, XRST 27. H output voltage V COH 4.7 V L output voltage V COL.4 V S H input level V MH 4. V 23 to L input level V ML. V 23 to 27 APC 3.APC voltage V APC V TZC Vth V TZC 4 4 mv S53, S6 Refer to V53 33.FZC Vth V FZC V S43, S6 55 Focus servo amp. Tracking servo amp. 34.Offset voltage V FO mv 9 35.Max output level H V FOH V S9, S56, S6 FS4 on, V6 =.V 36.Max output level L V FOL.8. V S9, S56, S6 FS4 on, V6 = 4.V 37.Voltage gain G VFO db S56, S6 V9/ 6 FS4, FLS, FPS on 38.Search voltage V S V FS2 on V9 V FO V C 9 39.Search voltage 2 V S V FS2, FS on V9 V FO V C 9 4.Offset voltage V TO 2 2 mv 6 4.Max output level H V TOH V S2, S6, S6 TM on, V6 =.V 42.Max output level L V TOL.8. V S2, S6, S6 TM on, V6 = 4.V Note: 9deg phase differnce between 34 and Rev., Oct. 995, page 29 of 35

30 HA288AF Electrical Characteristics (Ta = 25 C, V CC = 5V) (cont) Item Symbol Min Typ Max Unit Test Conditions Pins Tracking servo amp. Sled servo amp. 43.Voltage gain G VTO db S2, S6 TLS, TPS, TM on V6/ 6 44.TM3 voltage V TM V TM3 on V6 V TO V C 6 45.TM4 voltage V TM V TM4 on V6 V TO V C 6 46.Offset voltage V SO mv 9 47.Max output level H V SOH V S7, S9, S6 TM2 on V6 = 4.V 48.Max output level L V SOL.8. V S7, S9, S6 TM2 on, V6 =.V 49.Voltage gain G VS db S7, S6 TM2 on, V9/ 6 5.TM5 voltage V TM V 6µA mode TM5 on V9 V SO V C 5.TM6 voltage V TM V 6µA mode TM6 on V9 V SO V C SENS 52. H output voltage V SEH 4.7 V L output voltage V SEL.4 V S22 22 LDS 54. H input voltage V LDH 3.5 V L input voltage V LDL.5 V 28 Focus VR 56.VR gain G FVR db S43, S6 V55 / 6 G VFA 55 Tracking VR 57.VR gain 2 G FVR db S43, S6 V55 / 6 G VFA VR gain 3 G FVR db S43, S6 V55 / 6 G VFA VR gain 4 G FVR db S43, S6 V55 / 6 G VFA 55 6.VR gain G TVR db S48, S6 V52 / 6 G VTE VR gain 2 G TVR db S48, S6 V52 / 6 G VTE VR gain 3 G TVR db S48, S6 V52 / 6 G VTE VR gain 4 G TVR db S48, S6 V52 / 6 G VTE Rev., Oct. 995, page 3 of 35

31 HA288AF Electrical Characteristics (Ta = 25 C, V CC = 5V) (cont) Item Symbol Min Typ Max Unit Test Conditions Pins BAL 64.BAL gain G BA db S48, S6 V52/ 6 G VTE BAL gain 2 G BA db S48, S6 V52/ 6 G VTE BAL gain 3 G BA db S48, S6 V52/ 6 G VTE BAL gain 4 G BA db S48, S6 V52/ 6 G VTE BAL gain 5 G BA db S48, S6 V52/ 6 G VTE2 52 Mirror 69.Operation min input level V MI.25 V PP S34A, S53, S6 Quadraple mode 2 7.Operation max input level V MI2 2.5 V PP S34A, S53, S6 Quadraple mode 2 Test Method Notes Item No. Notes I5 (I5 means current at pin 5. Following expressions are same as this expression.) I42 2 V45 (V45 means voltage at pin 45. Following expressions are same as this expression. These symbols mean DC voltage at DC measuring and AC voltage at AC measuring.) 3 V38 V C 4, 5 V38 6 2log (V38 / 6) 6 = 5kHz,.2 V PP 7 V55 V C 8, 9 V55, 2log (V55 / 6) 6 = 4kHz,.5 V PP 2 V52 V C 3, 4 V52 5, 6 2log (V52 / 6) 6 = 4kHz,.5 V PP 7 (V38 V34) at the point that V32 exceeds 4V when V6 is lowered from 2.5V. 8, 9 V32 2 The maximum frequency for VIN6 such that the pin 2 signal is still a square wave. 6 =.25 V PP V C 95mV DC 2 The minimum frequency for VIN6 such that the pin 2 signal is still a square wave. 6 =.25 V PP V C 95mV DC 22, 23 V2 Rev., Oct. 995, page 3 of 35

32 HA288AF Test Method Notes (cont) Item No. Notes 24 The minimum voltage for V38 such that the pin 2 signal is still a square wave. 6 = khz V C 95mV DC 25 The maximum voltage for V38 such that the pin 2 signal is still a square wave. 6 = khz V C 95 mv DC 26 6, 34 9deg phase difference input signal 6 = 34 = V PP The maximum frequency for 6 ( 34) such that the pin 2 signal is still a square wave. 27, 28 V2 29 H input voltage of pin 23 to 27 3 L input voltage of pin 23 to 27 3 V46 32 (V6 V53) such that V22 exceeds 4V when V6 is upped from 2.4V. (SENS = TZC mode) 33 (V55 V C ) such that V22 exceeds 4V when V6 is upped from 2.5V. (SENS = FZC mode) 34 V9 V C 35, 36 V9 37 2log (V9 / 6) 6 = khz,.5 V PP 38, 39 V9 VFO V C 4 V6 V C 4, 42 V6 43 2log (V6 / 6) 6 = khz,.3 V PP 44, 45 V9 VTO V C 46 V9 V C 47, 48 V9 49 2log (V9 / 6) 6 = 4kHz,.5 V PP 5, 5 V9 VSO V C 52, 53 V22 54 Input voltage of pin 28 such that APC is off. 55 Input voltage of pin 28 such that APC is on. 56 GF2 =, GF =, GF = 2log (V55 / 6) G VFA 6 = 4kHz,.5 V PP 57 GF2 =, GF =, GF = 2log (V55 / 6) G VFA 6 = 4kHz,.5 V PP 58 GF2 =, GF =, GF = 2log (V55 / 6) G VFA 6 = 4kHz,.5 V PP 59 GF2 =, GF =, GF = 2log (V55 / 6) G VFA 6 = 4kHz,.5 V PP 6 GT2 =, GT =, GT = 2log (V52 / 6) G VTE2 6 = 4kHz,.5 V PP 6 GT2 =, GT =, GT = 2log (V52 / 6) G VTE2 6 = 4kHz,.5 V PP 62 GT2 =, GT =, GT = 2log (V52 / 6) G VTE2 6 = 4kHz,.5 V PP 63 GT2 =, GT =, GT = 2log (V52 / 6) G VTE2 6 = 4kHz,.5 V PP Rev., Oct. 995, page 32 of 35

33 HA288AF Test Method Notes (cont) Item No. Notes 64 BAL3 =, BAL2 =, BAL =, BAL = 2log (V52 / 6) G VTE2 6 = 4kHz,.5V PP 65 BAL3 =, BAL2 =, BAL =, BAL = 2log (V52 / 6) G VTE2 6 = 4kHz,.5V PP 66 BAL3 =, BAL2 =, BAL =, BAL = 2log (V52 / 6) G VTE2 6 = 4kHz,.5V PP 67 BAL3 =, BAL2 =, BAL =, BAL = 2log (V52 / 6) G VTE2 6 = 4kHz,.5V PP 68 BAL3 =, BAL2 =, BAL =, BAL = 2log (V52 / 6) G VTE2 6 = 4kHz,.5V PP 69 The minimum input voltage for VIN34 such that the pin 2 signal is still a square wave. 6 = MHz, V PP 34 = khz 7 The maximum input voltage for VIN34 such that the pin 2 signal is still a square wave. 6 = MHz, V PP 34 = khz Rev., Oct. 995, page 33 of 35

34 HA288AF Package Dimensions Unit: mm 2.8 ± ± ±.8.3 ± Max.3 M ±.5.5 ±.4 Hitachi Code JEDEC Code EIAJ Code Weight.4.6 ±.5 8 FP-56 ED-744A Mod..5 g Rev., Oct. 995, page 34 of 35

35 HA288AF Disclaimer. Hitachi neither warrants nor grants licenses of any rights of Hitachi s or any third party s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi s sales office for any questions regarding this document or Hitachi semiconductor products. Sales Offices Hitachi, Ltd. Semiconductor & Integrated Circuits. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo -4, Japan Tel: Tokyo (3) Fax: (3) URL NorthAmerica : Europe : Asia : Japan : For further information write to: Hitachi Semiconductor Hitachi Europe GmbH (America) Inc. Electronic Components Group 79 East Tasman Drive, Dornacher Straße 3 San Jose,CA 9534 D Feldkirchen, Munich Tel: <> (48) Germany Fax: <>(48) Tel: <49> (89) Fax: <49> (89) Hitachi Europe Ltd. Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (628) 585 Fax: <44> (628) 5856 Hitachi Asia Ltd. Hitachi Tower 6 Collyer Quay #2-, Singapore 4938 Tel : <65> / Fax : <65> / URL : Hitachi Asia Ltd. (Taipei Branch Office) 4/F, No. 67, Tun Hwa North Road, Hung-Kuo Building, Taipei (5), Taiwan Tel : <886>-(2) Fax : <886>-(2) Telex : HAS-TP URL : Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 7/F., North Tower, World Finance Centre, Harbour City, Canton Road Tsim Sha Tsui, Kowloon, Hong Kong Tel : <852>-(2) Fax : <852>-(2) URL : Copyright Hitachi, Ltd., 2. All rights reserved. Printed in Japan. Colophon 2. Rev., Oct. 995, page 35 of 35