三合微科股�½有限公司
S
AM
H
OP
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
IN
IN
IN
IN
AIN
AIN
AIN
AIN
AIN
AOUT
AIN
AOUT
AIN
AOUT
Mute control
DAC control pin1
DAC control pin2
ADC control pin1
ADC control pin2
ADC OP input
ADC OP output
DAC OP input
DAC OP output
OP2 input
OP2 output
No connection
Echo feed back pin
OP1 output
OP2 input
V.2.0 MAR. 8, 2002
I/O
Power
AI/O
Power
Power
Add resistor to modify internal OSC
Micro processor Serial interface or
Parallel input selection
Digital positive power supply
Test mode input
Echo or Surround mode selection
Micro processor Serial interface or
Parallel input
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
