Sanyo LA7910 Specifications
Ordering number:ENN920E
Monolithic Linear IC
LA7910
TV Tuner Band Selector
Overview
The LA7910 is an IC for tuner band selection of electronic tuning type television set. This IC is used for producing the VHF channel “L” band power supply/VHF channel “H” band power supply/UHF channel power supply for tuner and the CATV power supply according to the band select signal of 2 inputs.
Functions
•VHF “L” band power supply output.
•VHF “H” band power supply output.
•UHF power supply output.
•CATV power supply output.
Features
•2 inputs and 4 outputs.
•Low output saturation voltage : 0.25V typ., IO=60mA.
•Compact 9-pin single-end package.
Package Dimensions
unit:mm |
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3017D-SIP9 |
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[LA7910] |
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22.0 |
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3.0 |
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(4.5) |
5.7 max |
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1 |
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9 |
min |
3.2 |
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0.51 |
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(0.84) |
2.54 |
0.5 |
1.3 |
0.25 |
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1.35 |
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SANYO : SIP9 |
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Specifications
Maximum Ratings at Ta = 25˚C
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Maximum supply voltage |
V9 max |
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15 |
V |
Maximum load current |
I1 max, I2 max, |
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–60 |
mA |
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I7 max, I8 max |
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Maximum supply current VCC2 |
I6 max |
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10 |
mA |
Input current |
I3 max, I4 max |
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2 |
mA |
Allowable power dissipation |
Pd max |
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200 |
mW |
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Operating temperature |
Topr |
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–20 to +85 |
˚C |
Storage temperature |
Tstg |
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–55 to +125 |
˚C |
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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)/O3095MH/N178YT/3204KI/7091KI No.920–1/3
LA7910
Operating Characteristics at Ta = 25˚C
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 |
I1, I2, I7, I8 |
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60 |
mA |
Output saturation voltage |
VO(sat) |
V9=12V, I6=5mA, IO=60mA |
0 |
0.25 |
0.7 |
V |
Input high-level threshold voltage |
VTH |
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3.0 |
V |
Input low-level threshold voltage |
VTL |
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0.8 |
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V |
Output leakage current |
I1, I2, I7, I8 |
Ta≤70˚C |
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50 |
µA |
Note ) Current direction :
Current flowing into IC : Pulse (No sign)
Current flowing out of IC : Minus (–)
Truth Table
Input |
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Output |
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Pin 3 |
Pin 4 |
Pin 1 |
Pin 2 |
Pin 7 |
Pin 8 |
Input threshold voltage |
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L |
L |
H |
Z |
Z |
Z |
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: VTL=0.8V, VTH=3V |
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H |
L |
Z |
H |
Z |
Z |
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L |
H |
Z |
Z |
H |
Z |
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H |
H |
Z |
Z |
Z |
H |
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Sample Application Circuit
Proper cares in using the IC
1.When using a capacitive load, connect a diode across pins 6 and 9 as shown above.
2.The value of load capacitors C1, C2, C3, C4 must not exceed 22 F.
No.920–2/3
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