SGM4808B [SGMICRO]

Wide Power Supply Range Audio Click-Pop Noise Eliminator;
SGM4808B
型号: SGM4808B
厂家: Shengbang Microelectronics Co, Ltd    Shengbang Microelectronics Co, Ltd
描述:

Wide Power Supply Range Audio Click-Pop Noise Eliminator

文件: 总16页 (文件大小:775K)
中文:  中文翻译
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SGM4808B  
Wide Power Supply Range  
Audio Click-Pop Noise Eliminator  
GENERAL DESCRIPTION  
FEATURES  
The SGM4808B is an audio click-pop eliminator which  
can operate from a 2.7V to 12V single power supply. It  
is designed for HiFi audio system or portable devices.  
Supply Voltage Range: 2.7V to 12V  
Low On-Resistance: 1Ω (TYP)  
-VCC to +VCC Rail-to-Rail Low Distortion Audio  
Signals Passing  
The SGM4808B allows -VCC to +VCC wide range audio  
signals passing with low distortion. An external  
processor can eliminate the click-pop noise.  
Fast Switching Times  
High Off-Isolation  
Low Crosstalk  
The SGM4808B is available in a Green TQFN-2.6×1.8-16L  
package. It operates over an ambient temperature  
range of -40to +85.  
1.8V Logic Control  
-40to +85Operating Temperature Range  
Available in a Green TQFN-2.6×1.8-16L Package  
APPLICATIONS  
HiFi Audio System  
Portable Equipment  
SG Micro Corp  
NOVEMBER 2016 – REV. A  
www.sg-micro.com  
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
PACKAGE/ORDERING INFORMATION  
SPECIFIED  
TEMPERATURE  
RANGE  
PACKAGE  
DESCRIPTION  
ORDERING  
NUMBER  
PACKAGE  
MARKING  
PACKING  
OPTION  
MODEL  
4808B  
XXXXX  
SGM4808B  
TQFN-2.6×1.8-16L  
SGM4808BYTQA16G/TR  
Tape and Reel, 3000  
-40to +85℃  
NOTE: XXXXX = Date Code and Vendor Code.  
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  
VCC to GND..........................................................0V to 13.2V  
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.  
,
, EN to GND..............................0V to 6V  
MUTER MUTEL  
Passing Audio Signals Range (1)  
...................................................(-VCC - 0.3V) to (VCC + 0.3V)  
Continuous Current...................................................±200mA  
Peak Current.............................................................±250mA  
I/O Clamp Current (VI < 0) ...........................................-30mA  
Junction Temperature.................................................+150℃  
Storage Temperature Range........................-65to +150℃  
Lead Temperature (Soldering, 10s)............................+260℃  
ESD Susceptibility  
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.  
HBM.............................................................................7000V  
MM.................................................................................300V  
CDM ............................................................................1000V  
NOTE:  
1. Signals on RIN, LIN, ROUT, LOUT, exceeding VCC will be  
clamped by internal diodes. Limit forward diode current to  
maximum current ratings.  
DISCLAIMER  
SG Micro Corp reserves the right to make any change in  
RECOMMENDED OPERATING CONDITIONS  
Supply Voltage Range.........................................2.7V to 12V  
Operating Temperature Range.......................-40to +85℃  
circuit design, or specifications without prior notice.  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
2
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
PIN CONFIGURATION  
(TOP VIEW)  
ROUT LOUT N.C. N.C.  
12  
11  
10  
9
13  
14  
8
7
GND  
EN  
MUTER  
VCC  
CP  
15  
16  
6
5
MUTEL  
GND  
CN  
1
2
3
4
PVSS  
RIN N.C. LIN  
TQFN-2.6×1.8-16L  
PIN DESCRIPTION  
PIN  
NAME  
FUNCTION  
1
2, 9, 10  
3
RIN  
N.C.  
LIN  
Right Channel Audio Signals Input.  
No Connection.  
Left Channel Audio Signals Input.  
Negative Supply Voltage Output. Connect one 0.1μF ceramic capacitor from PVSS  
to GND.  
4
PVSS  
5
6
CN  
CP  
Negative Terminal for Charge Pump Flying Capacitor.  
Positive Terminal for Charge Pump Flying Capacitor.  
Power Supply.  
7
VCC  
8, 16  
11  
12  
GND  
LOUT  
ROUT  
Ground.  
Left Channel Audio Signals Output.  
Right Channel Audio Signals Output.  
Enable Control. When EN = “Low”, both RIN to ROUT and LIN to LOUT channels  
will be disconnected, negative charge pump doesn’t work, the SGM4808B will be in  
shutdown state. When EN = “High”, negative charge pump will work, the  
SGM4808B will be in working state, whether the audio signals channel works  
13  
EN  
depends on the logical state of  
or  
.
MUTEL  
MUTER  
14  
15  
Digital Control Pin to Mute Right Audio Signals Channel.  
Digital Control Pin to Mute Left Audio Signals Channel.  
MUTER  
MUTEL  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
3
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
FUNCTION TABLE  
Table 1. Function Table:  
EN  
0
RIGHT CHANNEL WORKING STATE  
NEGATIVE CHARGE PUMP  
MUTER  
X
0
1
Shutdown  
Mute  
Turn off  
Turn on  
Turn on  
1
1
Active  
Table 2. Function Table:  
EN  
0
LEFT CHANNEL WORKING STATE  
NEGATIVE CHARGE PUMP  
MUTEL  
X
0
1
Shutdown  
Mute  
Turn off  
Turn on  
Turn on  
1
1
Active  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
4
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
ELECTRICAL CHARACTERISTICS  
(VCC = 3.3V, Full = -40to +85. Typical values are at TA = +25, unless otherwise noted.)  
PARAMETER  
Analog Switch  
SYMBOL  
CONDITIONS  
TEMP  
MIN  
TYP  
MAX UNITS  
VRIN, VLIN  
VROUT, VLOUT  
,
Analog Signal Range  
On-Resistance  
Full  
-VCC  
+VCC  
V
1
1.25  
1.7  
+25  
Full  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
RON  
Ω
0.03  
0.05  
0.09  
0.12  
0.1  
+25℃  
Full  
On-Resistance Match  
between Channels  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
Ω
Ω
RON  
+25℃  
Full  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
On-Resistance Flatness  
RFLAT(ON)  
0.13  
Digital Inputs  
Input High Voltage  
Input Low Voltage  
Pull-Down Resistor  
Dynamic Characteristics  
VINH  
VINL  
VCC = 2.7V to 12V  
VCC = 2.7V to 12V  
Full  
Full  
1.4  
5.5  
0.4  
V
V
RPULL DOWN  
600  
kΩ  
+25℃  
VRIN or VLIN = 1.0V, RL = 50Ω, CL = 35pF,  
Test Circuit 2  
VRIN or VLIN = 1.0V, RL = 50Ω, CL = 35pF,  
Test Circuit 2  
Turn-On Time  
Turn-Off Time  
tON  
200  
60  
ns  
ns  
+25℃  
+25℃  
tOFF  
f = 1kHz, RL = 32Ω, Signal = 0dBm,  
Test Circuit 3  
f = 1MHz, RL = 50Ω, Signal = 0dBm, CL = 5pF,  
Test Circuit 3  
f = 1kHz, RL = 32Ω, Signal = 0dBm,  
Test Circuit 4  
f = 1MHz, RL = 50Ω, Signal = 0dBm, CL = 5pF,  
Test Circuit 4  
-120  
-80  
Off Isolation  
OISO  
dB  
dB  
+25℃  
+25℃  
-110  
-75  
Channel-to-Channel Crosstalk  
XTALK  
Signal = 0dBm, RL = 50Ω, CL = 5pF,  
Test Circuit 5  
-3dB Bandwidth  
BW  
CON  
Q
160  
30  
MHz  
pF  
+25℃  
+25℃  
+25℃  
Channel ON Capacitance  
Charge Injection  
VG = GND, RG = 0Ω, CL = 1.0nF,  
Test Circuit 6  
500  
pC  
VRIN or VLIN = 2VPP, RL = 600Ω  
VRIN or VLIN = 2VPP, RL = 32Ω  
-80  
-67  
-90  
-78  
-98  
-85  
0.2  
VRIN or VLIN = 1VPP, RL = 600Ω  
Total Harmonic Distortion +  
Noise  
A-Weighting,  
Test Circuit 7  
THD+N  
dB  
ms  
+25℃  
+25℃  
VRIN or VLIN = 1VPP, RL = 32Ω  
VRIN or VLIN = 0.5VPP, RL = 600Ω  
VRIN or VLIN = 0.5VPP, RL = 32Ω  
Start-Up Time  
tSTART  
Switch VEN = 0V to VEN = 1.4V  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
5
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
ELECTRICAL CHARACTERISTICS (continued)  
(VCC = 5V, Full = -40to +85. Typical values are at TA = +25, unless otherwise noted.)  
PARAMETER  
Analog Switch  
SYMBOL  
CONDITIONS  
TEMP  
MIN  
TYP  
MAX UNITS  
VRIN, VLIN  
VROUT, VLOUT  
,
Analog Signal Range  
On-Resistance  
Full  
-VCC  
+VCC  
V
1
1.25  
1.7  
+25℃  
Full  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
RON  
Ω
0.03  
0.05  
0.01  
0.09  
0.12  
0.1  
+25℃  
Full  
On-Resistance Match  
between Channels  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
Ω
Ω
RON  
+25℃  
Full  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
On-Resistance Flatness  
RFLAT(ON)  
0.13  
0.4  
IRIN(ON)  
ILIN(ON)  
IROUT(ON)  
,
,
+25℃  
VRIN or VLIN = -4.5V, 4.5V, VROUT or VLOUT = floating,  
or VRIN or VLIN = floating, VROUT or VLOUT = -4.5V, 4.5V  
Channel ON Leakage Current  
μA  
,
Full  
1
ILOUT(ON)  
Digital Inputs  
Input High Voltage  
Input Low Voltage  
Pull-Down Resistor  
Dynamic Characteristics  
VINH  
VINL  
VCC = 2.7V to 12V  
VCC = 2.7V to 12V  
Full  
Full  
1.4  
5.5  
0.4  
V
V
RPULL DOWN  
600  
kΩ  
+25℃  
VRIN or VLIN = 1.0V, RL = 50Ω, CL = 35pF,  
Test Circuit 2  
VRIN or VLIN = 1.0V, RL = 50Ω, CL = 35pF,  
Test Circuit 2  
Turn-On Time  
Turn-Off Time  
tON  
200  
60  
ns  
ns  
+25℃  
+25℃  
tOFF  
f = 1kHz, RL = 32Ω, Signal = 0dBm,  
Test Circuit 3  
f = 1MHz, RL = 50Ω, Signal = 0dBm, CL = 5pF,  
Test Circuit 3  
f = 1kHz, RL = 32Ω, Signal = 0dBm,  
Test Circuit 4  
f = 1MHz, RL = 50Ω, Signal = 0dBm, CL = 5pF,  
Test Circuit 4  
-120  
-80  
Off Isolation  
OISO  
dB  
dB  
+25℃  
+25℃  
-110  
-75  
Channel-to-Channel Crosstalk  
XTALK  
Signal = 0dBm, RL = 50Ω, CL = 5pF,  
Test Circuit 5  
-3dB Bandwidth  
BW  
CON  
Q
160  
30  
MHz  
pF  
+25℃  
+25℃  
+25℃  
Channel ON Capacitance  
Charge Injection  
VG = GND, RG = 0Ω, CL = 1.0nF,  
Test Circuit 6  
600  
pC  
VRIN or VLIN = 2VPP, RL = 600Ω  
VRIN or VLIN = 2VPP, RL = 32Ω  
-115  
-113  
-110  
-110  
-107  
-105  
0.2  
VRIN or VLIN = 1VPP, RL = 600Ω  
Total Harmonic Distortion +  
Noise  
A-Weighting,  
Test Circuit 7  
THD+N  
dB  
ms  
+25℃  
+25℃  
VRIN or VLIN = 1VPP, RL = 32Ω  
VRIN or VLIN = 0.5VPP, RL = 600Ω  
VRIN or VLIN = 0.5VPP, RL = 32Ω  
Start-Up Time  
tSTART  
Switch VEN = 0V to VEN = 1.4V  
Power Requirements  
300  
0.3  
415  
420  
0.8  
1.2  
+25℃  
Full  
Power Supply Current  
ICC  
VEN = 1.4V  
VEN = 0V  
μA  
μA  
+25℃  
Full  
Power Supply Current in  
Shutdown State  
ICC  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
6
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
ELECTRICAL CHARACTERISTICS (continued)  
(VCC = 12V, Full = -40to +85. Typical values are at TA = +25, unless otherwise noted.)  
PARAMETER  
Analog Switch  
SYMBOL  
CONDITIONS  
TEMP  
MIN  
TYP  
MAX UNITS  
VRIN, VLIN  
VROUT, VLOUT  
,
Analog Signal Range  
On-Resistance  
Full  
-VCC  
+VCC  
V
1
1.25  
1.7  
+25℃  
Full  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
RON  
Ω
0.03  
0.05  
0.05  
0.09  
0.13  
0.1  
+25℃  
Full  
On-Resistance Match  
between Channels  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
Ω
Ω
RON  
+25℃  
Full  
-VCC VRIN or VLIN ≤ VCC - 3V, IROUT or ILOUT = -50mA,  
Test Circuit 1  
On-Resistance Flatness  
RFLAT(ON)  
0.12  
1
IRIN(ON)  
ILIN(ON)  
IROUT(ON)  
,
,
+25℃  
VRIN or VLIN = -11.5V, 11.5V, VROUT or VLOUT = floating,  
or VRIN or VLIN = floating, VROUT or VLOUT = -11.5V, 11.5V  
Channel ON Leakage Current  
μA  
,
Full  
3
ILOUT(ON)  
Digital Inputs  
Input High Voltage  
Input Low Voltage  
Pull-Down Resistor  
Dynamic Characteristics  
VINH  
VINL  
VCC = 2.7V to 12V  
VCC = 2.7V to 12V  
Full  
Full  
1.4  
5.5  
0.4  
V
V
RPULL DOWN  
600  
kΩ  
+25℃  
VRIN or VLIN = 1.0V, RL = 50Ω, CL = 35pF,  
Test Circuit 2  
VRIN or VLIN = 1.0V, RL = 50Ω, CL = 35pF,  
Test Circuit 2  
Turn-On Time  
Turn-Off Time  
tON  
200  
60  
ns  
ns  
+25℃  
+25℃  
tOFF  
f = 1kHz, RL = 32Ω, Signal = 0dBm,  
Test Circuit 3  
f = 1MHz, RL = 50Ω, Signal = 0dBm, CL = 5pF,  
Test Circuit 3  
f = 1kHz, RL = 32Ω, Signal = 0dBm,  
Test Circuit 4  
f = 1MHz, RL = 50Ω, Signal = 0dBm, CL = 5pF,  
Test Circuit 4  
-120  
-80  
Off Isolation  
OISO  
dB  
dB  
+25℃  
+25℃  
-110  
-75  
Channel-to-Channel Crosstalk  
XTALK  
Signal = 0dBm, RL = 50Ω, CL = 5pF,  
Test Circuit 5  
-3dB Bandwidth  
BW  
CON  
Q
160  
30  
MHz  
pF  
+25℃  
+25℃  
+25℃  
Channel ON Capacitance  
Charge Injection  
VG = GND, RG = 0Ω, CL = 1.0nF,  
Test Circuit 6  
800  
pC  
VRIN or VLIN = 2VPP, RL = 600Ω  
VRIN or VLIN = 2VPP, RL = 32Ω  
-115  
-113  
-110  
-110  
-107  
-105  
0.2  
VRIN or VLIN = 1VPP, RL = 600Ω  
Total Harmonic Distortion +  
Noise  
A-Weighting,  
Test Circuit 7  
THD+N  
dB  
ms  
+25℃  
+25℃  
VRIN or VLIN = 1VPP, RL = 32Ω  
VRIN or VLIN = 0.5VPP, RL = 600Ω  
VRIN or VLIN = 0.5VPP, RL = 32Ω  
Start-Up Time  
tSTART  
Switch VEN = 0V to VEN = 1.4V  
Power Requirements  
400  
0.5  
540  
550  
1.2  
1.5  
+25℃  
Full  
Power Supply Current  
ICC  
VEN = 1.4V  
VEN = 0V  
μA  
μA  
+25℃  
Full  
Power Supply Current in  
Shutdown State  
ICC  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
7
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
TYPICAL PERFORMANCE CHARACTERISTICS  
TA = +25, unless otherwise noted.  
Off Isolation vs. Frequency  
Off Isolation vs. Frequency  
0
-20  
0
-20  
-40  
-40  
-60  
-60  
-80  
-80  
-100  
-120  
-140  
-100  
-120  
-140  
VCC = 12V  
RL = 50Ω  
VCC = 5V  
RL = 50Ω  
0.01  
0.1  
1
10  
100  
1000 10000  
0.01  
0.1  
1
10  
100  
1000 10000  
Frequency (MHz)  
Frequency (MHz)  
Crosstalk vs. Frequency  
Crosstalk vs. Frequency  
0
-20  
0
-20  
-40  
-40  
-60  
-60  
-80  
-80  
-100  
-120  
-140  
-100  
-120  
-140  
VCC = 5V  
RL = 50Ω  
VCC = 12V  
RL = 50Ω  
0.01  
0.1  
1
10  
100  
1000 10000  
0.01  
0.1  
1
10  
100  
1000 10000  
Frequency (MHz)  
Frequency (MHz)  
Bandwidth vs. Frequency  
Bandwidth vs. Frequency  
5
0
5
0
-5  
-5  
-10  
-15  
-20  
-25  
-30  
-10  
-15  
-20  
-25  
-30  
VCC = 5V  
RL = 50Ω  
VCC = 12V  
RL = 50Ω  
0.01  
0.1  
1
10  
100  
1000 10000  
0.01  
0.1  
1
10  
100  
1000 10000  
Frequency (MHz)  
Frequency (MHz)  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
8
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
TYPICAL PERFORMANCE CHARACTERISTICS (continued)  
TA = +25, unless otherwise noted.  
Total Harmonic Distortion + Noise vs. Frequency  
Total Harmonic Distortion + Noise vs. Frequency  
-80  
-85  
0
-20  
VCC = 3.3V  
VCC = 3.3V  
RIN/VLIN = 0.5VPP  
RL = 600Ω  
V
RIN/VLIN = 0.5VPP  
V
RL = 32Ω  
-90  
-40  
-95  
-60  
-100  
-105  
-110  
-115  
-120  
-80  
-100  
-120  
-140  
20  
200  
2000  
20000  
20  
200  
2000  
20000  
Frequency (Hz)  
Frequency (Hz)  
Total Harmonic Distortion + Noise vs. Frequency  
VCC = 5V  
Total Harmonic Distortion + Noise vs. Frequency  
VCC = 5V  
-80  
-85  
0
-20  
V
RIN/VLIN = 2VPP  
V
RIN/VLIN = 2VRMS  
RL = 32Ω  
RL = 600Ω  
-90  
-40  
-95  
-60  
-100  
-105  
-110  
-115  
-120  
-80  
-100  
-120  
-140  
20  
200  
2000  
20000  
20  
200  
2000  
20000  
Frequency (Hz)  
Frequency (Hz)  
Total Harmonic Distortion + Noise vs. Frequency  
VCC = 12V  
Total Harmonic Distortion + Noise vs. Frequency  
VCC = 12V  
-80  
-85  
0
-20  
V
RIN/VLIN = 2VPP  
V
RIN/VLIN = 2VRMS  
RL = 32Ω  
RL = 600Ω  
-90  
-40  
-95  
-60  
-100  
-105  
-110  
-115  
-120  
-80  
-100  
-120  
-140  
20  
200  
2000  
20000  
20  
200  
2000  
20000  
Frequency (Hz)  
Frequency (Hz)  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
9
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
TEST CIRCUITS  
IROUT or ILOUT  
V1  
ROUT or LOUT  
RIN or LIN  
VRIN or VLIN  
GND  
RON = V1/IROUT or ILOUT  
Test Circuit 1. On Resistance  
3V  
VIN  
50%  
50%  
VRIN or VLIN  
0V  
ROUT or LOUT  
RIN or LIN  
VOUT  
VIN  
90%  
CL  
90%  
RL  
MUTER  
or MUTEL  
VOUT  
1.4V  
EN  
GND  
tOFF  
tON  
Test Circuit 2. Switching Times (tON, tOFF  
)
VCC  
C
VCC  
RIN or LIN  
ROUT or LOUT  
VOUT  
Source  
Signal  
Control  
RL  
RL  
CL  
GND  
Test Circuit 3. Off Isolation  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
10  
 
 
 
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
TEST CIRCUITS (continued)  
VCC  
C
VCC  
RIN or LIN  
LIN or RIN  
ROUT or LOUT  
RL  
CL  
Source  
Signal  
LOUT or ROUT  
VOUT  
N.C.  
Control  
GND  
RL  
CL  
VRIN or VLIN  
VOUT  
Channel-to-Channel Crosstalk = -20 × log  
Test Circuit 4. Channel-to-Channel Crosstalk  
VCC  
C
VCC  
ROUT or LOUT  
RIN or LIN  
VOUT  
CL  
Control  
Source  
Signal  
GND  
Test Circuit 5. -3dB Bandwidth  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
11  
 
 
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
TEST CIRCUITS (continued)  
3V  
VIN  
RG  
ROUT or LOUT  
RIN or LIN  
VOUT  
0V  
VG  
CL  
ΔVOUT  
VOUT  
MUTER  
or MUTEL  
1.4V  
VIN  
EN  
GND  
Q = ΔVOUT × CL  
Test Circuit 6. Charge Injection (Q)  
VCC  
C
VCC  
ROUT or LOUT  
RIN or LIN  
VOUT  
Source  
Signal  
RL  
Control  
GND  
Test Circuit 7. Total Harmonic Distortion + Noise (THD+N)  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
12  
 
 
Wide Power Supply Range  
SGM4808B  
Audio Click-Pop Noise Eliminator  
APPLICATION INFORMATION  
The SGM4808B can be used at the input or output of audio system to eliminate the click-pop noise. The circuit is  
shown in Figure 1.  
VCC (2.7V ~ 12V)  
0.1μF  
VCC  
R
RIN  
LIN  
ROUT  
LOUT  
Line Out  
or Headset  
Audio DAC  
or Driver  
10μF  
10μF  
L
SGM4808B  
1kΩ  
1kΩ  
EN  
Control  
MUTER  
MUTEL  
CP  
CN  
PVSS  
GND  
0.1μF  
0.1μF  
Figure 1. Typical Application Circuit  
REVISION HISTORY  
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.  
Changes from Original (NOVEMBER 2016) to REV.A  
Changed from product preview to production data.............................................................................................................................................All  
SG Micro Corp  
www.sg-micro.com  
NOVEMBER 2016  
13  
PACKAGE INFORMATION  
PACKAGE OUTLINE DIMENSIONS  
TQFN-2.6×1.8-16L  
NOTES:  
1. All linear dimensions are in millimeters.  
2. This drawing is subject to change without notice.  
SG Micro Corp  
TX00078.001  
www.sg-micro.com  
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-2.6×1.8-16L  
7″  
9.0  
2.01  
2.81  
0.93  
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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