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參數資料
| 型號： | LA70020 |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 6 CHANNEL, VIDEO PREAMPLIFIER, PDIP36 |
| 封裝： | 0.400 INCH, SDIP-36 |
| 文件頁數： | 2/13頁 |
| 文件大小： | 215K |
| 代理商： | LA70020 |
Switching Video Trick Mode with Pin 7
GND < pin 7 level - DC < 1.0 V: TRICK2
1.0 V < pin 7 level - DC < 3.0 V: NORMAL
3.0 V < pin 7 level - DC < 5.0 V: TRICK2
NORMAL Mode
Two channels selected with pin 9 (EP/SP): ON
Envelope comparator: OFF
TRICK Modes
All four channels: ON
Envelope comparator: OFF
Difference between TRICK1 and TRICK2 modes
TRICK1 is a special playback mode using the following path
Envelope comparator OUT (pin 8)
→ Servo (microcontroller) → Pin 3 (HA) → HA-SW
TRICK2 provides SP searching
Envelope comparator OUT
→ HA-SW
HA-SW (EP/SP mode switch): Pin 9
GND < pin 9 level - DC < 1.5 V: SP mode
1.5 V < pin 9 level - DC < 5 V: EP mode
Video Synchronization of HA Switching Timing during Playback with H-SYNC Signal
During playback, the LA70020’s video circuits synchronize the HA-SW switching timing shown in the following figure
with the H-SYNC signal from pin 11. (Other EP/SP switching takes place in real time.)
The hi-fi playback amplifier’s gain is approximately 2.4 dB higher in EP mode than in SP mode.
SP: 75.0 dB
EP: 77.4 dB
No. 5711-10/13
LA70020, 70020M
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相關代理商/技術參數 |
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|---|---|
| LA70020M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Recording/Playback Amplifier for VHS VCRs |
| LA7003 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA7003S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA7005 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA70056T-MPB-E | 制造商:ON Semiconductor 功能描述:HEAD AMPLIFIER FOR DVC |
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