Sony CXA2542AQ Datasheet

Description
The CXA2542AQ is a bipolar IC developed for CD
player RF signal processing and servo control.
Features
Automatic focus bias adjustment circuit
Automatic tracking balance and gain adjustment
circuits
Interruption countermeasure circuit
Anti-shock circuit
Defect detection and prevention circuits
RF I-V amplifier, RF amplifier
APC circuit
Focus and tracking error amplifier
Focus, tracking and sled servo control circuits
Focus OK circuit
Single power supply and dual power supplies
Applications
CD players
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage VCC 12 V
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –65 to +150 °C
Allowable power dissipation
PD 1400 mW
Recommended Operating Conditions
Operating supply voltage VCC – VEE 3.0 to 3.6 V
4.5 to 5.5 V
– 1 –
CXA2542AQ
E97920-PS
RF Signal Processing Servo Amplifier for CD Player
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.
48 pin QFP (Plastic)
– 2 –
CXA2542AQ
Block Diagram
PS1-4TM1-7TG1-2FS1-4IFB1-6 BAL1-4 TOG1-4
DFCTO
FE AMP
FO. BIAS WINDOW COMP.
TGFL
TRK. GAIN WINDOW COMP.
F IV AMP
E IV AMP
VEE
VCC
TG1
TM1
DFCT
TRACKING PHASE COMPENSATION
IIL DATA REGISTER INPUT SHIFT REGISTER ADDRESS DECODER SENS SELECTOR OUTPUT DECODER
VEE
VEE
E-F BALANCE WINDOW COMP.
E
F
FEI
FDFCT
FLB
FE_O
FE_M
TA_M
TG2
TGU
SRCH
FGD
FSET
LD
RFTC
RF_M
RF_O
RF_I
CB
CC1
FOK
CC2
CP
PD1
PD
SL_P
SL_O
ISET
V
CC
CLK
DATA
XRST
SL_M
C. OUT
XLT
SENS1
PD2 IV AMP
PD1 IV AMP
VCC
VEE
APC
VEE
LASER POWER CONTROL
RF SUMMING AMP
VCC
VEE
LEVEL S
FZC
TZC
ATSC
BALL
BALH
TGL
TGH
FOL
FOH
LDON
LPCL
LPC
TGFL
VEE
VCC
MIRR
DFCT2
VEE
VCC
ISET
VCC
VEE
VCC
TM5
TM6
VEE
VCC
TM3
TM4
FSET
TG2
FOCUS PHASE COMPENSATION
TM7
VEE
VCC
FS1
FS2
DFCT
FS4
IIL
TTL
42
44
45
46
48
2
3
4
6
7
8
9
10
11
12
1
13
27
28
29
30
39
38
36
35
34
31
32
33
14
15
16
17
18
19
20
21
22
23
24
25
26
TM2
VCC
FZC COMP.
TZC COMP.
ATSC WINDOW COMP.
MIRR
FOK
BAL1
BAL2
BAL3
BAL4
IFB1
VEE
VCC
IFB6
IFB5
IFB4
IFB3
IFB2
TOG1
TOG2
TOG3
TOG4
37
5
TA_O
SENS2
ATSC
LPFI
TEO
VC
TDFCT
TZC
FEO
FZC
PD2
47
40
41
43
IIL
TTL
TTL
IIL
VCC
VEE
VCC
VEE
VCC
VEE
CC1
XDFCT1
INT
– 3 –
CXA2542AQ
Pin Description
Pin No.
Symbol
I/O
Equivalent circuit
Description
1
FEI
I
2
FDFCT
I
Focus error input.
Connects the capacitor for defect time constant.
3
FGD
I
Ground this pin through a capacitor for cutting the focus servo high­frequency gain.
4
FLB
I
External time constant setting pin for boosting the focus servo low­frequency.
5
FE_O
O
12
TA_O
O
15
SL_O
O
Focus drive output.
Tracking drive output.
Sled drive output.
6
FE_M
I
Focus amplifier inverted input.
147
50k
90k
6
250µ
5 12 15
147
100k
147
2
1
147
130k
68k
40k
470k
330k
3
4
7
SRCH
I
External time constant setting pin for generating the focus search waveform.
147
50k
11µ
20k
7
– 4 –
CXA2542AQ
8
TGU
I
External time constant setting pin for switching the tracking high-frequency gain.
9
TG2
I
External time constant setting pin for switching the tracking high-frequency gain.
10
FSET
I
Peak frequency setting pin for focus and tracking phase compensation amplifier.
11
TA_M
I
Tracking amplifier inverted input.
13
SL_P
I
14
SL_M
I
Sled amplifier non-inverted input.
Sled amplifier inverted input.
147
13
147
100k
11µ
11
147k
15k 15k
10
20k
110k
82k
147
8
423k
470k
9
16
ISET
I
Connect the external resistor to set the current which determines the Focus search, Track jump, and Sled kick levels.
147
50µ
16
147
22µ
14
Pin No.
Symbol
I/O
Equivalent circuit
Description
– 5 –
CXA2542AQ
18
CLK
I
20
DATA
I
17 VCC
I
Positive power supply.
Serial data input from CPU. (no pull-up resistance)
Serial data transfer clock input from CPU. (no pull-up resistance)
19
XLT
I
21
XRST
I
Latch input from CPU. (no pull-up resistance)
Reset input; resets at Low. (no pull-up resistance)
147
20µ
1k
18 20
147
20µ
4k
2.5p
19 21
22
C. OUT
O
23
SENS1
O
24 SENS2
O
Track number count signal output.
Outputs FZC, DFCT1, TZC, BALH, TGH, FOH, ATSC, and others according to the command from CPU.
Outputs DFCT2, MIRR, BALL, TGL, FOL, and others according to the command from the CPU.
100k
147
20k
22 23 24
VCC
17
25
FOK
O
Focus OK comparator output.
147
20k
100k
40k
25
Pin No.
Symbol
I/O
Equivalent circuit
Description
– 6 –
CXA2542AQ
26
CC2
I
28
CB
I
Input for the RF summing amplifier output with capacitance coupled.
Connects the defect bottom hold capacitor.
147
43k
39k
26
75k
147
28
7.6k
240k
29
CP
I
Connects the MIRR hold capacitor. MIRR comparator non-inverted input.
30
RF_I
I
31
RF_O O
32
RF_M
I
27
CC1
O
1.5k
100k
29
147
147
147
10k10k
30
31
32
147
27
Input for the RF summing amplifier output with capacitance coupled.
RF summing amplifier output. Eye­pattern check point.
RF summing amplifier inverted input. The RF amplifier gain is determined by the resistance connected between this pin and RFO pin.
RF summing amplifier output. Used for the defect capacitance coupling.
33
RFTC
I
External time constant setting pin during RF level control.
147
50µ
10µ
50µ
33
Pin No.
Symbol
I/O
Equivalent circuit
Description
– 7 –
CXA2542AQ
34
LD
O
APC amplifier output.
35
PD
I
APC amplifier input.
36 37
PD1 PD2
I I
RF I-V amplifier inverted input. Connect these pins to the photo diode A + C and B + D pins.
147
10k
8.65k
100µ
2k
8k
36 37
0.2p
147
20µ
55k
10k
35
1k
10k
34
38 39
F E
I I
F I-V and E I-V amplifier inverted input. Connect these pins to photo diodes F and E pins.
147
260k
12p
500
10µ
38 39
VEE
40
40
VEE
Negative power supply.
Pin No.
Symbol
I/O
Equivalent circuit
Description
– 8 –
CXA2542AQ
43
ATSC
I
44
TZC
I
Window comparator input for ATSC detection.
Tracking zero-cross comparator input.
41
TEO
O
Tracking error amplifier output. E-F signal is output.
45
TDFCT
I
Connects the capacitor for defect time constant.
147
75k
10µ
44
147
1k
100k
100k
1k
10µ 10µ
43
42
LPFI
I
Comparator input for balance adjustment. (Input from TEO through LPF)
147
42
147
32k 15k 3k15k
20k
150k
150k
6.6k
147
100k
41
45
Pin No.
Symbol
I/O
Equivalent circuit
Description
– 9 –
CXA2542AQ
46
VC
O
(VCC + VEE)/2 DC voltage output.
VC
50
120
120
46
15k
47
FZC
I
Focus zero-cross comparator input.
147
300k
6k
54k
47
48 FEO
O
Focus error amplifier output. Connected internally to the window comparator input for bias adjustment.
147
25p
174k
10µ
10µ
300µ
48
Pin No.
Symbol
I/O
Equivalent circuit
Description
– 10 –
CXA2542AQ
TEST
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T13
T14
T15
T16
T17
T18
T19
T20
Current consumption 1
Current consumption 2
Center amplifier output offset
Offset
Voltage gain
Max. output amplitude - High
Max. output amplitude - Low
Offset
Voltage gain 1
Voltage gain 2
Voltage gain difference
Max. output voltage – High
Max. output voltage – Low
BIAS0
BIAS1
BIAS2
BIAS3
BIAS4
BIAS5
BIAS6
19 (OFF)
19 (OFF)
19 (OFF)
10, 13
10, 13
10, 13
10
13
13
10
RST
RST
RST
RST
RST
RST
RST
39F
39F
39F
39F
39F
39F
3BF
3BE
3BD
3BB
3B7
3AF
39F
17
40
36 37
36 37
36 37
36
37
37
36
17
40
46
31
31
31
31
48
48
48
48
48
48
48
48
48
48
48
48
1kHz I/O ratio
V2 = 0.2VDC
V2 = 0.2VDC
1FB6: ON
1kHz I/O ratio
1kHz I/O ratio
V2 = 100mVDC
V2 = 100mVDC
IFB1, 2, 3, 4, 5, 6: OFF
IFB1: ON, BIAS0: reference
IFB2: ON, BIAS0: reference Output gain difference with T15
IFB3: ON, BIAS0: reference Output gain difference with V17
IFB4: ON, BIAS0: reference Output gain difference with V18
IFB5: ON, BIAS0: reference Output gain difference with V19
IFB6: ON, BIAS0: reference Output gain difference with V20
12.0
–25.0
–100
–70
16.5
1.2
–120
15.6
15.6
–3
1
560
–29.0
5
5
5
5
5
18.5
–18.5
0
–13
19.5
1.4
–1.3
0
18.6
18.6
0
1.4
–1.3
718
–22.7
6
6
6
6
6
25.0
–12.0
100
70
22.5
–1.0
120
21.6
21.6
3
–1
1042
–16.5
7
7
7
7
7
mA
mA
mV
mV
dB
V
V
mV
dB
dB
dB
V
V
mV
mV
dB
dB
dB
dB
dB
Item
SW conditions (ON switches)
SD
Input pin
Measurement conditions
Min. Typ. Max. Unit
Electrical Characteristics (VCC = 1.5V, VEE = 1.5V, Topr = 25°C)
RF amplifierFE amplifier
Measure­ment pin
– 11 –
CXA2542AQ
FOH threshold value
FOL threshold value
Offset
GAIN UP (F)
GAIN UP (E)
Voltage gain F0
Voltage gain F1
Voltage gain F2
Voltage gain F3
Voltage gain F4
Voltage gain E0
Voltage gain E1
Voltage gain E2
Voltage gain E3
Voltage gain E4
Max. output voltage – High
Max. output voltage – Low
Output voltage 1
Output voltage 2
Output voltage 3
Output voltage 4
LD OFF
T21
T22
T23
T24
T25
T26
T27
T28
T29
T30
T31
T32
T33
T34
T35
T36
T37
T38
T39
T40
T41
T42
14
15
14
14
14
14
14
15
15
15
15
15
1
1
9
38 39
38
39
38
38
38
38
38
39
39
39
39
39
38
39
35
35
35
35
35
39F
39F
34F 308
36F 308
36F 308
34F
34E 30F
34D
34B
347 34F
30F
00
30E
30D
30B
307
34F 308
34F 308
3C4
3C4
3C4
3C4
3C0
48
48
41
41
41
41
41
41
41
41
41
41
41
41
41
41
41
34
34
34
34
34
I
FB6: ON Pin 1 voltage when SENS1 (Pin 23) goes from High to Low
IFB6: ON Pin 1 voltage when SENS2 (Pin 24) goes from High to Low
TOG: OFF, BAL1, 2, 3: ON
V1 = 2 kHz, I/O ratio TOG: OFF, BAL1, 2, 3: ON
V1 = 2 kHz, I/O ratio TOG: OFF, BAL1, 2, 3: ON
V1 = 2kHz, TOG: OFF I/O ratio
V1 = 2kHz, TOG1: ON Reference to F0
V1 = 2kHz, TOG2: ON Reference to F0
V1 = 2kHz, TOG3: ON Reference to F0
V1 = 2kHz, TOG4: ON Reference to F0
V1 = 2kHz, BAL: OFF I/O ratio
V1 = 2kHz, BAL1: ON Reference to E0
V1 = 2kHz, BAL2: ON Reference to E0
V1 = 2kHz, BAL3: ON Reference to E0
V1 = 2kHz, BAL4: ON Reference to E0
V1 = 1VDC, TOG: OFF, BAL1, 2, 3: ON
V1 = 1VDC, TOG: OFF, BAL1, 2, 3: ON
I1 = 364µA
I1 = 439µA
I1 = 515µA
0.8mA sink
I1 = 515µA, LD: OFF
5
–35
–25
7.2
7.2
1.2
–2.3
–3.9
–6.9
–11.1
–1.6
0.16
0.58
1.43
2.96
0.5
–900
–693
163
–200
1.1
20
–20
0
10.2
10.2
4.2
–1.8
–3.4
–6.4
–10.6
1.4
0.46
0.88
1.73
3.26
0.7
–0.8
–704
–293
613
132
1.3
35
–5
25
13.2
13.2
7.2
–1.3
–2.9
–5.9
–10.1
4.4
0.76
1.18
2.03
3.56
–0.5
–500
107
1063
500
mV
mV
mV
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
mV
mV
mV
mV
V
FE amplifierTE amplifierAPC
TEST Item
SW conditions (ON switches)
SD
Input pin
Measure­ment pin
Measurement conditions
Min. Typ. Max. Unit
– 12 –
CXA2542AQ
T43
T44
T45
T46
T47
T48
T49
T50
T51
T52
T53
T54
T55
T56
T57
T58
T59
T60
T61
T62
T63
T64
50% limit
30% limit
–50% limit
–30% limit
DC voltage gain
FCS total gain
Feed through 1
FZC threshold value
Max. output voltage – High
Max. output voltage – Low
Search voltage (–)
Search voltage (+)
DC voltage gain
TRK total gain
Feed through 1
Max. output voltage – High
Max. output voltage – Low
Jump output voltage (–)
Jump output voltage (+)
ATSC threshold value (–)
ATSC threshold value (+)
TZC threshold value
8
8
10, 13
10, 13
1
1
20
1
1
5, 17
5, 17
18
3C7
3C5
3C7
3C5
08
00 08
00
08
08
02
03
25
20 25
20 25
20 25
2C
28
10
10
20
35 30
35 30
35 36 37
35 36 37
1
1
47
1
1
38
38
38
38
43
43
44
34
34
34
34
5
5
47
5
5
5
5
12
12
12
12
12
12
43
43
44
I1 = 273µA Output difference with LPC ON/OFF
I1 = 333µA Output difference with LPC ON/OFF
I1 = 742µA Output difference with LPC ON/OFF
I1 = 667µA Output difference with LPC ON/OFF
T9 + T47
I/O gain difference between SD = 00 and SD = 08
Pin 47 voltage when SENS1 (Pin 23) goes from Low to High
V1 = 200mVDC
V1 = –200mVDC
DC gain between TEO and TA_O
T26 + T55
I/O gain difference between SD = 20 and SD = 25.
V1 = –0.3VDC
V1 = 0.3VDC
Input voltage when TG2
(Pin 9) goes from Vcc/2 to Vcc
Input voltage when TG2 (Pin 9) goes from Vcc/2 to Vcc
Pin 44 voltage when SENS1 (Pin 23) is 0V
725
315
–1421
–1215
17.4
37.5
123
1
–721
399
11.4
16.8
1
–652
437
–25
7
–20
1330
915
–816
–615
20.9
39.5
150
1.3
–1.3
–581
539
14.6
18.8
1.3
–1.3
–512
577
–15
15
0
1935
1515
–211
–15
24.4
41.5
–30
177
–1
–441
679
17.8
20.8
–39
–1
–372
717
–7
25
20
mV
mV
mV
mV
dB
dB
dB
mV
V
V
mV
mV
dB
dB
dB
V
V
mV
mV
mV
mV
mV
RF level controllFocus servoTracking servo
TEST Item
SW conditions (ON switches)
SD
Input pin
Measurement conditions
Min. Typ. Max. Unit
Measure­ment pin
– 13 –
CXA2542AQ
T65
T66
T67
T68
T69
T70
T71
T72
T73
T74
T75
T76
T77
T78
T79
T80
T81
T82
BAL COMP threshold value – High
BAL COMP threshold value – Low
GAIN COMP threshold value – High
GAIN COMP threshold value – Low
FOK threshold value
Voltage gain
Feed through
Max. output voltage – High
Max. output voltage – Low
Kick voltage 1
Kick voltage 2
Max. operating frequency 1
Min. input operating voltage 1
Max. input operating voltage 1
Min. operating frequency 1
Max. operating frequency 1
Min. input operating voltage 1
Max. input operating voltage 1
16
16
14
14
8
6, 7
6
6
6
8
8
8
10, 11, 12, 13
10, 11, 12, 13
10, 11, 12, 13
10, 11, 12, 13
300
300
308 34F
308 34F
25
20 25
25
25
20
20
20
20
20
10
10
10
10
42
42
38
38
30
13
13
13
13
30
30
30
36 37
36 37
36 37
36 37
42
42
41
41
25
15
15
15
15
15
15
24
24
24
23
23
23
23
Pin 42 voltage when SENS1 (Pin 23) goes from High to Low
Pin 42 voltage when SENS2 (Pin 24) goes from High to Low
Pin 41 voltage when SENS1 (Pin 23) goes from High to Low
Pin 41 voltage when SENS2 (Pin 24) goes from Low to High
Pin 30 voltage when Pin 25 is 0V
V1 = 100Hz, I/O ratio
I/O
gain difference between
SD = 20 and SD = 25.
V1 = 400mVDC
V1 = 400mVDC
REV × 1
FWD × 1
Measures at SENS2 pin.
Measures at SENS2 pin.
Measures at SENS2 pin.
Measures at SENS1 pin.
Measures at SENS1 pin.
Measures at SENS1 pin.
Measures at SENS1 pin.
5
–35
168
127
–560
50
1
–750
450
30
1.8
2.5
1.6
20
–20
193
145
–510
1.3
–1.3
–600
600
35
–5
218
163
–450
–34
–1
–450
750
0.3
1
0.5
mV
mV
mV
mV
mV
dB
dB
V
V
mV
mV
kHz
Vp-p
Vp-p
kHz
kHz
Vp-p
Vp-p
Tracking servoFOKSled servoMIRRORDEFECT
TEST Item
SW conditions (ON switches)
SD
Input pin
Measurement conditions
Min. Typ. Max. Unit
Measure­ment pin
– 14 –
CXA2542AQ
GND
R19
10k
C4
0.1µ
S3
S2
R9
47k
C3
1000P
S1
C1 1000P
S19
S16
V2
AC
DC
I2
0.8mA
C5
R13
30k
S8
C7
0.01µ
C9
0.068µ
S7
R25 13k
S6
C11 47µ
R23
60k
R3
10k
V1
AC
DC
GND
C2 33µ
GND
S17GND
S18GND
GND
GND
S20GND
GND
V
EE
GND
R1 390k
S15
R2 390k
S14
GND
GND
GND GND
R11
13k
GND
R12
100k
S5
R15
10k
V
CC
R16
510k
V
CC
C8
0.01µ
R18
13k
GND
R17
100k
GND
R24 5.1k
GND
GND
V
EE
R26 120k
VCC
GND
CLK
C10 33µ
XLT
DATA
XRST
VCC
R20 10k
VCC
R21 10k
VCC
R22 10k
VCC
GND
C6
0.01µ
GNDGND
R14
10k
R10
1M
V
EEVCC
R8
330
V
EEVCC
I1
0µA
GND
F
E
VEETEO
LPFI
ATSC
TZC
TDFCT
VC
SENS1
C. OUT
XRST
DATA
XLT
CLK
Vcc
ISET
SL_O
SL_M
SL_P
SENS2
FZC
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
41
42
45
46
47
40
44
43
FDFCT
FGD
FLB
FE_O
FE_M
SRCH
TGU
TG2
FSET
TA_M
TA_O
FEI
PD1
PD
LD
RF_M
RF_O
RF_I
CP
CB
CC1
FOK
RFTC
CC2
PD2
FEO
2
3
4
5
6
7
8
9
10
11
12
1
25
26
27
28
29
30
36
35
34
31
32
33
48
R5
240k
R6 240k
S11S12
R4
34k
R7
34k
S13
S10
S9
R26 100k
Electrical Characteristics Measurement Circuit
– 15 –
CXA2542AQ
Application Circuit 1 (±2.5V power supply)
PD1
PD
LD
RF_M
RF_O
RF_I
CP
CB
CC1
FOK
RFTC
CC2
Vcc
MICRO COMPUTER DSP
15k
22µ
3.3µ
DRIVER
100k
0.015µ
60k
V
EE
VEE
100k
150k
0.047µ
0.1µ
F
E
V
EE
TEO
LPFI
ATSC
TZC
TDFCT
VC
82k
F
E
8.2k
SENS1
C. OUT
XRST
DATA
XLT
CLK
Vcc
ISET
SL_O
SL_M
SL_P
SENS2
47k
330k
470p
0.022µ
0.022µ
FZC
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
41
42
45
46
47
40
44
43
0.01µ
0.01µ
0.1µ
680k
510k
0.015µ
2200p
0.1µ
0.1µ 100k
4.7µ
DRIVER
0.033µ
Vcc
100k
DRIVER
10k
10k
0.068µ
0.01µ
0.033µ
0.01µ
30k
Vcc
22
100µ
10µH
100
500
V
EE
Vcc
1k
3.3µ
A C
B D
PD
LD
1M
VEE VEE
FDFCT
FGD
FLB
FE_O
FE_M
SRCH
TGU
TG2
FSET
TA_M
TA_O
FEI
PD2
FEO
2
3
4
5
6
7
8
9
10
11
12
1
25
26
27
28
29
30
36
35
34
31
32
33
48
Application Circuit 2 (Single +5V power supply)
Vcc
MICRO COMPUTER DSP
15k
22µ
3.3µ
DRIVER
100k
0.015µ
60k
100k
150k
0.047µ
0.1µ
F
E
V
EE
TEO
LPFI
ATSC
TZC
TDFCT
VC
82k
F
E
8.2k
SENS1
C. OUT
XRST
DATA
XLT
CLK
Vcc
ISET
SL_O
SL_M SL_P
SENS2
47k
330k
470p
0.022µ
0.022µ
FZC
13
14
15
16
17
18
19
20
21
22
23
24
39
38
37
41
42
45
46
47
40
44
43
0.01µ
0.01µ
0.1µ
680k
510k
0.015µ
2200p
0.1µ
0.1µ 100k
4.7µ
DRIVER
0.033µ
Vcc
100k
DRIVER
10k
10k
0.068µ
0.01µ
0.033µ
0.01µ
30k
Vcc
22
100µ
10µH
100
500
Vcc
1k
3.3µ
A C
B D
PD
LD
1M
FDFCT
FGD
FLB
FE_O
FE_M
SRCH
TGU
TG2
FSET
TA_M
TA_O
FEI
PD1
PD
LD
RF_M
RF_O
RF_I
CP
CB
CC1
FOK
RFTC
CC2
PD2
FEO
2
3
4
5
6
7
8
9
10
11
12
1
25
26
27
28
29
30
36
35
34
31
32
33
48
Vcc
10µ
10µ
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
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