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Ordering number:ENN7097
Monolithic Linear IC
LA9242M
Analog Signal Processor (ASP) for CD Players
Overview
The LA9242M is an analog signal processing and servo control bipolar IC designed for use in compact disc players ; a compact disc player can be configured by combining this IC with a CD-DSP such as the LC78922E and LC78620E, with a small number of additional components required. In addition, this IC allows CD-RW disk playback due to the on-chip gain switching function.
Package Dimensions
unit:mm 3159A-QFP64E
[LA9242M]
48 49 33 32 17.2 14.0
14.0
Functions
I/V amplifier, RF amplifier (with AGC), SLC, APC, FE, TE (with VCA and auto-balance function), focus servo amplifier (with offset cancellation function), spindle servo amplifier (with gain switching function), sled servo amplifier (with off function), focus detection (DRF, FZD), track detection (HFL, TES), defect detection, and shock detection.
64 1 0.8 (1.0) 0.35 16 17
17.2
0.15
3.0max
(2.7)
Features
* The following automatic adjustment functions are built in. * Focus offset auto cancel : FE (pin 20) * Tracking offset auto cancel : TE (pin 7). * EF balance auto adjustment. * RF level AGC function. * Tracking servo gain RF level following function. * Focus search smoothing setting pin : FSC (pin 46) * EF balance adjustment variable range setting pin : (pin 47) * Focus search mode switching pin : (pin 55) * Play disc (Normal, CD-RW) mode switching pin : (pin 38)
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
41902AS (KT) No.7097-1/20
0.1
SANYO : QFP64E
0.8
LA9242M Specifications
Maximum Ratings at Ta = 25C, Pins 22, 45=GND
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Pin 56, 64 Conditions Ratings 7 350 -25 to +75 -40 to +150 Unit V mW
C C
Operating Conditions at Pins 22, 45=GND
Parameter Recommended supply voltage Allowable operating supply voltage Symbol VCC VCC op Conditions Ratings 5 3.2 to 5.5 Unit V V
Operating Supply Voltage at Limit of Operating Temperature at Pins 22, 45=GND
Parameter Operating temperature Allowable operating supply voltage Symbol Topr2 VCC op2 Conditions Ratings -10 to +75 3.0 to 5.5 Unit C V
Operating Characteristics at Ta=25C, Pins 22, 45=GND, VCC (pins 56, 64)=5V
Parameter Current drain Reference voltage [Interface] CE-Vth CL-Vth DAT-Vth Maximum CL frequency [RF amplifier] RFSM no signal voltage RF amplifier (Normal) RF amplifier (CD-RW) [Focus amplifier] FDO gain (Normal) FDO gain (CD-RW) FDO offset (Normal) FDO offset (CD-RW) Off time offset (Normal) Off time offset (CD-RW) Offset adjustment step F search voltage H1 F search voltage L1 F search voltage H2 F search voltage L2 [Tracking amplifier] TE gain MAX (Normal) TE gain MAX (CD-RW) TE gain MIN (Normal) TE gain MIN (CD-RW) TE-3dB (Normal) TE-3dB (CD-RW) TO gain TGL offset (Normal) TGL offset (CD-RW) TGH offset (Normal) TGH offset (CD-RW) THLD offset (Normal) THLD offset (CD-RW) Off 1 offset Off 2 offset TEgmax1 TEgmax2 TEgmin1 TEgmin2 TEfc1 TEfc2 TOg TGLost1 TGLost2 TGHost1 TGHost2 THLDost1 THLDost2 OFF1ost OFF2ost f=10kHz, E : 1M-input, PH1=4V, RW=H f=10kHz, E : 1M-input, PH1=4V, RW=L f=10kHz, E : 1M-input, PH1=1V, RW=H f=10kHz, E : 1M-input, PH1=1V, RW=L E : 1M-input, RW=H E : 1M-input, RW=L TH TO gain, THLD mode Servo on, TGL=H, TO, RW=H Servo on, TGL=H, TO, RW=L TGL=L, difference from TGL offset, TO, RW=H TGL=L, difference from TGL offset, TO, RW=L THLD mode, difference from TGL offset, TO, RW=H THLD mode, difference from TGL offset, TO, RW=L TOFF=H TOFF2 off (IF) 4.0 -250 -450 -50 -50 -50 -50 -50 -50 6.0 18.0 -0.5 11.5 7.5 19.5 +1.8 13.8 80 80 6.0 0 0 0 0 0 0 0 0 8.0 +250 +450 +50 +50 +50 +50 +50 +50 9.0 21.0 +4.0 16.0 dB dB dB dB kHz kHz dB mV mV mV mV mV mV mV mV FDg1 FDg2 FDost1 FDost2 FDofost1 FDofost2 FDstep FSmax1 FSmin1 FSmax2 FSmin2 FIN2 : 1M-input, FDO, RW=H FIN2 : 1M-input, FDO, RW=L Difference from reference voltage, servo on, RW=H Difference from reference voltage, servo on, RW=L Difference from reference voltage, servo off, RW=H Difference from reference voltage, servo off, RW=L FE FDO, FSS=GND FDO, FSS=GND FDO, FSS=VCC FDO, FSS=VCC 3.5 15.5 -170 -190 -40 -40 5.0 17.0 0 0 0 0 19 0.8 -0.8 0.8 0 6.5 18.5 +170 +190 +40 +40 dB dB mV mV mV mV mV V V V V RFSMo RFSMgmin1 RFSMgmin2 FIN1, FIN2 : 1M-input, PH1=4V, freq=200kHz, RFSM, RW=H FIN1, FIN2 : 1M-input, PH1=4V, freq=200kHz, RFSM, RW=L 1.35 -12.0 0 1.60 -10.5 1.5 1.85 -9.0 3.0 V dB dB CEvth CLvth DATvth CL max CE CL DAT 500 0.8 0.8 0.8 V V V kHz Symbol ICCO VREF Conditions VCC1 (pin 64)+VCC2 (pin 56) VR Ratings min 24 2.3 typ 34 2.5 max 44 2.7 Unit mA V
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LA9242M
Continued from preceding page.
Parameter [Tracking amplifier] Offset adjustment step Balance range H Balance range L TOFF-VTH TGL-VTH [PH] No signal voltage [BH] No signal voltage [DRF] Detection voltage Output voltage H Output voltage L [FZD] Detection voltage 1 Detection voltage 2 [HFL] Detection voltage Output voltage H Output voltage L [TES] Detection voltage LH Detection voltage HL Output voltage H Output voltage L [JP] Output voltage H Output voltage L [Spindle amplifier] Offset 12 Offset 8 Offset off Output voltage H12 Output voltage L12 Output voltage H8 [Sled amplifier] SLEQ offset Offset SLD Offset off Disc switching [SLC] No signal voltage [Shock] No signal voltage Detection voltage H Detection voltage L [DEF] Detection voltage Output voltage H Output voltage L [APC] Reference voltage Off voltage LDS LDDoff LDS voltage at which LDD=3V LDD 160 3.9 190 4.3 220 4.6 mV V DEFvth DEF-H DEF-L Difference between LF2 voltage when RFSM=3.5V and DEF is detected and LF2 voltage when RFSM=3.5V 0.20 4.5 0.35 4.9 0 0.5 0.50 V V V SCIo SCIvthH SCIvthL SCI, difference from VR SCI, difference from VR SCI, difference from VR -40 60 -140 0 100 -100 +40 140 -60 mV mV mV SLCo SLC 2.25 2.5 2.75 V SLEQost SLDost SLDof RWvth Difference from TO at SLEQ SLEQ=VR, difference from VR Off mode RW -30 -100 -40 1.5 0 0 0 2.0 +30 +100 +40 2.7 mV mV mV V SPD12ost SPD8ost SPDof SPD-H12 SPD-L12 SPD-H8 Difference from VR at SPD, 12cm mode Difference from VR at SPD, 8cm mode Difference from VR at SPD, OFF mode Difference from offset-12, 12cm mode, CV+=5V, CV-=0V Difference from offset-12, 12cm mode, CV+=0V, CV-=5V Difference from offset-8, 8cm mode, CV+=5V, CV-=0V -40 -40 -30 0.75 -1.25 0.35 0 0 0 1.0 -1.0 0.5 +40 +40 +30 1.25 -0.75 0.65 mV mV mV V V V JP-H JP-L Difference from JP+=0V, JP-=0V at JP+=0V, JP-=5V, TO Difference from JP+=0V, JP-=0V at JP+=5V, JP-=0V, TO 0.35 -0.65 0.5 -0.5 0.65 -0.35 V V TES-LH TES-HL TES-H TES-L TESI, difference from VR TESI, difference from VR -0.15 0.05 4.5 -0.10 0.10 4.9 0 0.5 -0.05 0.15 V V V V HFLvth HFL-H HFL-L Difference from VR at RFSM -0.55 4.5 -0.4 4.9 0 0.5 -0.25 V V V FZD1 FZD2 FE, difference from VR FE, difference from VR 0 +0.2 0 V V DRFvth DRF-H DRF-L Difference from VR at RFSM -0.4 4.5 -0.2 4.9 0 0.5 0 V V V BHo Difference from RFSM 0.45 0.65 0.85 V PHo Difference from RFSM -0.85 -0.65 -0.45 V TEstep BAL-H BAL-L TOFFvth TGLvth TE Gain E/F input, TB=5V, TBC=open Gain E/F input, TB=0V, TBC=open 1.0 1.0 70 3.5 -3.5 2.5 2.5 3.0 3.0 mV dB dB V V Symbol Conditions Ratings min typ max Unit
No.7097-3/20
LA9242M
Pin Functions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Symbol FIN2 FIN1 E F TB TE- TE TESI SCI TH TA TD- TD JP TO FD FD- FA FA- FE FE- AGND NC SP SPG SP- SPD SLEQ SLD SL- SL+ JP- JP+ TGL TOFF TES HFL RW CV- CV+ RFSM RFS- SLC SLI DGND FSC TBC NC DEF CLK CL DAT CE Contents Pickup photodiode connection pin. Added to FIN1 pin to generate the RF signal, subtracted from FIN1 pin to generate the FE signal. Pickup photodiode connection pin. Pickup photodiode connection pin. Subtracted from pin F to generate the TE signal. Pickup photodiode connection pin. TE signal DC component input pin. Pin which connects the TE signal gain setting resistor between this pin and TE pin. TE signal output pin. TES (Track Error Sense) comparator input pin. The TE signal is input through a bandpass filter. Shock detection input pin. Tracking gain time constant setting pin. TA amplifier output pin. Pin for configuring the tracking phase compensation constant between the TD and VR pins. Tracking phase compensation setting pin. Tracking jump signal (kick pulse) amplitude setting pin. Tracking control signal output pin. Focusing control signal output pin. Pin for configuring the focusing phase compensation constant between the FD and FA pins. Pin for configuring the focusing phase compensation constant between the FD- and FA- pins. Pin for configuring the focusing phase compensation constant between the FA and FE pins. FE signal output pin. Pin which connects the FE signal gain setting resistor between this pin and FE pin. Analog signal GND. No connection CV+ and CV- pins input signal single-end output. 12-cm spindle mode gain setting resistor connection pin. Spindle phase compensation constant connection pin, along with the SPD pin. Spindle control signal output pin. Sled phase compensation constant connection pin. Sled control signal output pin. Input pin for sled movement signal from microcontroller. Input pin for sled movement signal from microcontroller. Input pin for tracking jump signal from DSP. Input pin for tracking jump signal from DSP. Input pin for tracking gain control signal from DSP. Gain is low when TGL is high. Input pin for tracking off control signal from DSP. Tracking servo is off when TOFF is high. Output pin for TES signal to DSP. The High Frequency Level is used to determine whether the main beam is positioned over a bit or over the mirrored surface. Input pin for gain setting, according to CD or RW disc. Gain is high (RW disc mode), when RW is low. Input pin for CLV error signal from DSP. Input pin for CLV error singal from DSP. RF output pin. RF gain setting and EFM signal 3T compensation constant setting pin, along with the RFSM pin. Slice Level Control is an output pin that controls the data slice level used by the DSP for the RF waveform. Input pin used by DSP for controlling the data slice level. Digital system GND pin. Focus search smoothing capacitor output pin. Tracking Balance Control ; EF balance adjustment variable range setting pin. No connection Disc defect detection output pin. Reference clock input pin. 4.23MHz signal from the DSP is input. Microprocessor command clock input pin. Microprocessor command data input pin. Microprocessor command chip enable input pin.
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LA9242M
Continued from preceding page.
Pin No. 54 55 56 57 58 59 60 61 62 63 64 Symbol DRF FSS VCC2 REFI VR LF2 PH1 BH1 LDD LDS VCC1 RF level detection output (Detect RF). Focus Search Select ; focus search mode ( search/+search vs. the reference voltage) switching pin. Servo system and digital system VCC pin. By-pass capacitor connection pin for reference voltage. Reference voltage output pin. Disc detect detection time constant setting pin. RF signal peak hold capacitor connection pin. RF signal bottom hold capacitor connection pin. APC circuit output pin. APC circuit input pin. RF system VCC pin. Contents
Block Diagram
VCC1 VCC2
REFI
FSS DRF CE DAT CL CLK 55 54 53 52 51 50
LDD
64
63 APC
62
61
60
59
58 REF
57 56
49
DEF
LDS
BH1
PH1
LF2
VR
FIN2 1 FIN1 2 I/V E3 BAL F4 VCA
RF DET
48 NC
VCA
47 TBC 46 FSC microcontrollers INTERFACE SLC 45 DGND 44 SLI 43 SLC
TB 5 TE-- 6 TE 7 TESI 8 SCI 9 TH 10 TA 11 TD-- 12 F.SERVO & F.LOGIC TD 13 JP 14 SPINDLE SERVO SLED SERVO TE
-- 42 RFS
T.SERVO & T.LOGIC
RF Amp
41 RFSM + 40 CV -- 39 CV 38 RW 37 HFL 36 TES 35 TOFF 34 TGL + 33 JP
TO 15 FD 16 SPG SP-- SL-- SL+ FA-- FD-- FE FE-- AGND SLEQ SPD SLD JP-- 17 18 FA 19 20 21 22 23 NC 24 25 26 SP 27 28 29 30 31 32
No.7097-5/20
LA9242M
Test Circuit
VCC
0.1F 47F 0.1F 47F
+ +
10F 0.47F 0.01F
+
0.33F
+
REF LF2 VR
REFI 0.1F
VCC1
VCC2
DRF
LDD
DAT
64
63
62
61
60
59
58
57 56 55 54 53 52 51 50 49 48
NC
F2I F2IAC F1I F1IAC EI EIAC FI FIAC REF
FIN2
1M 1M 0.01F
1 2 3 45 4 5 42 6 7 8 9 10 11 12 13 14 15 16 17
FD-
39k
DEF
LDS
CLK
BH1
PH1
FSS
CE
CL
FIN1
47 46
TBC FSC DGND SLI
100pF 100k 100k
1M 1M 0.01F 1M 1M 0.01F 1M 1M 0.01F 0.01F
E
F
44 43
SLII
SLC RFS-
TB TE- TE
100k 20k
10k
TESIAC
0.01F
TESI SCI TH
0.068F
LA9242M
REF REF
TA
68k
TD-
68k
TD JP
2k
41 + CV 40 - CV 39 RW 38 HFL 37 TES 36 TOFF 35 TGL 34 + JP 33
RFSM
20k
REF
TO FD
18
FA
15k
19
FA-
20 21 22 23 24 25 26
AGND NC
50k SP 20k FE
27 28
15k SPD
29
SLD
30 31 32
20k
SLEQ
SPG SP-
FE-
SL-
30k
100pF
REF
REF
SLI-- SLI+
20k
SL+ JP-
No.7097-6/20
LA9242M
Description of Operation 1. APC (auto laser power control) This circuit controls the pickup laser power. The laser is turned on and off by commands from the microcontroller. 2. RF amplifier (eye pattern output) The pickup photodiode output current (A+C) is input to FIN2 (pin 1), and (B+D) is input to FIN1 (pin 2). The current that is input is converted to the voltage, passes through the AGC circuit, and is then output from the RFSM amplifier output RFSM (pin 41). The internal AGC circuit has a variable range of 3dB, and the time constant can be changed through the external capacitor connected to PH1 (pin 60). In addition, this circuit also controls the bottom level of the EFM signal (RFSM output), and the response can be changed through the external capacitor connected to BH1 (pin 61). The center gain setting for the AGC variable range is set by the resistance between RFSM (pin 41) and RFS- (pin 42) ; if necessary, this resistance is also used for 3T compensation for the EFM signal. If RW disc is detected, input signal gain is set high by RW (pin 38) which accepts Low from the DSP. 3. SLC (slice level control) The SLC sets the duty ratio for the EFM signal that is input to the DSP to 50%. The DC level determined by integrating the EFMO signal output from the DSP to determine the duty factor. 4. Focus servo The focus error signal is derived by detecting the difference between (A+C) and (B+D), which is (B+D) - (A+C), and is then output from FE (pin 20). The focus error signal gain is set by the resistance between FE (pin 20) and FE- (pin 21). If RW disc is detected, input signal gain is set high by RW (pin 38) which accepts Low from the DSP. Offset cancellation is performed by the FE amplifier. "Offset cancellation" cancels the offset for the IC's internal IV amplifier, etc. Adjustment is initiated by the FOCUS-OFFSET ADJUST START command, and terminates after about 30 ms. The FOCUS-OFFSET ADJUST OFF command is used to return to the state before offset cancellation.The FA amplifier is the pickup phase compensation amplifier, and the equalizer curve is set by the external capacitor and resistance. Furthermore, this amplifer has a mute function which is applied when VCC is turned on, when the F-SERVO OFF command is sent, and during F-SEARCH. In order to turn the focus servo on, send either the LASER ON command or the F-SERVO ON command. The FD amplifier has a phase compensation circuit, a focus search signal composition function and is completed in about 560 ms. Focus seach is initiated by the F-SEARCH command, and a ramp waveform is generated by the internal clock. This waveform is used for focus detection (focus zero cross) with the focus error signal and then turn the focus servo on. The ramp waveform amplitude is set by the resistance between FD (pin 16) and FD- (pin 17). FSC (pin 46) is for smoothing the focus search ramp waveforms, and a capacitor is connected between FSC and REF. FSS (pin 55) is the focus search mode switching pin. If FSS is shorted with VCC, the "+ search" is set ; if FSS is left open or is shorted with GND, the " search" is set. 5. Tracking servo The pickup photodiode output current is input to E (pin 3) and F (pin 4). The current that is input is converted to the voltage, passes through the balance adjustment VCA circuit and then the VCA circuit that follows the gain in the RFAGC circuit, and is then output from TE (pin 7). The tracking error gain is set by the resistance between TE- (pin 6) and TE (pin 7). If RW disc is detected, input signal gain is set high by RW (pin 38) which accepts Low from the DSP. Offset cancellation is performed by the TE amplifier. Offset cancellation terminates after about 30 ms. The TRACK-OFFSET ADJUST OFF command is used to return to the state before the offset. The TH amplifier alters the servo response characteristics according to the THLD signal, etc., generated internally after detection of the TGL signal from the DSP or the JP signal. When a defect is detected, the THLD mode goes into effect internally. To avoid this, short DEF (pin 49) to L=GND. By inserting an external bandpass filter to remove the shock component from the tracking error signal at SCI (pin 9), the gain is automatically boosted when a defect is detected. The TA output (pin 11) has a built-in resistance to allow configuration of a low-pass filter. The TD amplifier performs servo loop phase compensation ; the characteristics are set by external CR. Furthermore, this amplifer has a mute function, which is applied when VCC is turned on or the TRACK-SERVO OFF command is issued. The muting function is released by the TRACK-SERVO ON command. The TOFF amplifier that is positioned immediately after TD (pin 13) functions to turn off the servo in response to the TOFF signal from the DSP. The TO amplifier has a JP pulse composition function. The JP pulse is set by JP (pin 14). (THLD detection is performed internally.)
No.7097-7/20
LA9242M
6. Sled servo The response characteristics are set by SLEQ (pin 28). The amplifier positioned after SLEQ (pin 28) has a mute function that is applied when the SLED OFF command is issued. The sled is moved by inputting current to SL- (pin 30) and SL+ (pin 31) ; specifically, the pins are connected to the microprocessor output ports via resistors, and the movement gain is set by the resistance value of that resistor. It is important to note that if there is a deviation in the resistance values for SL- (pin 30) and SL+ (pin 31), an offset will arise in the SLD output. 7. Spindle servo This configures the servo circuit, which maintains the linear velocity of the disc at a constant speed, along with the DSP. This circuit accepts signals from the DSP through CV- (pin 39) and CV+ (pin 40) and sets the equalizer characteristics through SP (pin 24), SP- (pin26), and SPD (pin 27), which are output to SPD (pin 27). The 12-cm mode amplifier gain is set by the resistor connected between SPG (pin 25) and the reference voltage. In 8-cm mode, this amplifier serves as an internal buffer, and SPG (pin 25) is ignored. Note that the gain setting is made for 8-cm mode first, and then 12-cm mode. If SPG (pin 25) is left open, the gain is forcibly set for 8-cm mode, regardless of whether 8-cm or 12-cm mode is in effect. 8. TES and HFL (traverse signals) When moving the pickup from the outer track to the inner track, the EF output from the pickup must be connected so that the phase relationship of TES and HFL is as shown in the diagram below. For the TESI input, the TES comparator has negative polarity and hysteresis of approximately 100mV. An external bandpass filter is needed in order to extract only the required signal from the TE signal.
3.0V RFSM 2.1V 1.5V
HFL
TES
TE
9. DRF (luminous energy determination) DRF goes high when the peak of the EFM signal (RFSM output) held by the PH1 (pin 60) capacitor exceeds approximately 2.3V. The PH1 (pin 60) capacitor affects the DRF detection time constant and the RFAGC response bidirectional setting. The DRF output is driven by a constant current (250A).
DRF 3.0V RFSM FE Pickup position Focus 2.3V 1.5V
10. Focus determination Focus is assumed to be obtained when the focus error signal S curve reaching REF +0.2V is detected, and the S curve subsequently returns to REF.
REF+0.2V
Focus
No.7097-8/20
LA9242M
11. DEFECT The mirrored surface level is maintained by the capacitor for LF2 (pin 59) ; when a drop in the EFM signal (RFSM output) reaches 0.35V or more, a high signal is output to DEF (pin 49). If DEF (pin 49) goes high, the tracking servo enters THLD mode. In order to prevent the tracking servo from entering THLD mode when a defect is detected, prevent DEFECT from being output by either shorting DEF (pin 49) to GND, or shorting LF2 (pin 59) to GND. The DEFECT output is driven by constant current (approximately 100A).
EFM signal (RFSM output)
LF2 (pin 59)
0.35V
DEF (pin 59)
12. Microcontroller interface Because the Reset (Nothing) command initializes the LA9242M, it must be used carefully. The LA9242M command acceptance (mode switching) timing is defined by the internal clock (4.23MHz divided to 130kHz) after the falling edge of CE (RWC) ; therefore, when commands are sent consecutively, CE must go low for at least 10s. The 4.23MHz clock is required for that reason. 2BYTE-COMMAND DETECT and 2BYTECOMMAND RESET are used only for the purpose of masking two-byte data. All instructions can be input by setting CE high and sending commands synchronized with the CL clock from the microcontroller to DAT (pin 52) in LSB first format. Note that the command is executed at the falling edge of CE. Timing
CE(RWC)
CL(CQCK)
DAT(COIN)
LSB
MSB
* The DSP pin names are shown in parentheses. 13. Reset circuit The power-on reset is released when VCC exceeds approximately 2.6V. 14. Pattern design notes To prevent signal jump-in from CV+ (pin 40) to RFSM (pin 41), a shielding line is necessary in between. 15. VCC /REF/GND/NC VCC1 (pin 64) : RF system VCC2 (pin 56) : SERVO system, DIGITAL system AGND (pin 22) : RF system, SERVO system DGND (pin 45) : DIGITAL system NC (pin 23, 48) : No connection VR (pin 58) : Refered voltage
No.7097-9/20
LA9242M
Microcontroller Command List
MSB LSB RESET FOCUS START 2BYTE-COMMAND DETECT 2BYTE-COMMAND DETECT 2BYTE-COMMAND RESET FOCUS-OFFSET ADJUST START FOCUS-OFFSET ADJUST OFF TRACK-OFFSET ADJUST START TRACK-OFFSET ADJUST OFF LASER ON LASER OFF ; F-SERVO ON LASER OFF ; F-SERVO OFF SPINDLE 8CM SPINDLE 12CM SPINDLE OFF SLED ON SLED OFF E/F BALANCE START TRACK-SERVO OFF TRACK-SERVO ON Non-adjusted Command Reset mode Power-on mode DSP RESET (NOTHING) FOCUS START #1 2BYTE-COMMAND DETECT 2BYTE-COMMAND DETECT 2BYTE-COMMAND RESET - - - - - - - - - - - - - - -
00000000 00001000 11110000 11111000 11111111 10010000 10010001 10010010 10010011 10010100 10010101 10010110 10010111 10011000 10011001 10011010 10011011 10011100 10011101 10011110
Notes Concerning Microcontroller Program Creation 1. Commands After sending the FOCUS START command and the E/F BALANCE START command, send 11111110 (FEH) in order to clear the internal registers of the IC. Reason : Although the above commands are executed at point in the timing chart below, the same commands will be executed again at point TM if there is subsequent input to CE as shown below. Timing
2s or more CE 1s or more CL 1s or more DAT LSB 0 0 0 0 0 1 1 1 0 1 0 0 0 0 MSB 0 : "FOCUS START" command 1 : "E/F BALANCE START" command 2s or more 1 10s or more 2
When sending the TRACK-OFFSET ADJUST START command or the FOCUS-OFFSET ADJUST START command after either VCC ON (POWER ON RESET), RESET command, or a corresponding OFFSET ADJUST OFF command, waiting time is necessary as listed below. (Only when a 4.2MHz clock is input.) TRACK-OFFSET ADJUST START : 4ms or more FOCUS-OFFSET ADJUST START : 4ms or more 2. E/F balance adjustment E/F balance adjustments should be made in a bit region of the disc, not a mirrored region. Since there is no track-kick for LA9242M, measures must be taken during EF balance adjustment to obtain a stable TE signal. (By a sled movement signal from a microcontroller, for example.)
No.7097-10/20
LA9242M
Pin Internal Equivalent Circuit
Pin No. Pin name Internal equivalent circuit
1
1 2 FIN2 FIN1
(2) 60k 2k 190k
VREF 100k
3 4 E F
3 (4) 100k 5pF
10pF
5 6 17 21 26 28 44
TB TE- FD- FE- SP- SLEQ SLI
VREF (6,17,21, 26,28,44) 5
VCC
16 27 43
FD SP D SLC
(27,43) 16
300
300
GND
8
VCC
8 36
TESI TE S
1k 36 200k
GND
Continued on next page.
No.7097-11/20
LA9242M
Continued from preceding page.
Pin No. Pin name Internal equivalent circuit
9 VCC
9 34 SCI TGL
VREF 2k
50k
50k 34
2k VREF
50k GND
10 30k
7 10 TE TH
VCC
300 33k 300
66k 7
GND
11
VCC
11 12
TA TD-
10k 12
300 300
GND
13 VREF
VCC 10k
300
13 TD
10k VREF
300
GND
Continued on next page.
No.7097-12/20
LA9242M
Continued from preceding page.
Pin No. Pin name Internal equivalent circuit
14
VCC 50k
VREF VREF 4k
4k
14 JP
50k
VREF
GND
20k 10k
15
VCC VREF 40k 300
15
TO
300
10pF
GND
18 VREF 240k VREF
VCC
300
15pF 19
18 19 20 FA FA- FE
300
40k 20 VCC
GND
300
300
GND
Continued on next page.
No.7097-13/20
LA9242M
Continued from preceding page.
Pin No. Pin name Internal equivalent circuit
80k 24 SP VREF 300
25 SPG
VCC
300 5pF 25 50k GND
29
VREF 50k 10k
VREF
VCC
10k
300
29 30 31
SLD SL- SL+
300
GND 30
50k 31
VREF 32 60k
32 33 JP- JP+
VCC 20k 300
60k 33
20k
300
GND
35
VREF
35
TOFF
10k
Continued on next page.
No.7097-14/20
LA9242M
Continued from preceding page.
Pin No. Pin name Internal equivalent circuit
(46,49,54) 37
37 46 49 54 HFL FSC DEF DRF
VCC
1k
GND
38 30k 10k
38 RW
10k GND
VREF 39
CV- CV+ SP
VCC
60k 60k 40
10k 300
39 40 24
300 10k 80k
24
GND
42
5k
42 RFS-
VREF
VCC
VREF VREF 10k
1k
47 TBC
47
GND
Continued on next page. No.7097-15/20
LA9242M
Continued from preceding page.
Pin No. Pin name Internal equivalent circuit
50 50k
50 CLK
VREF
10k VREF
10k
(52,53) 51
51 52 53 CL DAT CE
VCC 50k 60k
GND
VCC 50k
55
FSS
10k 50k 55
57
VCC 20k
VCC
57 58
REFI VR
300 20k GND 58 GND 300
59 50k 50k
59 LF2
VCC
GND
Continued on next page.
No.7097-16/20
LA9242M
Continued from preceding page.
Pin No. Pin name Internal equivalent circuit
41 VCC
VCC 20k 5k 400 VREF 10k
41 60 61
RFSM PH1 B H1
GND 15k 60 GND
61
62
VCC
62
LDD
2k
180k
GND
63
63
LDS
No.7097-17/20
R-VCC REF DGND DGND
+ + +
D-VCC microcontrollers 100F
+
47F
0.01F
220F
DGND
1F
AGND 0.01F FSS DRF CE DAT CL CLK DEF JP
VCC1
000k
APC.ADJ LDS LASER 10
+
BH1
PH1
LF2 100F
0.022F VR 10F
AGND 59 AGND 58 57 NC DGND 47 10k 46 microcontrollers INTERFACE SLC 45 DGND REF 580 51 k 4.7F 0.047F FSC
+
0.001F LDD 0.33F
64 56 REF 48 5.1k JP
63 AGND 62 55 54 53 52 51 50 49
61
60
VCC
APC
Sample Application Circuit
DXX FIN2 TBC REF
1
RF DET
DXX
DXX FIN1
2
DXX
I/V
VCA
REFI 47F VCC2
0.01F
+
MONI DGND
+
D-VCC
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 TEST1 CS TEST5 4.2M 16M TEST11 RES CQCK COIN SQOUT RWC WRQ FSX SBCK SFSY PW
DXX
E
3
DXX
F
BAL
VCA
4
10pF 10pF 0.1F
+
0.22F
REF 4pF 20k
TB
5
100k
TE 22 k
DGND SLI 44 0.033F 0.001F SLC 43 10pF - 10k RFS 42 10k DGND RF Amp 0.01F 330
2.2k
LC78622E
100F DGND VDD 47F 0.1F
LA9242M
TE- 6 9.1k TE 7 0.033F TESI 8 REF 330pF SCI 9
T.SERVO & T.LOGIC
4.7k 0.1F 220k
0.22F TH 100 pF
10
REF
560 0.047F
0.0033F TA
TOFF TGL JP+ JP- PCK FSEQ
TD- SPINDLE SERVO SLED SERVO
12
10k
220k 27k
0.15F 0.047F
TD
F.SERVO & F.LOGIC
RFSM 41 CV+ 40 CV- 39 RW 38 HFL 37 TES 36 TOFF 35 TGL 34 JP+ 33
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 DGND
13
REF
JP
14 VDD
2.2k
P-OP
TO
15
FD 20 21 22 23 24 25 26 SLEQ SLD 27 28 29
16 30 31 32
17
18
19
FD-
FA-
15k
+ +
24k FE FE-
39k AGND 0.0047F NC
10F
No.7097-18/20
AGND
+
REF
0.47F
56 k P-OP
REF
47F 1.8k
330
SLD- SLD+ P-OP
0.0033F
0.001F
SL- 470k + 470k SL JP-
P-OP
47k SP 55k SPG SP-
0.15F 0.01F
100 pF
15k SPD
22k 0.22F 15k 33k 2.7k
FA
VDD CONT1 CONT2 CONT3 CONT4 CONT5 EMPH C2F DOUT TEST3
11
1 2 3 0.1F VDD 4 5 56k 6 7 1.2k 8 9 33k 10 11 DGND 12 13 14 15 16
DEFI TAI PDO VVSS ISET VVDD FR VSS EFMO EFMIN TEST2 CLV+ CLV- V/P HFL TES
EPLG SBSY XVSS XIN XOUT XVDD MUTER RVDD RCHO RVSS LVSS LCHO LVDD MUTEL N.C. TEST4
48 47 46 45 44 43 42 41 40 39 38 37 DGND 36 + 35 34 33
Type QFP-64E 5.5V 3.6V : t=-25 to +75 C 5.5V 3.2V : t=-25 to +75 C 3.0V : t=-10 to +75 C 32mA No Adjustment position : FE 30ms Adjustment position : TE 30ms Yes Yes 1.5Vp-p 0.9Vp-p : VCC=3.0V Yes Approx. 560ms x4 No output Yes Yes Yes 2.1V Approx. 100A 180mV : typ Pin 47, 48, 55 No Approx. 250A 180mV : typ Pin 48 No Yes Yes Yes 2 .1 V Approx. 250A 190mV : typ Pin 23, 48 No 34mA No 32mA No Adjustment position : FD 270ms Adjustment position : TO 30ms Yes Yes 1.8Vp-p 1.3Vp-p Yes Approx. 280ms x2 Built in No No No 2.3V Approx. 100A 180mV : typ Pin 46, 47, 48, 55 No No Pin 47, 48, 55 180mV : typ Approx. 100A 2.3V 2.3V No No No No Yes Yes No output No output x2 x4 x4 No output Approx. 1.1s Approx. 1.1s Yes Yes Yes Approx. 560ms 1.3Vp-p 1.3Vp-p 1.2Vp-p : VCC=3.4V Yes 1.8Vp-p Yes 1.8Vp-p Yes 1.8Vp-p Yes Yes Yes Adjustment position : FD 270ms Adjustment position : TO 30ms Adjustment position : FD 270ms Adjustment position : TO 30ms Adjustment position : FE 30ms Adjustment position : TE 30ms No No No 32mA 32mA 32mA 5.5V 3.6V : t=-25 to +75 C 5.5V 3.6V : t=-25 to +75 C 5.5V 3.6V : t=-25 to +75 C 3.4V : t=-5 to +75 C QFP-64E QFP-64E QFP-64E QFP-64E QFP-64E
LA9220M
LA9230M
LA9231M
LA9233M
LA9240M
LA9241M
LA9242M
Package
QFP-64E
Allowable operating supply voltage VCCop max VCCop min1 VCCop min2
5.5V 3.6V : t=-25 to +75 C
5.5V 3.2V : t=-25 to +75 C 3.0V : t=-10 to +75 C
Current drain (When VCC=5V) VCO circuit built in
40mA
Yes
Function Comparisons for CD-ASP
Auto adjustment function Adjustment position : FE 30ms Adjustment position : TE 30ms Yes Yes 1.5Vp-p 0.9Vp-p : VCC=3.0V Yes Approx. 560ms x 4 (Normal) No output Yes Yes Yes 2.1V Approx. 250A 190mV : typ Pin 23, 48 Yes
* Focus offset adjustment Maximum adjustment time Tracking offset adjustment Maximum adjustment time
Adjustment position : FD 270ms Adjustment position : TO 30ms
* E/F balance auto adjustment
Yes
Yes 1.8Vp-p
1.3Vp-p
* RE level AGC function RF waveform amplitude when VCC=5V RF waveform amplitude when VCC min * Tracking servo gain RF level following function
Yes
LA9242M
Focus search time
Approx. 280ms
Regeneration speed
x2
Built in
No
No
Track-kick signal output (Track-kick during E/F balance adjustment) Focus search smoothing capacitor pin : FSC E/F balance variable range setting pin : TBC Focus search mode switch pin : FSS
No
Vth for HFL detection
2.3V
DRF current capacity
Approx. 100A
APC reference voltage LCD voltage where LDD=3V
180mV : typ
No connection
Available for RW disc
No
No.7097-19/20
LA9242M
Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be expor ted without obtaining the expor t license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of April, 2002. Specifications and information herein are subject to change without notice.
PS No.7097-20/20

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