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PDF CXA1702AR Data sheet ( Hoja de datos )
| Número de pieza | CXA1702AR | |
| Descripción | 4-channel REC/PB Amplifier for 8 mm VCR | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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CXA1702AR
4-channel REC/PB Amplifier for 8 mm VCR
Description
The CXA1702AR is a bipolar IC designed as
recording/playback amplifiers for Hi8-compatible
VCRs.
64 pin LQFP (Plastic)
•Features
Recording/playback system
• Hi8-compatible wideband recording/playback
amplifier.
• Enables electric variable resistor (EVR) control.
•Recording system
• Feedback damping provided in the recording
amplifier and its EVR control function facilitate
printed circuit board design.
• Five-input (Y, chroma, AFM, ATF, PCM) mix
amplifier and EVR control function for Y/low-band
recording level.
• Ramp circuit for the recording amplifier output bias
current.
•Playback system
• Feedback dumping provided in the playback
amplifier facilitates printed circuit board design.
• Middle-frequency tuner on chip; EVR permits
independent adjustment of its center frequency fo,
Q and boost amount by EVR.
• RF AGC and dropout detection circuit.
Application
8 mm VCR
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
VCC
7
V
• Operating temperature Topr –10 to +75 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD
1010
mW
(when mounted on board)
Operating Condition
Supply voltage
VCC
4.75
+0.5
–0.25
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E93Z32-TE
1 page  
CXA1702AR
Pin
Symbol
No.
Pin voltage
DC AC
15 DOP H: 3.15V
L: 0V
output
—
16 RP_PB H: 2.3V
or more
L: 0.6V
or less
input
—
Equivalent circuit
150
3.15V
2.4k
1.3m
15
16
140
35µ
50k
5.4k
2.15V
Description
Output pin for dropout detection
signal. Goes High at the time of
dropout.
Input pin for REC/PB switching
signal.
H : PB
L : REC
17 MTOUT
2.4V
220mVp-p
(playback
Y signal)
output
18 Vcc2
19 PCMOUT
4.75V
1.95V
—
220mVp-p
output
40µ
4k
400µ
330µ
17
25µ
19
3.5k
360µ
240µ
20 MTF0 1.8V to
—
4.75V
input
270
20
140 30k 11k
Output pin for playback video
signal.
Power supply pin.
Output pin for playback PCM
signal.
EVR adjusting pin for middle tune
fo. Increasing the input voltage
increases fo.
40µ 40µ 2.85V 1.7V
—5—
5 Page 
CXA1702AR
—11—
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet CXA1702AR.PDF ] | |
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