MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Dual 2W Power Amplifiers / Stereo Headphone
Low Voltage, Pop Noise Free Function
FEATURES
‧Operation
range: 2.4V ~ 6.5V
‧Shutdown
Current 0.4uA at 5V
‧Output
power, THD+N=1%
BTL, R
L
=3Ω, 2.3W at 5V
BTL, R
L
=4Ω, 2W at 5V, 0.8W at 3.3V, 500mW at 2.7V
BTL, R
L
=8Ω, 1.2W at 5V, 0.5W at 3.3V, 350mW at 2.7V
SE, R
L
=8Ω, 300mW at 5V,130mW at 3.3V, 85mW at 2.7V
SE, R
L
=32Ω, 90mW at 5V, 40mW at 3.3V, 25mW at 2.7V
‧Headphone
sense
‧Unity-gain
stable
‧pop
noise free control (extra function for pin7)
‧Space-saving
TSSOP20, enhance thermal pad
APPLICATIONS
‧Desktop
computer’s sound card
‧Portable
audio devices
‧Portable
digital TV
‧MP3
peripheral
‧Handheld
games
‧Cross-reference:
LM4863
DESCRIPTION
The MS6863 is a low distortion power amplifier that can drive 2*2W of continuous average power into a dual 4Ω
bridged-tied load (BTL) or 2 * 90mW into stereo 32Ω single ended (SE) loads headphone.
It
can automatically switch
between dual BTL and stereo SE modes utilizing a headphone sense pin. The BTL configuration eliminates the need
for external coupling capacitors on the output in most applications. The unity gain stable MS6863’s gain is set by
external gain-setting resistors.
The MS6863 has good feature for portable equipment, these features include the low voltage operation, micropower
consumption shutdown mode, enhance thermal pad and small package TSSOP20, make the MS6863 ideally suited for
use in portable audio equipments. The MS6863 has an extra selection for pin7 to achieve pop noise free in shutdown
control.
BLOCK DIAGRAM
V
DD
-INA
+INA
-
+
-OUT A
A1
BYPASS
-
+
A2
+OUT A
-INB
+INB
SD
HP-IN
Power
Manage
-
+
B1
-OUT B
-
+
B2
+OUT B
GND
REV 4
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MOSA
PIN CONFIGURATION
Symbol
SD
+OUTA
-OUTA
-INA
+INA
+INB
BYPASS
-INB
-OUTB
+OUTB
HP-IN
VDD
GND
GND (SDPR)
Pin
1
3
5
6
8
13
14
15
16
18
20
4, 17
2, 9, 10
11, 12, 19
7
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Description
SHUTDOWN places the entire device in shutdown mode when held high.
TTL compatible input.
Bridged-tied load positive output A.
Left channel output or bridged-tied load negative output A.
Negative input A.
Positive input A.
Positive input B.
BYPASS is a capacitor to the voltage divider for the internal mid-supply bias.
This terminal should be connected to a 0.1-μF to 10-μF capacitor C
B
.
Negative input B
Right channel output or bridged-tied load negative output B.
Bridged-tied load positive output B.
Headphone input detection.
A logical low sets BTL mode, a logical high sets SE mode.
Supply voltage
Ground
Connected to ground, it is compatible for LM4863
SDPR: Shutdown Power Preparation.
Pop noise free in shutdown control, please refer to application information
TSSOP20
SD
GND
+OUTA
VDD
-OUTA
-INA
GND(SDPR)
+INA
GND
1
2
3
4
5
6
7
8
9
Thermal
Pad
20
19
18
17
16
15
14
13
12
11
MS6863
HP-IN
GND
+OUTB
VDD
-OUTB
-INB
BYPASS
+INB
GND
GND
GND
10
REV 4
2/14
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MOSA
ORDERING INFORMATION
Package
20Pin TSSOP (lead free)
20Pin TSSOP (lead free)
RoHS Compliance
Part number
MS6863TGTR
MS6863TGU
MS6863G
MS6863G
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Packaging Marking
Transport Media
2.5k Units Tape and Reel
75 Units Tube
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
ESD
T
STG
T
A
T
J
T
S
R
THJA
Supply voltage
Electrostatic handling
Storage temperature range
Operating ambient temperature range
Maximum junction temperature
Soldering temperature, 10 seconds
Thermal resistance from junction to ambient in free air
TSSOP20 (enhance thermal pad)
Parameter
Rating
6.5
2000
-65 to 150
-40 to 85
150
260
51
Unit
V
V
℃
℃
℃
℃
℃/W
OPERATING RATINGS
Symbol
V
DD
Supply voltage
Parameter
Min
2.4
Typ
5
Max
6.5
Unit
V
REV 4
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MOSA
5V ELECTRICAL CHARACTERISTICS
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Ta = 25°C, V
DD
=5V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
I
Q
I
SD
V
SDH
V
SDL
V
HPINH
V
HPINL
CS
Quiescent current
Shutdown current
Shutdown input voltage high
Shutdown input voltage low
HP-IN input voltage high
HP-IN input voltage low
Channel separation
Hysteresis voltage
BTL Mode, R
L
=8Ω
Po=1W
SE Mode, R
L
=32Ω
Po=60mW
BTL Mode , R
L
=8Ω
C
BP
=1uF, f=100Hz
SE Mode , R
L
=32Ω
C
BP
=10uF, f=100Hz
SE mode, R
L
=32Ω, 75mW
SE mode, A-weighting,
75mW
BTL Mode, R
L
= 3Ω
THD+N = 1%
BTL Mode, R
L
= 4Ω
THD+N = 1%
Po
Output power
BTL Mode, R
L
= 8Ω
THD+N = 1%
SE Mode, R
L
=8Ω
THD+N = 1%
SE Mode, R
L
= 32Ω
THD+N = 1%
BTL Mode, V
IN
=0V, I
O
=0A
SE Mode, V
IN
=0V, I
O
=0A
SD Mode, V
SD
=V
DD
Min
4.5
2.5
-
2.0
-
0.6V
DD
-
-
-
-
-
-
-
98
-
-
-
-
-
Typ
5.8
3.2
0.4
-
-
-
-
95
90
63
55
-77
0.01412
103
2.3
2
1.3
300m
90m
Max
8.3
4.2
2
-
0.8
-
0.4V
DD
-
-
-
-
-72
0.0251
-
-
-
-
-
-
Unit
mA
mA
uA
V
V
V
V
dB
dB
dB
dB
dB
%
dB
W
W
W
W
W
PSRR
Power supply rejection ratio
Total harmonic distortion plus
noise
Signal-to-noise ratio
THD+N
S/N
REV 4
4/14
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MOSA
3.3 V ELECTRICAL CHARACTERISTICS
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Ta = 25°C, V
DD
=3.3V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
I
Q
I
SD
CS
Quiescent current
Shutdown current
Channel separation
BTL Mode, V
IN
=0V, I
O
=0A
SE Mode, V
IN
=0V, I
O
=0A
SD Mode, V
SD
=V
DD
BTL Mode, R
L
=8Ω
Po=120mW
SE Mode, R
L
=32Ω
Po=25mW
BTL Mode , R
L
=8Ω
C
BP
=1uF, f=100Hz
SE Mode , R
L
=32Ω
C
BP
=10uF, f=100Hz
SE mode, R
L
=32Ω, 25mW
SE mode, A-weighting
25mW
BTL Mode, R
L
= 4Ω
THD+N = 1%
BTL Mode, R
L
= 8Ω
THD+N = 1%
SE Mode, R
L
=8Ω
THD+N = 1%
SE Mode, R
L
= 32Ω
THD+N = 1%
Min
-
-
-
-
-
-
-
-
94
-
-
-
-
Typ
5.4
2.8
0.2
83
86
60
53
-73
0.0238
99
0.8
0.5
130m
40m
Max
-
-
-
-
-
-
-
-68
0.0398
-
-
-
-
-
Unit
mA
mA
uA
dB
dB
dB
dB
dB
%
dB
W
W
W
W
PSRR
Power supply rejection ratio
Total harmonic distortion plus
noise
Signal-to-noise ratio
THD+N
S/N
Po
Output power
REV 4
5/14
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Wireless Connectivity
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