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Sony Semiconductor Electronic Components Datasheet

CXA1704R Datasheet

2-channel REC/PB Amplifier for 8mm VCR

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CXA1704R pdf
CXA1704R
2-channel REC/PB Amplifier for 8mm VCR
Description
The CXA1704R is a bipolar IC designed as a
recording/playback amplifier for Hi8-compatible
VCRs.
48 pin LQFP (Plastic)
Features
O Recording system
Feedback damping provided in the recording
amplifier and its EVR control function facilitate
circuit board design.
Y, chroma, and low-band level adjustment
functions
Ramp circuit
O Playback system
Feedback damping provided in the playback
amplifier facilitates circuit board design.
Middle-frequency tuner on chip; EVR permits
independent adjustment of f0, Q and boost
RF AGC and dropout detection circuit
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 1100 mW
(when board is mounted)
Operating Conditions
Supply voltage
+0.5 V
VCC 4.75
–0.25
Structure
Bipolar silicon monolithic IC
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—
E93860A66-TE


Sony Semiconductor Electronic Components Datasheet

CXA1704R Datasheet

2-channel REC/PB Amplifier for 8mm VCR

No Preview Available !

CXA1704R pdf
Block Diagram and Pin Configuration
CXA1704R
VCC1
25
REC1CONT
26
REC1OUT
27
PB1IN
28
GND1
29
PBDUMP1
30
PBDUMP2
31
GND2
32
PB2IN
33
REC2OUT
34
REC2CONT
35
VCC2
36
24 23 22 21 20 19 18 17 16 15 14 13
REC
RAMP
GEN
V/I
40dB
HEAD
15dB
1CH
2CH
MUTE
PCMSW
1CH(0dB)
1CH(6dB)
2CH(0dB)
2CH(6dB)
MUTE
VIDEOSW
M•T
–6dB
12dB
AGCDET
RF
AGC
DOCDET
HEAD
40dB
15dB
REC
V/I
RAMP
GEN
VPSW1
VIDEO
1
PCM
1
YGCA
VPSW2
VIDEO
PCM
1
2
1 CGCA
LOWGCA
1
1
LOWGCA
DOP
12
DOCDET
11
RFAGCIN
10
RFAGCTC
9
RFAGCOUT
8
YLEVEL
7
YIN
6
LOWLEVEL
5
CIN
4
XGAIN
3
AFMIN
2
CCONT
1
37 38 39 40 41 42 43 44 45 46 47 48
—2—


Part Number CXA1704R
Description 2-channel REC/PB Amplifier for 8mm VCR
Maker Sony Corporation
Total Page 24 Pages
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