LM4863-D16-T UTC [Unisonic Technologies], LM4863-D16-T Datasheet - Page 5

• Manufacturer Part Number: LM4863-D16-T
• Description: DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION
• Manufacturer: UTC [Unisonic Technologies]

LM4863
Note: Pin out shown for DIP-16. Refer to the PIN CONFIGURATION for the pin out of other packages.
To Control Pin on
Components
Headphone jack
TYPICAL APPLICATION CIRCUIT
Audio
Audio
Input
Input
EXTERNAL COMPONENTS DESCRIPTION
C
C
R
R
C
S
B
F
I
I
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
100kΩ
1µF
C
1µF
C
The inverting input resistance, along with R
pass filter with fc=1/(2πR
The input coupling capacitor blocks DC voltage at the amplifier’s input terminals. C
create a high pass filter with fc=1/(2πR
Components, for an explanation of determine the value of C
The feedback resistance, along with R
The supply bypass capacitor. Refer to the Power Supply Bypassing section for information about
properly placing and selecting the value of, this capacitor.
The capacitor, C
Proper External Components section for information concerning proper placement and selecting
C
I
I
B
V
’S value.
DD
(CB size)
0.33µF
100KΩ
20KΩ
20KΩ
20KΩ
20KΩ
R
R
C
I
R
R
B
I
F
F
10
8
6
16
11
9
1
Figure 1.Typical Audio Amplifier Application Circuit
+IN A
- IN A
+IN B
B
Bypass
Shutdown
HP-IN
-IN B
, filters the half-supply voltage present on the Bypass pin. Refer to the Selecting
GND 2,7,15
4,13
V
DD
I
C
50KΩ
V
50KΩ
DD
I
)
/2
+
C
0.1µF
TANT
+
-
AMP 1B
S
+
-
AMP 1A
20KΩ
20KΩ
Functional Description
I
, set the closed-Ioop gain.
F
I
C
+
, set the closed-loop gain. R
+
-
-
AMP 2A
AMP 2B
I
). Refer to the section. Selecting Proper External
20KΩ
20KΩ
20KΩ
20KΩ
-OUT B
-OUT A 5
+OUT B
+OUT A
12
14
3
I
.
To HP-IN Circuit
R
8Ω
L
R
8Ω
100µF
+
100µF
L
+
1kΩ
C
C
O
O
I
, along with C
CONTROL PIN
1kΩ
HEADPHONE JACK
I
, along with R
TIP
CMOS IC
I
form a high
QW-R107-027.D
RING
SLEEVE
5 of 11
I
,