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参数资料
| 型号： | LA4629 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 4.5 W, 2 CHANNEL, AUDIO AMPLIFIER, SFM12 |
| 封装： | SIP-12 |
| 文件页数： | 3/6页 |
| 文件大小： | 101K |
| 代理商： | LA4629 |
LA4629
No.6502-3/6
Block Diagram
ch1 input
amplifier
REF
amplifier
Output
amplifier
ch2 input
amplifier
Standby SW
Pop noise prevention block
Ripple filter
TSD protector
Output
amplifier
Rf1
RNf1
RNf2
Rf2
2
ch1
Output
POWER GND
ch2
Output
VCC
1
12
STBY
7
6
ch1
Input
PRE GND
ch2
Input
9
8
P.P
Filter
3
5
10
Pin Functions
1. Standby switch function (pin 6)
Applied standby
voltage Vx
2k
Ω
2k
Ω
STBY
Rx
+
6
The inflowing current at an
applied voltage of 1.5V, i.e.
the point when the amplifier
turns on, is approximately
750
μA
STBY pin applied voltage: 5V
To hold the pin 6 inflow current to about 750A insert a resistor (Rx) of 4.7k
Ω
STBY pin applied voltage: 12V
To hold the pin 6 inflow current to about 750A insert a resistor (Rx) of 14k
Ω (12kΩ).
STBY pin applied voltage: Other value (Vx)
To hold the pin 6 inflow current to about 750A insert a resistor (Rx) of (Vx - 1.5V)/750A.
If a microcontroller output signal is applied directly, insert a resistor in series and adjust the current to a level
optimal for the drive capability of the microcontroller.
2. Input pins (pins 9 and 10)
The input pin voltage is about 2VBE (1.4V).
The input pin impedance is about 30k
Ω.
Although the recommended value for the input capacitor is 0.22μF, the starting time can be modified by changing the
value of this capacitor. (The time from the point a voltage is applied to the standby pin to the point sound is emitted.)
Input capacitor
1.0
μF
2.2
μF
3.3
μF
4.7
μF
10
μF
Starting time (ts)
0.2s
0.3s
0.5s
0.65s
1.5s
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| LA4630N | 5 W, 3 CHANNEL, AUDIO AMPLIFIER, PSFM18 |
| LA4631 | 5 W, 2 CHANNEL, AUDIO AMPLIFIER, SFM13 |
| LA4631 | 5 W, 2 CHANNEL, AUDIO AMPLIFIER, SFM13 |
| LA4632 | 10 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM12 |
| LA4635A | 4.5 W, 2 CHANNEL, AUDIO AMPLIFIER, SFM12 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LA4630 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LA4630N | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:9V/12V 3-Dimension Power IC for Radio Cassette Recorders |
| LA4631 | 制造商:SANYO Semiconductor Co Ltd 功能描述:5W X 2Ch Af Power Amp Sanyo IC 13-Pin SIP-Hs |
| LA4631-E | 功能描述:音频放大器 2-CH POWER AMPLIFIER 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 |
| LA4631VC | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:For Home Audio Use 2-Channel SE AF Power Amplifier |
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