SGM4895
1.3W Fully Differential
Audio Power Amplifier
GENERAL DESCRIPTION
FEATURES
The SGM4895 is a fully differential audio power
• Supply Voltage Range: 2.5V to 5.5V
amplifier which operates from 2.5V to 5.5V power
• 1.3W into 8Ω Load from 5V Supply at
supply. It can deliver 1.3W into a 8Ω load from 5V
supply at THD+N = 1%. It is designed for portable
applications.
The SGM4895 has pop/click suppression circuitry, low
power consumption shutdown mode and thermal
shutdown protection.
Bootstrap capacitors or output coupling capacitors are
not needed.
THD+N = 1% (TYP)
• 1.6W into 4Ω Load from 5V Supply at
THD+N = 1% (TYP, SGM4895YDB8 Only)
• High PSRR
• Low Shutdown Current
• Pop/Click Suppression Circuitry
• Support Single-Ended or Differential Input
• Thermal Overload Protection Circuitry
• External Gain Configuration Capability
The SGM4895 is available in Green TDFN-3×3-8L and
• -40℃ to +85℃ Operating Temperature Range
MSOP-8 (Exposed Pad) packages. It operates over an
• Available in Green MSOP-8 (Exposed Pad) and
ambient temperature range of -40℃ to +85℃.
TDFN-3×3-8L Packages
APPLICATIONS
PDAs
GPS
Mobile Phones
Wireless Handsets
Handheld Computers
Portable Systems
SG Micro Corp
www.sg-micro.com
NOVEMBER 2020 – REV. C. 3
1.3W Fully Differential
Audio Power Amplifier
SGM4895
PACKAGE/ORDERING INFORMATION
MODEL
SGM4895
PACKAGE
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
TDFN-3×3-8L
-40℃ to +85℃
SGM4895YDB8/TR
MSOP-8
(Exposed Pad)
-40℃ to +85℃
SGM4895YPMS8/TR
PACKAGE
MARKING
SGM
4895DB
XXXXX
SGM4895
YPMS8
XXXXX
PACKING
OPTION
Tape and Reel, 3000
Tape and Reel, 4000
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
XXXXX
Vendor Code
Date Code - Week
Date Code - Year
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage................................................................... 6V
Input Voltage Range ............................... -0.3V to (V+) + 0.3V
Typical Thermal Resistance
TDFN-3×3-8L, θJA ...................................................... 72℃/W
Junction Temperature .................................................+150℃
Storage Temperature Range......................... -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................+260℃
ESD Susceptibility
HBM ............................................................................. 2000V
MM ................................................................................. 400V
OVERSTRESS CAUTION
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range ........................................ 2.5V to 5.5V
Operating Temperature Range ....................... -40℃ to +85℃
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged if ESD protections are
not considered carefully. 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 even small parametric changes could cause the
device not to meet the published specifications.
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
PIN CONFIGURATIONS
(TOP VIEW)
SHDN
1
Bypass
2
IN2
3
IN1
4
GND
TDFN-3×3-8L
SG Micro Corp
www.sg-micro.com
(TOP VIEW)
8
VO2
SHDN
1
8
VO2
7
GND
Bypass
2
7
GND
6
V+
IN2
3
6
V+
5
VO1
IN1
4
5
VO1
GND
MSOP-8 (Exposed Pad)
NOVEMBER 2020
2
1.3W Fully Differential
Audio Power Amplifier
SGM4895
ELECTRICAL CHARACTERISTICS
(The following AC specifications apply for 8Ω load, AV = 1V/V, TA = +25℃, unless otherwise specified.)
PARAMETER
SYMBOL
Supply Voltage
V+
Shutdown Current
ISD
Output Offset Voltage
VOS
CONDITIONS
MIN
VIN = 0V, VSHDN = GND
0.01
IQ
Shutdown Voltage Input High
VSDIH
Shutdown Voltage Input Low
VSDIL
2.5
10
2.0
10
PO
f = 1kHz
THD+N = 10%
SGM4895YDB8 only
THD+N
Common Mode Rejection Ratio
Wake-Up Time
TWU
V+ = 5.0V, 8Ω Load
4.75
8.00
V+ = 3.3V, No Load
3.87
5.80
V+ = 3.3V, 8Ω Load
3.90
6.00
V+ = 2.6V, No Load
3.20
V+ = 2.6V, 8Ω Load
3.22
V+ = 5.0V
1.30
V+ = 3.6V
0.65
V+ = 3.0V
0.45
V+ = 2.6V
0.34
V+ = 5.0V
1.60
V+ = 3.6V
0.82
V+ = 3.0V
0.55
V+ = 2.6V
0.42
V+ = 5.0V
1.60
V+ = 3.6V
1.00
V+ = 3.0V
0.65
V+ = 2.6V
0.50
V+ = 5.0V
2.20
V+ = 3.6V
1.25
V+ = 3.0V
0.85
V+ = 2.6V
V+ = 3.6V
-80
V+ = 3.0V
-73
V+ = 2.6V
-65
V+ = 5.0V
-83
V+ = 3.6V
-80
V+ = 3.0V
-73
V+ = 2.6V
-65
f = 217Hz, VCM = 200mVP-P, V+ = 5.0V
-76
V+ = 5.0V
50
V+ = 3.6V
42
V+ = 3.0V
37
V+ = 2.6V
32
CB = 1μF
mA
V
W
W
0.60
0.015
-83
PSRR
CMRR
7.50
V+ = 5.0V
f = 1kHz
(2)
4.70
PO = 0.6Wrms, f = 1kHz, V+ = 5.0V
f = 217Hz
Power Supply Rejection Ratio (1) (2)
V+ = 5.0V, No Load
0.4
f = 1kHz
THD+N = 1%
SGM4895YDB8 only
mV
2.0
1.2
f = 1kHz
THD+N = 10%
Total Harmonic Distortion + Noise
μA
-10
PO
Output Power (4Ω)
V
1
-10
VIN = 0V, IO = 0A,
VSHDN = V+
UNITS
5.5
VIN = 0V, VSHDN = V+ = 3.3V
f = 1kHz
THD+N = 1%
Output Power (8Ω)
MAX
VIN = 0V, VSHDN = V+ = 5.0V
VIN = 0V, VSHDN = V+ = 2.6V
Quiescent Power Supply Current
TYP
2.5
%
dB
dB
ms
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
NOVEMBER 2020
3
1.3W Fully Differential
Audio Power Amplifier
SGM4895
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, AV = 1, f = 1kHz, CB = 1µF, unless otherwise noted.
THD+N vs. Output Power
THD+N (%)
1
10
V+ = 5.0V
RL = 8Ω
BW < 80kHz
0.1
0.01
0.001
0.01
V+ = 3.6V
RL = 8Ω
BW < 80kHz
1
THD+N (%)
10
THD+N vs. Output Power
0.1
1
0.1
0.01
0.001
0.01
10
0.1
Output Power (W)
THD+N vs. Output Power
10
V+ = 3.0V
RL = 8Ω
BW < 80kHz
V+ = 2.6V
RL = 8Ω
BW < 80kHz
1
THD+N (%)
THD+N (%)
1
0.1
0.01
0.001
0.01
0.1
0.1
0.01
0.001
0.01
1
0.1
Power Dissipation vs. Output Power
Power Dissipation vs. Output Power
0.4
Power Dissipation (W)
Power Dissipation (W)
0.8
0.6
V+ = 5.0V
RL = 8Ω
BW < 80kHz
0.2
THD+N ≤ 1%
0
0
0.2
0.4
0.6
0.8
1
Output Power (W)
SG Micro Corp
www.sg-micro.com
1
Output Power (W)
Output Power (W)
0.4
10
Output Power (W)
THD+N vs. Output Power
10
1
1.2
0.3
0.2
0.1
0
1.4
V+ = 3.6V
RL = 8Ω
BW < 80kHz
THD+N ≤ 1%
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Output Power (W)
NOVEMBER 2020
4
1.3W Fully Differential
Audio Power Amplifier
SGM4895
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, AV = 1, f = 1kHz, CB = 1µF, unless otherwise noted.
Power Dissipation vs. Output Power
Power Dissipation vs. Output Power
0.2
Power Dissipation (W)
Power Dissipation (W)
0.3
0.2
V+ = 3.0V
RL = 8Ω
BW < 80kHz
THD+N ≤ 1%
0.1
0
0
0.1
0.2
0.3
0.4
0.5
0.15
0.1
V+ = 2.6V
RL = 8Ω
BW < 80kHz
THD+N ≤ 1%
0.05
0
0.6
0
0.1
0.2
Output Power (W)
-40
Power Supply Rejection Ratio vs. Frequency
-40
0.5
Power Supply Rejection Ratio vs. Frequency
-60
PSRR (dB)
PSRR (dB)
0.4
Output Power (W)
-60
-80
V+ = 5.0V, RL = 8Ω
Input 10Ω Terminated
200mVP-P
-100
-120
0.01
0.1
1
10
-80
V+ = 3.0V, RL = 8Ω
Input 10Ω Terminated
200mVP-P
-100
-120
0.01
100
0.1
Frequency (kHz)
-20
0.3
1
10
100
Frequency (kHz)
Common Mode Rejection Ratio vs. Frequency
THD+N vs. Frequency
1
0.1
-60
THD+N (%)
CMRR (dB)
-40
-80
V+ = 5.0V, RL = 8Ω
Input 10Ω Terminated
200mVP-P
-100
-120
0.01
0.1
1
Frequency (kHz)
SG Micro Corp
www.sg-micro.com
10
100
0.01
0.001
0.01
V+ = 5.0V, RL = 8Ω
PO = 600mW
No filters
0.1
1
10
100
Frequency (kHz)
NOVEMBER 2020
5
1.3W Fully Differential
Audio Power Amplifier
SGM4895
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, AV = 1, f = 1kHz, CB = 1µF, unless otherwise noted.
Clipping (Dropout) Voltage vs. Supply Voltage
Output Power vs. Supply Voltage
2.5
RL = 8Ω
0.4
Top
0.3
0.2
Bottom
0.1
0
RL = 8Ω
2
Output Power (W)
Dropout Voltage (V)
0.5
2.5
3
3.5
4
4.5
5
1.5
1
THD+N = 1%
0.5
0
5.5
THD+N = 10%
2.5
3
3.5
Supply Voltage (V)
Power Dissipation (W)
Output Power (W)
THD+N = 10%
1
THD+N = 1%
0.5
2.5
3
5.5
1.6
1.5
0
5
Power Dissipation vs. Output Power
RL = 4Ω
2
4.5
Supply Voltage (V)
Output Power vs. Supply Voltage
2.5
4
3.5
4
4.5
Supply Voltage (V)
SG Micro Corp
www.sg-micro.com
5
5.5
1.4
1.2
1
V+ = 5.0V
RL = 4Ω
BW < 80kHz
THD+N ≤ 1%
0.8
0.6
0.4
0
0.5
1
1.5
2
Output Power (W)
NOVEMBER 2020
6
SGM4895
1.3W Fully Differential
Audio Power Amplifier
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
NOVEMBER 2020 ‒ REV.C.2 to REV.C.3
Page
Added Typical Thermal Resistance ..................................................................................................................................................................... 2
MARCH 2017 ‒ REV.C.1 to REV.C.2
Page
Updated PACKAGE/ORDERING INFORMATION ............................................................................................................................................... 2
NOVEMBER 2012 ‒ REV.C to REV.C.1
Page
Added note for Typical Application Circuits ...................................................................................................................................................... 7, 8
SG Micro Corp
www.sg-micro.com
NOVEMBER 2020
7
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TDFN-3×3-8L
D
e
N8
D1
k
E
E1
L
N4
N1
b
BOTTOM VIEW
TOP VIEW
2.3
1.5 2.725
A
A1
A2
0.675
SIDE VIEW
0.24
0.65
RECOMMENDED LAND PATTERN (Unit: mm)
Symbol
Dimensions
In Millimeters
MIN
MAX
Dimensions
In Inches
MIN
MAX
A
0.700
0.800
0.028
0.031
A1
0.000
0.050
0.000
0.002
A2
0.203 REF
0.008 REF
D
2.900
3.100
0.114
0.122
D1
2.200
2.400
0.087
0.094
E
2.900
3.100
0.114
0.122
E1
1.400
1.600
0.055
k
b
0.200 MIN
0.180
e
L
SG Micro Corp
www.sg-micro.com
0.300
0.007
0.575
0.015
0.650 TYP
0.375
0.063
0.008 MIN
0.012
0.026 TYP
0.023
TX00058.000
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
MSOP-8 (Exposed Pad)
D1
1.80
E1
E
1.55 4.8
E2
b
1.02
e
0.65
0.41
RECOMMENDED LAND PATTERN (Unit: mm)
D
L
A
A1
c
θ
A2
Symbol
Dimensions
In Millimeters
MIN
MAX
Dimensions
In Inches
MIN
MAX
A
0.820
1.100
0.032
0.043
A1
0.020
0.150
0.001
0.006
A2
0.750
0.950
0.030
0.037
b
0.250
0.380
0.010
0.015
c
0.090
0.230
0.004
0.009
D
2.900
3.100
0.114
0.122
D1
1.700
1.900
0.067
0.075
e
0.65 BSC
0.026 BSC
E
2.900
3.100
0.114
0.122
E1
4.750
5.050
0.187
0.199
E2
1.450
1.650
0.057
0.065
L
0.400
0.800
0.016
0.031
θ
0°
6°
0°
6°
SG Micro Corp
www.sg-micro.com
TX00016.000
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
W
P0
Q1
Q2
Q1
Q2
Q1
Q2
Q3
Q4
Q3
Q4
Q3
Q4
B0
Reel Diameter
A0
P1
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel
Diameter
Reel Width
W1
(mm)
A0
(mm)
B0
(mm)
K0
(mm)
P0
(mm)
P1
(mm)
P2
(mm)
W
(mm)
Pin1
Quadrant
TDFN-3×3-8L
13″
12.4
3.35
3.35
1.13
4.0
8.0
2.0
12.0
Q1
MSOP-8
(Exposed Pad)
13″
12.4
5.20
3.30
1.50
4.0
8.0
2.0
12.0
Q1
SG Micro Corp
www.sg-micro.com
TX10000.000
DD0001
Package Type
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Pizza/Carton
7″ (Option)
368
227
224
8
7″
442
410
224
18
SG Micro Corp
www.sg-micro.com
DD0002
Reel Type
TX20000.000
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