Description
The CXA2550M/N is an IC developed for compact
disc players. This IC incorporates an RF amplifier,
focus error amplifier, tracking error amplifier, APC
circuit and RF level control circuit. (The voltage-
converted optical pickup output is supported.)
Features
• Low power consumption (35mW at 3.5V)
• APC circuit
• RF level control circuit
• Both single power supply and dual power supply
operations possible.
Structure
Bipolar silicon monolithic IC
Applications
Compact disc players
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
V
CC
12
V
• Operating temperature Topr
–20 to +75
°C
• Storage temperature
Tstg
–65 to +150
°C
• Allowable power dissipation
P
D
(SOP)
620
mW
(SSOP) 370
mW
Operating Conditions
Supply voltage
V
CC
– V
EE
3.0 to 4.0
V
CXA2550M/N
E97514-PS
RF Amplifier for CD Players
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.
CXA2550M
20 pin SOP (Plastic)
CXA2550N
20 pin SSOP (Plastic)
10
15
17
20
VC
VC
10k
8k
6p
VC
VC
10k
8k
6p
4
5
2k
2k
VC
13.4k
V
CC
50µ
A
10k
56k
10k
V
EE
10k
55k
10k
56k
1k
V
CC
V
EE
APC LD
AMP
APC PD AMP
VREF 1.25V
V
CC
19
18
15k
VC
54k
V
EE
6k
16
VC
2k
2k
VC
13k
12p
V
EE
VC
25k
260k
260k
26k
13k
12p
VC
VC
6
7
9
32k
32k
24p
174k
13
14
24p
87k
154k
FOCUS
ERROR
AMP
30k
30k
96k
11
12
TRACKING
ERROR
AMP
15k
49
VC
V
CC
30k
30k
V
EE
2
3
1
AGCVTH
LD
PD
PD1
PD2
V
EE
F
E
EI
VC
V
CC
LD_ON
AGCCONT
(50%/30%/OFF)
RFTC
RF I
RF O
RFM
FE
FE_BIAS
TE
8
95k
VC
VC
670mV
Block Diagram and Pin Configuration (Top View)
55
Summary of Contents for PV420S
Page 1: ...SERVICE MANUAL PV420S WWW BBK RU ...
Page 72: ... 69 CXD3068Q Block Diagram ...
Page 73: ... 70 CXD3068Q Pin Configuration ...
Page 122: ... 119 CXD3068Q Timing Chart 1 3 ...
Page 123: ... 120 CXD3068Q Timing Chart 1 4 ...
Page 124: ... 121 CXD3068Q Timing Chart 1 5 ...
Page 129: ... 126 CXD3068Q Timing Chart 2 1 ...
Page 130: ... 127 CXD3068Q Block Diagram 2 2 ...
Page 131: ... 128 CXD3068Q Timing Chart 2 3 ...
Page 134: ... 131 CXD3068Q Timing Chart 2 6 ...
Page 138: ... 135 CXD3068Q VCO C Mode Fig 3 3 Access Flow Chart Using VCO Control ...
Page 140: ... 137 CXD3068Q Block Diagram 4 1 ...
Page 143: ... 140 CXD3068Q Timing Chart 4 4 ...
Page 147: ... 144 CXD3068Q Fig 4 6 a Auto Focus Flow Chart Fig 4 6 b Auto Focus Timing Chart ...
Page 148: ... 145 CXD3068Q Fig 4 7 a 1 Track Jump Flow Chart Fig 4 7 b 1 Track Jump Timing Chart ...
Page 149: ... 146 CXD3068Q Fig 4 8 a 10 Track Jump Flow Chart Fig 4 8 b 10 Track Jump Timing Chart ...
Page 150: ... 147 CXD3068Q Fig 4 9 a 2N Track Jump Flow Chart Fig 4 9 b 2N Track Jump Timing Chart ...
Page 151: ... 148 CXD3068Q Fig 4 10 a Fine Search Flow Chart Fig 4 10 b Fine Search Timing Chart ...
Page 152: ... 149 CXD3068Q Fig 4 11 a M Track Move Flow Chart Fig 4 11 b M Track Move Timing Chart ...
Page 157: ... 154 CXD3068Q Fig 4 15 CD TEXT Data Timing Chart ...
Page 162: ... 159 CXD3068Q Fig 5 3a Fig 5 3b ...
Page 196: ... 193 CXD3068Q Description of Data Readout ...
Page 200: ... 197 CXD3068Q ...
Page 201: ... 198 CXD3068Q ...
Page 202: ... 199 CXD3068Q ...
Page 207: ... 204 CXD3068Q Package Outline Unit mm ...
Page 208: ...This data sheet has been made from recycled paper to help protect the environment 205 ...