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參數(shù)資料
| 型號： | LA3335 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PLL FM Multiplex Demodulator for 3 V Headphone Stereos and Radio-cassette Recorders |
| 中文描述： | 鎖相環(huán)調(diào)頻多路解調(diào)器3伏耳機(jī)音響和收音機(jī)，錄音機(jī) |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 107K |
| 代理商： | LA3335 |
b)
Connect the connection point of the semifixed resistor connected to pin 4 and the fixed resistor to a frequency counter
through the R
X
of 240 k
. Fig. 2 shows how the error changes as the R
X
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 – R
X
E
f
R
X
–
Figure 2
Ro
6
Output impedance
Figure 3
Co – Attenuation
C
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA3336-RU | FILTER CHIP 26 OHM 6A 0603 |
| LA3336-S | Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
| LA3336-SV | Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
| LA3336-T | Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
| LA3336-U | Hyper 3 mm T1 LED, Non Diffused Hyper-Bright LED |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA3335M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL FM Multiplex Demodulator for 3 V Headphone Stereos and Radio-cassette Recorders |
| 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 |
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