MOSA MS6863TGTR Dual 2w power amplifiers / stereo headphone low voltage, pop noise free function Datasheet

MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Dual 2W Power Amplifiers / Stereo Headphone
Low Voltage, Pop Noise Free Function
FEATURES
APPLICATIONS
‧Operation range: 2.4V ~ 6.5V
‧Shutdown Current 0.4uA at 5V
‧Output power, THD+N=1%
BTL, RL=3Ω, 2.3W at 5V
BTL, RL=4Ω, 2W at 5V, 0.8W at 3.3V, 500mW at 2.7V
BTL, RL=8Ω, 1.2W at 5V, 0.5W at 3.3V, 350mW at 2.7V
SE, RL=8Ω, 300mW at 5V,130mW at 3.3V, 85mW at 2.7V
SE, RL=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
‧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
VDD
-INA
-
+INA
+
-OUT A
A1
BYPASS
+
-INB
-
+INB
+
A2
+OUT A
-OUT B
B1
SD
HP-IN
Power
Manage
+
B2
+OUT B
GND
REV 4
1/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
PIN CONFIGURATION
Symbol
Pin
Description
SHUTDOWN places the entire device in shutdown mode when held high.
TTL compatible input.
SD
1
+OUTA
3
Bridged-tied load positive output A.
-OUTA
5
Left channel output or bridged-tied load negative output A.
-INA
6
Negative input A.
+INA
8
Positive input A.
+INB
13
Positive input B.
BYPASS
14
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 CB.
-INB
15
Negative input B
-OUTB
16
Right channel output or bridged-tied load negative output B.
+OUTB
18
Bridged-tied load positive output B.
HP-IN
20
Headphone input detection.
A logical low sets BTL mode, a logical high sets SE mode.
VDD
4, 17
2, 9, 10
11, 12, 19
GND
GND (SDPR)
7
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
1
20
HP-IN
GND
2
19
GND
+OUTA
3
18
+OUTB
VDD
4
17
VDD
-OUTA
5
16
-OUTB
-INA
6
15
-INB
GND(SDPR)
7
14
BYPASS
+INA
8
13
+INB
GND
9
12
GND
GND 10
11
GND
Thermal
Pad
MS6863
REV 4
2/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
ORDERING INFORMATION
Package
Part number
Packaging Marking
Transport Media
20Pin TSSOP (lead free)
MS6863TGTR
MS6863G
2.5k Units Tape and Reel
20Pin TSSOP (lead free)
RoHS Compliance
MS6863TGU
MS6863G
75 Units Tube
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Rating
Unit
6.5
V
2000
VDD
Supply voltage
VESD
Electrostatic handling
TSTG
Storage temperature range
-65 to 150
V
℃
TA
Operating ambient temperature range
-40 to 85
℃
TJ
Maximum junction temperature
150
℃
TS
Soldering temperature, 10 seconds
260
℃
RTHJA
Thermal resistance from junction to ambient in free air
TSSOP20 (enhance thermal pad)
51
℃/W
OPERATING RATINGS
Symbol
VDD
REV 4
Parameter
Supply voltage
3/14
Min
Typ
Max
Unit
2.4
5
6.5
V
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
5V ELECTRICAL CHARACTERISTICS
Ta = 25°C, VDD=5V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
BTL Mode, VIN=0V, IO=0A
4.5
5.8
8.3
mA
SE Mode, VIN=0V, IO=0A
2.5
3.2
4.2
mA
-
0.4
2
uA
IQ
Quiescent current
ISD
Shutdown current
VSDH
Shutdown input voltage high
2.0
-
-
V
VSDL
Shutdown input voltage low
-
-
0.8
V
VHPINH
HP-IN input voltage high
0.6VDD
-
-
V
VHPINL
HP-IN input voltage low
-
-
0.4VDD
V
-
95
-
dB
-
90
-
dB
-
63
-
dB
-
55
-
dB
-
-77
-72
dB
-
0.01412
0.0251
%
98
103
-
dB
-
2.3
-
W
BTL Mode, RL = 4Ω
THD+N = 1%
-
2
-
W
BTL Mode, RL = 8Ω
THD+N = 1%
-
1.3
-
W
SE Mode, RL =8Ω
THD+N = 1%
-
300m
-
W
SE Mode, RL = 32Ω
THD+N = 1%
-
90m
-
W
CS
PSRR
THD+N
S/N
Po
REV 4
Channel separation
Power supply rejection ratio
Total harmonic distortion plus
noise
Signal-to-noise ratio
Output power
SD Mode, VSD=VDD
Hysteresis voltage
BTL Mode, RL=8Ω
Po=1W
SE Mode, RL=32Ω
Po=60mW
BTL Mode , RL=8Ω
CBP=1uF, f=100Hz
SE Mode , RL=32Ω
CBP=10uF, f=100Hz
SE mode, RL=32Ω, 75mW
SE mode, A-weighting,
75mW
BTL Mode, RL = 3Ω
THD+N = 1%
4/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
3.3 V 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
THD+N
S/N
Po
REV 4
Power supply rejection ratio
Total harmonic distortion plus
noise
Signal-to-noise ratio
Output power
Min
Typ
Max
Unit
BTL Mode, VIN=0V, IO=0A
-
5.4
-
mA
SE Mode, VIN=0V, IO=0A
-
2.8
-
mA
SD Mode, VSD=VDD
BTL Mode, RL=8Ω
Po=120mW
SE Mode, RL=32Ω
Po=25mW
BTL Mode , RL=8Ω
CBP=1uF, f=100Hz
SE Mode , RL=32Ω
CBP=10uF, f=100Hz
-
0.2
-
uA
-
83
-
dB
-
86
-
dB
-
60
-
dB
-
53
-
dB
-
-73
-68
dB
0.0238
0.0398
%
94
99
-
dB
-
0.8
-
W
BTL Mode, RL = 8Ω
THD+N = 1%
-
0.5
-
W
SE Mode, RL =8Ω
THD+N = 1%
-
130m
-
W
SE Mode, RL = 32Ω
THD+N = 1%
-
40m
-
W
SE mode, RL=32Ω, 25mW
SE mode, A-weighting
25mW
BTL Mode, RL = 4Ω
THD+N = 1%
5/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
2.7 V 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
THD+N
S/N
Po
Power supply rejection ratio
Total harmonic distortion plus
noise
Signal-to-noise ratio
Output power
Min
Typ
Max
Unit
BTL Mode, VIN=0V, IO=0A
-
5.1
-
mA
SE Mode, VIN=0V, IO=0A
-
2.7
-
mA
SD Mode, VSD=VDD
BTL Mode, RL=8Ω
Po=80mW
SE Mode, RL=32Ω
Po=15mW
BTL Mode , RL=8Ω
CBP=1uF, f=100Hz
SE Mode , RL=32Ω
CBP=10uF, f=100Hz
-
0.1
-
uA
-
83
-
dB
-
85
-
dB
-
60
-
dB
-
52
-
dB
-
-71
-66
dB
0.028
0.051
%
90
97
-
dB
-
0.5
-
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
Min
Typ
Max
Unit
-
-71
-65
dB
0.028
0.056
%
90
97
-
dB
-
0.375
-
W
BTL Mode; RL = 8Ω
THD+N = 1%
-
0.27
-
W
SE Mode; RL = 8Ω
THD+N = 1%
-
72m
-
W
SE Mode; RL = 32Ω
THD+N = 1%
-
22m
-
W
SE mode, RL=32Ω, 15mW
SE mode, A-weighting
15mW
BTL Mode, RL = 4Ω
THD+N = 1%
2.4 V ELECTRICAL CHARACTERISTICS
Ta = 25°C, VDD=2.4V, f=1kHz, BW<30kHz, unless otherwise specified.
Symbol
Parameter
Conditions
THD+N
S/N
Po
REV 4
Total harmonic distortion plus
noise
Signal-to-noise ratio
Output power
SE mode, RL=32Ω, 15mW
SE mode, A-weighting
15mW
BTL Mode, RL = 4Ω
THD+N = 1%
6/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
TYPICAL PERFORMANCE CHARACTERISTICS
Ta = 25°C, BW<30kHz, unless otherwise specified.
VDD=3.3V
BTL mode
RL=4Ω
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
VDD=3.3V
BTL mode
RL=8Ω
Po=0.5W
THD+N (%)
VDD=2.7V
BTL mode
RL=8Ω
THD+N (%)
THD+N (%)
Po=1.2W
Po=0.35W
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
Po=25mW
THD+N (%)
Po=60mW
VDD=2.7V
SE mode
RL=32Ω
THD+N (%)
VDD=5V
SE mode
RL=32Ω
THD+N (%)
Po=0.5W
THD+N vs. frequency
VDD=5V
BTL mode
RL=8Ω
REV 4
Po=0.8W
THD+N (%)
THD+N (%)
Po=2W
VDD=2.7V
BTL mode
RL=4Ω
THD+N (%)
VDD=5V
BTL mode
RL=4Ω
Po=15mW
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
THD+N vs. frequency
THD+N vs. frequency
THD+N vs. frequency
7/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
VDD=5V
BTL mode
RL=4Ω
VDD=3.3V
BTL mode
RL=4Ω
VDD=2.7V
BTL mode
RL=4Ω
THD+N (%)
f=1kHz
f=20kHz
f=20kHz
THD+N (%)
THD+N (%)
f=20kHz
f=1kHz
f=20Hz
f=1kHz
f=20Hz
f=20Hz
OUTPUT POWER (W)
OUTPUT POWER (W)
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)
THD+N vs. output power
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 4
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
8/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
CBP=10uF
VDD=5V
BTL mode
RL=8Ω
CBP=10uF
VDD=3.3V
BTL mode
RL=8Ω
CBP=10uF
VDD=2.7V
BTL mode
RL=8Ω
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
CBP=1uF
VDD=5V
SE mode
RL=32Ω
CBP=10uF
CBP=1uF
PSRR (dB)
CBP=10uF
PSRR (dB)
PSRR (dB)
CBP=10uF
VDD=3.3V
SE mode
RL=32Ω
CBP=1uF
VDD=2.7V
SE mode
RL=32Ω
FREQUENCY (Hz)
FREQUENCY (Hz)
PSRR vs. frequency
PSRR vs. frequency
PSRR vs. frequency
BTL mode
SE mode
BTL mode
RL=8Ω
Po=1W
SE mode
RL=32Ω
Po=60mW
VDD=5V
CHANNEL SEPARATION (dB)
FREQUENCY (Hz)
CHANNEL SEPARATION (dB)
QUIESCENT CURRENT (mA)
CBP=1uF
PSRR (dB)
CBP=1uF
PSRR (dB)
PSRR (dB)
CBP=1uF
BTL mode
RL=8Ω
Po=80mW
SE mode
RL=32Ω
Po=15mW
VDD=2.7V
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
FREQUENCY (Hz)
Quiescent current vs. supply voltage
Channel separation vs. frequency
Channel separation vs. frequency
REV 4
9/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
QUIESCENT CURRENT (mA)
BTL mode
SE mode
VDD=5V
HP-IN VOLTAGE (V)
Quiescent current vs. HP-IN voltage
APPLICATION INFORMATION
Application example
20K
RF
1uF
20k
-OUTA
6
-INA
RIN
8
4.7uF
1uF
20k
5
+OUTA
+INA
14
BYPASS
13
+INB
RL
8Ω
1k
VDD
VDD
4,17
GND
2,7,19
9,10,11,12
MS6863
15
3
100uF
-INB
RIN
1uF
Headphone Jack
MCU
VDD
100k
100k
1
SD
20
-OUTB
+OUTB
HP-IN
100uF
16
18
RL
8Ω
1k
0.1uF
20K
RF
DC Gain = -RF / RIN = -1
Fig.1
A audio amplifier application circuit.
SE mode and BTL mode operation
As shown in block diagram and Fig.1, in the SE mode, the MS6863 operates as high current output dual operational
amplifiers. Amplifiers A1 and B1 are independent amplifiers with an externally configured gain of AV = - RF/RIN. As
amplifiers A2 and B2 are shutdown, then the amplifiers will be a high output impedance state.
In BTL mode, the audio signal from the -INA (-INB) pin is directed to the inverting input of A1(B1). The A2(B2) is
then activated with a closed-loop gain of AV = -1 fixed by two internal resistors. The outputs of A1(B1) and A2(B2) are
then used to drive the bridged-tied load.
REV 4
10/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
HP-IN operation
The ability of the MS6863 is easily switched between dual BTL and stereo SE modes. The mode is switched by the
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. Please note that this HP-IN
voltage is a hysteresis voltage, the control voltage range is 0.4VDD to 0.6 VDD.
SHUTDOWN mode
SD places the entire device in shutdown mode when held high.
Thermal pad considerations
The thermal pad must be connected to ground. The package with thermal pad of the MS6863 requires the special
attention on thermal design. The thermal pad on the bottom of the MS6863 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.
Pop noise free example
Use extra function of pin7 and control timing.
20K
RF
1uF
20k
6
RIN
8
VINA
4.7uF
1uF
20k
-OUTA
-INA
+OUTA
+INA
14
BYPASS
13
+INB
15
-INB
VDD
100k
100k
1k
VDD
4,17
GND
2,19
9,10,11,12
MS6863
1uF
Headphone Jack
1
MCU
RL
8Ω
3
VDD
RIN
VINB
100uF
5
SD
7
20
SDPR
-OUTB
HP-IN
+OUTB
0.1uF
100uF
16
18
RL
8Ω
1k
20K
RF
Fig.2 A pop noise free application circuit.
SDPR (Pin7)
Shutdown
Delay time
0.1s
Fig.3 A control timing for pop noise free
REV 4
11/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Pop noise free in shutdown control
According to the control timing figure3, it can reduce pop noise efficiently during the shutdown control.
The timing can be applied to BTL and SE mode. The delay time is decided by the value of the bypass capacitor.
EXTERNAL DIMENSIONS
TSSOP20 (Thermal Pad)
D
D2
Detail A
E2
E1 E
C
A2
A
θ
A1
B
Symbol
e
y
Dimension in mm
Dimension in inches
Min
Nom
Max
Min
Nom
Max
A
0.80
-
1.15
0.031
-
0.045
A1
0.00
-
0.10
0.000
-
0.004
A2
0.80
1.00
1.05
0.031
0.039
0.041
b
0.19
-
0.30
0.007
-
0.012
C
0.09
-
0.20
0.004
-
0.008
D
6.40
6.50
6.60
0.252
0.256
0.260
D2
3.70
3.80
3.90
0.146
0.150
0.154
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.177
E2
2.70
2.80
2.90
0.106
0.110
0.114
e
REV 4
L
0.650 BASIC
0.026 BASIC
L
0.45
0.60
0.75
0.018
0.024
θ
0o
-
8o
0o
-
8o
y
-
-
0.10
-
-
0.004
12/14
0.030
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
DEMO BOARD
1
1
4
4
5
5
3
3
3
3
6
2
2
2
6
2
Function description
Label 1: Supply Input
Supply voltage range is 2.4V to 6.5V, the left of jump is positive and the right 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.
Label 6: Shutdown Power Preparation
It is compatible for LM4863 when jump is close. This is the same as connect to ground.
When jump is open, it can be used the extra function of the MS6863. The details please refer to application information.
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.
REV 4
13/14
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MOSA
MS6863
Dual 2W Power Amplifiers with Stereo Headphone
Circuit
JP1
1
2
+ C2
1u
C1
AVDD
R1
100K
0.1u
R2
100K
JP2
1
2
SD
JP3
1
2
-INB
JP4
1
2
C4
1u
C5
1u
+
-INA
+
R4
20K
R5
20K
R3
100K
R6
20K
R7
20K
U1
1
2
3
4
5
6
7
8
9
10
LS2
SPEAKER
C3
100u
+
SD
HP-IN
GND
GND
+OUTA +OUTB
VDD
VDD
-OUTA -OUTB
-INA
-INB
GND
BP
+INA
+INB
GND
GND
GND
GND
20
19
18
17
16
15
14
13
12
11
LS1
J5
1
2
3
SPEAKER
+ C6
100u
OUT
J1
MS6863
C7
R9
1K
+
R8
1K
HEAD PHONE
1
2
4.7u
JP6 PDP
REV 4
14/14
www.mosanalog.com
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