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BA4424N 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BA4424N은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 BA4424N 자료 제공

부품번호 BA4424N 기능
기능 FM / TV front end
제조업체 ROHM Semiconductor
로고 ROHM Semiconductor 로고


BA4424N 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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BA4424N 데이터시트, 핀배열, 회로
Audio ICs
FM / TV front end
BA4424N
The BA4424N is a monolithic IC designed for FM front end use. It consists of an RF amplifier circuit, mixer circuit, local
oscillation circuit, IF buffer amplifier, and a variable capacitor-diode for AFC.
FFeatures
1) An RF amplifier, mixer, local oscillator, IF buffer am-
plifier, and AFC diode are included on-chip.
2) Reception of VHF terrestrial TV channels is possible.
3) Uses a double balance mixer to improve intermo-
dulation characteristics.
4) Includes a clamp diode in the mixer output.
5) Local oscillation buffer on-chip for improved re-
sponse to strong input.
6) The output impedance of the IF buffer amplifier is
matched with the ceramic filter impedance at 330.
FAbsolute maximum ratings (Ta = 25_C)
7) A resistive load can also be used for the mixer out-
put.
8) Mixer input coupling capacitor included on-chip.
9) Includes a feedback capacitor for the local oscilla-
tion circuit.
10) Compact 9-pin SIP package. Pins arranged for
convenient mounting.
FRecommended operating conditions (Ta = 25_C)
48




BA4424N pdf, 반도체, 판매, 대치품
Audio ICs
BA4424N
(2) Mixer circuit
The mixer circuit is a double balance type with minimal
OSC leakage and little spurious interference. The mixer
output includes a diode limiter for improved response to
strong input signals.
(4) IF buffer amplifier circuit
The IF buffer amplifier consists of an emitter-follower am-
plifier circuit. The output impedance is set in the IC to
330, and it can be directly connected to a ceramic filter.
In addition to an IFT, a resistive load can also be used for
the mixer output load. However, take care in this case as
the gain will fall.
(3) Local oscillation circuit
The local oscillation circuit is a Colpitts circuit with
grounded collector. The capacitor between the base and
emitter and the capacitor between the collector and emit-
ter which form the oscillation circuit are included on the
IC. A buffer has been added for input to the mixer circuit
to protect the circuit when strong input is present. R8 is
to prevent spurious radiation. Take care when setting the
value.
(5) Variable capacitor-diode for AFC
A variable capacitor-diode is included in the IC for AFC.
Utilize the FM detection output as AFC signal. The anode
is connected to ground.
51

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BA4424N 전자부품, 판매, 대치품
Audio ICs
FExternal dimensions (Units: mm)
BA4424N
54

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구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

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관련 데이터시트

부품번호상세설명 및 기능제조사
BA4424

FM / TV front end

ROHM Semiconductor
ROHM Semiconductor
BA4424N

FM / TV front end

ROHM Semiconductor
ROHM Semiconductor

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