SGM4996
1.3W Fully Differential Audio Power
Amplifier with Selectable Shutdown
GENERAL DESCRIPTION
The SGM4996 is a fully differential audio power amplifier
that is designed for portable communication device
applications and demanding applications in mobile
phones. It is capable of delivering 1.3W of continuous
average power into an 8Ω load with typically 1%
distortion (THD+N) from a 5V battery voltage. It operates
from 2.5V to 5.5V power supply.
The SGM4996 features a low power consumption
shutdown mode. To be flexible, shutdown may be
enabled by either a logic high or low depending on the
voltage applied on the SD MODE pin. Additionally, the
SGM4996
features
an
internal
thermal
shutdown
protection mechanism.
The SGM4996 contains advanced pop/click circuitry, with
a minimal amount of external components. All these
features make SGM4996 ideal for wireless handsets and
other low voltage applications where minimal power
consumption is a primary requirement.
The
SGM4996
is
available
in
Green
MSOP-10,
Portable Systems
Wireless Handsets
Mobile Phone
Handheld Computers
PDAs
GPS
FEATURES
Fully Differential Amplifier
Excellent PSRR: Direct Connection to Battery
1.3W into 8Ω Load from 5V Supply at
THD+N = 1% (TYP)
2.5V to 5.5V Operation
Low Shutdown Current
Improved Pop/Click Circuitry
Support Single-Ended or Differential Input
Thermal Overload Protection Circuitry
No Output Coupling Capacitors, Bootstrap
Capacitors Required
External Gain Configuration Capability
-40℃ to +85℃ Operating Temperature Range
Green MSOP-10, TDFN-3×3-10L and MSOP-8
Packages
APPLICATIONS
TDFN-3×3-10L and MSOP-8 packages. It operates over
an ambient temperature range of -40℃ to +85℃.
SG Micro Corp
www.sg-micro.com
REV. A. 2
SGM4996
PACKAGE/ORDERING INFORMATION
MODEL
ORDER NUMBER
SGM4996YMS10G/TR
SGM4996
SGM4996YD10G/TR
SGM4996YMS8G/TR
1.3W Fully Differential Audio Power
Amplifier with Selectable Shutdown
PACKAGE
DESCRIPTION
MSOP-10
TDFN-3×3-10L
MSOP-8
PACKAGE
OPTION
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
MARKING
INFORMATION
SGM4996YMS10
SGM4996D
SGM4996YMS8
ABSOLUTE MAXIMUM RATINGS
Supply Voltage........................................................................6V
Input Voltage...............................................-0.3V to (V
CC
) + 0.3V
Storage Temperature Range..............................-65℃ to +150℃
Junction Temperature........................................................150℃
Operating Temperature Range............................-40℃ to +85℃
Lead Temperature Range (Soldering 10 sec)
...........................................................................................260℃
ESD Susceptibility
HBM..................................................................................4000V
MM......................................................................................400V
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay
attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because
very small parametric changes could cause the device not to
meet its published specifications.
SGMICRO reserves the right to make any change in circuit
design, specification or other related things if necessary without
notice at any time. Please contact SGMICRO sales office to get
the latest datasheet.
NOTE:
Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. These
are stress ratings only, and functional operation of the device at
these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
SG Micro Corp
www.sg-micro.com
2
SGM4996
1.3W Fully Differential Audio Power
Amplifier with Selectable Shutdown
PIN CONFIGURATIONS
(TOP VIEW)
SGM4996YD10G
SD SELECT
IN-
SD MODE
IN+
BYPASS
1
2
3
4
5
10
9
8
7
6
VO+
V
CC
NC
GND
VO-
TDFN-3×3-10L
GND
SGM4996YMS10G
SD SELECT
IN-
SD MODE
IN+
BYPASS
1
2
3
4
5
MSOP-10
SGM4996YMS8G
10
9
8
7
6
VO+
V
CC
NC
GND
VO-
IN+
IN-
3
4
MSOP-8
SHDN
BYPASS
1
2
8
7
6
5
VO-
GND
V
CC
VO+
SG Micro Corp
www.sg-micro.com
3
SGM4996
1.3W Fully Differential Audio Power
Amplifier with Selectable Shutdown
ELECTRICAL CHARACTERISTICS
(The following AC specifications apply for 8Ω load, A
V
= 1V/V, T
A
= +25℃, unless otherwise specified.)
PARAMETER
Supply Voltage
Shutdown Current
SYMBOL
V
CC
I
SD
SDM = SDS = GND or
SDM = SDS = V
CC
V
IN
= 0V, I
O
= 0A
V
CC
= 5.0V, No Load
V
CC
= 5.0V, 8Ω Load
Quiescent Power Supply Current
I
Q
V
IN
= 0V
V
CC
= 3.6V, No Load
V
CC
= 3.6V, 8Ω Load
V
CC
= 2.6V, No Load
V
CC
= 2.6V, 8Ω Load
SD SELECT Threshold High
SD SELECT Threshold Low
SD MODE Threshold High
SD MODE Threshold Low
V
SDSIH
V
SDSIL
V
SDMIH
V
SDMIL
V
CC
= 5.0V
f = 1kHz,
THD+N = 1%
Output Power (8Ω)
P
O
f = 1kHz,
THD+N = 10%
V
CC
= 3.6V
V
CC
= 3.0V
V
CC
= 2.6V
V
CC
= 5.0V
V
CC
= 3.6V
V
CC
= 3.0V
V
CC
= 2.6V
Total Harmonic Distortion + Noise
THD+N
P
O
= 0.6Wrms, f = 1kHz, V
CC
= 5.0V
V
CC
= 5.0V
V
RIPPLE
= 200mV
P-P
C
B
= 1µF, f = 217Hz
Power Supply Rejection Ratio
(1) (2)
CONDITIONS
V
CC
= 5.0V
V
CC
= 3.6V
V
CC
= 2.6V
MIN
2.5
TYP
0.01
0.01
0.01
MAX
5.5
2
UNITS
V
μA
Output Offset Voltage
V
OS
-10
2
4.70
4.73
3.85
3.87
3.20
3.21
10
7.5
8
6
mV
mA
1.2
0.4
1.2
0.4
1.30
0.66
0.46
0.33
1.60
0.82
0.57
0.41
0.013
-85
-81
-64
-54
-83
-80
-64
-54
-81
68
53
45
40
ms
dB
dB
%
W
V
V
CC
= 3.6V
V
CC
= 3.0V
V
CC
= 2.6V
V
CC
= 5.0V
V
CC
= 3.6V
V
CC
= 3.0V
V
CC
= 2.6V
PSRR
V
RIPPLE
= 200mV
P-P
C
B
= 1µF, f = 1kHz
Common Mode Rejection Ratio
(2)
CMRR
f = 217Hz, V
CM
= 200mV
P-P
, V
CC
= 5.0V
V
CC
= 5.0V
V
CC
= 3.6V
V
CC
= 3.0V
V
CC
= 2.6V
Wake-Up Time
T
WU
C
B
= 1μF
NOTES:
1. 10Ω terminated input.
2. PSRR and CMRR are affected by the matching between gain-setting resistor ratios.
SG Micro Corp
www.sg-micro.com
4
SGM4996
At T
A
= +25℃, A
V
= 1, f = 1kHz, C
B
= 1µF, unless otherwise noted.
THD+N vs. Output Power
10
V
CC
= 5V
R
L
= 8Ω
BW < 80kHz
1.3W Fully Differential Audio Power
Amplifier with Selectable Shutdown
TYPICAL PERFORMANCE CHARACTERISTICS
THD+N vs. Output Power
10
V
CC
= 3.6V
R
L
= 8Ω
BW < 80kHz
1
THD+N (%)
1
THD+N (%)
0.1
1
10
0.1
0.1
0.01
0.01
0.001
0.01
0.001
0.01
0.1
1
10
Output Power (W)
Output Power (W)
Power Dissipation vs. Output Power
1
Power Dissipation (W)
THD+N vs. Output Power
10
V
CC
= 2.6V
R
L
= 8Ω
BW < 80kHz
1
THD+N (%)
0.8
0.6
0.4
0.2
0
V
CC
= 5V
R
L
= 8Ω
BW < 80kHz
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
0.1
0.01
0.001
0.01
0.1
1
10
Output Power (W)
Output Power (W)
Power Dissipation vs. Output Power
0.4
Power Dissipation (W)
Power Dissipation (W)
0.2
Power Dissipation vs. Output Power
0.3
0.15
0.2
V
CC
= 3.6V
R
L
= 8Ω
BW < 80kHz
0
0.2
0.4
Output Power (W)
0.6
0.8
0.1
V
CC
= 2.6V
R
L
= 8Ω
BW < 80kHz
0
0.1
0.2
0.3
0.4
0.5
0.1
0.05
0
0
Output Power (W)
SG Micro Corp
www.sg-micro.com
5
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