Sanyo LA7916 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

Peripheral Circuit for TV/VCR Frequency

Synthesizer Channel Select System

Ordering number:ENN4038

LA7916

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Overview

The LA7916 contains CPU/PLL-excluded peripheral cir­cuits such as switch, +5V power supply (with RST), sync
detector, low-pass filter for color TV/VCR frequency syn­thesizer channel select system use.

Functions

• Band switch (2-input 4-output).

• Video signal, flyback pulse, AFT output-used detection
of tuning mode and horizontal sync mode.

• +5V power supply, with RST ouput (for CPU).

• Operational amplifier for low-pass filter (for frequency
synthesizer).

Features

• The band switch truth table can be changed in a short
period of time at the user’s option.

• The band switch is of pnp output type which need not be
driven externally.

• The operational amplifier for low-pass filter is excellent
in pulse response because of its high-impedance input
pin.

Package Dimensions

unit:mm

3021C-DIP20

[LA7916]

24.0

20

1

1.0

(0.57)

2.54

0.5

1.2

11

7.62

10

(3.25)

0.51min

SANYO : DIP20

6.4

0.25

3.9max

3.3

Specifications

Maximum Ratings at Ta = 25˚C

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V

1CC

V

2CC

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I41I,

I61I,

V41V,

V61V,

V

6

31

51

71

01

8

Ta≤65˚C

xam 51V

,xam

xam

,xam

51

xam

71

V,xam

xam

7

xam 51V

xam 83–Am

ffotuptuO 51–V

V

V41=21V

1CC

12501TN (KT)/N261TH No.4038–1/4

˚C
˚C

05–Am

Continued on next page.

Continued from preceding page.

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Operating Conditions at Ta = 25˚C

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LA7916

xam 5.3V

2

xam V

3

xam 4.1–V

2
91V-02

xam 3–Am

1

xam 53V

21

xam 9.5V

11

sgnitaR

nimpytxam

V

01

V

31

I4I,

5

I

21

V

91

0.9210.41V

0.9210.41V

35Am

7.20.7V

V

1CC

6V

tinU

3Am

Operating Characteristics at Ta = 25˚C

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tnerructupnII

V

V

V4tasAm2=knisI033.07.0V
V5tasAm2=knisI033.07.0V

sgnitaR

nimpytxam

1CC

V,

HT6

HT7

V,

LT6

LT7

LF

2CC

8

9

HT2

91C

HC

LC

LO

HT1

21

11

V51– 05–Aµ

I

Am03–=5.45.5V

8

tasI9Aµ001–=5.45.5V

tas03.0V

HT11

0.61Am

2.2V

08.0V

6.3Am

4.027.05.1V

7.30.43.4V

7.50.63.6V

7.20.33.3V

08.1–09.0–Am
051–Aµ

0.24.2V
02An

tinU

Band Switch Truth Table

tupnItuptuO

A

)7niP(
L
H
L
H

B

)6niP(
L
L
H
H

1F

)41niP(
H
Z
Z
Z

2F

)51niP(
Z
H
Z
Z

3F

)61niP(
Z
Z
H
Z

4F

)71niP(
Z
Z
Z
H

No.4038–2/4

Operation of Tuning Detection Section

edoMgninuTtuptuOFPLTFA1TUO2TUO

dezinorhcnysnUL

dezinorhcnySH

L-TFA
C-TFA
H-TFA

L-TFA
C-TFA
H-TFA

AFT -L : V
AFT -C : VCL<V
AFT -H : V

L
L
L

H
H
L

LA7916

L
L
L

L
H
H

AFT<VCL

AFT<VCH

AFT>VCH

+5V Power Supply, RST Output

When +5V output V8 becomes approximately 4V at the time of application of power , the reset signal is
delivered at pin 9. The r eset signal can be delayed by a capacitor (recommended v alue : 1µF) externally
connected to RST output V9.

No.4038–3/4

Sample Application Circuit

LA7916

VCR application : In VCR applications without flyback pulse, connected pin 2 to VCC through a resistor.

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 January, 2001. Specifications and information herein are subject
to change without notice.

PS No.4038–4/4