CXA2556 Sony Corporation, CXA2556 Datasheet
CXA2556
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CXA2556 Summary of contents
Page 1
... RF Amplifier for CD Player/CD-ROM For the availability of this product, please contact the sales office. Description The CXA2556Q for RF signal processing of CD player and CD-ROM. Features • Wide-band RF AC amplifier (RF AC signal fc ≥ 20MHz) • 4-mode RF equalizer (active filter type) • RF equalizer boost amount and cut-off frequency adjustable • ...
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... BOOST FILTER CONTROL MODE SW VCA Vcc 20k 80k 80k 80k 22k 80k 1.3V 51k 40k VS 40k VC 87k 27p 174k 27p CXA2556Q 24 MODE 1 23 MODE 2 22 RFO 1 21 RFO MIRR MIRR T ...
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... APC amplifier input. Input of RF summing amplifier and focus error amplifier. Ground. 10 Tracking error amplifier input for Pins 9 and 10; tracking error amplifier output for Pin 11; tracking error amplifier low- 11 frequency gain setting for Pin 12; tracking error amplifier output for Pin 13. 12 CXA2556Q ...
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... Description Not connected. 14 Focus bias adjustment for Pin 14; focus error amplifier output for Pin 15. 15 (Vcc + GND)/2 DC voltage output. Peak hold time constant adjustment. Connects a mirror hold capacitor. Non-inverted input of mirror comparator. Mirror comparator output. CXA2556Q ...
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... Mode 1 1 GND 1.5N GND 2. varied according to the external resistor connected to Pin 26. Switching pin for APC amplifier ON/OFF. OFF when connected to Vcc; ON when connected to GND. Input to set the RF equalizer LPF cut-off frequency. CXA2556Q Mode 2 GND GND ...
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... Description Sets the high-frequency boost amount of RF equalizer. Sets the low-frequency gain of RF amplifier and RF equalizer. RF equalizer input. RF summing amplifier output inversion. 30 Mirror circuit input. The RF summing amplifier output is input. CXA2556Q ...
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... Pin Symbol I/O No. 32 RFO O Equivalent circuit 15k 147 32 15k – 7 – CXA2556Q Description RF signal output. Eye pattern check point. ...
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... RF – 8 – CXA2556Q amplifier FE ...
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... TE – 9 – CXA2556Q ...
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... Equalizer – 10 – CXA2556Q MIRR ...
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... APC VC – 11 – CXA2556Q ...
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... V CC S13 5. S12 24 MODE 1 S11 23 MODE 2 1µ 10k RFO 1 22 1µ 10k RFO MIRR 0.033µ MIRR 33µ 10k 10k 33µ CXA2556Q ...
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... VC 120k 47k 10k 3p – 13 – 3.9k 6. MODE 1 23 MODE 2 1000p RFO 1 22 4700p RFO 33µ 0.1µ 19 MIRR 0.1µ MIRR CXA2556Q Mode 1 IN Mode Out VC Mirror Out 10k ...
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... The transmittance for each filter is as follows HPF: ( 3.22597S + 2.94933) 2 LPF1: (2.94933 ) / (S + 3.22597S + 2.94933) 2 LPF2: (3.32507 ) / (S + 2.75939S + 3.32507) 2 LPF3: (4.20534 ) / (S + 1.82061S + 4.20534) LPF4: (1.68536 ) / (S + 1.68536) MIXER LPF2 LPF3 – 14 – CXA2556Q LPF4 VCA EQ OUT ...
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... A 10k 3 I-V 40k B 4 I-V 40k C 5 I-V 40k I-V Summing Amp (RFC voltage = 1/2 VC) 27p 174k 32k A 3 I-V 32k B 4 I-V 32k C 5 I-V 32k D 6 I-V 27p 164k 47k – 15 – 47k RFO 28 32 VCA 15 FE Focus Error Amp 87k Vc CXA2556Q ...
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... Pin 13. 62k 100k I-V I-V 112k The low frequency component of the TE output voltage is as follows: 112k 320k – 44k 73.4k = 11.1 (F – 73.4k 9 VCA 44k F 10 TE1 47k (TE C voltage = 1/2 VC) – 16 – 14p 2p 320k CXA2556Q ...
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... The mirror hold time constant must be sufficiently large in comparison with the traverse signal. Vc 80k 80k H Peak & Bottom Hold I 80k Mirr Mode 80k Dif Amp L/L Vc 1.3V 17 MIRR T – 17 – Mirr Hold Amp Mirr 20k Comparator 19 MIRR CXA2556Q Vc 0.33µ ...
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... APC connecting APC_ON pin to GND OFF by connecting the pin to Vcc 10k Buffer 56k 10k 1k 1 55k 56k 10k 1.25V – 18 – 100µ 10µ 100 500 1µ CXA2556Q ...
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... To ensure stable operation recommended to select Rfc value of 6.2kΩ and above, and Rbst of 10kΩ and below in all cases. L/H H/H H – 19 – Boost gain characteristics 8 Rfc =6. – Rbst [k ] VCA characteristics 0.8 1.0 1.2 1.4 1 [V] CXA2556Q 15 20 1.8 ...
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... FE frequency response (Pin 15) Frequency response Frequency [kHz 0 – 20 – VCA characteristics 0.8 1.0 1.2 1.4 1.6 1 [V] VCA characteristics 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2 [V] CXA2556Q ...
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... Maximum operating frequency vs. MIRR T pin voltage 600 550 500 450 400 350 300 250 200 150 100 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 MIRR T [V] APC Characteristics Graph (Pin 1) LD voltage vs. PD voltage 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 80 100 120 140 PD [mV] – 21 – Vin = –0.4V , 800mVp-p DC H/L, L/H, or H/H Mode 160 180 200 CXA2556Q ...
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... SONY CODE QFP-32P-L01 EIAJ CODE JEDEC CODE 32PIN QFP (PLASTIC 0.15 0.3 – 0.1 ± 0.12 M PACKAGE MATERIAL LEAD TREATMENT QFP032-P-0707-A LEAD MATERIAL PACKAGE WEIGHT – 22 – CXA2556Q 0.1 + 0.35 1.5 – 0.15 + 0.2 0.1 – 0.1 + 0.1 0.127 – 0.05 0° to 10° EPOXY RESIN SOLDER PLATING 42 ALLOY 0.2g ...