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参数资料
| 型号： | LA3241 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2 CHANNEL, AUDIO PREAMPLIFIER, PDIP24 |
| 封装： | 0.300 INCH, SDIP-24 |
| 文件页数： | 12/15页 |
| 文件大小： | 206K |
| 代理商： | LA3241 |
Usage Notes
No. 2564-6/15
LA3241
(1) Input pins 1 and 24 have internal resistors of 3.6 k
(typical) inserted.
50k
3.6k
C
ILA00607
24
1
When applying external voltages to input pins 1 and 24, insert
capacitors in the input. We recommend capacitances in the range
0.1 to 10 F. The DC voltage VIN DC when pins 1 or 24 is left
open will be 50 mV or lower.
(VIN DC = 20 mV typical)
See the VCC – VIN DC Characteristics for the supply voltage VCC
and VIN DC characteristics.
(2) Output waveform starting time
ILA00608
SW
200
3k
Cr
VCC
+
ILA00609
VCC on
ts
When the supply voltage VCC is applied, the amplifier outputs (pins 6 and 19) start up. The output waveform turn-on
time, ts, can be modified by adding the capacitor Cr to pin 12. The minimum value for Cr is 33 F. Values smaller
than this will aggravate the power-on impulse noise and degrade the ripple rejection ratio. At Cr = 100 F, ts will be
0.7 s, typical.
(3) Electronic switch control circuit
ILA00610
VCC
4
Amin
300
A
1k
1k
100
200
R1=R2
R2
3k
0.9V
R1
+
--
~
--
~
--
~
14
13
9
16
The control pin (pins 9 and 16) switching circuit has the
structure shown in the figure. The control circuit switching
level, VCONT, is given by the following formula.
VCONT = 1/2 × (VCC – 0.9) [V]
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA3242 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Preamplifier for Compact Cassette Recorder Recording-only Use |
| LA3245 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LA3246 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Stereo Preamplifier for Compact Double Cassette Playback-only Use |
| LA32B-G-4-PF | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA32B-G-PF | 制造商:LIGITEK 制造商全称:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
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