- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358728 > LA3430 (Sanyo Electric Co.,Ltd.) PLL FM MPX Stereo Demodulator with Pilot Canceler for Car Stereo Use(用于汽車立體聲PLL FM MPX立體聲解調(diào)器(帶引導(dǎo)消除器)) PDF資料下載
參數(shù)資料
| 型號(hào)： | LA3430 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PLL FM MPX Stereo Demodulator with Pilot Canceler for Car Stereo Use(用于汽車立體聲PLL FM MPX立體聲解調(diào)器(帶引導(dǎo)消除器)) |
| 中文描述： | 盈豐鎖相環(huán)調(diào)頻立體聲解調(diào)器（用于汽車立體聲盈豐鎖相環(huán)調(diào)頻立體聲解調(diào)器與試驗(yàn)的汽車音響用消器（帶引導(dǎo)消除器）） |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 299K |
| 代理商： | LA3430 |
LA3430
No.1408–7/12
Fig. 8 shows the relation between voltages impressed on pin 7 and rates (%) of high cut (HCC). When IF meter
output voltage characteristics and region B, S/N characteristics, of Fig. 2 have been obtained, S/N improvement
by HCC can be drawn in a way similar to drawing SNC characteristics.
Fig. 2 shows typical meter outputs of a quadrature detection IF amplifier IC. (Fig. 1 shows data for the LA1140,
LA1230, and LA1231N) HCC characteristics have been designated to permit region B improvements when the IC
is directly connected to HCC (pin 7) terminal of the LA3430. The infinitesmal control currents at pin 7, similar to
pin 8, do not affect meter outputs.
(4) SNC and HCC connection circuits when coupled with the IF stage
Fig. 1 shows sample S/N characteristics vs. antenna inputs when SNC and HCC are connected with the IF stage
by an external circuit.
(5) S/N improvements in region C of Fig. 1
Because S/N ratios deteriorate even further in the region C of Fig. 1, it is better to improve the S/N in this region
with IF mutings. The LA1140 is available to linearly vary the IF muting. Employment of the LA3430 together
with the LA1140 further enhances S/N improvement.
(6) Using the HCC terminal for muting
Mutings in the neighborhood of 37dB are feasible by utilizing HCC functions as muting functions when used in
home stereos and no need exists to suppress treble noises. Fade-in and fade-out of mutings, permitting delightful,
shock-noise-free muting, are possible by providing a time constant to the pin 7 control.
(7) VCO damping
VCO oscillations can be damped by applying a voltage not less than 7V to the HCC terminal (pin 7) to induce a
monaural mode. At this time, both SNC and HCC are in an off mode. Fig. 9 shows flow-in current by voltages
applied to pin 7.
(8) Forced monaural
By disconnecting LED lamp at pin 10 from VCC lamp, reception mode forced monaural function can be attained.
(Stereo lamp is turned OFF. Pilot cancel and HCC function are held.)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA3433 | Car Stereo-Use PLL FM MPX Stereo Demodulator with Pilot Canceler(用于汽車立體聲PLL FM MPX立體聲解調(diào)器(帶引導(dǎo)消除器)) |
| LA3450 | PLL FM MPX Stereo Demodulator with Adjustment-Free VCO and Measure Against Adjacent Channel Interference(可自由調(diào)整VCO和帶防止附近通道干涉措施的PLL FM MPX立體聲解調(diào)器) |
| LA3460 | FM NC + MPX Demodulator for Car Stereo Tuners |
| LA3460M | FM NC + MPX Demodulator for Car Stereo Tuners |
| LA35-NP | Current Transducer LA 35-NP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA3430M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL FM MPX Stereo Demodulator with Pilot Canceler For Car Stereo Use |
| LA3430M-UDEL-AE | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LA3433 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Car Stereo-Use PLL FM MPX Stereo Demodulator with Pilot Canceler |
| LA3440 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| LA3450 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL FM MPX Stereo Demodulator with Adjustment-Free VCO And Measure Against Channel Interference |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。