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參數(shù)資料
| 型號： | LM1863 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | AM Radio System for Electronically Tuned Radios |
| 中文描述： | AM收音機(jī)系統(tǒng)的電子調(diào)諧收音機(jī) |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 268K |
| 代理商： | LM1863 |
Layout Considerations
Although the pinout of the LM1863 has been chosen to min-
imize layout problems, some care is required to insure prop-
er performance. If the LM1863 is used with a loopstick an-
tenna, care in the placement of C3 must be observed in
order to minimize tweet radiation. Orient C3 parallel to the
axis of the loopstick and as far away as possible. Keep C3
close to the IC. The ground on C6 should be located near
the ground terminal of the 450 kHz ceramic filter. C11
should be located near Q2 and C12 should be located near
the IC. Also, the resonator on Pin 7 and resistor R2 should
be located near the IC in order to minimize tweet radiation.
The mixer output, Pin 10 and the IF input, Pin 11, traces
should be as short as possible to prevent stray pick up from
the resonator.
Applications Information
(See typical application and LM1863 schematic diagram.)
STOP DETECTOR
There are two criteria that determine when an electronically
tuned radio is tuned to a valid station. The first criterion is
that the incoming signal be of sufficient strength to be listen-
able. The second criterion requires that the radio be tuned
PC Layout (Component Side)
TL/H/5185–22
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM1863M | AM Radio System for Electronically Tuned Radios |
| LM1865 | Advanced FM IF System |
| LM1865M | Advanced FM IF System |
| LM1865N | Advanced FM IF System |
| LM1868 | Radio System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1863M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AM Radio System for Electronically Tuned Radios |
| LM1863N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AM Receiver Circuit |
| LM1863N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AM Receiver Circuit |
| LM1865 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced FM IF System |
| LM1865M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced FM IF System |
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