KB9223 Samsung, KB9223 Datasheet
KB9223
Related parts for KB9223
KB9223 Summary of contents
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... KB9223 / KB9223-L OVERVIEW The KB9223 is a 1-chip BICMOS integrated circuit to per- form the function of RF amp and servo signal processor for compact disc player applications.It consist of blocks for RF signal processing ,focus, tracking, sled and spindle servo.Also this IC has adjustment free function and embed- ded opamp for audio post filter ...
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... KB9223 / KB9223-L BLOCK DIAGRAM 59 73 RF- RF Amp 74 RFO 65 PD1 Focus Error Amp 66 PD2 FE-BIAS Adjustment FEBIAS Tracking Error Amp 68 E/F Balance & Gain E Control LDON APC Amp 70 LD Center Voltage Amp EQC RF Level AGC & 76 EQO Equalizer 75 IRF ...
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... KB9223 / KB9223-L PIN CONFIGURATION PD1 66 PD2 VCC 73 RF- 74 RFO 75 IRF 76 EQO 77 RFI 78 EQC GND AMP & SERVO SIGNAL PROCESSOR KB9223 ...
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... KB9223 / KB9223-L PIN DESCRIPTION Table 1. PIN DESCRIPTION Pin No. Symbol 1 MCP Capacitor connection pin for mirror hold 2 DCB Capacitor connection pin for defect Bottom hold 3 FRSH Capacitor connection pin for time constant to generate focus search waveform 4 DCC2 The input pin through capacitor of defect bottom hold output ...
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... KB9223 / KB9223-L Table 1. PIN DESCRIPTION (Continued) Pin No. Symbol 27 FS3 The pin for high frequency gain change of focus loop with internal FS3 switch 28 FGD Reducing high frequency gain with capacitor between FS3 pin 29 LOCK Sled runaway prevention pin 30 TRCNT Track count output pin ...
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... KB9223 / KB9223-L Table 1. PIN DESCRIPTION (Continued) Pin No. Symbol 75 IRF The input pin for AGC 76 EQO The output pin for AGC 77 RFI Tne input pin for EFM comparision 78 EQC The capacitor connection pin for AGC 79 EI Feedback input pin of E I/V amplifier for EF Balance control ...
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... KB9223 / KB9223-L ABSOLUTE MAXIMUM RATINGS Table 2. Absolute Maximum Ratings Characteristic Supply Voltage Power Dissipation Operating Temperature Storage temperature ELECTRICAL CHARACTERISTICS Table 3. Electrical Characteristics (Ta=25 C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V ) Characteristic Supply Current High Supply Current Typ Supply Current Low RF Amp Offset Voltage ...
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... KB9223 / KB9223-L Table 3. Electrical Characteristics (Continued) (Ta=25 C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V ) Characteristic Tracking Error Offset Voltage Tracking Error Amp Voltage Gain F Tracking Error AmpVoltage Gain E Tracking Error Amp Voltage Gain Difference Tracking Error Amp Maximum Output Voltage H Tracking Error Amp ...
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... Fmute SG2 2.5V+0.1Vp-p,1KHz,sine Tmute SG2 2.5V+0.1Vp-p,1KHz,sine Imute SG2 2.5V+0.1Vp-p,1KHz,sine Fdfct1 SG3 2.520 V+0.04Vp-p, 1KHz,sine Fdfct2 SG3 2.520V+0.04Vp-p, 2KHz,sine Vdfct1 SG 3 2.510V+0.020Vp-p, 1KHz,sine M/M-97-P006 1997. 10 .17 KB9223 / KB9223-L Output Min Typ Max pin 70 3 pin 1.2 pin 70 4 pin 70 ...
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... KB9223 / KB9223-L Table 3. Electrical Characteristics (Continued) (Ta=25 C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V ) Characteristic Defect Maximum Input Voltage EFM Duty Voltage 1 EFM Duty Voltage 2 EFM Minimum input Voltage EFM Maximum input Voltage EFM Maximum Operating Frequency FZC Threshold Voltage ATSC Threshold Voltage 1 ...
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... KB9223 / KB9223-L Table 3. Electrical Characteristics (Continued) (Ta=25 C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V ) Characteristic Focus Output Voltage H Focus Output Voltage L Focus Output Drive Voltage H Focus Output Drive Voltage L Focus Oscillation Voltage Focus Feed Through Focus AC Gain 1 Focus AC Phase 1 Focus AC Gain 2 Focus AC Phase 2 ...
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... KB9223 / KB9223-L Table 3. Electrical Characteristics (Continued) (Ta=25 C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V ) Characteristic Tracking AC Phase 1 Tracking AC Gain 2 Tracking AC Phase 2 Tracking Loop Gain Sled DC Gain Sled Feed Through Sled Output Voltage H Sled Output Voltage L Sled Output Drive Voltage H Sled Output Drive Voltage L ...
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... Vteol Vrfpp1l Vrfpp2l Vfepp1l Vfepp2l Vtepp1l Vtepp2l Vapc1l Vapc2l Vapc3l Vapc4l Vapc5l Vapc6l Vfoktl Vpom1 SG1 2.5V+3.2Vp-p,1KHz, within THD 1% M/M-97-P006 1997. 10 .17 KB9223 / KB9223-L Output Min Typ Max pin 48 2. pin 0.68 pin 48 -0.64 -0.50 -0.36 pin 48 0.36 0.50 0.64 pin 50 ...
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... KB9223 / KB9223-L Table 3. Electrical Characteristics (Continued) (Ta=25 C, VDD = DVDD = VCC = +5V, VSS = DVSS = GND = VSSP = 0V ) Characteristic Post Filter Output Voltage max. 2 Total Harmonic Distoration 1 Total Harmonic Distoration 1 Total Harmonic Distoration 1 Total Harmonic Distoration 1 Total Harmonic Distoration 1 Total Harmonic Distoration 2 Total Harmonic Distoration 2 Total Harmonic Distoration 2 ...
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... Cross talk 2L Cross talk 2L Cross talk 2L Signal to noise ratio 1L Signal to noise ratio 2L Channel balance L Note1) The notation $ means hexa decimal of micom command Note2) Low voltage test items only refer to KB9223-L RF AMP & SERVO SIGNAL PROCESSOR Symbol Test Conditions Vpom1L Vpom2L THD11L ...
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... KB9223 / KB9223-L TEST CIRCUIT 3300PF MCP 1000PF DCB SW4 4.7UF FRSH DCC2 DCC1 0.01PF FSET 510K VDDA VCCP 4.7UF 27K SWP1 GC2I SW1 GC2O 5.6K 0.001UF CH2I 3.3UF CH2O 10K 3.3UF CH1O 10K 5.6K CH1I GC1O 4.7UF SW2 27K GC1I 4.7UF SWP2 RRC ...
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... KB9223 / KB9223-L FUNCTION DESCRIPTION 1.RF Amp Block 1.1 RF Amplifier The optical currents inputted through pins PD1(A+C) and PD2(B+D) are converted into voltages through I-V amp, and they are added to RF summing amp. The voltage, converted from the photo diode (A+B+C+D) signal, is outputted through RFO(pin74) and the eye pattern can be checked at this pin. ...
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... KB9223 / KB9223-L 1.3 Tracking Error Amp The optical currents detected from the side photo diode (E and F) pf pick-up are inputted to the E and F pin and converted into voltage signals by E I-V and F I-V amp. The output of tracking error amp generates the difference between E I-V AMP and F I-V AMP voltage output. ...
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... KB9223 / KB9223-L 1.5 Mirror Circuit IRF signal is amplified by the mirror amp, and the peak and bottom component of amplified signal are detected by peak and bottom hold circuit. The peak hold circuit covers traverse signal 100KHz component and bottom hold circuit capable of covering the envelope frequency of disc rotation. The time constant for the mirror hold must be sufficiently larger than that of the traverse signal ...
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... KB9223 / KB9223-L 1.7 Defect Circuit The RFO signal bottom, after being inverted, is held with two time constants of long and short. The short time-constant bottom hold is done for a disc mirror defect more than 0.1msec, the long time- constant bottom hold is done with the mirror level prior to the defect. By differentiating this with a capacitor coupling and shifting the level, both signals are compared to generate the mirror defect detection signal ...
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... KB9223 / KB9223-L 1.9 AGC Stability Circuit The AGC block is the function used to maintain the constant level of RF peak to peak voltage. After the operation of RF envelop detection and comparing with reference voltage, RFO level is kept stable in 1Vp- p, and inputted to EFM Slice. 1.10 Post Filter The adjustment of audio output gain and the integration of possible de-emphasis output are executed by this circuit ...
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... KB9223 / KB9223-L 2.Servo Block 2.1 Focus Servo Block When defect is "H"(the defect signal is detected), the focus servo loop is muting in case of focus phase compensation. At this time, the focus error signal is outputted through the low pass filter formed by connecting a capacitor(0.1uF) and a built-in 470K focus error output is held at the error value just before defect error during defect occurring ...
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... KB9223 / KB9223-L 2.2 Tracking Servo Block During detection of defect, the tracking error signal is outputted through the tracking servo loop after passing the low pass filter formed by connecting a capacitor(0.1uF) and a built-in 470K TDFCT pin(pin57) in case of tracking phase compensation. The value of tracking gain up/down can be controlled by TGU and TG2 pin ...
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... KB9223 / KB9223-L 2.3 Sled Servo Block The moving of pick-up is controlled by tracking servo output through a low pass filter. The sled kick voltage is outputted for track jump operation. 2.4 Spindle Servo Block The 20K resistor and 0.33uF capacitor form the 200Hz low pass filter, and the carrier component of spindle servo error signals is eliminated. In CLV-S mode, SMEF becomes " ...
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... KB9223 / KB9223-L 3.Digital Block 3.1 Description Digital block is transferred serial data by micom and 8-bit serial data is converted to parallel data by serial to parallel register. This data is decoded by latch signal. The status output of focus servo,track- ing servo,and sled servo system,etc is determined by each data. The auto-sequence function process 2~4 micom command by one auto-sequence command ...
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... KB9223 / KB9223-L 3.2 Micom Command Set Table 5. Servo control command set Item Hexa Address D7 D6 Focus Con- $0X 0 trol Tracking $1X 0 Control Tracking $2X 0 Mode Select $3X 0 Auto $4X 0 Sequence R Blind/ A over- $ flow Break S E Kick $ jump $7X 0 move (M) Auto Adj ...
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... KB9223 / KB9223-L 3.2.1 Focus Control($0X) This command consists of 8 bits data and expressed by two hexa $0X -Focus Search Operation(FS2,FS1) $02:FS2 switch become off and the value of servo output pin is as below. (10uA-5uA)*50k*(feedback Resistor/50k) $03:If FS1 switch is 1, the current supply is cut off and the discharge is performed. ...
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... KB9223 / KB9223-L 3.2.2 Tracking Control($1X) This command is used for tracking loop gain control, break circuit and anti-shock on/off control TG2 and TG1 are internal switch for tracking gain set. 3.2.3 Tracking mode($2X) This command is used for tracking and sled servo on/off and jump for searching track. ...
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... KB9223 / KB9223-L Table 6. Auto sequence command Hexa Cancel Auto focus 1 Track jump 10 Track jump 2N track jump M track move 3.2.6 RAM Set($5X~$7X) The value of RAM set is somewhat different to the actual count and the initial value is like below Table 7. RAM set table Item Blind ...
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... KB9223 / KB9223-L 4.2 Tracking gain ($820~$83F) Item Hexa Tracking gain $820~$83F 4.3 Tracking balance & gain window level setting Item Hexa window level setting $84X •The tracking balance and gain window level is set by D2,D3 data and the value has two kinds of window levels set 4 ...
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... KB9223 / KB9223-L 4.5.1 Time setting for Interruption countermeasure circuit on/off Countermeasure circuit on for all mirror signal 0 1 Countermeasure circuit 20KHz mirror signal 1 0 Countermeasure circuit off 1 1 Countermeasure circuit 10KHz mirror signal 4.6 Focus servo offset reset command and set mode command (86X) This command is used for set and release before focus servo loop offset adjustment and mode change ...
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... KB9223 / KB9223-L 5.The Example of Adjustment Free Algorithm 5.1 Focus Error Bias & Servo Offset Cancel Adjustment 5bit Counter 17mV/Bit Tuning range : + 260mV 4bit Counter 40mV/Bit tuning range : + 280mV Figure 22. Focus error bias & servo offset cancel adjustment flow chart RF AMP & SERVO SIGNAL PROCESSOR ...
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... KB9223 / KB9223-L 5.2 Tracking Balance Adjustment YES Figure 23. Tracking balance adjustment flow chart 5.3 Tracking Gain Adjustment Gain adjustment range RF AMP & SERVO SIGNAL PROCESSOR Balance adjustment Range window $844 setting + 20mv, + 15mv setting ISTAT Check Micom Balance L--> H 5Bit adjustment Command Up NO ...
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... KB9223 / KB9223-L APPLICATION CIRCUIT 152p 103p 4.7uF 103p 510K VCC(POST) 27K from DAC CH2 5.6K 152p CH1 out CH2 out 5.6K 152p from DAC CH1 27K 4.7uF GND (POST) from MICOM 180K from DSP from DSP(SMDP) from DSP(SMON) from DSP(SMSD) 8.2K 1M 0.47uF from DSP(SMEF) RF AMP & ...