A compact and power efficient local oscillator generation and distribution system for complex multi radio systems

A 65 nm, 0.53 mm^2, CMOS multi-radio-frequency local oscillator (LO) generation and distribution system utilizes single phase routings, a single VCO, and smaller Q inductors (compensated by a negative R stage) to reduce area, quadrature coupling, and power consumption. The LO amplitude, IQ imbalance...

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Bibliographic Details
Main Authors: Roufoogaran, R., Li, T., Ojo, A., Cheng, S., Lee, C.P., Mahadeva, S., Shetter, P., Behzad, A.
Format: Conference Proceeding
Language:English
Subjects:
Amplitude Control Loop (ACL)
Circuits
Clock tree distribution
Current control
divider
Energy consumption
Frequency conversion
I and Q signals
Inductor
Inductors
Local oscillators
LOGEN
Negative R
PLL
Power generation
Routing
RX system
Signal generators
TX system
VCO
Voltage-controlled oscillators
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Description
Summary:A 65 nm, 0.53 mm^2, CMOS multi-radio-frequency local oscillator (LO) generation and distribution system utilizes single phase routings, a single VCO, and smaller Q inductors (compensated by a negative R stage) to reduce area, quadrature coupling, and power consumption. The LO amplitude, IQ imbalances and current consumption are adjusted dynamically by an automatic control loop (ACL) in order to maintain optimum performance. This work results in 60% area and 50% power savings relative to prior implementation while maintaining the optimized performances [4].
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2008.4561435