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參數資料
| 型號： | LA7510 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PSIP9 |
| 封裝： | SIP-9 |
| 文件頁數： | 4/5頁 |
| 文件大小： | 132K |
| 代理商： | LA7510 |
LA7510
No.2866-4/5
Functional Description
1. IF Amplifier
As shown in figure 1, the IF amplifier is a 3-stage balanced circuit. The AGC detector output controls the gain of all
three stages.
2. AGC Detector
The AGC detector, shown in figure 2, is a peak-detection type circuit. Pin 3 is the peak-detection filter capacitor
connection.
3
1k
Ω
2k
Ω
10k
Ω
4
VCC
Video
Signal
to AGC AMP
Figure 2
3. Transistor Detector and Video Amplifier
The detector circuit is shown in figure 3. The balanced IF signals from the IF amplifier and applied separately to the
bases of the differential pair.
The detector output is taken from the emitters of the differential pair, smoothed by the filter on pin 9, and amplified by
the video amplifier. The video signal (
≈ 0.85/ Vp-p) and sound IF signal are output on pin 6 via a 330Ω resistor.
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相關代理商/技術參數 |
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|---|---|
| LA-75-100 | 制造商:CANADIAN SHUNT 功能描述:SHUNT |
| LA7520 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VIF+SIF Circuit for TV, VTR Applications |
| LA7520N | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Linear IC |
| LA7521 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VIF+SIF Circuit for TV, VTR Applications |
| LA7521N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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