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Sony Semiconductor Electronic Components Datasheet

CXA2556Q Datasheet

RF Amplifier for CD Player/CD-ROM

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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
32 pin QFP (Plastic)
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
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
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–
E96731B76


Sony Semiconductor Electronic Components Datasheet

CXA2556Q Datasheet

RF Amplifier for CD Player/CD-ROM

No Preview Available !

Block Diagram
CXA2556Q
32 31 30 29 28 27 26 25
LD 1
PD 2
A3
B4
C5
D6
GND 7
GND
NC 8
APC ON
VCA
BOOST FILTER
CONTROL CONTROL CONTROL
LPF DELAY
MODE
SW
MIXER LPF
VCA
HPF
VS
BOOST
VCC
VC
44k 39k
18k
VC
44p
10p
HOLD
PEAK
/BOT
80k
80k
80k
80k
22k
Vcc
20k
VC 1.3V 51k
24 MODE 1
23 MODE 2
22 RFO 1
21 RFO 2
56k 10k 10k
1.25V
1k 56k
10k
VC
VC
40k
40k
40k 10k
40k
55k
VCA
VCC
Open only for
L/L mode VC
40k 20k
1.25V
40k
20k
32k
32k
VCC
40k
VS
40k
VC
87k 27p
VC
VCC
20 VCC
19 MIRR
18 CP
32k
VC 174k
VCA
73.34k
32k
17 MIRR T
320k
164k
27p
2p
9 10 11 12 13 14 15 16
–2–


Part Number CXA2556Q
Description RF Amplifier for CD Player/CD-ROM
Maker Sony Corporation
Total Page 22 Pages
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