三合微科股�½有限公司
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Microelectronics Corp.
SM7181
ECHO
DESCRIPTIONS
SM7181 is an Audio Echo Processor using
CMOS Technology. It has buildin AD/DA and
8KBits SRAM for echo effect time delay.
FEATURE
* Buildin adjustable OSC.
* Buildin power on reset circuit.
* Buildin 8KBits SRAM for delay control.
* By change oscillator resistor to echo effect
time.
APPLICATIONS
*
*
*
*
*
VCD
Karaok
TV
Audio System
Car Stereo
VREF
OSC1
OSC2
VDD
DGND
AGND
ADCTL
DACTL
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OP1-IN
OP1-OUT
ADC-OUT
ADC-IN
DAC-IN
DAC-OUT
OP2-IN
OP2-OUT
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