- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358737 > LA7578N (Sanyo Electric Co.,Ltd.) IF Signal Processing (Super PLL-II VIF + SIF) Circuit for TVs and VCRs(用于電視機(jī)/VCR應(yīng)用的IF信號(hào)處理（超鎖相環(huán)II VIF+SIF）電路) PDF資料下載
參數(shù)資料
| 型號(hào)： | LA7578N |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | IF Signal Processing (Super PLL-II VIF + SIF) Circuit for TVs and VCRs(用于電視機(jī)/VCR應(yīng)用的IF信號(hào)處理（超鎖相環(huán)II VIF+SIF）電路) |
| 中文描述： | 中頻信號(hào)處理（超鎖相環(huán)-Ⅱ資料表格應(yīng)力強(qiáng)度因子）的電視和錄像機(jī)電路（用于電視機(jī)/錄像機(jī)應(yīng)用的中頻信號(hào)處理（超鎖相環(huán)二資料表格強(qiáng)度因子）電路） |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大?。?/td> | 237K |
| 代理商： | LA7578N |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)當(dāng)前第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
Fig. 21
Fig. 22
Fig. 23
Pins 15 and 16 (VCO tank)
These pins are for the VCO tank circuit.
The tank circuit capacitor is designed to be 20 to 27 pF. 24 pF
is recommended. The VCO tank capacitor can be either built
into the coil or a component in chip form. This circuit protects
VCO from external influences.
Pin 17 (composite video output)
This is an output pin for the video signal including a 4.5 MHz
component.
Although this is an emitter output, a resistor should be
connected between pin 17 and GND in order to attain
satisfactory drive capability.
V
CC
= 12 V
V
CC
= 9 V
R
^
1.2 k
R
^
1 k
Pin 18 (APC filter)
This is the APC filter pin.
APC time constant switching is performed within the IC. When
locked, VCO is controlled by route A, and the APC loop gain
decreases. When unlocked or when there is a weak electric
field, VC is controlled by route B and the APC loop gain
increases, broadening the pull-in range. The recommendations
for this APC filter are: R = 47 to 150
;
C = 0.47 μF.
LA7578N
No.4952-14/18
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA7583 | IF Signal Processing Circuit (A 2 C PLL VIF + SIF) for TVs and VCRs(用于電視機(jī)/VCR應(yīng)用的IF信號(hào)處理（自動(dòng)調(diào)整控制 鎖相環(huán) VIF+SIF）電路) |
| LA7605M | Monolithic Linear IC Video Signal Processor |
| LA76070 | NTSC Color Television IC |
| LA76075 | NTSC Color Television Sets |
| LA7615 | Single-Chip NTSC Color TV IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA7583 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:IF Signal Processing Circuit (A2C PLL VIF + SIF) for TVs and VCRs |
| LA7590 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| LA7600 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA7601 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| LA7601W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。