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參數(shù)資料
| 型號： | LA4627 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 音頻放大器 |
| 英文描述： | Two-Channel Audio Frequency Power Amplifier |
| 中文描述： | 雙通道音頻功率放大器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 64K |
| 代理商： | LA4627 |
LA4627
No.6501-3/6
Block Diagram
Pin Functions
1. Standby switch function (pin 1)
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 6 and 7)
The input pin voltage is about 2VBE (1.4 V).
The input pin impedance is about 30 k
.
Although the recommended value for the input capacitor is 0.22
μ
F, 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
Starting time (ts)
1.0
μ
F
0.2 s
2.2
μ
F
0.3 s
3.3
μ
F
0.5 s
4.7
μ
F
0.65 s
10
μ
F
1.5 s
ILA00058
2 k
2
Rx
STBY
+
1
STBY pin applied voltage: 5 V
To hold the pin 1 inflow current to about 750
μ
A insert a resistor (Rx) of 4.7 k
STBY pin applied voltage: 12 V
To hold the pin 1 inflow current to about 750
μ
A insert a resistor (Rx) of 14 k
(12 k
).
STBY pin applied voltage: Other value (Vx)
To hold the pin 1 inflow current to about 750
μ
A insert a resistor (Rx) of (Vx - 1.5 V)/750
μ
A.
Applied standby
voltage Vx
The inflowing current at an
applied voltage of 1.5 V, i.e.
the point when the amplifier
turns on, is approximately
750
μ
A.
ILA00059
ch1
Input
ch2
Input
PRE GND
ch1
Output
ch2
Output
POWER GND
STBY
P.P
Filter
VCC
12
7
1
4
6
9
8
11
Fin
2
ch2 input
amplifier
Standby SW
TSD protector
Pop noise prevention block
Ripple filter
ch1 input
amplifier
Output
amplifier
Output
amplifier
REF
amplifier
RNf1
Rf1
Rf2
RNf2
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| LA4628 | Two-Channel 20 W BTL Audio Power Amplifier |
| LA4629 | Two-Channel Audio Frequency Power Amplifier |
| LA4630N | 9V/12V 3-Dimension Power IC for Radio Cassette Recorders |
| LA4635 | 2-Channel BTL AF Power Amplifier |
| LA4635B | 2-Channel BTL AF Power Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA4627-E | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LA4627HK-E | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LA4627N | 制造商:Panasonic Industrial Company 功能描述:IC 制造商:SANYO Semiconductor Co Ltd 功能描述:2Ch Audio Freq Pwer Amp Sanyo IC 12-Pin DIP-F |
| LA4627N-E | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LA4628 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Two-Channel 20 W BTL Audio Power Amplifier |
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