Specifications of any and all SANYO Semiconductor Co.,Ltd. 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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

31208 MS B8-8106 No.A1144-1/4

LA7791T

Overview

The LA7791T is variable gain controlled amplifier with upstream driver. It is ideally suited for use with QAM/QSPK

transmitter system.

Functions

• Differential input amplifier

• Attenuator amplifier

• Driver amplifier with differential output

• Power Save function (Power Save control pin)

• Shut Down function (Shut Down control pin)

• Serial bus interface

Specifications

Maximum Ratings at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum Supply Voltage

VCC max

Pin 2,19

6.0

V

Maximum Voltages1

Vin max

Pin 8,9,10,12,18

VCC

V

Maximum Voltages2

Vout max

Pin 15,16

8.0

V

Allowable Power Dissipation

Pdmax

Ta<=+75

°C

830

mW

Operating Temperature Range

Topr

-20 to +75

°C

Storage Temperature Range

Tstg

-55 to +150

°C

Monolithic Linear IC

For CATV/Cable Modem

Variable Gain Controlled Amplifier

Ordering number : ENA1144