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D8227のメーカーはShaoxing Silicore Technologyです、この部品の機能は「Low Frequency Power Amplifier」です。 |
部品番号 | D8227 |
| |
部品説明 | Low Frequency Power Amplifier | ||
メーカ | Shaoxing Silicore Technology | ||
ロゴ | |||
このページの下部にプレビューとD8227ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
t4U.com SilicoreLOW FREQUENCY POWER AMPLIFIER D8227
heeGENERAL DESCRIPTION
taSD8227 is an audio power IC with built-in
atwo Channels developed for portable radio
.Dcassette tape recorder with power ON/OFF
wwswitch. Thermal shut down protection
w circuit is built in. Because of the parts
Outline Drawing
reduction and DIP (Dual in line package),
mspace merit is remarkable.
.coFEATURES
Uz High Power
t4Pout=2.5W/CH(Typ.) :(Vcc=9V,RL=4Ω,f=1kHz,THD=10%)
Pout=3.0W/CH(Typ.) :(Vcc=9V,RL=3 Ω,f=1kHz,THD=10%)
ez Voltage Gain: Gv=45dB(Typ.) Rf=120 ,f=1kHz
eGv=56.5dB(Typ.) Rf=0 ,f=1kHz
hz Low popping noise at power ON
Sz Small Quiescent Current : ICCQ=21 mA(Typ.) (Vcc=9V Vin=0)
taz Ripple Rejection Ratio : R.R.=-52dB(Typ.)(Vcc=9V fripple=100Hz Rg=600
z Cross Talk : C.T.= -50dB(Typ.)(Vcc=9V f=1kHz Rg=600 )
az Output Noise Voltage : Vno=0.3mVrms(Typ.)(Vcc=9V
Rg=10k
.DBW=20Hz~20kHz)
z Stand-By Switch
wz Soft Clip
wz Built-in thermal shut down protection circuit
wz Best for supply voltage 9V
)
mz Operation supply voltage range : Vcc=5~12V
taSheet4U.coSHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
www.DaCHMC
1/8
1 Page Silicore
TEST CIRCUIT & BLOCK DIAGRAM
D8227
*(1) This IC can be used without coupling capacitor (CIN),If volume slide noise occurred by
input offset voltage is undesirable, it needs to use the capacitor(CIN).
*(2) The condenser between the
pin and the GND(C11)is for reducing pop noise when the
power ON/OFF switch (SW1)is set to ON/OFF.
APPLICATION INFORMATION AND APPLICATION METHOD
1. ADJUSTMENT OF VOLTAGE GAIN
The voltage gain Gv is obtained as follows
by R1,R2 and Rf in Fig.1.
Gv=20log((Rf+R1+R2)/(Rf+R1))
When Rf=0
Gv=56.5dB(Typ.)
When Rf=120Ω Gv=45dB(Typ.)
By increasing Rf , reduction of Gv is possible ,
However, since the feedback
Fig 1.
increase is liable to produce oscillation , it is recommended to use this at 40dB or
over.
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
3/8
3Pages Silicore
D8227
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
6/8
6 Page | |||
ページ | 合計 : 8 ページ | ||
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PDF ダウンロード | [ D8227 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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D8227 | Low Frequency Power Amplifier | Shaoxing Silicore Technology |