MX-DVA9/MX-DVA9R
1-71
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
OSC
COUNTER
A/D
SRAM
D/A
MIX
- +
- +
GND
ECHO VR
BIAS
DAINT IN
DAINT OUT
DALPF IN
DALPF OUT
MIX OUT
CR
MUTE
VCC
ADINT IN
ADINT OUT
ADLPF OUT
ADLPF IN
MIX IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
GND
ECHO VR
BIAS
DAINT IN
DAINT OUT
DALPF IN
DALPF OUT
MIX OUT
MIX IN
ADLPF IN
ADLPF OUT
ADINT OUT
ADINT IN
VCC
NC2
MUTE
CR
Connect GND
Echo level control
Non connect
Analog part DC bias
DA side integrator input
DA side integrator output
DA side LPF input
DAside LPF output
Mix AMP output for original tone& echo tone
Mix AMP input pin for original tone
AD side LPF input
AD side LPF output
AD side integrator output
AD side integrator input
Power supply
Non connect
Mute control signal input
CR pin for oscillator
-
I
-
-
I
O
I
O
O
I
I
O
O
I
-
-
I
-
Pin No.
Symbol
I/O
Descriptions
2.Pin function
1.Pin layout & block diagram
BU9253AS(IC902) : LPF&ECHO MIX.
