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参数资料
| 型号： | LA4525 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| 封装： | DIP-8 |
| 文件页数： | 7/8页 |
| 文件大小： | 484K |
| 代理商： | LA4525 |
LA4525
No. 4022-7/8
2
-10
2
0
-2
-4
-6
-8
JK452519
23
5 7100
23
5 7 1k
23
5 7 10k
2 3
5 7100k
+
f Response
Frequency, f -- Hz
Frequenc
y
response
-
-dB
Co1
Co2
8
BTL
VCC = 6V
RL = 8
VO = 0dBm
Rg = 600
VG = 46dB/1kHz
C O
1,C
O
2
470
F
220
F
3
JK452520
0.01
23
5
7 0.1
23
5
7 1.0
2
0
600
0
1.2
500
1.0
400
0.8
300
0.6
200
0.4
100
0.2
ICC, Pd -- PO
Output power, PO -- W
Current
drain,
I
CC
-
-mA
Po
wer
dissipation,
Pd
-
W
I CC
Pd
BTL
Pd = VCC×ICCPO
VCC = 6V
Rg = 600
f = 1kHz
= 1000
F
Handling Instructions and Precautions
Internal Circuits
Figure 1. Input pins (6 and 7) and BTL input pin (5)
Figure 2. Output pins (1 and 3)
External Components
The starting time, ts, can be varied by changing the value of the input capacitor. A value of 2.2F is recommended. A
smaller value will result in a lower starting time, and a larger value, a higher starting time.
The output capacitor should have a value of 470F. A lower value will cause the low-frequency roll-off and low-power
characteristics to deteriorate.
A value of 470F is recommended for the power supply capacitor, although this can change according to the design
setup conditions.
In dual mode, BTL IN (the channel 2 negative feedback connection) should be left floating.
BTL mode
The output capacitors should have a value of 470F. If these are omitted, a ‘‘popping’’ noise occurs. Also, any output
offset will cause a current to flow which could damage the load under quiescent DC conditions.
The output capacitors can be replaced with a single 220F bipolar capacitor. A larger value can cause switching noise
when power is applied to the device.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LA4525-V-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 |
| LA4530M | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| LA4530S | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
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