SM7183 データシートの表示（PDF） - Samhop Mircroelectronics

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SM7183

ECHO

Samhop Mircroelectronics 

三合微科股份有限公司

SAMHOP Microelectronics Corp.

SM7183

ECHO

GENERAL DESCRIPTIONS

SM7183 is an Audio Echo Processor

using CMOS Technology. It has built-in

AD/DA and 30KBits SRAM for time delay.

Three sample rate selection and eight

delay time selection. Many combination

to fit your applications.

FEATURES

* Built-in adjustable OSC.

* Built-in power on reset circuit.

* Built-in 30KBits SRAM for delay control.

* Adjustable delay time setting:

Echo Mode: 20.5ms ~ 163.8ms

Surround Mode: 4.1ms ~ 41.0ms

(Based on 6MHz OSC)

* Direct control & Micro-processor control

interface.

* Auto muting during power up and change

mode.

APPLICATIONS

* VCD

* Karaok

* TV

* Audio System

* Car Stereo

PIN ASSIGNMENT

AVDD

1

28

VREF

2

27

AGND

3

26

DGND

4

25

NC1

5

24

OSCR

6

23

SDI/PDI

7

22

DVDD

8

21

Test

9

20

EC/SR

10

19

SDReq/PD1

11

18

SDCK/PD2

12

17

SDData/PD3

13

16

Mute

14

15

OP1-IN

OP1-OUT

ECFB

NC2

OP2-OUT

OP2-IN

DAC-OUT

DAC-IN

ADC-OUT

ADC-IN

ADCTL-2

ADCTL-1

DACTL-2

DACTL-1

Page 1

V.2.0 MAR. 8, 2002

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