SGM4917 [SGMICRO]
80mW, Capless, Stereo Headphone Amplifier with Shutdown;
| 型号： | SGM4917 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 80mW, Capless, Stereo Headphone Amplifier with Shutdown |
| 文件： | 总11页 (文件大小：593K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM4917
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
GENERAL DESCRIPTION
FEATURES
The SGM4917 is stereo headphone amplifier which is
designed for portable applications and can operate
from a 2.7V to 5.5V single supply. Capless design can
produce a ground-referenced output from a single
power supply, and can eliminate output DC-blocking
capacitors for less-component height and low-cost. For
SGM4917B, the internal gain setting (-2V/V) is to
further reduce component count. For SGM4917A, the
gain can be adjusted by external feedback resistors.
Supply Voltage Range: 2.7V to 5.5V
• SGM4917A: External Feedback Gain Network
SGM4917B: Fixed -2V/V Gain
Capless Structure
Eliminates Ground-Referenced Outputs
Eliminates Output DC-Blocking Capacitors
Provides Flat Frequency Response
• 80mW into 32Ω Load from 5V Power Supply at
THD+N = 0.1% (Typical, per Channel)
• THD+N = 0.02% (f = 1kHz)
The SGM4917 has low quiescent current 2.7mA at 5V
supply, low 0.02% THD+N, 80mW per channel into
32Ω load from 5V power supply at THD+N = 0.1%. The
high supply rejection ratio (PSRR) of -78dB at 217Hz
allows the device to operate from noisy digital supplies
without an additional linear regulator. The device
provides short-circuit and thermal-overload protections.
Build-in shutdown control also helps for pop/click-free
on/off control.
• High PSRR: -78dB (at 217Hz)
• Quiescent Current: 2.7mA (TYP)
• Shutdown Control
• Short-Circuit and Thermal-Overload Protections
• Under-Voltage Lockout Function
• Enhanced Noise Cancellation by Differential Inputs
• -40℃ to +85℃ Operating Temperature Range
• Available in a Green TQFN-3×3-16L Package
The SGM4917 is available in a Green TQFN-3×3-16L
package. It operates over an ambient temperature
range of -40℃ to +85℃.
APPLICATIONS
Smart Phones
Portable Audio Equipment
Notebook PCs
PDAs
SG Micro Corp
JULY 2017 –REV. A. 3
www.sg-micro.com
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
GAIN
(V/V)
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
4917AQ
XXXXX
SGM4917A
SGM4917B
ADJ
-2
TQFN-3×3-16L
TQFN-3×3-16L
SGM4917AYTQ16G/TR
SGM4917BYTQ16G/TR
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
4917BQ
XXXXX
MARKING INFORMATION
NOTE: XXXXX = Date Code and Vendor Code.
X X X X X
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
OVERSTRESS CAUTION
PVSS to SVSS...................................................-0.3V to +0.3V
PGND to SGND..............................................-0.3V to +0.3V
PVDD to SVDD ..................................................-0.3V to +0.3V
PVDD and SVDD to PGND or SGND ...................-0.3V to +6V
PVSS and SVSS to PGND or SGND....................-6V to +0.3V
IN to SGND............................(SVSS - 0.3V) to (SVDD + 0.3V)
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.
to SGND................................ -0.3V to (SVDD + 0.3V)
SHDN
ESD SENSITIVITY CAUTION
OUT to SGND........................(SVSS - 0.3V) to (SVDD + 0.3V)
C1P to PGND .................................... -0.3V to (PVDD + 0.3V)
C1N to PGND ................................... (PVSS - 0.3V) to + 0.3V
Output Short Circuit to GND or VDD .....................Continuous
Junction Temperature................................................+150℃
Storage Temperature Range....................... -65℃ to +150℃
Lead Temperature (Soldering, 10s)...........................+260℃
ESD Susceptibility
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.
HBM............................................................................ 2000V
HBM (Output pins to Supply and Ground pins)........... 4000V
MM................................................................................ 150V
DISCLAIMER
SG Micro Corp reserves the right to make any change in
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range .......................................2.7V to 5.5V
Operating Temperature Range ...................... -40℃ to +85℃
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
JULY 2017
2
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
PIN CONFIGURATION
(TOP VIEW)
16
15
14
13
1
2
3
4
12
11
10
9
PVDD
C1P
OUTL
SVSS
PGND
C1N
OUTR
SVDD
5
6
7
8
TQFN-3×3-16L
PIN DESCRIPTION
PIN
NAME
DESCRIPTION
Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and oscillator.
Connect to positive supply (2.7V to 5.5V). Bypass with a 1µF capacitor to PGND as close to the
pin as possible.
1
PVDD
2
3
4
5
6
7
8
C1P
PGND
C1N
Positive Terminal for Flying Capacitor. Connect a 1µFcapacitor to C1N.
Power Ground. Connect to ground.
Negative Terminal for Flying Capacitor. Connect a 1µF capacitor to C1P.
PVSS
SGND
INR+
INR-
Charge-Pump Output. Connect to SVSS
.
Signal Ground. Connect to ground.
Noninverting Right-Channel Audio Input.
Inverting Right-Channel Audio Input.
Amplifier Positive Power Supply. Connect to positive supply (2.7V to 5.5V). Bypass with a 1µF
capacitor to SGND as close to the pin as possible.
9,13
SVDD
10
11
12
14
15
16
OUTR
SVSS
OUTL
INL-
Output for Right-Channel.
Amplifier Negative Power Supply. Connect to PVSS
.
Output for Left-Channel.
Inverting Left-Channel Audio Input.
Noninverting Left-Channel Audio Input.
Active-Low Shutdown Input.
INL+
SHDN
Exposed
Pad
—
Exposed Pad. Can be connected to GND or left floating.
SG Micro Corp
www.sg-micro.com
JULY 2017
3
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
ELECTRICAL CHARACTERISTICS
(PVDD = SVDD = 5V, PGND = SGND = 0V,
= SVDD, C1 = C2 = 1µF, RL = ∞, resistive load referenced to ground; for
SHDN
SGM4917A, gain = -1V/V (RIN = RF = 10kΩ); for SGM4917B, gain = -2V/V (internally set). TA = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
General
Supply Voltage Range
Quiescent Supply Current
Shutdown Supply Current
VDD
IDD
2.7
5.5
3.7
8
V
mA
µA
V
2.7
ISHDN
VIH
0.01
= SGND = PGND
SHDN
Input Logic High
SHDN
1.2
Input Logic Low
SHDN
VIL
0.4
V
to Full Operation Time
SHDN
tSON
3.2
ms
Amplifiers
Voltage Gain
AV
SGM4917B
-2.12
-2
-1.88
V/V
%
SGM4917B, between the right and left
channels
Gain Matching
ΔAV
0.2
Between IN+ and IN-, input AC-coupled to
ground (SGM4917A)
Output Offset Voltage
VOS
-5.5
1.1
5.5
17
mV
Input Impedance
RIN
SGM4917B, measured at INL and INR
Input referred, SGM4917A
12.5
14.6
-70
-78
-70
80
kΩ
Common Mode Rejection Ratio
CMRR
dB
f = 217Hz, VRIPPLE = 200mVP-P
f = 10kHz, VRIPPLE = 200mVP-P
RL = 32Ω, THD+N = 0.1%
Power Supply Rejection Ratio
PSRR
POUT
dB
Output Power
mW
kΩ
%
Output Impedance in Shutdown
Total Harmonic Distortion Plus Noise
Signal-to-Noise Ratio
2
THD+N
SNR
CL
RL = 32Ω, POUT = 55mW, f = 1kHz
RL = 32Ω, POUT = 20mW, BW < 20kHz
No sustained oscillation
0.02
100
200
350
dB
pF
Capacitive Drive
Charge-Pump Oscillator Frequency
fOSC
200
500
kHz
RL = 32Ω, VIN = 200mVP-P, f = 10kHz
AV = -1V/V
Crosstalk
90
dB
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
137
11
℃
℃
SG Micro Corp
www.sg-micro.com
JULY 2017
4
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
TYPICAL PERFORMANCE CHARACTERISTICS
THD+N vs. Output Power
THD+N vs. Output Power
10
5
10
5
VDD = 3V
RL = 32Ω
f = 1kHz
VDD = 5V
RL = 32Ω
f = 1kHz
2
1
2
1
BW < 22kHz
BW < 22kHz
0.5
0.5
0.2
0.1
0.2
0.1
0.05
0.05
OUTPUTS IN
PHASE
OUTPUTS IN
PHASE
0.02
0.01
0.02
0.01
0.005
ONE CHANNEL
DRIVEN
ONE CHANNEL
DRIVEN
0.005
0.002
0.001
0.002
0.001
10
20
30
40
50
60
70
80
25
50
75
100
125
150
175
200
Output Power (mW)
Output Power (mW)
Power Dissipation vs. Output Power
Power Dissipation vs. Output Power
150
120
90
60
30
0
350
300
250
200
150
100
50
OUTPUTS IN
PHASE
OUTPUTS IN
PHASE
ONE CHANNEL
DRIVEN
ONE CHANNEL
DRIVEN
VDD = 3V, RL = 32Ω
f = 1kHz, BW < 22kHz
VDD = 5V, RL = 32Ω
f = 1kHz, BW < 22kHz
0
0
20
40
60
80
100
120
0
50
100
150
200
250
300
Output Power (mW)
Output Power (mW)
Output Power vs. Supply Voltage
Output Power vs. Supply Voltage
250
200
150
100
50
250
200
150
100
50
RL = 32Ω, f = 1kHz, BW < 22kHz
OUTPUTS IN PHASE
RL = 32Ω, f = 1kHz, BW < 22kHz
ONE CHANNEL DRIVEN
THD+N 10%
THD+N 10%
THD+N 1%
THD+N 1%
0
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)
SG Micro Corp
www.sg-micro.com
JULY 2017
5
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Crosstalk vs. Frequency
Crosstalk vs. Frequency
-40
-60
-40
-60
VDD = 3V, RL = 32Ω
OUT = 70mVRMS, AV = -2
VDD = 5V, RL = 32Ω
OUT = 70mVRMS, AV = -2
V
V
-80
-80
RIGHT TO LEFT
LEFT TO RIGHT
RIGHT TO LEFT
-100
-100
LEFT TO RIGHT
-120
-120
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Crosstalk vs. Frequency
VDD = 3V, RL = 32Ω
Crosstalk vs. Frequency
-40
-40
VDD = 5V, RL = 32Ω
IN = 200mVP-P, AV = -1
V
IN = 200mVP-P, AV = -1
V
-60
-80
-60
-80
RIGHT TO LEFT
LEFT TO RIGHT
RIGHT TO LEFT
-100
-120
LEFT TO RIGHT
-100
-120
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
THD+N vs. Frequency
THD+N vs. Frequency
10
5
10
VDD = 3V
RL = 32Ω
5
VDD = 5V
2
1
RL = 32Ω
AV = -1V/V
2
1
AV = -1V/V
BW < 22kHz
0.5
BW < 22kHz
0.5
0.2
0.1
0.2
0.1
0.05
0.05
0.02
0.01
0.02
0.01
PO = 5mW
PO = 20mW
PO = 5mW
PO = 20mW
PO = 80mW
0.005
0.005
0.002
0.001
PO = 40mW
0.002
0.001
10 20
50 100 200 500 1k 2k
5k 10k 20k
50k 100k
10 20
50 100 200 500 1k 2k
5k 10k 20k
50k 100k
Frequency (Hz)
Frequency (Hz)
SG Micro Corp
JULY 2017
www.sg-micro.com
6
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Power Supply Rejection Ratio vs. Frequency
Power Supply Rejection Ratio vs. Frequency
0
-20
0
-20
VDD = 5V, RL = 32Ω
Input AC-coupled to GND
VDD = 3V, RL = 32Ω
Input AC-coupled to GND
V
RIPPLE = 200mVP-P
V
RIPPLE = 200mVP-P
-40
-40
-60
-60
LEFT CHANNEL
RIGHT CHANNEL
LEFT CHANNEL
-80
-80
RIGHT CHANNEL
-100
-100
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Power Supply Rejection Ratio vs. Frequency
Power Supply Rejection Ratio vs. Frequency
0
-20
0
VDD = 5V, RL = 32Ω
Input AC-coupled to GND
VDD = 3V, RL = 32Ω
Input AC-coupled to GND
V
RIPPLE = 100mVP-P
-20
-40
V
RIPPLE = 100mVP-P
-40
-60
-60
LEFT CHANNEL
RIGHT CHANNEL
LEFT CHANNEL
-80
-80
RIGHT CHANNEL
-100
-100
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
PSRR vs. Supply Voltage
Turn-On Time vs. Supply Voltage
-50
-60
4
3.5
3
f = 1kHz
V
RIPPLE = 200mVP-P
2.5
2
-70
LEFT CHANNEL
-80
1.5
1
RIGHT CHANNEL
-90
0.5
0
-100
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)
SG Micro Corp
www.sg-micro.com
JULY 2017
7
80mW, Capless, Stereo Headphone
Amplifier with Shutdown
SGM4917
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
JULY 2017 ‒ REV.A.2 to REV.A.3
Updated Typical Application Circuit ..................................................................................................................................................................8-9
DECEMBER 2012 ‒ REV.A.1 to REV.A.2
Added note for Typical Application Circuit.........................................................................................................................................................8-9
SEPTEMBER 2012 ‒ REV.A to REV.A.1
Added Tape and Reel Information ................................................................................................................................................................11-12
Changes from Original (FEBRUARY 2012) to REV.A
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
JULY 2017
8
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TQFN-3×3-16L
D
e
N16
N1
L
D1
E
E1
k
N5
b
BOTTOM VIEW
TOP VIEW
1.7
0.7
A
3.6 2.2 1.7
A1
A2
SIDE VIEW
0.5
0.24
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
2.900
1.600
2.900
1.600
3.100
1.800
3.100
1.800
0.114
0.063
0.114
0.063
0.122
0.071
0.122
0.071
D1
E
E1
k
0.200 MIN
0.500 TYP
0.008 MIN
0.020 TYP
b
0.180
0.300
0.300
0.500
0.007
0.012
0.012
0.020
e
L
SG Micro Corp
www.sg-micro.com
TX00081.000
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
TQFN-3×3-16L
13″
12.4
3.35
3.35
1.13
4.0
8.0
2.0
12.0
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
13″
386
280
370
5
SG Micro Corp
www.sg-micro.com
TX20000.000
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