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ETC
ETC

CXA1372AQ Datasheet

RF Signal Processing Servo Amp for CD Player


CXA1372AQ Datasheet Preview


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RF SIGNAL PROCESSING SERVO AMP FOR CD PLAYER
-TOP VIEW-
37
38
39
40
41 VEE (-5V)
42
43
44
45
46
47
48
VEE(-5V)
24
23
22
21
20
19
18
17
16
15
14
13
CXA1372AQ(1/3)
IL08
PIN I/O
No.
SIGNAL
PIN I/O
No.
1I
VC 13 I
2I
FGD 14 O
3I
FS3 15 I
4I
FLB 16 I
5O
FEO 17 I
6I
FE- 18 I
7I
SRCH
19 -
8I
TGU 20 I
9I
TG2 21 I
10 -
m11 O
www.datasheet4u.co12 I
V CC(+5V) 22 I
TAO 23 I
TA- 24 I
SIGNAL
SL+
SLO
SL-
FSET
ISET
SSTOP
VEE(-5V)
DIRC
LOCK
CLK
XLT
DATA
PIN I/O
No.
25 I
26 O
27 O
28 -
29 O
30 O
31 I
32 O
33 O
34 I
35 O
36 -
SIGNAL
XRST
C.OUT
SENS
GND
MIRR
DFCT
ASY
EFM
FOK
CC1
CC2
VCC(+5V)
PIN I/O
No.
37 I
38 I
39 I
40 O
41 -
42 I
43 I
44 I
45 I
46 I
47 I
48 I
(VDD =+5V)
SIGNAL
CB
CP
RFI
RFO
VEE(-5V)
TZC
TE
TDFCT
ATSC
FZC
FE
FDFCT
Page 1

CXA1372AQ(2/3)
39
RFI
40
RFO
38
CP
29
MIRR
33
FOK
35
CC2
34
CC1
31
ASY
36
DVCC
37
CB
32
EFM
30
DFCT
45
ATSC
25
XRST
24
DATA
23
XTL
22
CLK
21
LOCK
20
DIRC
41
DVEE
19
AVEE
42
TZC
43
TE
44
TDFCT
46
FZC
47
FE
48
FDFCT
1
VC
2
FGD
4
FLB
3
FS3
10
AVCC
BPF WINDOW COMPARATOR
TTL
IIL
TTL
IIL DATA REGISTER INPUT SHIFT REGISTER
ADDRESS DECODER
IIL
OUTPUT DECODER
I SET
F SET
IIL
TTL
17
ISET
16
F SET
27
SENS
26
C.OUT
FS1-4
TG1-2
TM1-7
PS1-3
DFCT
TG1
TM1
TRACKING
PHASE
COMPENSATION
FOCUS
PHASE
COMPENSATION
TM7
TM6
TM5
TM4
TM3
FS1
TM2
TG2
18
SSTOP
15
SL-
14
SLO
13
SL+
28
DGND
12
TA-
11
TAO
8
TGU
9
TG2
7
SRCH
5
FEO
6
FE-
Page 2

CXA1372AQ(3/3)
39
RFI
38
CP
31
ASY
34
CC1
37
CB
45
ATSC
25
XRST
24
DATA
23
XTL
22
CLK
21
LOCK
20
DIRC
18
SSTOP
42
TZC
43
TE
44
TDFCT
46
FZC
12
TA
8
TGU
15
SL-
13
SL+
47
FE
48
FDFCT
2
FGD
4
FLB
3
FS3
9
TG2
7
SRCH
6
FE
17
ISET
16
FSET
40
RF0
29
MIRR
32
EFM
35
CC2
33
FOK
30
DFCT
27
SENS
26
C.OUT
11
TAO
14
SLO
5
FEO
INPUT
ASY ;INPUT PIN OF AUTO ASYMMETRY CONTROL.
CB ;CONNECTION PIN OF DEFECT BOTTOM HOLD CAPACITOR.
CC1 ;OUTPUT PIN OF DEFECT BOTTOM HOLD.
CLK ;SERIAL DATA TRANSFER CLOCK INPUT FROM CPU.
CP ;CONNECTING PIN OF MIRR HOLD CONDENSER.
NON-INVERTED INPUT PIN OF MIRR COMPARATOR.
DATA ;SERIAL DATA INPUT FROM CPU.
DIRC ;PIN FOR ONE-TRACK JUMP.CONTAINS A 47kΩ PULL-UP RESISTOR.
FDFCT;CAPACITOR CONNECTING PIN FOR
TIME CONSTANT DURING DEFECT FUNCTIONS.
FE ;INPUT PIN OF FOCUS ERROR.
FE- ;INVERSE INPUT PIN FOR FOCUS AMPLIFIER.
FGD ;CONNECT A CAPACITOR BETWEEN THIS PIN AND
PIN 3 TO REDUCE HIGH-FREQUENCY GAIN.
FLB ;TIME CONSTANT EXTERNAL PIN TO RAISE THE
LOW BANDWIDTH OF THE FOCUS SERVO.
FS3 ;THE HIGH-FREQUENCY GAIN OF THE FOCUS
SERVO IS SWITCHED THROUGH FS3 ON AND OFF.
FSET ;PIN TO SET PEAK FREQUENCY OF FOCUS TRACKING
PHASE COMPENSATION AND FC OF CLV LPF.
FZC ;PIN FOR FOCUS ZERO-CROSS COMPARATOR INPUT.
ISET ;CURRENT IS INPUT TO DETERMINE FOCUS SEARCH,
TRACK JUMP,AND SLED KICK HEIGHT.
LOCK ;AT L SLED RUNAWAY PREVENTION CIRCUIT OPERATES.
CONTAINS A 47kΩ PULL-UP RESISTOR.
RFI ;INPUT PIN WITH COUPLING CAPACITOR WHERE RF
SUMMING AMPLIFIER OUTPUT IS CONNECTED.
SL+ ;NON-INVERSE INPUT PIN FOR SLED AMPLIFIER.
SL- ;INVERSE INPUT PIN FOR SLED AMPLIFIER.
SRCH ;TIME CONSTANT EXTERNAL PIN FOR THE
FORMATION OF FOCUS SEARCH WAVEFORMS.
SSTOP;LIMIT SW ON/OFF SIGNAL DETECTION PIN FOR
DISC INNER PERIPHERY DETECTION.
TA- ;INVERSE INPUT PIN FOR TRACKING AMPLIFIER.
TDFCT;CAPACITOR CONNECTING PIN FOR TIME CONSTANT DURING DEFECTS.
TE ;INPUT PIN OF TRACKING ERROR AMPLIFIER.
TG2 ;TIME CONSTANT EXTERNAL PIN FOR
THE SELECTION OF TRACKING HIGH BAND GAIN.
TGU ;TIME CONSTANT EXTERNAL PIN FOR
THE SELECTION OF TRACKING HIGH BAND GAIN.
TZC ;INPUT PIN OF TRACKING ZERO-CROSS COMPARATOR.
VC ;CENTER VOLTAGE INPUT PIN
FOR DUAL POWER:GND
FOR SINGLE POWER SUPPLY:(VCC +GND)/2
XLT ;LATCH INPUT FROM CPU.
XRST ;RESET INPUT PIN,RESET AT L
OUTPUT
CC2 ;INPUT PIN FOR THE CAPACITANCE COUPLED OUTPUT OF
DEFECT BOTTOM HOLD.
C.OUT;TRACK NUMBER COUNT SIGNAL OUTPUT.
DFCT ;OUTPUT PIN OF DEFECT COMPARATOR.
EFM ;OUTPUT PIN OF EFM COMPARATOR.
FEO ;FOCUS DRIVE OUTPUT.
FOK ;OUTPUT PIN OF FOK COMPARATOR.
MIRR ;MIRR COMPARATOR OUTPUT PIN.
RFO ;OUTPUT PIN OF RF SUMMING AMPLIFIER AND
CHECK POINT OF EYE PATTERN.
SENS ;OUTPUTS FZC,AS,TZC AND SSTOP THROUGH COMMAND FROM CPU.
SLO ;SLED DRIVE OUTPUT.
TAO ;TRACKING DRIVE OUTPUT.
ATSC ;WINDOW COMPARATOR INPUT PIN FOR ATSC DETECTION.
Page 3
Part Number CXA1372AQ
Manufactur ETC
Description RF Signal Processing Servo Amp for CD Player
Total Page 3 Pages
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