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參數資料
| 型號： | LA3246 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 音頻放大器 |
| 英文描述： | Stereo Preamplifier for Compact Double Cassette Playback-only Use |
| 中文描述： | 立體聲放大器的緊湊型雙卡式播放，僅使用 |
| 文件頁數： | 6/13頁 |
| 文件大?。?/td> | 441K |
| 代理商： | LA3246 |
(7) Output waveform starting time
When supply voltage V
CC
is switched ON, the amplifier output (pins 4, 17) will rise. Output waveform ON time t
s
can be
varied by capacitor Cr connected to pin 12.
Refer to Data Cr – t
s
.
The minimum value of Cr is 47 μF.
The switch level at V
CC
= 6.0 V is shown below.
(8) Electronic select switching level
Pin
Switch Mode
Switching Level
Clamp Voltage
Control Current
typ (flow-in)
(at operation
finish)
2 μA
2 μA
2 μA
Mode
Operation Start
Operation
Finish
(+)
(–)
6
9
Normal/Metal
Forward/Reverse
Normal/Higher
2.1 V
2.1 V
2.1 V
2.4 V
3.1 V
2.4 V
3.7 V
3.4 V
3.7 V
Metal
Reverse
Higher
Normal
Forward
Normal
15
As shown above, there is a difference in the switching level at three control pins (6, 9, 15) between operation start and
operation finish.
.
Switching level and mode at each pin (experimental value)
Example of rise waveform at pin 4 (or 17)
Switching level (reverse) on pin 9 at V
CC
= 6.0 V, Ta = 25°C
(Metal) (Higher)
Switching level region at pins 6, 15.
LA3246
No.2651-6/13
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