[1]Li Haoliang,LI Changqing,Deng Jicai,et al.A novel design of high-precision on-chip matching resistor circuit[J].Journal of Zhengzhou University (Engineering Science),2008,29(03):27-30.[doi:10.3969/j.issn.1671-6833.2008.03.007]
Copy
Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
29卷
Number of periods:
2008年03期
Page number:
27-30
Column:
Public date:
1900-01-01
- Title:
-
A novel design of high-precision on-chip matching resistor circuit
- Author(s):
-
Li Haoliang; LI Changqing; Deng Jicai; etc
-
-
- Keywords:
-
- CLC:
-
-
- DOI:
-
10.3969/j.issn.1671-6833.2008.03.007
- Abstract:
-
Using digital terminal control technology, based on the principle of negative feedback dynamic adjustment and adjustable polysilicon resistance strip, a novel high-precision on-chip matching resistor circuit that meets the requirements of high-speed serial interface USB2.0 protocol is designed.Using TSMC’s CMOS 0.25μm mixed-signal model and simulated with spectre simulator in the Cadence software environment, the results show that under the action of 500 MbPs high-speed clock signal, the designed matching resistance value is [44.3 Ω. In the range of 45.6 Ω], the maximum settling time is 6μs, the average error is ±1.45%, the average variation range of the designed resistor is 45×(1±1.45%)Ω, and the maximum error range is 1.56%, which meets and exceeds the high-speed serial interface protocol requirements of 45× (1±10%)Ω.