SM7153 Ver la hoja de datos (PDF) - Samhop Mircroelectronics

Número de pieza

componentes Descripción

Lista de partido

SM7153

ELECTRONIC VOLUME CONTROLLER

Samhop Mircroelectronics 

三合微科股份有限公司

SM7153

SAMHOP Microelectronics Corp. ELECTRONIC VOLUME

CONTROLLER

(3) Attenuator

The attenuator unit consist of diffused resistors and analog switches. Attenuator 1

attenuates 0~60dB at 10dB/step while Attenuator 2 attenuates 2~8dB at 2dB/step, a total

of 0~66dB at 2dB/step.

0dB BUFFER

IN1

AMP

0

OUT1

IN2

OUT2

-10

-2

-20

-4

-30

R1

-40

-6

R2

-8

A-GND

-50

-60

ATTENUATOR 1

R1=50kΩ(Typ.)

R2=20kΩ(Typ.)

Figure 4

00

ATTENUATOR 2

If there is the possibility for excessive voltage being to the attenuator, it is recommended to

insert a protective diode as illustrated below.

VDD

VDD

IN

Vss

Vss

Figure 5

Page 5

V.1.0

Share Link: