1. CSE598A Analog Mixed Signal CMOS Chip Design
FM Mixer CMOS Realization
(Progress Presentation)
Zhang Yi

2. CSE598A Analog Mixed Signal CMOS Chip Design
Outline:
Summary of Mixer Design
Progress in Project
Expectation

3. Mixer ‘s Function in RF system
CSE598A Analog Mixed Signal CMOS Chip Design
Mixer ‘s Function in RF system
Down conversion in receiver
Realize Gilbert Mixer by CMOS Technologies

4. Mixer ‘s Function in RF system
CSE598A Analog Mixed Signal CMOS Chip Design
Mixer ‘s Function in RF system
Critical points of Mixer:
Image Frequency
Conversion Loss
Noise Figure
Intermodulation Distortion
Port-to-Port Isolation

5. Realize Gilbert Mixer by CMOS Technologies
CSE598A Analog Mixed Signal CMOS Chip Design
Realize Gilbert Mixer by CMOS Technologies
Intermodulation Distortion
1dB Compression point
Critical points of Mixer:
Image Frequency
Conversion Loss
Noise Figure
Intermodulation Distortion
Port-to-Port Isolation

6. Progress in Project

7. Progress in Project Schematic determined from calculation:
Transistor size
Rs and Rload
RF and LO source

8. Progress in Project
Simulation results:

9. Challenges Width Vs conversion gain
IM3 point -overdrive voltage Vs power consumption
Rs Vs linearity

10. Expectation Design criteria for the mixer Parameter Specification
CSE598A Analog Mixed Signal CMOS Chip Design
Expectation
Design criteria for the mixer
Parameter
Specification
Units
Frequency
100
MHz
Noise Figure (DSB)
<10 dB
IM3 Intercept Point (Input)
>20
dBm
Voltage Gain
>8
Power consumption
<100
ohms
Source impedance 50
Load impedance
500
Voltage Supply
3.0 V
Further modify the circuit to reach all design criteria