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SON~
CXA 1372Q/S I
48pin QFP (Plastic)
RF Signal Processing Servo Amplifier for CD Player
Description The CXA 1372 is a bipolar IC developed for RF signal processing (focus OK, mirror, defect detection, EFM comparator) and servo control. Features • Single power supply, 5V • Low power consumption • Fewer external parts • Built-in circuit for effective disc defect measures • Share serial data bus from the microcomputer with CXD2500 • Fully compatible with CXA 1182 for microcomputer software Functions • Auto asymmetry control • Focus OK detection circuit • Mirror detection circuit • Defects detection, counter measures circuit • EFM comparator • Focus servo control • Tracking servo control • Sled servo control
48pin SDIP (Plastic)
Structure Silicon monolithic IC Absolute Maximum Ratings (Ta • Supply voltage • Operating temperature • Storage temperature • Allowable power dissipation
= 25°C) Vee - VEE Topr Tstg Po CXA 1372S CXA1372Q
12 -20 to +75 -55 to +150 833 457
oc oc
mW mW
v
Recommended Operating Conditions Vee- VEE Vee- DGND
3.6 to 11 3.6 to 5.5
v v
. . 8382383 0007141 755 . .
- i-
http://www.Datasheet4U.com
Sony reserves the nght to change products and specifications without notice. This information does not convey any license under patent rights of SONY corporation or others.
E89416-YA
CXA1372Q/S
CXA 1372Q Block Diagram
0
,_
0.1
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0
if)
0
>
0
0
0
(_)
0
0
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::;;;
LL
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0
U..
:z:
G
0
:z:
U";
0 0
=>
1(/)
LU
<(
0
a::
X
• TTL
•
·Ill DATA REGISTER
'
1:~
•INPU: SHIFT REGISTER • ADDRESS DECODER ·OUTPUT DECODER
TE
TDFCT
DFC7
·TRACKING PHASE COMPENSATION
S STOP
I SET
• WINDOW COMPARATOR F SET
FZC
FE
FDFCT
SLO
FS4
SL+
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2
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LL
0
I
-'
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=>
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0
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a:
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0
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1-
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- 2 -
8382383 0007142 691
CXA1372Q/S
Pin Configuration CXA1372S
N I-
u
u
(L
u
(I]
u u
> Cl
N
u u
u u
u..
;,::: 0
<(
>en
10
u u..
Cl
(!)
z
Cl
en z w (/')
l-
en
X
<(
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0:::
1_j
Cl
X
0
u
;,:::
_j
u
0:::
i5
CXA1372S
I-
w
u
(/')
I<(
N I-
u
w u..
1-
u
u..
lL.
I w
I
Cl
lL.
u
N
(!)
en
0:::
I-
<(
0
<(
I
I-
I-
en
_j
+
0
en
_j
_j
I
(/')
CXA1372Q
()
u
> Cl
u u
N
G ()
;,::: 0
l.J.._
;::i;
l.J.._
w
>(f)
<(
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u
lL. Cl
0::: 0:::
~
z (!)
Cl
Cl
I(f)
z
:::J
en
w
0 <...)
I-
en
X
0:::
CB CP RFI RFO DVEE
DATA XLT
LOCK DIRC
CXA1372Q
TE TDFCT ATSC FZC FE FDFCT
u
0
I") (f)
AVEE SSTOP ISET FSET SLSLO SL+
>
(!)
....._
(I] _j
lL.
....._
0
l.J.._
w
w ....._
I
I
u
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N
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0:::
I-
I-
u u
> <(
<(
0
I-
<(
l
I-
- 3 -
. . 8382383 0007143 528 . .
SONY®
Pin Description
Pin No.
Q
CXA1372Q/S
s
7
Symbol
1/0
Equivalent circuit
Description Center voltage input pin For dual power: GND For single power supply: (Vee + GND)/2
1
vc
I
2
8
FGD
I
Vee
Connect a capacitor between this pin and pin 3 to reduce high-frequency gain.
481<
180 130K
2
t
20•A
VEE
3
9
FS3
I
Th.