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参数资料
| 型号： | LA4510 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.24 W, 1 CHANNEL, AUDIO AMPLIFIER, PSIP9 |
| 封装： | SIP-9 |
| 文件页数： | 4/9页 |
| 文件大小： | 192K |
| 代理商： | LA4510 |
LA4510
No.1161-4/9
Setting of Starting Time
The LA4510 contains a muting circuit to be operated at the time of power switch ON/OFF. Thus, pop noise coming
from power amplifier and preamplifier is rejected. The starting time depends on the capacitance value of feedback
capacitor C2 as well as muting capacitor (C3).
33μF
22μF
10μ
F
ts -- C3
5
100
2
3
5
7
1000
2
3
5
2
3
5
7
72
3
5
7
1.0
10
23
5
7 100
Muting Capacitor Value, C3 --
μF
Starting
T
ime,
t s
-
-msec
C2 = 47
μF
VG = 45dB
VCC = 3V
RL = 4Ω
Rg = 0
Voltage Gain
Voltage gain depends on the ratio of internal resistance
value (20k
Ω) to external resistance value (R1). However,
since setting of open loop voltage gain is a little on the low
side (62dB) due to soft clipping, it is not recommendable
to use the IC at a voltage gain greater than recommended.
If the IC is used at a voltage gain less than recommended,
take care not to cause oscillation to occur.
Action to Prevent Oscillation
If oscillation occurs, check C5. The larger the capacitance
value is or the smaller the value of tan
δ is if the
capacitance value is the same, C5 acts more effectively
against oscillation. Using an electrolytic capacitor as C5
may cause oscillation to occur at a low temperature.
It is recommendable to use a tantalum or alsicon
electrolytic capacitor that is good in temperature
characteristic. For oscillation that occurs at a decreased
voltage gain, increase the capacitance value of C4. If it is
impossible for C4, C5 to act effectively against
oscillation, add a ceramic capacitor of 470 to 1000pF
across pin (4) and GND. In this case, distortion factor at
high frequencies worsens to some extent.
added
LA4510
C6
C5
C4
470 to 1000pF
RL
4
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LA451-2-WH | 制造商:Carling Technologies 功能描述:L SLIDE SWITCH - Bulk |
| LA4520 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA4525 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Dual AF Power Amplifier for Radio Cassette Recorders |
| LA4525_08 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:For Radio Cassette Recorders Dual AF Power Amplifier |
| LA4525-E | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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