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【简答题】
在习题8.8图所示的锁相频率合成器中,已知f
L
=40MHz,f
s
=10MHz,要求输出频率的频率间隔为0.1MHz,输出频率f
o
=70~99.9MHz,求f
r
、m和n的值。
题目标签:
输出频率
频率合成器
合成器
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B.
负责将数字音频波形数据或MIDI消息合成为声音
C.
完成许多处理工作,如压缩和解压缩、改变采样频率、解释MIDI指令等
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A.
30—50
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30—60
C.
30—80
D.
30—90
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A.
1个
B.
2个
C.
3个
D.
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正确
B.
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相关题目:
【单选题】媒体播放软件播放MIDI音乐时,必须通过( )上的音乐合成器生成声音信号。
A.
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C.
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B.
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B.
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B.
page
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pleasure
B.
sports
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questions
B.
problems
C.
puzzles
D.
exams
查看完整题目与答案
【判断题】MIDI的音乐合成器含有波表、FM( )。
A.
正确
B.
错误
查看完整题目与答案
【单选题】音乐合成器是__________。
A.
完成各种信号的记录和播放任务
B.
负责将数字音频波形数据或MIDI消息合成为声音
C.
完成许多处理工作,如压缩和解压缩、改变采样频率、解释MIDI指令等
D.
将不同途径,如话筒或线路输入、CD输入的声音信号进行混合
查看完整题目与答案
【简答题】频率合成器框图如图P7.3所示,N=760~960,试求输出频率范围和频率间隔。
查看完整题目与答案
【单选题】MIDI 的音乐合成器有() 1 FM 2 波表 3 复音 4 音轨
A.
①
B.
①②
C.
①②③
D.
全部
查看完整题目与答案
【单选题】ZBA029变频器输出频率为()。
A.
5~50HZ
B.
10~50HZ
C.
20~50HZ
D.
30~50HZ
查看完整题目与答案
【单选题】VHF收发信机频率合成器失锁时,频率合成器中最大可能故障是()
A.
逻辑单元
B.
VCO放大器
C.
LPF
D.
鉴相器
查看完整题目与答案
【单选题】电潜泵变频器的输出频率范围是()HZ。
A.
30—50
B.
30—60
C.
30—80
D.
30—90
查看完整题目与答案
【单选题】R/SXU250A电台发射机频率合成器有()个压控振荡器。
A.
1个
B.
2个
C.
3个
D.
4个
查看完整题目与答案
【简答题】频率合成器的基本方法有()种。
查看完整题目与答案
【单选题】Computers have many uses today. Computers can solve difficult (56) and control complex machines. Many people use small computers (57) calculators to add, subtract, multiply, and divide (58) quickly. S...
A.
book
B.
page
C.
copy
D.
message
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【判断题】北斗接收机内部的频率合成器属于基带数字信号处理部分。()
A.
正确
B.
错误
查看完整题目与答案