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CXA2556Q

Sony Corporation
Part Number CXA2556Q
Manufacturer Sony Corporation
Description RF Amplifier for CD Player/CD-ROM
Published Mar 27, 2005
Detailed Description CXA2556Q RF Amplifier for CD Player/CD-ROM For the availability of this product, please contact the sales office. Descri...
Datasheet PDF File CXA2556Q PDF File

CXA2556Q
CXA2556Q

Overview
CXA2556Q RF Amplifier for CD Player/CD-ROM For the availability of this product, please contact the sales office.
Description The CXA2556Q is an IC 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 • EFM time constant adjustable (switching function provided) • Peak hold time constant of mirror circuit adjustable • Tracking error amplifier cut-off frequency adjustable • Tracking error amplifier voltage gain adjustable • APC (Automatic Power Control) function • APC ON/OFF control Absolute Maximum Ratings • Supply voltage VCC • Storage temperature Tstg • Power consumption PD 32 pin QFP (Plastic) Applications • CD players • CD-ROM drives Functions • RF summing amplifier • RF equalizer • Focus error amplifier • Tracking error amplifier • Mirror detection function • APC circuit 7 –65 to +150 800 V °C mW Operating Conditions • Supply voltage VCC – GND 3.
0 to 5.
5 V • Operating temperature Topr –20 to +75 °C Sony reserves the right to change products and specifications without prior notice.
This information does not convey any license by any implication or otherwise under any patents or other right.
Application circuits shown, if any, are typical examples illustrating the operation of the devices.
Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1– E96731B76 CXA2556Q Block Diagram SUM OUT APC ON 25 BST C EQ IN 32 31 RFI RF C RFO 30 29 28 27 26 VCA BOOST FILTER CONTROL CONTROL CONTROL LD 1 LPF DELAY MIXER PD 2 HPF VS 44k 39k A 3 18k VC B 4 10p 44p HOLD PEAK /BOT 80k 22 RFO 1 80k 80k 1.
3V 22k 51k VCC Open only for L/L mode VC 40k 55k 1.
25V 20k 40k VCA 40k GND 7 40k 10k 32k 18 CP 32k GND NC 8 VCA 73.
34k 320k 2p 9 10 11 12 13 14 15 16 VC 32k 164k 27p 174k 17 MIRR T 32k 40k VC 87k 27p 19 MIRR 20k VCC 40k VS VC VCC 20 VCC 21 RFO 2 BOOST VC 80k VCC LPF...


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