lecture 20: mixer circuitsbwrcs.eecs.berkeley.edu/classes/icdesign/ee142_f10/... · ee142 lecture20...
TRANSCRIPT
EE142 Lecture20
1
Amin ArbabianJan M. Rabaey
Lecture 20: Mixer Circuits
EE142 – Fall 2010
Nov. 4th, 2010
University of California, Berkeley
2EE142-Fall 2010
Announcements/ Review
Make sure to attend Monday’s Discussion, Siva will cover PSS/HB for harmonic simulations (Mixer and Oscillators)
Questions about the Ugrad projects
Transceiver architectures– Will go over again on Wednesday’s Review OH
– Covered in Razavi Ch3 and Ch5
Image problem
Direct conversion– 2nd order nonlinearities (IM2,…)
– Flicker noise
– DC offset
– LO self-mixing
EE142 Lecture20
2
3EE142-Fall 2010
Hartley Mixer
4EE142-Fall 2010
Delay Operation
EE142 Lecture20
3
5EE142-Fall 2010
Multiplying by a Complex Signal
6EE142-Fall 2010
Multiplying by a Real Signal
EE142 Lecture20
4
7EE142-Fall 2010
Image Problem (Different View)
8EE142-Fall 2010
Sine / Cosine Mixing
EE142 Lecture20
5
9EE142-Fall 2010
Image Rejection
10EE142-Fall 2010
+/- 45 Degree Circuits
EE142 Lecture20
6
11EE142-Fall 2010
Other Issues
12EE142-Fall 2010
BJT with Large Sinusoidal Drive
EE142 Lecture20
7
13EE142-Fall 2010
BJT Collector Current
14EE142-Fall 2010
BJT Current
EE142 Lecture20
8
15EE142-Fall 2010
Collector Current Waveform
16EE142-Fall 2010
Harmonics in the Current
EE142 Lecture20
9
17EE142-Fall 2010
Small-Signal Regime
18EE142-Fall 2010
BJT with Stable Bias
EE142 Lecture20
10
19EE142-Fall 2010
Differential Pair with Sine Drive
20EE142-Fall 2010
Differential Pair Waveforms
EE142 Lecture20
11
21EE142-Fall 2010
Differential Pair Harmonic Currents
22EE142-Fall 2010
Mixer Analysis
EE142 Lecture20
12
23EE142-Fall 2010
Mixer Assumptions
24EE142-Fall 2010
Mixer Output Signal
EE142 Lecture20
13
25EE142-Fall 2010
BJT Mixer
26EE142-Fall 2010
AC Equivalent Circuit
EE142 Lecture20
14
27EE142-Fall 2010
BJT Mixer Analysis (Time-Varying gm(t))
28EE142-Fall 2010
BJT Mixer Analysis
EE142 Lecture20
15
29EE142-Fall 2010
LO Drive
30EE142-Fall 2010
RF Drive
EE142 Lecture20
16
31EE142-Fall 2010
Mixer Analysis (General Approach)
32EE142-Fall 2010
General Approach