SGM4915 [SGMICRO]
Dual 145mW Headphone Amplifier with Active Low Shutdown Mode;
| 型号： | SGM4915 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Dual 145mW Headphone Amplifier with Active Low Shutdown Mode |
| 文件： | 总11页 (文件大小：681K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM4915
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
GENERAL DESCRIPTION
FEATURES
The SGM4915 is a dual audio power amplifier with
active low shutdown mode. It is designed to maximize
audio performance in portable applications. The audio
power amplifier is designed for the portable application
that needs low-component count and can operate from
a single 2.5V to 5.5V power supply. Under the condition
of using a 5.0V power supply to drive a 16Ω speaker, it
can deliver a continuous average power of 145mW per
channel, and the distortion (THD) is less than 0.1%.
• Supply Voltage Range: 2.5V to 5.5V
• Active Low Shutdown Mode
• 145mW into 16Ω Load from 5V Power Supply at
THD+N = 0.1% (Typical, per Channel)
• 82mW into 32Ω Load from 5V Power Supply at
THD+N = 0.1% (Typical, per Channel)
• Unity Gain Stable
• Shutdown Current: 0.02μA (TYP)
• Shutdown Pin is Compatible with 1.8V Logic
• Pop/Click Reduction Circuitry
The SGM4915 provides an active-low, micro-power
consumption shutdown mode which is controlled
externally and an internal thermal shutdown protection.
• -40℃ to +85℃ Operating Temperature Range
• Available in a Green TDFN-2×2-8L Package
The SGM4915 is applied to low power portable
systems. Bootstrap capacitors or snubber networks are
not needed.
APPLICATIONS
Mobile Phone
The SGM4915 provides an externally controlled gain
(with resistors), as well as an externally controlled
turn-on time (with the bypass capacitor) for maximum
flexibility.
Portable Systems
Headphone Amplifier
Notebook Computers
Microphone Preamplifier
PDAs
The SGM4915 is available in a Green TDFN-2×2-8L
package. It operates over an ambient temperature
range of -40℃ to +85℃.
GPS
SG Micro Corp
MAY 2011 – REV. A. 1
www.sg-micro.com
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
4915
XXXX
SGM4915
TDFN-2×2-8L
SGM4915YDE8G/TR
Tape and Reel, 3000
-40℃ to +85℃
MARKING INFORMATION
NOTE: XXXX = Date Code.
X X X X
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.
OVERSTRESS CAUTION
ABSOLUTE MAXIMUM RATINGS
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.
Supply Voltage...................................................................6V
Input Voltage......................................... -0.3V to (VCC) + 0.3V
Junction Temperature.................................................+150℃
Storage Temperature Range........................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
HBM.............................................................................2000V
MM.................................................................................200V
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.
Failureto observe proper handlingand installation procedures
can cause damage. ESD damage can range from subtle
performance degradation tocomplete 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.
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range........................................2.5V to 5.5V
Operating Temperature Range.......................-40℃ to +85℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
MAY 2011
2
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
PIN CONFIGURATION
(TOP VIEW)
1
2
3
4
8
7
6
5
VCC
VO1
VO2
VIN2
GND
VIN1
SHDN
GND
Bypass
TDFN-2×2-8L
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
2
C1P
PGND
C1N
Positive Terminal for Flying Capacitor. Connect a 1µFcapacitor to C1N.
Power Ground. Connect to SGND.
3
Negative Terminal for Flying Capacitor. Connect a 1µF capacitor to C1P.
Charge-Pump Output. Connect to SVSS and bypass with a 1µF ceramic capacitor to PGND.
Active-Low Shutdown Input.
4
PVSS
5
SHDN
INL
6
Input for Left-Channel.
7
SGND
INR
Signal Ground. Connect to PGND.
8
Input for Right-Channel.
9
SVSS
OUTR
OUTL
VDD
Amplifier Negative Supply. Connect to PVSS
.
10
11
12
Output for Right-Channel.
Output for Left-Channel.
Positive Power-Supply Input. Bypass with a 1µF capacitor to SGND.
Exposed
Pad
—
Exposed Pad. Can be connected to GND or left floating.
SG Micro Corp
MAY 2011
www.sg-micro.com
3
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
ELECTRICAL CHARACTERISTICS
(TA = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
4
UNITS
2.5
V
VIN = 0V, VSHDN = GND, VCC = 5.0V
VIN = 0V, VSHDN = GND, VCC = 3.3V
VIN = 0V, VSHDN = GND, VCC = 2.6V
0.02
0.02
0.02
2.5
Shutdown Current
ISD
VOS
IQ
μA
mV
mA
V
IN = 0V, VSHDN = VCC = 5.0V
-50
50
Output Offset Voltage
VIN = 0V, VSHDN = VCC = 3.3V
VIN = 0V, VSHDN = VCC = 2.6V
2.5
2.5
VCC = 5.0V, No Load
1.65
1.50
1.40
2.8
VIN = 0V,
SHDN = VCC
Quiescent Power Supply Current
VCC = 3.3V, No Load
VCC = 2.6V, No Load
V
Shutdown Voltage Input High
Shutdown Voltage Input Low
VSDIH
VSDIL
1.2
V
V
0.4
RL = 16Ω
RL = 32Ω
RL = 16Ω
RL = 32Ω
RL = 16Ω
RL = 32Ω
RL = 16Ω
RL = 32Ω
145
85
78
44
54
31
40
23
V
CC = 5.0V
VCC = 3.6V
VCC = 3.0V
VCC = 2.6V
f = 1kHz
THD+N = 0.1%
Output Power (per Channel)
PO
mW
PO = 78mW, VCC = 5.0V, RL = 32Ω,
f = 20Hz to 20kHz
Total Harmonic Distortion + Noise
THD+N
Xtalk
0.1
%
Crosstalk
RL = 32Ω, PO = 70mW, VCC = 5V, f = 1kHz
-85
-67
-67
-65
-64
-75
-75
-74
-65
dB
V
CC = 5.0V
f = 217Hz, CB = 1μF, RL = 32Ω
RIPPLE = 200mVp-p,
VCC = 3.6V
VCC = 3.0V
VCC = 2.6V
V
Input Grounded with 10Ω
Power Supply Rejection Ratio
PSRR
dB
V
CC = 5.0V
f = 1kHz, CB = 1μF, RL = 32Ω
VCC = 3.6V
VCC = 3.0V
VCC = 2.6V
V
RIPPLE = 200mVp-p,
Input Grounded with 10Ω
SG Micro Corp
www.sg-micro.com
MAY 2011
4
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
TYPICAL PERFORMANCE CHARACTERISTICS
THD+N vs. Output Power per Channel
THD+N vs. Output Power per Channel
10
1
10
1
VCC = 5V, RL = 32Ω
f = 1kHz, AV = -1
BW < 80kHz
VCC = 3V, RL = 32Ω
f = 1kHz, AV = -1
BW < 80kHz
0.1
0.1
0.01
0.01
0.001
0.001
0.001
0.01
0.1
1
0.001
0.01
0.1
0.1
100
Output Power (W)
Output Power (W)
THD+N vs. Output Power per Channel
THD+N vs. Output Power per Channel
10
1
10
1
VCC = 5V, RL = 16Ω
f = 1kHz, AV = -1
BW < 80kHz
VCC = 3V, RL = 16Ω
f = 1kHz, AV = -1
BW < 80kHz
0.1
0.1
0.01
0.001
0.01
0.001
0.01
0.1
1
0.001
0.01
Output Power (W)
Output Power (W)
THD+N vs. Frequency
THD+N vs. Frequency
1
0.1
1
0.1
0.01
0.01
0.001
VCC = 3V
RL = 32Ω
O = 25mW
VCC = 5V
RL = 32Ω
O = 80mW
BW < 80kHz
P
P
BW < 80kHz
0.001
0.01
0.1
1
10
100
0.01
0.1
1
10
Frequency (kHz)
Frequency (kHz)
SG Micro Corp
www.sg-micro.com
MAY 2011
5
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Power-Supply Rejection Ratio vs. Frequency
Power-Supply Rejection Ratio vs. Frequency
0
-20
0
-20
VCC = 5V
RL = 32Ω
VCC = 3V
RL = 32Ω
V
RIPPLE = 200mVP-P
V
RIPPLE = 200mVP-P
-40
-40
-60
-60
-80
-80
-100
-100
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Large Signal Step Response
Large Signal Step Response
VCC = 5V
VCC = 3V
Time (2μs/div)
Time (2μs/div)
Small Signal Step Response
Small Signal Step Response
VCC = 5V
VCC = 3V
Time (2μs/div)
Time (2μs/div)
SG Micro Corp
MAY 2011
www.sg-micro.com
6
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Output Power vs. Supply Voltage
Output Power vs. Supply Voltage
0.15
0.12
0.09
0.06
0.03
0
0.3
0.25
0.2
RL = 32Ω, f = 1kHz
AV = -1, BW < 80kHz
RL = 16Ω, f = 1kHz
AV = -1, BW < 80kHz
THD+N = 1%
THD+N = 1%
THD+N = 10%
THD+N = 10%
0.15
0.1
THD+N = 0.1%
THD+N = 0.1%
0.05
0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
Supply Voltage (V)
Power Dissipation vs. Output Power per channel
0.1
0.08
0.06
0.04
0.02
0
RL = 16Ω
RL = 32Ω
VCC = 5V, f = 1kHz
THD+N < 1%, AV = -1
BW < 80kHz
0
0.05
0.1
0.15
0.2
Output Power (W)
SG Micro Corp
www.sg-micro.com
MAY 2011
7
Dual 145mW Headphone Amplifier
with Active Low Shutdown Mode
SGM4915
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
MAY 2011 ‒ REV.A to REV.A.1
Updated package name.....................................................................................................................................................................................All
Changes from Original (MARCH 2010) to REV.A
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
MAY 2011
8
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TDFN-2×2-8L
D
e
N8
E1
D1
L
E
k
N4
N1
b
BOTTOM VIEW
TOP VIEW
1.20
0.65
0.60 1.95
A
A1
A2
SIDE VIEW
0.24
0.50
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
0.800
0.050
MIN
0.028
0.000
MAX
0.031
0.002
A
A1
A2
D
0.700
0.000
0.203 REF
0.008 REF
1.900
1.100
1.900
0.500
2.100
1.300
2.100
0.700
0.075
0.043
0.075
0.020
0.083
0.051
0.083
0.028
D1
E
E1
k
0.200 MIN
0.500 TYP
0.008 MIN
0.020 TYP
b
0.180
0.250
0.300
0.450
0.007
0.010
0.012
0.018
e
L
SG Micro Corp
www.sg-micro.com
TX00056.000
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
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 Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
TDFN-2×2-8L
7″
9.5
2.30
2.30
1.10
4.0
4.0
2.0
8.0
Q1
SG Micro Corp
TX10000.000
www.sg-micro.com
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)
Reel Type
Pizza/Carton
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
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