Data Sheet
STEREO 2W AUDIO POWER AMPLIFIER
Pin Description
Pin Number
1, 8, 14, 20, 23
2
3
4
5
6, 16, 27
7
9
10
11
12
13
15
17
18
19
21
22
24
25
26
28
Pin Name
GND
SHUTDOWN
GAIN SELECT
MODE
MUTE
V
DD
DC VOL
RIGHT DOCK
RIGHT IN
BEEP IN
LEFT IN
LEFT DOCK
LEFT OUT+
LEFT OUT-
LEFT GAIN 2
LEFT GAIN 1
HP SENSE
BYPASS
RIGHT GAIN 1
RIGHT GAIN 2
RIGHT OUT-
RIGHT OUT+
Ground for circuitry.
Shutdown mode control signal input, place entire IC in shutdown mode when held
high, I
DD
=0.7µA.
Gain select input pin, logic high will switch the amplifier to external gain mode, and
logic low will switch to internal unity gain.
Mode select input pin, fixed gain when logic L and gain adjustable mode when
logic H.
Mute control input pin, active H.
Supply voltage input pin.
Volume control function input pin.
Right docking output pin.
Right channel audio input pin.
Beep signal input pin.
Left channel audio input pin.
Left docking output pin.
Left channel positive output pin.
Left channel negative output pin.
Connect pin 2 of the external gain setting resistor for left channel.
Connect pin 1 of the external gain setting resistor for left channel.
Headphone sense control pin.
Bypass pin.
Connect pin 1 of the external gain setting resistor for right channel.
Connect pin 2 of the external gain setting resistor for right channel.
Right channel negative output pin.
Right channel positive output pin.
Function
AA4002
Sep. 2006 Rev. 1. 1
3
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
