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CXA1702AR Datasheet(Fiches technique) 4 Page - Sony Corporation

Numéro de pièce CXA1702AR
Description  4-channel REC/PB Amplifier for 8 mm VCR
Télécharger  24 Pages
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Fabricant  SONY [Sony Corporation]
Site Internet  http://www.sony.co.jp
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 4 page
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—4—
CXA1702AR
9T2
10
REFV
Hi8:4.45V
Nor:3.6V
input
11
RFAGC
1.9V
400mVp-p
OUT
output
12 RFAGCTC 2.5V to
4.75V
input
(during
EVR ad-
justment)
13
RFAGC
220mVp-p
IN
input
14 DOCDET 2.55V
(when pin
is open)
Test pin. Connect decoupling
capacitance between this pin and
GND.
EVR adjusting pin to decide the
adjustment range of middle tune
fo.
Input the following:
Hi8 : 4.45 V
Nor: 3.6 V
Output pin for playback Y signal.
RFAGC time constant pin.
RFAGC gain may be adjusted by
EVR.
Increasing the input
voltage increases gain.
Input pin for playback Y signal.
Playback Y signal is separated
from playback video signal output
to Pin 17 (MTOUT), then input to
Pin 13 (RFAGCIN). Set input
signal bias in the range from 1 V
to 3.5 V. Connect to Vcc when
this pin is not in use.
Pin for deciding dropout detection
level.
Connect
decoupling
capacitance between this pin and
GND. For adjustment, input
voltage proportional to Pin 52
(VREG) output voltage.
Increasing the input voltage
increases the detection level.
Pin
Symbol
Pin voltage
Equivalent circuit
Description
No.
DC
AC
140
60k
270
40µ
3.25V
40µ
10
15k
11
40µ
2k
600µ
410µ
12
140
50µ
50µ
25µ
25µ
140
13p
50k
3.25V
13
50µ
14
26.5k
42.5k
4.15V
140
50µ
12
RFAGCTC
4700p
470k
VCC




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