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參數(shù)資料
| 型號： | LA3335M |
| 元件分類： | 接收器 |
| 英文描述： | FM, AUDIO DEMODULATOR, PDSO10 |
| 封裝： | MFP-10 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 220K |
| 代理商： | LA3335M |
b)
Connect the connection point of the semifixed resistor connected to pin 4 and the fixed resistor to a frequency counter
through the RX of 240 k. Fig. 2 shows how the error changes as the RX value is decreased.
3.
Separation setting mothod
The LA3335M is so designed that the sub-signal gain is approximately 1.25 times as high as the main signal gain. The
separation can be set by attenuating the sub-signal of the FM detection output. (See Figure 3)
The value of capacitor Co depends on the attenuation of the sub-signal of the FM detection output and the IF IC output
impedance Ro. Fig. 4 shows the value of separation setting capacitor Co when Ro is set to 3 k
.
For example, when the attenuation of sub-signal of the IF IC output is 0.9 time that of the main signal, it is seen from
Figure 4 that the value of Co is approximately 500 pF.
Figure 4
F–RX
Error
,
f–%
RX –
Figure 2
Ro
6 Output impedance
Figure 3
Co – Attenuation
Capacitor
value,
Co
–
p
F
Vs = Sub-signal peak value
Vm = main signal peak value
Separation : 35 to 40 dB,
set to double hump response.
Input sub-signal attenuation,m–dB
LA3335M
No.2619-4/6
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| LA3370 | FM, AUDIO DEMODULATOR, PZIP16 |
| LA3373 | FM, AUDIO DEMODULATOR, PDIP16 |
| LA3375 | SPECIALTY CONSUMER CIRCUIT, PZIP16 |
| LA3376 | SPECIALTY CONSUMER CIRCUIT, PZIP16 |
| LA3401 | AM/FM, AUDIO DEMODULATOR, PDIP22 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LA3335MC-AH | 制造商:ON Semiconductor 功能描述:3V PORTABLE RECORDER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / 3V PORTABLE RECORDER |
| LA3336 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Hyper 3MM (T1) LED/Non Diffused Hyper-Bright LE |
| LA3336-RU | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
| LA3336-S | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
| LA3336-SV | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
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