sAPPLICATION CIRCUIT
NJM2155
C11
C12
4.7µ +
3.3 n
Frequency Control
VR1
C17
Low
High
C13
33n
C14
C15 R5
1k
4.7µ + 0.1µ +
5k
Boost
Control
VR2
R6
27k
0.2 2µ
C16
0.2 2µ
R7
Max Min
56k
50k
24 23 22 21 20 19 18 17 16 15 14 13
NJM2155
1
2
3
C1 +
C2
4.7µ
3.3 n
4
5
6
7
8
9 10 11 12
C3
C4 + C5 + R1 C6 +R2 C7 +R3 C8 +R4 C9 + C10 +
33n
4.7µ
10µ
10µ
10µ
10µ
10µ
10µ
10k
10k
10k
10k
V+
V+ GND V+ GND V+ GND V+ GND
∗1) C2, C3, C12 and C13 decide the BBE characteristics. Use the specified value.
∗2) C16, C17, R5, R6 and R7 decide the Mach3Bass characteristics. Use the specified value.
∗3) VR1 controls Center Frequency for Mach3Bass.
∗4) VR2 controls Boost Gain for Mach3Bass.
-5-