Ordering number:ENN4040
Overview
The LA7282 and 7282M are small package ICs containing all functions necessary to record and playback VCR audio
signal.
Features
•Small package leaves large space for other components.
•Delete of In and Output electrolysis capacitor.
•Low capacitor (0.1 F) for the line amplifier inputs (PB IN and AUDIO IN)
•Non-Adjustment of PB Gain by less gain scatter.
Monolithic Linear IC
LA7282, 7282M
VCR Audio Signal Recording /
Playback Processor
Package Dimensions
unit:mm
3067A-DIP24S
[LA7282]
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21.0 |
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24 |
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13 |
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7.62 |
6.4 |
0.25 |
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1 |
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12 |
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0.9 |
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(3.25) |
3.9max |
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(0.71) |
1.78 |
0.48 |
0.51min |
3.3 |
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0.95 |
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SANYO : DIP24S
unit:mm
3112A-MFP24S
[LA7282M]
24 |
13 |
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5.4 |
7.6 |
1 |
12.5 |
12 |
1.7max |
0.15 |
0.63 |
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1.5 |
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1.0 |
0.1 |
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0.35 |
(0.75) |
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SANYO : MFP24S
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O2500TN (KT)/6292TS No.4040–1/7
LA7282, 7282M
Specifications
Maximum Ratings at Ta = 25˚C
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Maxumum supply voltage |
VCC max |
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14 |
V |
Pin 1 input voltage |
VIN1 |
Ta=65˚C, f=80kHz (sin), ILK=10µ A |
90 (±45) |
Vp-p |
Pin 1 input current |
IIN1 |
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±1.5 |
mA |
Allowable power dissipation |
Pd max |
Ta≤ 65˚C, when mounted on the recommended PCB |
400 |
mW |
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Operating temperature |
Topr |
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–10 to +65 |
˚C |
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Storage temperature |
Tstg |
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–55 to +125 |
˚C |
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Operating Conditions at Ta = 25˚C
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Recommended supply voltage |
VCC |
|
12.0 |
V |
Operating voltage range |
VCC op |
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11.25 to 12.75 |
V |
Operating Characteristics at Ta = 25˚C, VCC=12V, f=1kHz, 0dBv= : 1.0Vrms
Parameter |
Symbol |
Conditions |
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Ratings |
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Unit |
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min |
typ |
max |
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Current drain (FE) |
ICCE |
Quiescent |
8.0 |
12.0 |
17.0 |
mA |
Current drain (PB) |
ICCP |
Quiescent |
9.0 |
13.0 |
18.0 |
mA |
Current drain (REC) |
ICCR |
Quiescent |
7.0 |
10.0 |
14.0 |
mA |
Overall gain at PB mode |
VGPB |
EQ IN-LINE OUT, VO=–5dBv |
59.0 |
59.5 |
60.0 |
dB |
[Equalizing amplifier] |
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Open loop voltage gain |
VGOE |
VO=–5dBv |
66.0 |
71.0 |
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dB |
Equivalent input noise voltage |
VNIE |
Rg=2.2kΩ , DIN audio filter |
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1.2 |
1.8 |
µVrms |
Input impedance |
ZINE |
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130 |
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kΩ |
[Line amplifier] |
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Voltage gain (PB IN) |
VGLP |
VO=–5dBv |
21.0 |
21.5 |
22.0 |
dB |
Voltage gain (EE, REC IN) |
VGLR |
VO=–5dBv |
21.0 |
21.5 |
22.0 |
dB |
Total harmonic distortion |
THDL |
VO=–5dBv |
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0.3 |
0.5 |
% |
Output noise voltage |
VNOL |
DIN audio filter |
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–70.0 |
–64.0 |
dBv |
Input impedance (PB IN) |
ZIN1 |
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120 |
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kΩ |
Input impedance (EE, REC IN) |
ZIN2 |
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120 |
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kΩ |
Maximum output voltage |
VOML |
THD=3% |
1.5 |
2.1 |
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Vrms |
Output voltage at ALC |
VOA |
VIN=–28dBv |
–9.0 |
–8.0 |
–7.0 |
dBv |
ALC Effect |
ALC |
VIN=–28 to –8dBv |
|
1.5 |
3.0 |
dB |
Total harmonic distortion at ALC |
THDA |
VIN=–28dBv |
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0.25 |
0.6 |
% |
[Recording amplifier] |
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Voltage gain (open loop) |
VGOR |
VO=–5dBv |
47.0 |
52.0 |
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dB |
Voltage gain (closed loop) |
VGCR |
VO=–5dBv |
12.5 |
13.0 |
13.5 |
dB |
Total harmonic distortion |
THDR |
VO=–5dBv |
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0.1 |
0.3 |
% |
Input impedance |
ZINR |
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50 |
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kΩ |
Maximum output voltage |
ZOMR |
THD=3% |
1.5 |
2.0 |
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Vrms |
[Muting circuit] |
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On voltage |
VMON |
Pin 22, DC |
3.8 |
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6.0 |
V |
Off voltage |
VMOFF |
Pin 22, DC |
0 |
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1.0 |
V |
Mute attenuation level (PB, EE) |
MP, ME |
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80.0 |
90.0 |
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dB |
Mute attenuation level (REC) |
MR |
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65.0 |
70.0 |
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dB |
[PB/EE selector circuit] |
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PB mode hold voltage |
VPP |
Pin 23, DC |
0 |
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1.0 |
V |
EE mode hold voltage |
VPE |
Pin 23, DC |
3.3 |
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6.0 |
V |
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[REC/EE selector circuit] |
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REC mode hold voltage |
VRR |
Pin 24, DC |
3.3 |
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VCC |
V |
EE mode hold voltage |
VRE |
Pin 24, DC |
0 |
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1.0 |
V |
[Equalizer selector circuit] |
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Switch on voltage |
VEON |
Pin 20, 21, DC |
3.5 |
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6.0 |
V |
Switch off voltage |
VEOFF |
Pin 20, 21, DC |
0 |
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0.8 |
V |
[Head selector switch] |
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Pin 1 on resistance |
RON1 |
I1=±1mA |
|
15 |
30 |
Ω |
Pin 2 on resistance |
RON2 |
I2=±1mA |
|
5 |
10 |
Ω |
Pin 1 input voltage |
VIN1 |
Ta=65˚C, f=80kHz (sin), ILK=10µ A |
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±45 |
V |
No.4040–2/7
LA7282, 7282M
Block Diagram
No.4040–3/7