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CD8227GP PDF 데이터시트 ( Data , Function )

부품번호 CD8227GP 기능
기능 LOW FREQUENCY POWER AMPLIFIER
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CD8227GP 데이터시트, 핀배열, 회로
SUM
CD8227GP
LOW FREQUENCY POWER AMPLIFIER
GENERAL DESCRIPTION
CD8227GP is audio power IC with built-in
two Channels developed for portable radio
cassette tape recorder with power ON/OFF
switch. Thermal shut down protection
circuit is built in. Because of the parts
reduction and DIP (Dual in line package),
space merit is remarkable.
Outline Drawing
F E AT U R E S
z High Power
Pout=2.5W/CH(Typ.) :(Vcc=9V,RL=4 ,f=1kHz,THD=10%)
Pout=3.0W/CH(Typ.) :(Vcc=9V,RL=3 ,f=1kHz,THD=10%)
z Vo ltage Gain : Gv=45dB(Typ.) Rf=120 ,f=1kHz
Gv=56.5dB(Typ.) Rf=0 ,f=1kHz
z Low popping noise at power ON
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z Small Quiescent Current : ICCQ=21mA(Typ.) (Vcc=9V Vin=0)
z 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 )
z Output Noise Voltage : Vno=0.3mVrms(Typ.)(Vcc=9V
Rg=10k
BW=20Hz~20kHz)
z Stand-By Switch
z Soft Clip
z Built-in thermal shut down protection circuit
z Best for supply voltage 9V
z Supply voltage range : Vcc=5~12V
)
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CD8227GP pdf, 반도체, 판매, 대치품
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CD8227GP
2. THERMAL SHUT-DOWN CIRCUIT
The thermal shut-down circuit is built in for the purpose of preventing the
destruction of IC due to the abnormal temperature rise when the heat radiation is
insufficient.
The operation temperature is set at radiation Fin temperature 175°C(Typ.)
At this temperature or over the bias is interrupted to prevent the destruction of IC.
3. INPUT STAGE
The input circuit of this IC is as
shown in Fig.2. PNP TR: Q1 is provided
in the input circuit so as to make its
usage possible without the input
coupling capacitor.
However , at pins
and ,max
60mV offset voltage is produced.
Application after checking volume
slide noise is recommended.
For cutting the volume slide noise,
Insert the input capacitor: CIN in series
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to interrupt the DC component
Fig.2
4. OSCILATION PREVENTIVE MEASURES
For oscillation preventive capacitor C6 and C7 between the output terminal and GND,
it is recommended to use Polyester film capacitor having good characteristics for
temperature and for high frequency.
Since the characteristics of the capacitor is liable to be influenced by the
temperature, use this capacitor after the temperature test to check the oscillation
allowance.
In addition, as the position of the electrolytic capacitor has a remarkable influence
on the oscillation ,connect C10 to Vcc at the nearest possible position from power
GND.
At using this application with the voltage gain reduced, oscillation is liable to be
produced. Apply the capacitor after checking enough for its capacity, type and
mounting position.
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CD8227GP 전자부품, 판매, 대치품
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CD8227GP
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관련 데이터시트

부품번호상세설명 및 기능제조사
CD8227GP

2.5W x 2 Dual Audio Power Amp

ETC
ETC
CD8227GP

LOW FREQUENCY POWER AMPLIFIER

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