Sanyo LA7451M Specifications
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.
Monolithic Linear IC
Two-Channel, Noise Reduction Processor
for 8-mm VCR PCM
Ordering number:ENN3806A
LA7451M
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LA7451M is a two-channel, noise reduction processor
IC for 8-mm video recorder, pulse code modulation (PCM)
circuits.
The LA7451M incorporates two filters, on per channel,
comprising emphasis circuits, weighting compensators,
voltage-controlled amplifiers (VCA) and detectors. Filter
control circuitry sets the emphasis and weighting of each
filter.
The LA7451M operates from a 4.75V supply and is avail-
able in 30-pin MFPs.
Package Dimensions
unit:mm
3073B-MFP30SD
[LA7451M]
15.2
30
16
7.9
9.2
10.5
Features
• Filter control.
• Emphasis circuits.
• W eighting compensators.
• Voltage-controlled amplifiers (VCA).
• 4.75V supply.
• 30-pin MFP.
Specifications
Maximum Ratings at Ta = 25˚C
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erutarepmetgnitarepOrpoT 57+ot02–
erutarepmetegarotSgtsT 051+ot04–
Recommended Operating Conditions at Ta = 25˚C
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egatlovylppuSV
egnaregatlovylppuSV
CC
CC
CC
1
0.4
15
1.0
0.25
(2.25)
2.45max
0.1
(0.6)
SANYO : MFP30SD
0.65
7V
˚C
˚C
57.4V
5.5ot5.4V
O2500TN (KT)/D061TS No.3806–1/11
LA7451M
Operating Characteristics at Ta = 25˚C, VCC=4.75V
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leveltuptuomumixaMV
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]edomCER[
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Note
JIS=Japanese Industrial Standard
RCC
PCC
FER
PO
HCO
PVI
PMO
PNO
RO
RVI
RMI
RNO
R
P
V
I
V
I
k1=gR Ω retlifA-SIJ,301–69–sBd
k1=gR Ω retlifA-SIJ,66–06–sBd
I
sgnitaR
nimpytxam
0.010.310.61Am
0.010.310.61Am
23nip:CD092.2573.2554.2V
R,zH004=f,sBd61–=
k01= Ω 0.81–0.61–0.41–sBd
L
R,zH004=f,sBd61–=
k01= Ω 1–01+Bd
L
R,zH004=f,sBd61–=
k01= Ω 1.05.0%
L
R,zH004=f,%1=DHT
k01= Ω 0.00.3sBd
L
R,zH004=f
k2= Ω V:
L
R,zH004=f
k2= Ω V:
L
R,zH004=f
k2= Ω V:
L
R,zHk7=f
k2= Ω V:
L
R,zHk7=f
L
R,zHk7=f
L
I
k2= Ω V:
I
k2= Ω V:
I
R,zH004=f,%1=DHT
zHk1=f,sBd6–= 54–Bd
sBd61–=0.71–0.61–0.51–sBd
I
sBd63–=5.72–5.62–5.42–sBd
I
sBd65–=5.73–0.63–5.43–sBd
I
sBd61–=4.31–9.11–4.01–sBd
sBd63–=4.32–9.12–4.02–sBd
sBd65–=4.33–9.13–4.03–sBd
R,zH004=f,sBd61–=
k2= Ω 2.05.0%
L
k2= Ω 0.00.3sBd
L
LORTNOCCER/BPtaderusaeM0.00.1V
LORTNOCCER/BPtaderusaeM0.3V
tinU
V
CC
Pin Assignment
No.3806–2/11
Block Diagram
LA7451M
Pin Functions
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1FERI
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k01 Ω .V4.2siegatlovlanimondna
Continued on next page.
No.3806–3/11
Continued from preceding page.
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LA7451M
31FERV
41NIRN
51BFNBPAOM
61TUOAOM .V4.2siegatlovlanimoN.1uptuoreifilpmagnitareponiaM
09 Ω V5.0(V4.2siegatlovlanimondna
.)
CC
.V4.2siegatlov
.V4.2
k02siecnadepmitupnI.tupni1lennahC Ω lanimondna
siecnadepmituptuO.tuptuoegatlovecnerefer1lennahC
kcabdeefevitagenedom-kcabyalpreifilpmagnitareponiaM
siegatlovlanimoN.noitasnepmocerutreparofdesU.1tupni
71CPAOM
81TUOCERRN .reffubtuptuoecnadepmi-woL.1tuptuoedom-gnidroceR
V1.3siegatlovlanimoN.1noitcennoc
roticapacnoitasnepmocesahpreifilpmagnitareponiaM
Continued on next page.
No.3806–4/11
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