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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erutarepmetgnitarepOrpoT 07+ot02–
Allowable Operating Ranges at Ta = 25˚C
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Electrical Characteristics at Ta = 25˚C, VCC=12V
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tnerruckaeltuptuOI
niardtnerruCI
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CC
V
V
I
I
V
V
I
I
I
V
V
VCCV>
RNI
V
VCCV>
NI
tnocV 4+ot3.0–V
VCCV>
LB
TUO
Ta=60˚C
CC
T
I
NI
RNI
LBNI
VNIV–
+ht
VNIV–
–ht
,1
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,2
TUO
3
TUO
)L(LB
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FFO
CC
LB1450
RNI
NI
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4,3,2niP 61V
nimpytxam
2–0Aµ
02–02+Aµ
2–0Aµ
RNI
RNI
dedulcxetnerrucDEL0.38.36.5Am
051002052Vm
052–002–051–Vm
118152Am
063034005Vm
014005055Vm
61+ot3.0–V
61+ot3.0–V
61+ot3.0–V
61ot8V
002Vm
sgnitaR
01Aµ
˚C
tinU
Equivalent Circuit Block Diagram and Pin Assignment
No.730–2/4
LB1450
Application : The case of window width 400mV typ. (±200mV) and interstation blanking.
No.730–3/4
LB1450
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of February, 2001. Specifications and information herein are subject
to change without notice.
PS No.730–4/4
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