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參數(shù)資料
| 型號： | LA1193M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | High-Performance FM Front End for Car Radios |
| 中文描述： | 高性能調(diào)頻前端的汽車收音機 |
| 文件頁數(shù)： | 8/21頁 |
| 文件大?。?/td> | 766K |
| 代理商： | LA1193M |
1. Oscillator Circuit
Steps were taken to prevent AMR degradation during earlier product type
AGC operation, since the local oscillator block in this IC has independent
Vd (pin 5) and ground (pin 3) connections.
This is a Colpitts oscillator and has the same structure as that used in
earlier circuits. The oscillation level and intensity are changed by
capacitors C
2-4
, C
4
and C
P
.
2. Local Oscillator Buffer Output
This buffer is an emitter follower circuit.
If desired, the buffer efficiency can be increased by inserting a resistor
between pin 1 and ground to pass more current through the buffer
transistor. However, this current must be limited so that Pdmax for the
package is not exceeded.
3. Interference Characteristics
The LA1193M incorporates a newly developed 3D-AGC (triple dimension) circuit. This circuit allows three-signal
interference characteristics (inter-modulation characteristics) and two-signal sensitivity suppression characteristics to
be provided at the same time, a combination of characteristics previously thought difficult to achieve.
Inter-Modulation Characteristics
The LA1193M prevents inter-modulation distortion by applying two wide-band AGC circuits.
No. 4715-8/21
LA1193M, 1193V
Figure 1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA1193M_08 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:High-Performance FM Front End |
| LA1193V | 制造商:SANYO Semiconductor Co Ltd 功能描述:AUDIO TUNER, 20 Pin Plastic SMT |
| LA119B-4G-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA119B-4G-PF-0 | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA119B-XGGH-PF-0 | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
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