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CXA1810AQ Datasheet(PDF) 4 Page - Sony Corporation

Part No. CXA1810AQ
Description  Luminance and Color Signal Processing for 8mm VCR
Download  53 Pages
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Maker  SONY [Sony Corporation]
Homepage  http://www.sony.co.jp
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CXA1810AQ Datasheet(HTML) 4 Page - Sony Corporation

 
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—4—
CXA1810AQ/AR
Pin Description
Pin
Symbol
Pin voltage
Equivalent circuit
Description
No.
DC
AC
Chroma emphasis f0 (center
frequency) adjustment. (Refer
to item 7 on Description of
Operation.)
Main emphasis and main de-
emphasis time constant.
When recording, the
emphasized Y signal prior to
white/dark clipping is output.
Main emphasis and main de-
emphasis time constant.
Apply an external constant
between this pin and Pin 2, as
shown below.
HPF time constant that forms
sub emphasis and sub de-
emphasis. Add resistance
between this pin and Pin 11.
During recording, Y emphasis
input. During playback, this
signal to the noise canceler is
input. Performs diode
clamping (sync tip clamping),
with the clamp capacitance
attached externally.
25µA
150
1
1mA
150
2
4k
100
3
100
4
100
150
5
1
C EMPH
CONT
2
MAIN
EMPH
OUT
3
MAIN
EMPH
TC
4
SUB
EMPH
TC
5
EMPH IN
Control
range:
1.8V to 3.8V
2.05V (sync
tip level)
2.05V (when
time constant
connected)
2.05V (when
time constant
connected)
2.05V (sync
tip level)
250mVp-p
output
500mVp-p
input
2
3
VG1
11
4


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