cxa1782cq Sony Electronics, cxa1782cq Datasheet
cxa1782cq
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cxa1782cq Summary of contents
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... RF Signal Processing Servo Amplifier for CD players For the availability of this product, please contact the sales office. Description The CXA1782CQ/ bipolar IC with built-in RF signal processing and various servo ICs player servo can be configured by using this IC, DSP and driver. Features • Low operating voltage (V – ...
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... FS1 to 4 TG1 to 2 TM1 to 7 PS1 to 4 BAL1 to 3 FZC COMP •TRACKING HPF COMP LPF COMP TG1 TZC COMP •FCS PHASE COMPENSATION DFCT TM1 FS1 FS2 FS4 – 2 – CXA1782CQ/ SENS C.OUT TTL 22 XRST DFCT TTL 21 DATA XLT ...
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... CXA1782CQ/CR Description Focus error amplifier output. Connected internally to the FZC comparator input. Focus error input. Capacitor connection pin for defect time constant. Ground this pin through a capacitor when decreasing the focus servo high-frequency gain ...
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... CXA1782CQ/CR Description External time constant setting pin for generating focus servo waveform. External time constant setting pin for switching tracking high-frequency gain. External time constant setting pin for switching tracking high-frequency gain ...
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... CPU. 20k 147 Focus OK comparator output. 40k 100k Input for the DEFECT bottom hold output with capacitance coupled. 147 27 DEFECT bottom hold output. 147 26 Connection pin for DEFECT bottom hold capacitor. – 5 – CXA1782CQ/CR Description ...
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... The RF amplifier gain is determined by the resistance connected between this pin and RFO pin. 10k 1k APC amplifier output. 17µ 147 APC amplifier input. 10k RF I-V amplifier inverted input. 147 Connect these pins to the photo diode and pins. 11.6k 100µ – 6 – CXA1782CQ/CR Description ...
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... I-V amplifier E gain adjustment. 260k (When not using automatic balance 20.3k adjustment) 147 12k 23k 11k 4.8k Tracking error amplifier output. 150k E-F signal is output. 10k 150k Comparator input for balance 147 adjustment. (Input from TEO through LPF) – 7 – CXA1782CQ/CR Description ...
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... O 48 Equivalent circuit Tracking error input. 100k 147 147 Capacitor connection pin for defect time constant. 1k 100k Window comparator input for ATSC detection. 100k 1k 10k Tracking zero-cross comparator input. 75k 120 50 (V 120 VC – 8 – CXA1782CQ/CR Description + V )/2 DC voltage output ...
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... RF amplifier FE – 9 – CXA1782CQ/CR amplifier TE ...
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... TE APC servo FCS – 10 – CXA1782CQ/CR servo TRK ...
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... Servo TRK Sled – 11 – CXA1782CQ/CR MIRR DEFECT ...
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... Vcc EE V2 22k S12 100k S11 200k – 12 – CXA1782CQ/CR 3300p Vcc SENS 10k 23 Vcc C. OUT 10k 22 XRST XRST 21 DATA DATA XLT 20 XLT 19 CLK CLK Vcc A 18 Vcc ISET ...
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... FE_BIAS TEO LPFI TEI ATSC TZC TDFCT 22k 100k 0.033µ Vcc – 13 – CXA1782CQ/ DSP SENS 23 DSP C. OUT MICRO XRST 22 COMPUTER DATA 21 DSP DSP XLT 20 CLK 19 DSP Vcc 18 Vcc 120k ISET 17 V ...
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... PD1 IV AMP VC 58k VC 10k VB PD2 IV AMP VC = 2.2 RFO 25p 174k 32k FE AMP 32k 25p 87k 164k VC FE_BIAS 47k = 5.4 (V – (iPD2 – iPD1) FEO A B – 14 – CXA1782CQ/CR equivalent 22k RF_M RF_O 31 RF SUMMING AMP ( 127.6k (iPD1 + iPD2 FEO 315k . ...
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... TOG3), and it is output at Pin 42. These balance and gain adjustment switches are controlled through software commands 260k 12p TE AMP 30k 96k VF 30k 260k 12p 403k – 15 – CXA1782CQ/CR 42 TEO VC ...
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... When the anti-shock function is not used, Pin 45 (ATSC) should be fixed to VC. TZC DFCT FZC BUFFER AMP LPF LPFI HPF – + Balance – 16 – CXA1782CQ/CR µ-CON SENS Balance OK 24 Gain OK C. OUT Frequency 23 check Gain Resistance switching ...
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... When the laser diode is driven with constant current, the optical output possesses large negative temperature characteristics. Therefore, the current must be controlled with the monitor photo diode to ensure the output remains constant. Vcc 10µ GND 10k 55k 10k – 17 – CXA1782CQ/CR VC Vcc 56k 56k 10k VREF 1.25V EE ...
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... Pin 11. FE FZC FS4 68k Focus 100k phase Compensation 50k 40k 50k FS2 FLB FSET SRCH 0.1µ 510k 0.01µ 4.7µ and VC (Pin 48 – 18 – CXA1782CQ/CR FOCUS COIL FE_O 6 100k FE_M 7 11µ 22µ ISET 120k 17 FS1 resistance; however, is – VC) 15%. CC ...
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... ATSC 1k TM4 100k 11µA TM3 11µA 20k 10k 90k Tracking Phase Compensation TM7 FSET 11 510k 0.01µ feedback resistance value feedback resistance – 19 – CXA1782CQ/CR SLED MOTOR SL_O M 16 SL_M 15 8.2k SL_P TM2 14 3.3µ 82k 22µ 100k TA_M 15k 12 TRACKING COIL TA_O 13 ...
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... CC1 e DEFECT 54k 1 VG 92k 15k 0.625V FOCUS OK COMPARATOR – V –0.37V. RFI RFO 0.033µ CC1 CC2 DEFECT COMPARATOR DEFECT BOTTOM HOLD 28 CB 0.01µ – 20 – CXA1782CQ/ 20k 25 FOK e SENS 24 DEFECT SW d BOTTOM HOLD (2) ; dotted Line: CC2 H L ...
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... In the CXA1782, this mirror output is used only during braking operations, and no external output pin is attached. Accordingly, when connecting DSP such as the CXD2500 with MIRR input pin, input the C. OUT output to the MIRR input of the DSP. MIRROR HOLD AMP H PEAK& BOTTOM 1 J HOLD I MIRROR COMPARATOR – 21 – CXA1782CQ/CR 0.033µ LOGIC 20k ...
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... Fig. 2. Constructing the search voltage by alternating between $02 and $03. (Voltage at Pin 6) $04 When the fact that the RF signal is missing is detected and the scratches on the disc are detected with DEFECT = 0, DFCT (FS3) is turned ON FS4 DEFECT FS2 50k = 0.55V. 50k – 22 – CXA1782CQ/CR D0 FS1 Equation ...
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... Drive voltage Focus error SENS pin (FZC) Focus Fig. 3. S-curve $03 $08 The instant the signal is brought into focus. Fig. 4. Focus ON timing chart – 23 – CXA1782CQ/CR The broken lines in the figure indicate the voltage assuming the signal is not in focus. ...
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... Transfer $ YES FZC YES TG1, TG2 Break Sled kick circuit height ON/OFF ON/OFF – 24 – CXA1782CQ/ Latch (B) Sled kick height Relative D1 D0 value (PS1) (PS0) ± ± ± ...
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... CXA1782 From outer to inner track Fig. 7. Internal waveform Tracking control 00: OFF 01: Servo ON 10: F-JUMP 11: R-JUMP TM1, TM3, TM4 – 25 – CXA1782CQ/CR D2 TM7 Low: open BRK High: make (“MIRR”) (“TZC”) Braking is applied from here. D0 Sled control 00: OFF 01: Servo ON ...
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... In a fashion similar to the method used with the balance adjustment, set the data by sending a latch pulse with specifying the switch conditions D0 to D2. TOG1 to TOG3 Switch control START C. OUT Is the frequency high enough ? NO YES SENS output Balance OK ? Adjustment Completed Balance adjustment START SENS GAIN YES Adjustment Completed Gain adjustment – 26 – CXA1782CQ/CR ...
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... Brake Sled OFF = 0 Kick + 2 1 Sled Mode 2 SLED MODE OFF FWD MOVE REV MOVE – 27 – CXA1782CQ/ SENS output D1 D0 FS1 Search FZC Down = 0 Sled DEFECT Kick + 1 2 TZC Gain/Bal ...
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... CXA1782CQ/CR DEFECT E: enable D: disable ...
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... DATA HEXADECIMAL $ $ $ $ $38 min. (TOG SW max. (TBAL SW – 29 – CXA1782CQ/CR ...
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... If the resistance value is out of this range, 40k near V CC 100k V EE Measurement pin Conditions C = 0.1µF FLB 0.1µF FGD 0.1µF TGU – 30 – CXA1782CQ/CR Large Large V CC 20k FOK Typ. Unit 21 deg 13 dB –125 deg 26 ...
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... NOTE: Dimension “ ” does not include mold protrusion. DETAIL A PACKAGE STRUCTURE PACKAGE MATERIAL EPOXY / PHENOL RESIN LEAD TREATMENT SOLDER PLATING LQFP-48P-L01 QFP048-P-0707-A LEAD MATERIAL 42 ALLOY 0.2g PACKAGE WEIGHT – 31 – CXA1782CQ/CR ...