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Type: Posts; User: alex_fd

1. ## Thread: when calculating the SNR of adc，should the bandwidth of noise be 1/2fsample？

by alex_fd
Replies
2
Views
192

### Closed: when calculating the SNR of adc，should the bandwidth of noise be 1/2fsample？

when calculating the SNR of adc，if i want to calculate all the noise，should the bandwidth of noise be 1/2fsample？in the book，its said that the quantization noise of adc is distributed in the range...
2. ## Thread: How to decide the specification of in-band phase noise of a bluetooth PLL

by alex_fd
Replies
0
Views
332

### Closed: How to decide the specification of in-band phase noise of a bluetooth PLL

how to decide the specs of in-band phase noise of a bluetooth pll? I think the outband phase noise of a pll ,for example ,phase nosie@1MHz or @2MHz,are decided by the adjacent channel...
3. ## Thread: Is it right to understand the Zopt（optimized noise impedance）of ind degenarated lna

by alex_fd
Replies
3
Views
841

### Closed: Re: Is it right to understand the Zopt（optimized noise impedance）of ind degenarated l

thanks a lot ,Sir.

I got some equations of Zopt from the paper

147693

The value of real part of the Zopt is the first equation. A and B1 are demenstrated by the last 2 equations. Cgs is the...
4. ## Thread: Is it right to understand the Zopt（optimized noise impedance）of ind degenarated lna

by alex_fd
Replies
3
Views
841

### Closed: Is it right to understand the Zopt（optimized noise impedance）of ind degenarated lna

Is it right to understand the Zopt（optimized noise impedance）of ind degenarated lna

Today i took part in an interview.The interviewer asked me to saysomething about lna.At first,I wrote the power...
5. ## Thread: How much salary can a rf/analog ic design engineer get in usa and europe?

by alex_fd
Replies
0
Views
1,534

### Closed: How much salary can a rf/analog ic design engineer get in usa and europe

hello,How much salary can a rf/analog ic design engineer get in usa and europe?
the expeirience:The enginner has a MA and 8 years working experience: 5 years experience in mixed signal module...
6. ## Thread: anyone who could tell me the procedure of design a inductive source degenerated LNA?

by alex_fd
Replies
2
Views
706

### Closed: Re: anyone who could tell me the procedure of design a inductive source degenerated L

:) thank you for the suggestion.I will read books more.
7. ## Thread: anyone who could tell me the procedure of design a inductive source degenerated LNA?

by alex_fd
Replies
2
Views
706

### Closed: anyone who could tell me the procedure of design a inductive source degenerated LNA?

hello.Is there anyone who could tell me the procedure of design a inductive source degenerated LNA at 2.4GHz?
I am designing a source degenerated LNA. And I used a cascode NMOS .And some collegue...
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