A compact 21 GHz inductorless differential quadrature ring oscillator implemented in SiGe HBT technology
Resource
Materials Science in Semiconductor Processing 8, 445-449
Journal
Materials Science in Semiconductor Processing 8
Pages
445-449
Date Issued
2005
Date
2005
Author(s)
DOI
246246/2006111501264967
Abstract
A 21 GHzinductorless differential quadrature ring oscillator suitable for use in clock & data recovery circuits in optical network receivers is presented. Implemented using a commercially available 0.18 mm 120GHzSiGe HBT technology, the circuit consists of only 22 SiGe HBTs & 4 resistors, & occupies an active area of less than 120150 mm2. The circuit operates on a 3.0V power supply & dissipates at most 152mW of power. The oscillation frequency is tunable from 18.33 to 21.19 GHzwhile the output power varies from 13.5 to 9.0 dBm. A phase noise of 83.33 dBc/Hzat 1 MHzoffset from the carrier frequency of 21.19 GHzis achieved. This results in an oscillator figureof- merit of 148.03, which is comparable to other ring oscillators published in literature operating in similar frequency range.
Subjects
Silicon-germanium
Heterojunction bipolar transistor
SiGe HBT
Ring oscillator
Quadrature
Differential
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
3855.pdf
Size
22.97 KB
Format
Adobe PDF
Checksum
(MD5):d394f56d25c0d42792dcb5def18ed1b0