SGM4823 [SGMICRO]
Single/Dual-Input, Fixed-Gain Microphone Amplifier with Integrated Bias;
| 型号： | SGM4823 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Single/Dual-Input, Fixed-Gain Microphone Amplifier with Integrated Bias |
| 文件： | 总15页 (文件大小：752K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM4822/SGM4823/SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
GENERAL DESCRIPTION
FEATURES
The SGM4822/SGM4825 (single-input) and SGM4823/
SGM4826 (dual-input) are low noise, low power,
rail-to-rail, fixed-gain microphone amplifiers with
integrated bias. The SGM4822/SGM4823 support
power supply voltage from 3.3V to 5.5V and the
SGM4825/SGM4826 support wide power supply
voltagefrom 2.7Vto5.5V. The devices are suitable for
portable audio applications. They feature low THD+N =
0.009% in active mode, 2.6MHz bandwidth and forced
shutdown mode.
● Very Low Noise: 30nV/ Hz at 1kHz, Gain = 20dB
√
● Very Low THD+N: 0.009%, Gain = 20dB
● Wide Supply Voltage Range:
3.3V to 5.5V (SGM4822/SGM4823)
2.7V to 5.5V (SGM4825/SGM4826)
● Low Quiescent Current:
0.1µA in Forced Shutdown Mode
(SGM4822/SGM4823)
4µA in Monitor Mode at VCC = 3.3V
660μA in Active Mode
● Low Noise Microphone Bias Voltage: 2.3V
● Rail-to-Rail Outputs
● 20dB Fixed-Gain
● Automatic Switching between Low Power
Monitor Mode and Low Noise Active Mode
(SGM4822/SGM4823)
The SGM4822/SGM4823 power-saving features include
automatic switching between low power monitor mode
and low noise active mode, and the devices also
provide latched push-pull output to wake up external
MCU in sleeping mode. Two inputs of the
SGM4823/SGM4826 allow two microphones to be
multiplexed into one output.
● Latched Push-Pull Output to Wake Up External
MCU in Sleeping Mode (SGM4822/SGM4823)
● -40℃ to +85℃ Operating Temperature Range
The devices operate over an ambient temperature
range of -40℃ to+85℃.
APPLICATIONS
Laptop Computers
Smart Phones
Digital Cameras
VCRs
SG Micro Corp
SEPTEMBER 2018 – REV. A
www.sg-micro.com
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGM4822B-23
(Gain = 20dB, VBIAS = 2.3V)
SOT-23-8
-40℃ to +85℃
SGM4822B-23YN8G/TR
GTBXX
Tape and Reel, 3000
Tape and Reel, 4000
Tape and Reel, 3000
Tape and Reel, 3000
GX2
YMS10
XXXXX
SGM4823B-23
(Gain = 20dB, VBIAS = 2.3V)
MSOP-10
SOT-23-6
SOT-23-8
-40℃ to +85℃ SGM4823B-23YMS10G/TR
SGM4825B-23
(Gain = 20dB, VBIAS = 2.3V)
-40℃ to +85℃
-40℃ to +85℃
SGM4825B-23YN6G/TR
SGM4826B-23YN8G/TR
GTCXX
GTDXX
SGM4826B-23
(Gain = 20dB, VBIAS = 2.3V)
MARKING INFORMATION
NOTE: XX = Date Code. XXXXX = Date Code and Vendor Code.
SOT-23-6/SOT-23-8
MSOP-10
X X X X X
Vendor Code
YYY X X
Date Code - Month
Date Code - Year
Serial Number
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.
VCC to GND........................................................ -0.3V to +6V
All Other Pins........................................ -0.3V to (VCC + 0.3V)
Continuous Current (IN, IN1, IN2, SHDN, WAKEUP, RESET,
IN1/IN2) ......................................................................±20mA
Junction Temperature.................................................+150℃
Storage Temperature Range........................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
ESD SENSITIVITY CAUTION
HBM.............................................................................2000V
MM.................................................................................300V
CDM ............................................................................1000V
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 (SGM4822/SGM4823)...............3.3V to 5.5V
Supply Voltage (SGM4825/SGM4826)...............2.7V 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
SEPTEMBER 2018
2
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
PIN CONFIGURATIONS
SGM4822 (TOP VIEW)
SGM4823 (TOP VIEW)
OUT
GND
1
2
3
4
5
10 VCC
WAKEUP
SHDN
1
2
8
7
RESET
IN
9
8
7
6
BIAS
SHDN
IN1
SGM4822
SOT-23-8
SGM4823
MSOP-10
GND
OUT
3
4
6
5
BIAS
VCC
IN1/IN2
WAKEUP
IN2
RESET
SGM4825 (TOP VIEW)
SGM4826 (TOP VIEW)
IN1/IN2
SHDN
1
2
8
IN2
IN1
SHDN
GND
OUT
1
6
5
4
IN
7
2
3
BIAS
VCC
SGM4825
SGM4826
GND
OUT
3
4
6
BIAS
VCC
5
SOT-23-6
SOT-23-8
PIN DESCRIPTION
PIN
NAME
FUNCTION
SGM4822 SGM4823 SGM4825 SGM4826
1
2
5
3
WAKEUP Output to Wake up External Equipment in Sleeping Mode.
Active Low Shutdown Input. Logic high enables the device. Logic low
‒
‒
1
2
disables the device and turns it into shutdown mode. Do not leave this pin
floating.
SHDN
3
4
5
6
7
8
‒
‒
‒
2
1
2
3
4
5
6
‒
‒
‒
‒
3
4
5
6
‒
‒
7
8
1
GND
OUT
VCC
Ground.
Amplifier Output.
10
9
Positive Supply. Connect a 0.1μF capacitor between VCC pin and GND pin.
Low Noise Microphone Bias Output.
BIAS
IN
Amplifier Input.
‒
6
RESET WAKEUP Reset Pin and Set SGM4822/SGM4823 to Monitor Mode.
8
IN1
IN2
Amplifier Input 1.
Amplifier Input 2.
7
Input Selection Pin. When this pin is pulled high, IN1 is selected. While this
pin is pulled low, IN2 is selected.
4
IN1/IN2
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
3
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
ELECTRICAL CHARACTERISTICS
(VCC = 3.3V to 5V, VGND = 0V, RL = open, SHDN = VCC, Full = -40℃ to +85℃, typical values are at TA = +25℃, unless otherwise
noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
General
SGM4822/SGM4823
3.3
2.7
5.5
5.5
2
Supply Voltage Range
Supply Current
VCC
V
SGM4825/SGM4826
In shutdown, SHDN = GND (SGM4822/3)
In shutdown, SHDN = GND (SGM4825/6)
In monitor mode, RESET = 1.6V, VCC = 3.3V
In monitor mode, RESET = 1.6V, VCC = 5V
In active mode
0.1
1.5
4
ICC
4
15
8
µA
20
660
1050
1.71
2.74
VCC = 3.3V
1.39
2.26
1.55
2.55
115
Amplifier Output Bias Voltage
VOUT_DC
V
VCC = 5V
Input Resistance
RIN
AV
kΩ
dB
dB
Voltage Gain
19.6
20
20.4
0.05
Power Supply Rejection Ratio
PSRROUT Input referred
RL = 10kΩ to VCC/2
55
VCC - 0.0045
VOH
RL = 1kΩ to VCC/2
VCC - 0.055 VCC - 0.038
Output Voltage Swing
V
RL = 10kΩ to VCC/2
RL = 1kΩ to VCC/2
0.0035
0.03
VOL
VCC = 3.3V, sinking or sourcing
VCC = 5V, sinking or sourcing
VOUT = 10mVP-P
28
70
45
100
2.6
50
Output Short-Circuit Current
IOUT_SC
mA
Small-Signal -3dB Bandwidth
Output Capacitive Load Stability
Output Impedance
BW
CL
MHz
pF
No sustained oscillations
f = 1kHz
ZOUT
SR
0.02
4.8
Ω
Output Slew Rate
VOUT = 1V step
V/µs
Amplifier Input Voltage Noise
Density
en
Inputs at AC GND, f = 1kHz, Gain = 20dB
30
nV/ Hz
√
Inputs at AC GND,
A-weighted, BW = 22Hz to 22kHz,
Total Integrated Input Noise
Vn
2.3
µVRMS
dB
1kHz
97
96
Input referred,
SGM4823/SGM4826
Off-Isolation
10kHz
f = 1kHz, Gain = 20dB, VOUT = 1VP-P
BW = 22Hz to 22kHz
,
Total Harmonic Distortion + Noise
THD+N
0.009
%
Bias
Bias Output Voltage Range
VBIAS
2.21
2.3
55
2.42
V
Power Supply Rejection Ratio
(VCC to BIAS)
PSRRBIAS
dB
BIAS short to GND, VCC = 3.3V
BIAS short to GND, VCC = 5V
No sustained oscillations
18
40
40
80
50
30
BIAS Current Limit
IBIAS_SC
mA
BIAS Capacitive Load Stability
Total Integrated BIAS Noise
CBIAS
Vn
pF
A-weighted, BW = 22Hz to 22kHz
µVRMS
Threshold of Comparator at Audio Monitor Circuit (Internal Bias Voltage + Vtha
)
Threshold of Audio Signal
VTHA
SGM4822/SGM4823
0.2
V
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
4
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.3V to 5V, VGND = 0V, RL = open, SHDN = VCC, Full = -40℃ to +85℃, typical values are at TA = +25℃, unless otherwise
noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
0.4
UNITS
Digital Inputs (RESET, SHDN, IN1/IN2, WAKEUP)
Logic Low Threshold
Logic High Threshold
Logic Input Current
VIL
VIH
V
V
2
IIN
±1
µA
µs
ns
µs
SHDN = GND or VCC
95% of settled value
tSHDN_ON
tSHDN_OFF
Shutdown Enable Time
Shutdown Disable Time
IN1/IN2 Select Time
25
100
40
tSEL
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25℃, VCC = 5V, VGND = 0V, RL = open, SHDN = VCC, unless otherwise noted.
THD+N vs. Frequency
THD+N vs. Output Voltage
BW = 22Hz to 22kHz
1
10
5
BW = 22Hz to 22kHz
OUT = 1VP-P
0.5
V
f = 1kHz
2
0.2
0.1
1
0.5
0.05
0.2
0.1
0.02
0.01
0.05
0.005
0.02
0.002
0.001
0.01
0.006
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
0
250m
500m
750m
1
1.25
1.5
1.75
2
Frequency (kHz)
Output Voltage (VRMS)
Gain vs. Frequency
Off-Isolation vs. Frequency
25
20
15
10
5
VOUT = 10mVP-P
VIN1 = 100mVRMS
0
-20
-40
-60
-80
0
IN1 to OUT with IN2 selected
-100
-5
-10
-120
0.01
0.1
1
10
100
0.005 0.05
0.5
5
50
500
5000
Frequency (kHz)
Frequency (kHz)
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
5
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VCC = 5V, VGND = 0V, RL = open, SHDN = VCC, unless otherwise noted.
PSRROUT vs. Frequency
PSRRBIAS vs. Frequency
VRIPPLE = 100mVP-P
10
0
10
0
VRIPPLE = 100mVP-P
Input referred
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
Frequency (kHz)
Frequency (kHz)
VBIAS vs. Temperature
Supply Current vs. Temperature
900
800
700
600
500
400
300
200
2.310
2.305
2.300
2.295
2.290
2.285
2.280
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Temperature (℃)
Temperature (℃)
Supply Current vs. Supply Voltage
800
700
600
500
400
300
200
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Supply Voltage (V)
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
6
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VCC = 5V, VGND = 0V, RL = open, SHDN = VCC, unless otherwise noted.
Small Signal Pulse Response
Large Signal Pulse Response
CL = 10pF
CL = 10pF
IN
IN
OUT
OUT
Time (1μs/div)
Time (500ns/div)
Out of Shutdown Waveform Input Unconnected
Switch between Two Inputs
IN2 = 200mVP-P at 20kHz
IN1 = 100mVP-P at 10kHz
OUT
SHDN
BIAS
OUT
IN1/IN2
Time (1ms/div)
Time (200μs/div)
Output Overdriven
VCC = 3.3V
OUT
IN
Time (2μs/div)
SG Micro Corp
SEPTEMBER 2018
www.sg-micro.com
7
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
FUNCTIONAL BLOCK DIAGRAM
VCC
VBIAS
Generator
BIAS
VBIAS
SHDN
OUT
Control
Gain = x
IN
WAKEUP
RESET
Voice Wake Up
SGM4822
VCC
VBIAS
Generator
BIAS
SHDN
VBIAS
Control
IN1/IN2
IN1
IN2
Gain = x
OUT
IN1/IN2
WAKEUP
RESET
Voice Wake Up
SGM4823
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
8
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
FUNCTIONAL BLOCK DIAGRAM (continued)
VCC
SHDN
VBIAS
Generator
BIAS
VBIAS
Gain = x
OUT
IN
SGM4825
VCC
SHDN
VBIAS
Generator
BIAS
VBIAS
IN1
IN2
Gain = x
OUT
IN1/IN2
SGM4826
Figure 1. Block Diagram
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
9
SGM4822/SGM4823
SGM4825/SGM4826
Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (SEPTEMBER 2018) to REV.A
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2018
10
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-8
D
0.65
0.4
e1
e
E1
E
2.59
0.99
b
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
θ
c
A1
0.2
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
MIN
MAX
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
c
D
E
E1
e
0.650 BSC
0.975 BSC
0.026 BSC
0.038 BSC
e1
L
0.300
0°
0.600
8°
0.012
0°
0.024
8°
θ
SG Micro Corp
www.sg-micro.com
TX00035.000
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
MSOP-10
b
E1
E
4.8
1.02
0.3
e
0.5
RECOMMENDED LAND PATTERN (Unit: mm)
D
L
A
A1
c
θ
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.100
0.150
0.950
0.280
0.230
3.100
3.100
5.050
MIN
MAX
0.043
0.006
0.037
0.011
0.009
0.122
0.122
0.199
A
A1
A2
b
0.820
0.020
0.750
0.180
0.090
2.900
2.900
4.750
0.032
0.001
0.030
0.007
0.004
0.114
0.114
0.187
c
D
E
E1
e
0.500 BSC
0.020 BSC
L
0.400
0°
0.800
6°
0.016
0°
0.031
6°
θ
SG Micro Corp
www.sg-micro.com
TX00015.000
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-6
D
e1
e
E1
E
2.59
0.99
b
0.95
0.69
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
A2
0.2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
MIN
MAX
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
c
D
E
E1
e
0.950 BSC
1.900 BSC
0.037 BSC
0.075 BSC
e1
L
0.300
0°
0.600
8°
0.012
0°
0.024
8°
θ
SG Micro Corp
www.sg-micro.com
TX00034.000
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
SOT-23-8
MSOP-10
SOT-23-6
7″
13″
7″
9.5
12.4
9.5
3.17
5.20
3.17
3.23
3.30
3.23
1.37
1.20
1.37
4.0
4.0
4.0
4.0
8.0
4.0
2.0
2.0
2.0
8.0
12.0
8.0
Q3
Q1
Q3
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)
368
442
386
227
410
280
224
224
370
8
18
5
7″
13″
SG Micro Corp
www.sg-micro.com
TX20000.000
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