15V 150mW ECHO
SAMHOP Microelectronics Corp.
SM7183 ECHO
GENERAL DESCRIPTIONS
SM7183 is an Audio Echo Processor using CMOS Technology...
Description
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 VREF AGND DGND NC1 OSCR SDI/PDI DVDD Test EC/SR SDReq/PD1 SDCK/PD2 SDData/PD3 Mute
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 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
SAMHOP Microelectronics Corp.
SM7183 ECHO
Function Analog positive power supply Analog reference voltage Analog negative power supply Digital negative power supply No connection
PIN DESCRIPTION
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name AVDD VREF AGND DGND NC1 OSCR SDI/PDI DVDD Test EC/SR SDReq/PD1 SDCK/PD2 SDData/PD3 Mute DACTL-1 DACTL-2 ADCTL-1 ADCTL-2 ADC-IN ADC-OUT DAC-IN DAC-OUT OP2-IN OP2-OUT NC2 ECFB OP1-OUT OP1-IN AOUT AIN AOUT Page 2 OSC IN Power IN IN I...
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