參數(shù)資料
型號(hào)： CXA1702AR
廠商： Sony Corporation
英文描述： 4-channel REC/PB Amplifier for 8 mm VCR
中文描述： 4通道承包/鉛為8毫米放大器錄像機(jī)
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 550K
代理商： CXA1702AR
—3—
CXA1702AR
Pin Description
(V
CC
, V
CC
2, V
CC
1CH, V
CC
2CH=4.75V, Ta=25°C)
1
AFM IN
—
125mVp-p
input
2
3
GND2
CIN
0V
—
2.45V
500mVp-p
input
4
XDECK
2.4V
(when pin
is open)
H: 4.3 V
or more
L: 0.6 V
or less
input
2.45V
—
5
YIN
500mVp-p
input
6
LOW
LEVEL
1.8V to
4.75V
input
—
7
8
T1
—
—
—
YLEV_MTG
1.8V to
4.75V
input
Input pin for recording AFM
signal. Input signal bias should
be in the range from 1 V to 3.5 V.
Connect to Vcc when the pin is
not in use.
GND pin
Input pin for recording chroma
signal.
DECK and NORM switching pin
H
:
NORM (4ch)
L
:
Open :
}
DECK (2ch)
Input pin for recording Y signal.
EVR adjusting pin for low-band
recording signal (chroma, AFM,
video path ATF, PCM path ATF)
level. Increasing the input
voltage lowers the signal level.
Test pin. Set the pin open.
EVR adjusting pin for recording Y
signal level and middle tune boost
amount. Adjusts the former during
recording and the latter during
playback. Increasing the input
voltage lowers recording Y signal
level and boost amount.
Pin
No.
Symbol
Pin voltage
DC
Equivalent circuit
Description
AC
1
140
20p
50k
2.45V
70μ
140
25μ
50k
2.45V
3
140
4
100k
100k
20μ
2.9V
1.8V
20μ
140
50k
2.45V
40μ
5
140
6
21k
270
90μ
3.15V
90μ
270
8
270
23k
140
14k
1.75V
2.8V
100μ
100μ
3.2V
90μ
90μ
YLEVEL
MTG
—
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