1-28 (No.49839)
SECTION 4
Description of major ICs
4.1
BA3220FV-X (IC301,IC281) : Line out amp
• Pin layout
• Block diagram
1
7
8
3220
14
+ -
+ -
- +
+ -
-
-
+
+
REFR
REFL
FILTER
8
9
10
11
12
13
14
1
2
3
4
5
6
7
INR
NFR
FIL
NFL
CL+
Vcc
INL
CL-
LGND
OUTL
OUTR
RGND
CR-
CR+