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Sony Semiconductor Electronic Components Datasheet

CXA1702AR Datasheet

4-channel REC/PB Amplifier for 8 mm VCR

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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


Sony Semiconductor Electronic Components Datasheet

CXA1702AR Datasheet

4-channel REC/PB Amplifier for 8 mm VCR

No Preview Available !

Block Diagram and Pin Configuration
CXA1702AR
REC1AOUT
REC1ACNT
VCC1CH
REC1BCNT
REC1BOUT
PB1BIN
GND1B
PBDUMP1B
PBDUMP2A
GND2A
PB2AIN
REC2AOUT
REC2ACNT
VCC2CH
REC2BCNT
REC2BOUT
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
HEAD
40dB
REC 1A
REC
15dB
RAMP
GEN
V/I
REC
RAMP
GEN
REC 1B
V/I
40dB
HEAD
15dB
PCMSW1 1A
1B
PCMSW2 2A
PCMSW3 (6dB)
1CH
2CH
MU TE
2B
VIDEOSW1
1A
1B
2A
2B
VIDEOSW2
GND
1CH
2CH
MU TE
VIDEOSW3 (0dB)
MT (-6dB)
12dB
DOCDET
GND
AGCDET
RF
AGC
BUFF
HEAD
15dB
40dB
REC 2A
REC
RAMP
GEN
V/I
REC
RAMP
GEN
REC 2B
V/I
40dB
HEAD
15dB
VPSW1 VIDEO
PCM
VPSW2 VIDEO
VPSW3
PCM
VIDEO
PCM
VPSW4
VIDEO
PCM
YGCA
1
LOW
1 GCA
1
1
1
1 LOW
2 GCA
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
RP_PB
DOP
DOCDET
RFAGCIN
RFAGCTC
RFAGCOUT
REFV
T2
YLEV_MTG
T1
LOWLEVEL
YIN
XDECK
CIN
GND2
AFMIN
—2—


Part Number CXA1702AR
Description 4-channel REC/PB Amplifier for 8 mm VCR
Maker Sony Corporation
Total Page 24 Pages
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