Sanyo LA7911 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

TV T uner Controller

Ordering number:ENN1194C

LA7911

SANYO Electric Co.,Ltd. Semiconductor Company

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

Overview

The LA7911 is a tuner controller IC having such functions
as band switch, inverter, low-pass filter, 33V referene Ze­ner. It can be used for frequenc y synthesizer or voltage syn­thesizer according to external application.

Package Dimensions

unit:mm

3006B-DIP16

[LA7911]

16

9

Functions

• Band switch (Equivalent to LA7900, LA7910 : Refer to
the truth table).

• Inverter.

• Low-pass filter (Voltage follower , operational amplif ier).

• 33V reference Zener.

Features

• 2-input 5-output band switch.

• Band switches of 2 types (LA7900 type or LA7910 type)
available by changing-over C pin.

• Large maximum output current and small saturation volt­age.

• Meets CATV tuner requirements.

• Usable for frequency synthesizer or voltage synthesizer
by changeing connection of inverter and operational am­plifier .

Band Switch Truth Table

tupnI tuptuO

)3niP(
A
L
H
L
H
L
H
L
H

Z : High impedance

)2niP(
B
L
L
H
H
L
L
H
H

)4niP(

C

nepO
nepO
nepO

nepO
DNG
DNG
DNG
DNG

)51niP(1F)41niP(2F)31niP(3F)21niP(4F)11niP(WS

H
Z
Z
Z
H
Z
Z
Z

1

0.71 2.54

Z
H
Z
Z
Z
H
Z
Z

6.4

7.62

0.25

8

19.2

3.0

3.65max

3.4

0.48

Z
Z
H
Z
Z
Z
H
H

1.2

SANYO : DIP16

Z
Z
Z
H
H
H
Z
H

Z
L
L
L
Z
L
L
L

12501TN (KT)/9148YT/8215KI/3164KI, TS No.1194–1/3

Specifications

Maximum Ratings at Ta = 25˚C

retemaraPlobmySsnoitidnoCsgnitaRtinU

]hctiwsdnaB[

V

1CC

V

2CC

V

3CC

]2.1otnommoC[

erutarepmetegarotSgtsT 521+ot55–

egatlovylppusmumixamV

tnerrucylppusmumixamI
tnerrucdaolmumixaM
tnerrucdaolmumixaMI

tnerructupniBAmumixaMI

)WS(egatlovdeilppamumixaMV

egatlovdeilppamumixaMV

]reifilpmalanoitarepo,retrevnI[

tnerrucylppusmumixamI

egatlovdeilppamumixaMV

tnerrucdaolmumixaMI

egatlovtupnimumixaMV

tnerructupnimumixaMI

egatlovtupnimumixaMV

noitapissidrewopelbawollAxamdP 006Wm

erutarepmetgnitarepOrpoT 56+ot02–

LA7911

xam 81V

61

xam 01Am

1

I21I,
I41I,

xamI1Am6=

31

xamV

51

xam 52Am

11

xam 2Am

2I,3

xam 53V

11

21V,41

xam 81–V

xam 8Am

6

xam 53V

8

xam 5Am

8

xam 8V

7

xam 1Am

7

xam VCC1–V

9

Ta≤65˚C

V21=

1CC

06–Am

˚C
˚C

Operating Characteristics at Ta = 25˚C

retemaraPlobmySsnoitidnoC

]hctiwsdnaB[

tnerructnecseiuQI

egatlovnoitarutastuptuO)tas(F07.0V
egatlovnoitarutastuptuO)tas(WS07.0V

egatlovdlohserhttupnIV

tnerrucegakaeltuptuOI

]renezecnerefer,reifilpmalanoitarepo,retevnI[

egatlovreneZV

egatlovnoitarutastuptuO)tas(8V03.0V

egatlovdlohserhttupnIV
1egatlovtesffotupnIV
2egatlovtesffotupnIV

tnerrucsaibtupnII

Note ) Current flowing into IC : Pulse (No sign)

Current flowing out of IC : Minus (–)

Equivalent Circuit Block Diagram

sgnitaR

nimpytxam

CC

HT

L

Z

HT

1-01
2-01

SAIB

09Am

8.05.13V
005–Aµ

133353V

5.25.4V
001–001+Vm
001–001+Vm

tinU

091–An

No.1194–2/3