參數(shù)資料
型號(hào)： LA1862M
廠商： Sanyo Electric Co.,Ltd.
英文描述： Single-chip Tuner System for Car Stereo(用于汽車(chē)立體聲的單芯片調(diào)諧器)
中文描述： 單芯片調(diào)諧器的汽車(chē)音響系統(tǒng)（用于汽車(chē)立體聲的單芯片調(diào)諧器）
文件頁(yè)數(shù)： 15/27頁(yè)
文件大?。?/td> 683K
代理商： LA1862M
4.
The following figure illustrates one possible circuit design using both the IF count buffer and the SD output circuit.
Noise Canceller Block
1.
The resistor and capacitor connected to pin 6 determine
the noise canceller sensitivity.
The resistor and capacitor connected to pin 7 determine
the noise AGC.
Pin 9 is the gate trigger output. The resistor and capacitor
connected to pin 9 determine the length of time that the
gate is open.
The resistor and capacitor connected to pins 10 and 11 are
for holding the input signal level when the noise canceller
gate operates. The storage time depends on the time that
the gate is open. The time constant for the RC circuit on
pins 10 and 11 must, therefore, be such that the output
retention signal level does not drop during this interval.
2.
3.
4.
5.
Pin 26 is the noise canceller input. An appropriate input level is 250 mVrms for 100% dev and fm = 1 kHz. Excessive input
can exceed the noise canceller dynamic range, increasing the THD. Insufficient input, on the other hand, lowers the
signal-to-noise ratio and reduces pilot lamp sensitivity.
IF count buffer output
Apply 5 V for seek
SD output
Noise canceller input waveform
Noise canceller output waveform
Output retention
(storage)
LA1862M
No. 4092- 15/27
相關(guān)PDF資料
PDF描述
LA1862 Single-Chip Tuner System for Car Stereo
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LA1875M Single-chip, Electronic Tuner for Car Stereo(用于汽車(chē)立體聲的單芯片電子調(diào)諧器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LA1867NM 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Car Radio Single-Chip Tuner System
LA1867NM-MPB-E 制造商:ON Semiconductor 功能描述:
LA186B-9SEF9UG-3-PF 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA186B-9SEF-PF 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
LA186B-DBK-2-PF 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY
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