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Sony Semiconductor Electronic Components Datasheet

CXA2555Q Datasheet

RF Amplifier for CD Player/CD-ROM

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CXA2555Q
RF Amplifier for CD Player/CD-ROM
For the availability of this product, please contact the sales office.
Description
The CXA2555Q is an IC for RF signal processing
32 pin QFP (Plastic)
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
Center error amplifier
APC (Automatic Power Control) function
APC ON/OFF control
Supports laser coupler
Absolute Maximum Ratings
Supply voltage
VCC
Storage temperature Tstg
Power consumption PD
7
–65 to +150
800
V
°C
mW
Applications
CD players
CD-ROM drives
Functions
RF summing amplifier
RF equalizer
Focus error amplifier
Tracking error amplifier
Center error amplifier
Mirror detection function
APC circuit
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–
E96730B76


Sony Semiconductor Electronic Components Datasheet

CXA2555Q Datasheet

RF Amplifier for CD Player/CD-ROM

No Preview Available !

Block Diagram
CXA2555Q
32 31 30 29 28 27 26 25
LD 1
VCA
BOOST FILTER
CONTROL CONTROL CONTROL
LPF DELAY
MODE
SW
24 MODE 1
PD 2
PD1 3
MIXER LPF
VCA
HPF
VS
BOOST
VCC
VC
44k 39k
18k
VC
44p
10p
HOLD
PEAK
/BOT
80k
80k
80k
80k
22k
VCC
20k
23 MODE 2
22 RFO 1
PD2 4
APC ON
VC 1.3V 51k
21 RFO 2
E5
F6
56k 10k
1.25V
10k
1k
10k
VC
56k 55k
VC
20k
20k 10k
VCA
Open only for
L/L mode
VC
VCC
40k 20k 40k
VS
1.25V
40k
40k 20k VC
87k 27p
1.0V
VC
VCC
20 VCC
19 MIRR
GND 7
GND VC
10k
TE1 8
VC
20k
23k
20k
9 10
VCA
VC
73.34k
11 12
320k
2p
13
16k
16k 174k
164k
27p
14 15
18 CP
17 MIRR T
16
–2–


Part Number CXA2555Q
Description RF Amplifier for CD Player/CD-ROM
Maker Sony Corporation
Total Page 22 Pages
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