- Category:
- 技术管理
- Tags:
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[WORD]
- File Size:
- 1.82mb
- Update:
- 2011-06-04
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- Uploaded by:
- yangguo
Description: 设计要求 (1)输入信号为30mv峰峰值的正弦波,频率范围 20HZ~20KHZ,输入阻抗Ri ≥20KΩ,前级程控放大器增益通过单片机键盘输入控制,增益可预置为 10db,20db,30db,40db。 (2)后级功率放大器输出功率≥3W
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