- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358739 > LA8608V (Sanyo Electric Co.,Ltd.) 1.8 V Low-Voltage Narrowband FM-IF System PDF資料下載
參數(shù)資料
| 型號(hào)： | LA8608V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 1.8 V Low-Voltage Narrowband FM-IF System |
| 中文描述： | 1.8 V低電壓窄帶調(diào)頻中頻系統(tǒng) |
| 文件頁(yè)數(shù)： | 10/14頁(yè) |
| 文件大?。?/td> | 310K |
| 代理商： | LA8608V |
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)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)
Noise amplified by this amp passes through the noise detector, and is detected by R and C connected to pin 22. The Schmitt
circuit operates on the basis of this DC, and the Shmitt output appears on pin 13. Because the pass band gain is determined by
R2/R1, changing these resistances makes it possible to vary the Schmitt circuit level to some extent. By varying the level, it is
possible to continue operating Schmitt circuit up to a signal-to-noise ratio of approximately 30 dB on the No. 2 mixer input. To
continue operating Schmitt circuit at a higher S/N ratio, add a resistor between pin 17 and GND. This makes it possible to
increase the signal-to-noise ratio of the input level at which the Schmitt circuit continue operating by approximately 10 dB. (Refer
to Fig. 6.)
Sample application 2:
(1) When an operational amplifier is used in a signal system amplifier, etc., connect a capacitor of about 1000 pF between the
output (pins 17, 19, 21) and GND. This capacitor prevents local oscillation when the signal is clipped on the negative side.
(2) When used in the signal system amplifier, etc. and the dynamic range of the output must be expanded, use the scheme
described below.
S
Misoperation when
Ri < 1 k
Misoperation when
Ri < 12 k
No R
B
With RB
Unit (resistance:
, capacitance: F)
Fig. 6
S/N for noise amp gain and Schmitt trigger
Fig. 7
Fig. 8
1) Use R
to set the output DC voltage to
approximately 1/2V
CC
.
Output DC voltage
2) Add 10 k
between the output pin and
GND.
V
ODC
= V
B
(1 +R
2
R
3
)
V
B
= 1 V
LA8608V
No.4077 - 10/14
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA8610 | Pager Narrow-Band FM-IF Circuit |
| LA8610M | Pager Narrow-Band FM-IF Circuit |
| LA8615M | Narrowband FM IF Amplifiers for Pager Receivers |
| LA8630 | INDUCTOR FERRITE BEAD |
| LA8630M | Low Voltage and Current Dissipation Compandor IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA8610 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Pager Narrow-Band FM-IF Circuit |
| LA8610M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Pager Narrow-Band FM-IF Circuit |
| LA8615M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Narrowband FM IF Amplifiers for Pager Receivers |
| LA8615V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Narrowband FM IF Amplifiers for Pager Receivers |
| LA8630 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Low Voltage and Current Dissipation Compandor IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。