A2432
AUDIO AMPLIFIER
AiT Semiconductor Inc.
www.ait-ic.com
2X3W CLASS-D WITH DC VOLUME CONTROL AND EARPHONE OUTPUT
PIN DESCRIPTION
Top View
Pin #
Symbol
Function
1
2,3
4
OUTLP
PGNDL
OUTLN
PVDDL
MUTE
AVDD
Left Channel Positive Audio Output
Left Channel Power Ground
Left Channel Negative Audio Output
Left Channel Power Supply
5
6
Mute Control Input Pin（active low）
Analog Supply Voltage Terminal
Left Channel input
7
8
INL
9
EINL
Left earphone input
10
11
12
13
14
15
16
17
18
19
20
21
22,23
24
FADE
VOL
Input for controlling volume ramp rate (active high default)
DC volume control to set the gain
Left Earphone output
EOL
EOR
Right Earphone output
VREF
Internal analog reference
SEL
Speaker/Earphone select(Default Low: Speaker active)
Right earphone input
EINR
INR
Right Channel input
AGND
SD
Analog Power Supply Ground
Shutdown Control Input Pin (active low)
Right Channel Power Supply
Right Channel Negative Audio Output
Right Channel Power Ground
Right Channel Positive Audio Output
PVDDR
OUTRN
PGNDR
OUTRP
REV1.1
- MAY 2012 RELEASED, MAR 2017 UPDATED -
- 2 -
AITSEMI [ AiT Semiconductor ]
