Infineon MERUS MA12070P - Page 6

User Manual 6 of 24 V 1.6
2021-11-09
MERUS™ audio amp HAT ZW
User manual - KIT_40W_AMP_HAT_ZW
MERUS™ audio amp HAT description
Figure 2 MERUS
TM
audio amp HAT board overview
Table 1 shows the pin function and description of the MERUS
TM
audio amp HAT.
Table 1 MERUS
TM
audio amp HAT pin description
Pin
Name
Type
Description
1
VDD
P
5 V power supply for internal digital circuitry and boost converter
2
VDD_3V3
P
3V3 power supply from Raspberry Pi (not used)
3
VDD
P
5 V power supply for internal digital circuitry and boost converter
4
SDA
I/O
I
2
C bus serial data
5
GND
P
–
6
SCL
I/O
I
2
C bus serial clock
7
/EN
I
MA12070P enable pin
8
NC
–
–
9
/MU
I
MA12070P mute pin
10
GND
P
–
11
PI_BCLK
I
MA12070P I
2
S digital audio serial clock
12
BST_EN
I
Boost converter enable signal input
13
GND
P
–
14
NC
–
–
15
/ERROR
O
MA12070P error output pin
16
NC
–
–
17
/CLIP
O
MA12070P error output pin (not used)
18
NC
–
–
19
GND
P
–
20
NC
–
–
21
NC
–
–