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SD7408 PDF даташит

Спецификация SD7408 изготовлена ​​​​«Silan» и имеет функцию, называемую «2×10W CLASS-D AUDIO POWER AMPLIFIER».

Детали детали

Номер произв SD7408
Описание 2×10W CLASS-D AUDIO POWER AMPLIFIER
Производители Silan
логотип Silan логотип 

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SD7408 Даташит, Описание, Даташиты
SD7408
2×10W CLASS-D AUDIO POWER AMPLIFIER
DESCRIPTION
SD7408 is a 2×10W analog input Class-D audio power amplifier for
driving bridged-tied stereo speakers.
Thanks to the high efficiency and HSOP-28 / ELQFP-48 Packages,
no heatsink is require.
Furthermore, the filterless operation allows a reduction in the external
component count.
FEATURES
* Output Power:
2×9.5W @ VCC=12V, RL=8, THD=10%;
2×10.5W @ VCC=17V, RL=16, THD=10%
* Supply Voltage: 8.5V to 18V
* Efficiency: Up to 90%
* Four Selectable,Fixed Gain Settings of 15.3, 21.2, 27.2, 31.8dB
* Differential Inputs
* Filterless Operation
* Shutdown Function
* Fully Protected against shorts to VCC, GND and OUT-to-OUT
* Thermal Protection
APPLICATIONS
* Multimedia System
* LCD Monitor and TV
ORDERING INFORMATION
Part No.
SD7408
SD7408TR
SD7408LS
SD7408LSTR
Package
HSOP-28-375-0.8
HSOP-28-375-0.8
ELQFP-48-7×7-0.5
ELQFP-48-7×7-0.5
Marking
SD7408
SD7408
SD7408LS
SD7408LS
Material
Pb free
Pb free
Pb free
Pb free
Packing
Tube
Tape & Reel
Tray
Tape & Reel
REV:1.0 2010.05.17
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SD7408 Даташит, Описание, Даташиты
SD7408
BLOCK DIAGRAM
RINN
RINP
DIFF AMP
MODULATOR
GAIN0
GAIN 1
GAIN
CONTROL
OSCILLATOR
LINN
LINP
DIFF AMP
MODULATOR
VCLAMPR
BSRN
ROUTN
H- BRIDGE
ROUTP
BSRP
ROSC
COSC
BSLP
LOUTP
H- BRIDGE
LOUTN
BSLN
VCLAMPL
ABSOLUTE MAXIMUM RATINGS
Characteristics
Power Supply
Load Impedance
Total Power Dissipation
Storage Temperature
Operating Ambient Temperature
Junction Temperature
Thermal Resistance from Junction to Ambient
Symbol
AVCC
PVCC
RL
Pdiss
Tstg
Tamb
Tj
Rth(j-a)
Rating
20
6
2.5
-55~+150
-40~+85
+150
SD7408
SD7408LS
30
50
Unit
V
W
°C
°C
°C
°C/W
°C/W
REV:1.0 2010.05.17
Page 2 of 13









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SD7408 Даташит, Описание, Даташиты
SD7408
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VCC=12V; RL=8; f=1KHz; Tamb=25°C)
Characteristics
Supply Voltage
Quiescent Supply Current
Quiescent Supply Current In
Shutdown Mode
5V Internal Supply Voltage
2.5V Bias Voltage
Drain-Source On-State
Resistance
Switching Frequency
Symbol
AVCC
PVCC
IQ
IQ(SD)
AVDD
V2P5
RDS(on)
fsw
Output Power
PO
Total Harmonic Distortion
THD
Efficiency
η
Power Supply Rejection Ratio
PSRR
Output Noise
Vno
Channel Separation
CS
Channel Balance
CB
Thermal Point
Thermal Hystersis
Shutdown Function (SHUTDOWN)
High-Level Input Voltage
VIH
Low-Level Input Voltage
VIL
High-Level Input Current
IIH
Low-Level Input Current
IIL
Turn On Time
ton
Turn Off Time
toff
Test conditions
SD=2V, filterless operation
and no load
SD=0V
IL=10mA, SD=2V,
VCC=8.5V~18V
No load
IO=1A, High side
IO=1A, Low side
Total
Set by ROSC and COSC
THD=1%, RL=8
THD=10%, RL=8
THD=1%, RL=16,
VCC=17V
THD=10%, RL=16,
VCC=17V
PO=1W, RL=8
PO=1W, RL=16,
VCC=17V
PO=9.5W, RL=8
PO=10W, RL=16,
VCC=17V
200mVPP ripple from 20Hz
to 1kHz, GV =15.6dB,
Inputs ac-coupled to GND
20Hz to 22kHz, A-weighted
filter, GV =15.6dB
PO=1W, GV=15.6dB
PO=1W, GV=15.6dB
VI=VCC=18V
VI=0V, VCC=18V
C(V2P5)=0.47μF, SD=2V
C(V2P5)=0.47μF, SD=0.8V
Min.
8.5
4.5
200
2
Typ.
12.0
10
1.0
5.0
2.5
300
300
600
7.5
9.5
8.5
10.5
0.1
0.1
90
94
-65
-75
-70
0.1
150
20
16
60
Max.
18.0
Unit
V
15 mA
25 μA
5.5 V
V
m
800
300 kHz
W
0.3
%
0.3
%
dB
dBVrms
dB
1 dB
°C
°C
V
0.8 V
10 μA
1 μA
ms
μs
REV:1.0 2010.05.17
Page 3 of 13










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