Datenblatt-Suchmaschine für elektronische Bauteile |
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LA7583 Datenblatt(PDF) 8 Page - Sanyo Semicon Device |
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LA7583 Datenblatt(HTML) 8 Page - Sanyo Semicon Device |
8 / 15 page Continued from preceding page. Pin No. Symbol Circuit Configuration Description 4 IF AGC Pin 4 is the 1st IFAGC filter pin. This filter smoothes out the peaks detected in the signal by the AGC detector, and generates the AGC voltage. The 2nd AGC filter (lag lead filter) is built in using filter technology. The cutoff frequency is approximately 500 Hz. . AGC filter constants and AGC speed Medium-speed AGC: R1 = 330 k Ω C1 = 0.1 µF High-speed AGC: R1 = 470 k Ω C1 = 0.056 µF 5 6 VIF INPUT Pins 5 and 6 are the VIF amplifier input pins. The VIF amplifier has three stages, each of which uses a C cut, so when used in conjunction with a SAW filter, DC cut by a capacitor becomes unnecessary. Ri = 1.1 k Ω Ci=3pF 9 1st SIF INPUT Pin 9 is the 1st SIF input pin. Input is such that DC cut must be performed using a capacitor. When a SAW filter, etc. is used in the input circuit, an L that is used to neutralize the SAW filter output capacitance and the IC input capacitance serves to improve the 1st SIF sensitivity. Continued on next page. LA7583 No.5177-8/15 |
Ähnliche Teilenummer - LA7583 |
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Ähnliche Beschreibung - LA7583 |
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