Sony CXA2515AN, CXA2515AM Datasheet
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CXA2515AM/AN
E96317D8Y
RF Amplifier for CD Player and CD-ROM
Description
The CXA2515AM/AN is an IC for RF signal
processing of CD player and CD-ROM.
Features
• Wide-band RF amplifier. (RF signal fc ≥ 12MHz)
• RF equalizer (T type)
• EFM time constant can be adjusted
(with switching function)
• APC (Automatic Power Control) function
• Power saving function
• Supports laser coupler
Functions
• RF summing amplifier
• RF equalizer
• Focus error amplifier
• Tracking error amplifier
• APC circuit
Absolute Maximum Ratings
• Supply voltage VCC 7V
•Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD 500 mW
Operating Conditions
• Supply voltage VCC – GND+3.0 to +5.5 V
• Operating temperature Topr –20 to +75 °C
Applications
• CD players
• CD-ROM drives
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.
CXA2515AM
20 pin SOP (Plastic)
CXA2515AN
20 pin SSOP (Plastic)
For the availability of this product, please contact the sales office.
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CXA2515AM/AN
Block Diagram
2
3
4
5
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
BGR
VC
BUFFER
40k
40k
V
CC
25
1k
10k
V
CC
56k
10k
55k 56k10k
APC
Standby
20k
10k
10k
32k
32k
174k
348k
348k
2k
VC
V
CC
RF
Summing
Amp
Focus
Error Amp
RF Drive
Amp
VC
11p
5p
320k
VC
VC
73.4k
Tracking
Error Amp
Tracking
Drive Amp
LD
PD
NC
PD1
PD2
VC
GND
E
F
TE1
APC_ON
MODE
V
CC
RF_M
BPF_SW
LPF_SW
RFO_1
RFO_2
FE
TE
1.25V
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CXA2515AM/AN
Pin Description
Pin
No.
Symbol I/O Equivalent circuit Description
1
LD
O
APC amplifier output.
1k
1
10k
2
PD
I
APC amplifier input.
7
GND
Ground.
3
NC
No connection.
8k
55k
10k
2
4
5
PD1
PD2
I
I
Input of RF summing
amplifier and focus error
amplifier.
20k
10k
10k
4
5
124
124
32k
32k
174k
348k
348k
VC VC
6
VC
O
(VCC + GND) / 2 DC voltage
output.
120
120
25
6
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CXA2515AM/AN
8
9
10
11
E
F
TE1
TE
I
I
O
O
Tracking error amplifier input
for Pins 8 and 9;
tracking error amplifier output
for Pin 10;
tracking error drive output for
Pin 11.
8
9
11
124 124
320k
73.4k
124
124
10
12
FE
O
Focus error amplifier output
for Pin 12.
12
348k
348k 124
13
RFO_2
O
Buffer switch output which
sets the RF signal time
constant.
OFF when Pin 19 is
connected to VCC, ON when
it is connected to GND.
124
13
14
14
17
RFO_1
RF_M
O
I
Non-inversion input of RF
drive amplifier for Pin 17;
RF signal output for Pin 14;
resistance value connected
between Pins 14 and 17
which determines the low
frequency gain of RF drive
amplifier.
14
17
124
2k
1k
Pin
No.
Symbol I/O Equivalent circuit Description
15
LPF_SW
O
Transistor switch output
which sets the LPF cut-off
frequency of RF amplifier.
OFF when Pin 19 is
connected to VCC, ON when
it is connected to GND.
15
17
124
124
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