MOSA MS6853TGTR Mono 1.9w / stereo 300mw power amplifier low voltage operation, shutdown function Datasheet

MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
Mono 1.9W / Stereo 300mW Power Amplifier
Low Voltage Operation, Shutdown Function
FEATURES
APPLICATIONS
‧Operation range: 2.4V ~ 6.5V
‧Shutdown Current 18uA at 5V
‧Output power, THD+N=1%
BTL, RL=3Ω, 2.1W at 5V
BTL, RL=4Ω, 1.9W at 5V, 0.83W at 3.3V, 500mW at 2.7V
BTL, RL=8Ω, 1.2W at 5V, 0.54W at 3.3V, 350mW at 2.7V
SE, RL=8Ω, 300mW at 5V, 125mW at 3.3V, 85mW at 2.7V
SE, RL=32Ω, 90mW at 5V, 43mW at 3.3V, 25mW at 2.7V
‧Headphone sense
‧Unity-gain stable, pop noise free
‧Space-saving MSOP10 (enhance thermal pad), TSSOP14
‧Desktop computer’s sound card
‧Portable audio devices
‧PDA
‧Handheld games
‧Communication headsets
‧Cross-reference:
SSM2250, LM4853, LM4858
DESCRIPTION
The MS6853 is a low distortion power amplifier that can drive a set of 1.9W of continuous average power into a mono
4Ω bridged-tied load (BTL) or 2 * 90mW into stereo 32Ω single ended (SE) loads headphone. It can automatically
switch between mono 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 MS6853’s gain is set
by external gain-setting resistors.
The MS6853 has good feature for portable equipment, these features include the low voltage operation, micropower
consumption shutdown mode, enhance thermal pad and small package MSOP10, TSSOP14, make the MS6853 ideally
suited for use in portable digital audio equipments.
BLOCK DIAGRAM
VDD
L-IN
+
A1
L-OUT / BTL OUT-
BYPASS
+
R-IN
+
A2
VDD
A3
R-OUT
Mono / Stereo Mode
Switching Circuitry
VDD
GND
REV 6
BTL OUT+
Click/Pop
Reduction
Bias
HP-IN
SHUTDOWN
1/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
PIN CONFIGURATION
MSOP10 TSSOP14
Pin
Pin
1
2
Symbol
L-IN
Description
Left channel input
SHUTDOWN
2
3
SHUTDOWN places the entire device in shutdown mode when held high.
TTL compatible input.
HP-IN
3
4
Headphone input detection.
A logical low sets BTL mode, a logical high sets SE mode.
GND
4
5
Ground
R-IN
5
6
Right channel input
R-OUT
6
9
Right channel output
BY PASS
7
10
BYPASS is the cap to the voltage divider for internal mid-supply bias.
This terminal should be connected to a 0.1-μF to 10-μF capacitor CBP.
BTL OUT+
8
11
Bridged-tied load positive output
VDD
L-OUT/BTL
OUTnc
9
12
Supply voltage
10
13
Left channel output or bridged-tied load negative output
-
1,7,8,14
No connected
TSSOP14
MSOP10
L-IN
1
10
L-OUT / BTL OUT-
SHUTDOWN
2
9
VDD
HP-IN
3
8
BTL OUT +
GND
4
7
BYPASS
R-IN
5
6
R-OUT
Thermal
Pad
nc
1
14
nc
L-IN
2
13
L-OUT / BTL OUT-
SHUTDOWN
3
12
VDD
HP-IN
4
11
BTL OUT +
GND
5
10
BYPASS
R-IN
6
9
R-OUT
nc
7
8
nc
MS6853
MS6853
ORDERING INFORMATION
Package
Part number
Packaging Marking
Transport Media
10-Pin MSOP (lead free)
MS6853MGTR
6853G
3.5k Units Tape and Reel
10-Pin MSOP (lead free)
MS6853MGU
6853G
80 Units Tube
14Pin TSSOP (lead free)
MS6853TGTR
MS6853G
2.5Units Tape and Reel
14Pin TSSOP (lead free)
RoHS Compliance
MS6853TGU
MS6853G
98Units Tube
REV 6
2/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Rating
VDD
Supply voltage
VESD
Electrostatic handling
TSTG
Storage temperature range
TA
Operating ambient temperature range
TJ
Unit
6.5
V
-3000 to 3000
-65 to 150
V
℃
-40 to 85
℃
Maximum junction temperature
150
℃
TS
Soldering temperature, 10 seconds
260
℃
RTHJA
Thermal resistance from junction to ambient in free air
MSOP10 (enhance thermal pad)
TSSOP14
50
150
℃/W
OPERATING RATINGS
Symbol
VDD
Min
Typ
Max
Unit
2.4
5
6.5
V
Min
Typ
Max
Unit
BTL Mode, VIN=0V, IO=0A
-
2.4
-
mA
SE Mode, VIN=0V, IO=0A
-
2.4
-
mA
Parameter
Supply voltage
5V ELECTRICAL CHARACTERISTICS
Ta = 25°C, VDD=5V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
IQ
Quiescent current
ISD
Shutdown current
VSDH
Shutdown input voltage high
2.0
VSDL
Shutdown input voltage low
VHPINH
HP-IN input voltage high
VHPINL
HP-IN input voltage low
CS
Channel separation
PSRR
Power supply rejection ratio
SD Mode, VSD=VDD
-
V
-
-
0.8
V
-
0.75VDD
-
V
-
0.65VDD
-
V
SE Mode, RL=32Ω
100
110
-
dB
BTL Mode , RL=8Ω
CBP=1uF, f=100Hz
-
73
-
dB
SE Mode , RL=32Ω
CBP =10uF, f=100Hz
-
64
-
dB
-
-73
-68
dB
Hysteresis voltage
Total harmonic distortion plus
noise
SE mode, RL=32Ω, 60mW
S/N
Signal-to-noise ratio
SE mode, A-weighting
REV 6
Output power
uA
-
THD+N
Po
18
-
0.022
0.04
%
90
95
-
dB
BTL Mode, RL = 3Ω
THD+N = 1%
-
2.1
-
W
BTL Mode, RL = 4Ω
THD+N = 1%
-
1.9
-
W
BTL Mode, RL = 8Ω
THD+N = 1%
-
1.2
-
W
SE Mode, RL =8Ω
THD+N = 1%
-
300m
-
W
SE Mode, RL = 32Ω
THD+N = 1%
-
90m
-
W
3/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
3.3V ELECTRICAL CHARACTERISTICS
Ta = 25°C, VDD=3.3V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
IQ
Quiescent current
ISD
Shutdown current
CS
Channel separation
PSRR
Power supply rejection ratio
Min
Typ
Max
Unit
BTL Mode, VIN=0V, IO=0A
-
2.1
-
mA
SE Mode, VIN=0V, IO=0A
-
2.1
-
mA
SD Mode, VSD=VDD
SE Mode, RL=32Ω
-
12
-
uA
100
110
-
dB
BTL Mode , RL=8Ω
CBP=1uF, f=100Hz
-
73
-
dB
SE Mode , RL=32Ω
CBP =10uF, f=100Hz
-
67
-
dB
-
-70
-65
dB
THD+N
Total harmonic distortion plus
noise
SE mode, RL=32Ω, 25mW
S/N
Signal-to-noise ratio
SE mode, A-weighting
Po
Output power
0.032
0.056
%
89
94
-
dB
BTL Mode, RL = 4Ω
THD+N = 1%
-
0.83
-
W
BTL Mode, RL = 8Ω
THD+N = 1%
-
0.54
-
W
SE Mode, RL =8Ω
THD+N = 1%
-
125m
-
W
SE Mode, RL = 32Ω
THD+N = 1%
-
43m
-
W
Min
Typ
Max
Unit
BTL Mode, VIN=0V, IO=0A
-
2
-
mA
SE Mode, VIN=0V, IO=0A
-
2
-
mA
2.7V ELECTRICAL CHARACTERISTICS
Ta = 25°C, VDD=2.7V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
IQ
Quiescent current
ISD
Shutdown current
CS
Channel separation
PSRR
Power supply rejection ratio
SD Mode, VSD=VDD
SE Mode, RL=32Ω
-
7.5
-
uA
100
110
-
dB
BTL Mode , RL=8Ω
CBP =1uF, f=100Hz
-
73
-
dB
SE Mode , RL=32Ω
CBP =10uF, f=100Hz
-
67
-
dB
-
-69
-64
dB
0.036
0.063
%
87
92
-
dB
BTL Mode, RL = 4Ω
THD+N = 1%
-
0.51
-
W
BTL Mode; RL = 8Ω
THD+N = 1%
-
0.35
-
W
SE Mode; RL = 8Ω
THD+N = 1%
-
85m
-
W
SE Mode; RL = 32Ω
THD+N = 1%
-
25m
-
W
THD+N
Total harmonic distortion plus
noise
SE mode, RL=32Ω, 15mW
S/N
Signal-to-noise ratio
SE mode, A-weighting
Po
REV 6
Output power
4/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
2.4V ELECTRICAL CHARACTERISTICS
Ta = 25°C, VDD=2.4V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
THD+N
Total harmonic distortion plus
noise
SE mode, RL=32Ω, 15mW
S/N
Signal-to-noise ratio
SE mode, A-weighting
Min
Typ
Max
Unit
-
-68
-63
dB
0.0398
0.07
%
90
-
dB
0.37
-
W
86
BTL Mode, RL = 4Ω
THD+N = 1%
Po
REV 6
Output power
BTL Mode; RL = 8Ω
THD+N = 1%
-
0.27
-
W
SE Mode; RL = 8Ω
THD+N = 1%
-
67m
-
W
SE Mode; RL = 32Ω
THD+N = 1%
-
21m
-
W
5/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS
Ta = 25°C, BW<30kHz, unless otherwise specified.
VDD=3.3V
BTL mode
RL=4Ω
Po=0.8W
Po=0.5W
THD+N (%)
THD+N (%)
Po=1.9W
VDD=2.7V
BTL mode
RL=4Ω
THD+N (%)
VDD=5V
BTL mode
RL=4Ω
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
THD+N vs. frequency
VDD=3.3V
BTL mode
RL=8Ω
VDD=5V
BTL mode
RL=8Ω
VDD=2.7V
BTL mode
RL=8Ω
Po=0.5W
Po=0.3W
Po=0.34W
THD+N (%)
Po=1W
THD+N (%)
THD+N (%)
Po=1.2W
Po=0.25W
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
THD+N vs. frequency
VDD=3.3V
SE mode
RL=32Ω
VDD=5V
SE mode
RL=32Ω
VDD=2.7V
SE mode
RL=32Ω
Po=25mW
REV 6
Po=35mW
THD+N (%)
Po=60mW
Po=25mW
THD+N (%)
THD+N (%)
Po=90mW
Po=15mW
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
THD+N vs. frequency
6/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
f=20kHz
f=20kHz
VDD=5V
BTL mode
RL=4Ω
THD+N (%)
f=1kHz
THD+N (%)
THD+N (%)
f=20kHz
f=1kHz
VDD=2.7V
BTL mode
RL=4Ω
VDD=3.3V
BTL mode
RL=4Ω
f=20Hz
f=1kHz
f=20Hz
f=20Hz
OUTPUT POWER (W)
OUTPUT POWER (W)
THD+N vs. output power
THD+N vs. output power
THD+N vs. output power
f=20kHz
f=20kHz
f=1kHz
f=1kHz
f=1kHz
f=20Hz
VDD=5V
BTL mode
RL=8Ω
THD+N (%)
f=20kHz
THD+N (%)
THD+N (%)
OUTPUT POWER (W)
f=20Hz
VDD=3.3V
BTL mode
RL=8Ω
f=20Hz
VDD=2.7V
BTL mode
RL=8Ω
OUTPUT POWER (W)
OUTPUT POWER (W)
OUTPUT POWER (W)
THD+N vs. output power
THD+N vs. output power
THD+N vs. output power
f=20kHz
f=20kHz
f=1kHz
f=1kHz
THD+N (%)
f=1kHz
THD+N (%)
THD+N (%)
f=20kHz
f=20Hz
f=20Hz
f=20Hz
VDD=5V
SE mode
RL=32Ω
REV 6
VDD=3.3V
SE mode
RL=32Ω
VDD=2.7V
SE mode
RL=32Ω
OUTPUT POWER (W)
OUTPUT POWER (W)
OUTPUT POWER (W)
THD+N vs. output power
THD+N vs. output power
THD+N vs. output power
7/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
CBP=10uF
CBP=10uF
CBP=1uF
VDD=5V
SE mode
RL=32Ω
PSRR (dB)
PSRR (dB)
PSRR (dB)
CBP=10uF
CBP=1uF
CBP=1uF
VDD=2.7V
SE mode
RL=32Ω
VDD=3.3V
SE mode
RL=32Ω
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
CBP=1uF
CBP=1uF
CBP=10uF
VDD=5V
BTL mode
RL=8Ω
PSRR (dB)
CBP=10uF
PSRR (dB)
PSRR (dB)
CBP=10uF
CBP=1uF
VDD=3.3V
BTL mode
RL=8Ω
VDD=2.7V
BTL mode
RL=8Ω
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
VDD=5V
Po=90mW
VDD=3.3V
Po=40mW
VDD=2.7V
Po=25mW
OUTPUT MODE
QUIESCENT CURRENT (mA)
CHANNEL SEPARATION (dB)
VIN=0V
No load
SE mode
RL=32Ω
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
HP-IN VOLTAGE (V)
Quiescent current vs. supply voltage
Channel separation vs. frequency
Output mode vs. HP-IN voltage
REV 6
8/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
APPLICATION INFORMATION
Basic application example
20k
RF
MS6853
1uF
100uF
20k
RIN
VDD
VINL
L-IN
L-OUT/BTL OUT-
100k
VDD
VDD
SHUTDOWN
1uF
100k
VDD
HP-IN
RL
8Ω
1k
BTL OUT+
Headphone Jack
1uF
GND
1uF
BYPASS
100uF
20k
R-IN
R-OUT
RIN
1k
VINR
20k
RF
DC Gain = -RF / RIN = -1
Fig.1
A audio amplifier application circuit. (connected to R-OUT)
20k
RF
MS6853
1uF
100uF
20k
RIN
VDD
VINL
L-IN
L-OUT/BTL OUT-
100k
VDD
VDD
SHUTDOWN
1uF
VDD
1uF
100k
100k
HP-IN
RL
8Ω
1k
BTL OUT+
0.1uF
Headphone Jack
1uF
GND
BYPASS
R-IN
R-OUT
100uF
20k
RIN
1k
VINR
VDD
20k
RF
100k
DC Gain = -RF / RIN = -1
Fig.2
REV 6
A audio amplifier application circuit. (connected to L-OUT)
9/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
SE mode and BTL mode operation
As shown in block diagram and Fig.1, in the SE mode, the MS6853 operates as a high current output dual op amp.
Amplifier A1 and A3 are independent amplifiers with an externally configured gain of AV = - RF/RIN. Amplifier A2 is
shut down to a high output impedance state.
In BTL mode, A3 is shutdown to a high impedance state. The audio signal from the R-IN pin is directed to the inverting
input of A1. As a result, the L-IN and R-IN audio signals, VINL and VINR, are summed together at the input of A1. A2 is
then activated with a closed-loop gain of AV = -1 fixed by two internal resistors. The outputs of A1 and A2 are then
used to drive the mono bridged-tied load.
HP-IN operation
The ability of the MS6853 is easily switched between mono BTL and stereo SE modes. The mode is switched by
headphone control pin, HP-IN. A logic-high activates the SE mode when a set of headphone plugged into the system,
on the other hand, a logical-low to HP-IN activates the BTL mode when no headphones.
HP-IN pin is a hysteresis control input, the hysteresis range is from 0.65VDD to 0.75VDD. In the case of 5V VDD for
MS6853 (the hysteresis voltage for HP-IN is from 3.25V to 3.75V) and 3V VDD for the controlling device, such as
MCU, a simple level shift circuit is needed, as shown below.
5V
100k
VDD=3V
VDD=5V
HP-IN
MS6853
pMOS
MCU
Thermal pad considerations
The thermal pad must be connected to ground. The package with thermal pad of the MS6853 requires special attention
on thermal design. The thermal pad on the bottom of the MS6853 should be soldered down to a copper pad on the
circuit board. Heat can be conducted away from the thermal pad through the copper plane to ambient. If the copper
plane is not on the top surface of the circuit board, 9 vias of 13 mil or smaller in diameter should be used to thermally
couple the thermal pad to the bottom plane. For good thermal conduction, the vias must be plated through and solder
filled.
REV 6
10/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
EXTERNAL DIMENSIONS
TSSOP14
D
Dimension in mm
Symbol
A
A1
A2
b
C
D
E
E1
E1 E
e
L
θ
Min
Nom
Dimension in inches
Max
0.05
0.80
0.19
0.09
4.90
4.3
1.20
0.15
1.00
1.05
0.30
0.20
5.00
5.10
6.40
4.4
4.5
0.650 BASIC
0.45
0.60
0.75
0o
8o
Min
Nom
Max
0.047
0.002
0.006
0.031
0.039
0.041
0.007
0.012
0.0035
0.008
0.193
0.197
0.201
0.026
0.170
0.173
0.177
0.026 BASIC
0.0177 0.024 0.0295
0o
8o
A2 A
θ
e
A1
b
L
C
MSOP10 (Thermal Pad)
Thermal Pad
Symbol
A
A1
A2
b
c
D
H
E
W1
H
W2
E
e
L
θ
W1
W2
Dimension in mm
Min
Nom
0.81
0.05
0.76
0.15
0.13
2.90
4.70
2.90
0.92
0.86
0.20
0.15
3.00
4.90
3.00
0.50 BASIC
0.40
0.53
0o
1.27
1.02
-
Dimension in inches
Max
Min
1.12
0.15
0.97
0.30
0.23
3.10
5.10
3.10
0.032
0.002
0.030
0.006
0.005
0.114
0.185
0.114
0.66
6o
1.52
1.27
Nom
Max
0.036
0.044
0.006
0.034
0.038
0.008
0.012
0.006
0.009
0.118
0.122
0.193
0.201
0.118
0.122
0.02 BASIC
0.016
0.021
0.026
0o
6o
0.050
0.060
0.040
0.050
D
A
A2
θ
A1
REV 6
e
B
L
C
11/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
TAPE AND REEL (Unit : mm)
MSOP10
2.0
0.30
0.05
0.05
1.5+0.1/-0.0 DIA
4.0
1.75
0.3R MAX
5.5
0.05
12.0 0.3
5.4
3.0
3.6
8.0
1.5 MIN
6.9
0.5 Radius Typical
2.0 1.7
REV 6
12/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
DEMO BOARD
MSOP10 (Thermal Pad)
1
3
2
4
5
TSSOP14
REV 6
13/14
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MOSA
MS6853
Mono 1.9W / Stereo 300mW Power Amplifier
Function description
Label 1: Supply Input
Supply voltage range is 2.7V to 6.5V, the right of jump is positive, the left of jump is negative.
Label 2: Signal Input
Connected to audio signals.
Label 3: Speaker Output
Connected to speaker with 8ohm or 4 ohm
Label 4: Headphone Jack
Used 3.5mm diameter of headphone with 32ohm
Label 5: Shutdown Control
System is active mode when jump is close, system enters shutdown mode when jump is open.
SE mode and BTL mode operation
The headphone controls operational mode. System enters SE mode when headphone jack is empty.
When a set of headphone plugged into the jack, the system switched to BTL mode.
Circuit
JP3
1
2
Lin
JP4
1
2
C1
1uF
C2
1uF
+
Rin
+
R1
20K
R2
20K
JP1
C7
0.1uF
+
C3
1uF
R5
1
2
SHUTDOWN
20K
100K
+
100K
JP2
C5
R3
R6
100uF
LS1
U1
1
2
3
4
5
L_IN L_O/B_O
SD
VDD
HP_IN B_O+
GND
BP
R_IN
R_O
10
9
8
7
6
R7
1K
JP5
SPEAKER
C4
J1
+
1
2
VDD
MS6853
OUTPUT
1uF
R4
20K
1
2
3
C6
HEADPHONE
+
100uF
R8
1K
REV 6
14/14
www.mosanalog.com
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