PIN DESCRIPTION
Number
Name
I/O1
1
AVDD1
–
2
VREF1
O
3
AIN1
I
4
AIN2
I
5
AIN3
I
6
AIN4
I
7
AIN5
I
8
AIN6
I
9
AVSS1
–
10
DVDD
–
MDT (AM)
I
11
SDA (BM)
I/O
12
RSTN
Ip
MLEN (AM)
Ip
13
NC (BM)
–
MCK (AM)
I
14
SCL (BM)
I
15
DVSS
–
16
AVSS2
–
17
AOUT6
O
18
AOUT5
O
19
AOUT4
O
20
AOUT3
O
21
AOUT2
O
22
AOUT1
O
23
VREF2
O
24
AVDD2
–
1. Ip = input pin with pull-up
2. A = analog, D= digital
SM6452AM/BM
A/D2
Description
A
Analog supply 1
A
Reference voltage source capacitor connection (0.5AV D D 1 )
A
Channel 1 audio input
A
Channel 2 audio input
A
Channel 3 audio input
A
Channel 4 audio input
A
Channel 5 audio input
A
Channel 6 audio input
A
Analog ground 1
D
Digital supply
D
Microcontroller data input
D
I2C bus serial data input and acknowledge (ACK) signal output
D
System reset input (active LOW -level)
D
Microcontroller latch enable input
–
No connection
D
Microcontroller clock input
D
I2C bus clock input
D
Digital ground
A
Analog ground 2
A
Channel 6 audio output
A
Channel 5 audio output
A
Channel 4 audio output
A
Channel 3 audio output
A
Channel 2 audio output
A
Channel 1 audio output
A
Reference voltage source capacitor connection (0.5AV D D 2 )
A
Analog supply 2
NIPPON PRECISION CIRCUITS—3