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| 型号： | SA575DTBR2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC COMPANDOR 2CHAN GAIN 20-TSSOP |
| 标准包装： | 2,500 |
| 类型： | 压缩扩展器 |
| 应用： | 蜂窝式无线电，混频器 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
SA575
http://onsemi.com
7
Automatic Level Control
The
typical
Automatic
Level
Control
circuit
configuration is shown in Figure 4. It can be seen that it is
quite similar to the compressor schematic except that the
input to the rectifier cell is from the input path and not from
the feedback path. The input is AC coupled through C12
and C13 and the output is AC coupled through C8. Once
again, as in the previous cases, if the system input and
output signals are already AC coupled, then C12, C13 and
C8 could be eliminated. Concerning the compressor,
removing R6, R7 and C7 will cause motor-boating in
absence of signals. CCOMP is necessary to stabilize the
summing amplifier at higher input levels. This circuit
provides an input dynamic range greater than 60 dB with
the output within
"0.5 dB typical. The necessary design
respectively.
(eq. 5)
4VIN(avg)
3.8 k
W x 100 mA
ALC gain =
(eq. 6)
tR = tA = 10 kW x CRECT = 10 kW x C9
2.2
mF
10
mF
10
mF
VREF
S
DG
1
mF
4.7
mF
ALC IN
ALC OUT
8
12
13
16
15
11
14
C COMP
22pF
C7
Figure 4. Typical ALC Configuration
10k
W
3.8k
W
10k
W
30k
W
30k
W
C12
C13
R6
R7
C8
C9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SA575DTBR2G | 功能描述:音频放大器 ANA COMPANDOR 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 |
| SA575N | 功能描述:音频放大器 3-7V Precision Dual 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 |
| SA575NG | 功能描述:音频放大器 3-7V Precision Dual Gain Compandor 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 |
| SA576 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low power compandor |
| SA57608 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:One-cell Lithium-ion battery protection with over/undercharge and overcurrent protection |
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