Sanyo LB1450 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 Digital IC
LED T uning Indicator
Ordering number:ENN730F
LB1450
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Use
Indicates tuning condition of FM receiver by means of 5
mode – 3 LEDs.
Features
• 3 LEDs display 5 mode tuning condition.
Since the LEDs are driven under constant current supply,
the LED current varys as shown below when two LEDs
are lighted on simultaneously. This causes their brightness to vary, and enables the dynamic indication.
• Desired tuning width can be set as the threshold width of
window comparator is variable externally.
• No switching radiation can be made as LED current
changes over linearly.
• Blanking at station interval and AM reception is easy to
set by blanking pin.
• Direct interface can be made to IF IC using quadrature
detector (ex. LA1231, LA1140, etc.)
• Single-ended 9 pin package with small mounting area.
mode
LED light-
ing mode tuning condition
(–) detuned
semituned
tuned
semi tuned
(+) detuned
lighted off
Package Dimensions
unit:mm
3017D-SIP9
[LB1450]
22.0
1
(0.84)
2.54
0.5
(4.5)
9
0.51min
1.3
SANYO : SIP9
3.0
5.7max
3.2
0.25
1.35
22801TN (KT)/20295HK/7097KI/7213KI/D190KI No.730–1/4
Specifications
Absolute Maximum Ratings at Ta = 25˚C
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Allowable Operating Ranges at Ta = 25˚C
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Electrical Characteristics at Ta = 25˚C, VCC=12V
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Ta=60˚C
CC
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LB1450
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2–0Aµ
02–02+Aµ
2–0Aµ
RNI
RNI
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051002052Vm
052–002–051–Vm
118152Am
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014005055Vm
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61+ot3.0–V
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01Aµ
˚C
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Equivalent Circuit Block Diagram and Pin Assignment
No.730–2/4
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