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參數(shù)資料
| 型號(hào)： | LA7415 |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 4 CHANNEL, VIDEO AMPLIFIER, PDIP30 |
| 封裝： | SDIP-30 |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大?。?/td> | 199K |
| 代理商： | LA7415 |
2. Envelope Detector Characteristics: pin 8
The LA6529M includes an on-chip playback signal envelope detector circuit used to achieve automatic tracking
adjustment with essentially linear characteristics.
Envelope Detector Characteristics (design target values) f = 4 MHz
3. Record Amplifier Gain Control
The LA6529M achieves an adjustment-free record current by adding an AGC circuit in the record amplifier block. The
record current can be modified using the circuit shown below.
(1) REC Current.Adj2: When open
The pin 13 DC level is set to 1/2 VCC (about 2.5 V) by an internal bias and the record current is determined by RO1.
Design values: RO1: 1.5 k = 15.6 mAp-p (SP) (per channel)
= 12.3 mAp-p (EP)
(2) REC Current.Adj2: When used
The value determined by RO1 can be adjusted from –6.0 dB to +3.5 dB by applying a control DC level (1 to 4 V) to pin 13.
(Reference)
The circuit below can be used to apply the DC control level to pin 13.
This allows 9 modes (1 to 4 V) to be applied.
No. 5647-6/12
LA7415
SP + external 18 k resistor
Pin 10 playback amplifier output level (mVp-p)
Pin 8 + external 18 k resistor
Design values
Microcontroller
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| LA7416 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Playback Amplifier and Record Amplifier for VHS VCRs |
| LA7416M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Playback Amplifier and Record Amplifier for VHS VCRs |
| LA74207FN-MPB-E | 制造商:ON Semiconductor 功能描述:DVC AUDIO INTERFACE - Trays |
| LA74207FN-TBM-E | 制造商:ON Semiconductor 功能描述:DVC AUDIO INTERFACE - Tape and Reel |
| LA7425 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:NTSC Format Single-Chip Processing IC for VHS VCR Products |
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