Loading...
Please wait, while we are loading the content...
70 dB Dynamic Range CMOS Wideband Digital Variable Gain Amplifier for AGC in DVB-T/H Receivers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Chua-Chin Huang, Chi-Chun Lee, Ching-Li Lin, Li-Ping Tseng, Yih-Long |
| Copyright Year | 2008 |
| Abstract | This paper presents a novel variable gain amplifier (VGA) design which is applied in the automatic gain control loop of digital video broadcasting (DVB) receivers designed for standards DVB-T/H. The VGA is composed of three cascaded tunable gain stages to provide a 70 dB dynamic range with 2 dB gain steps. Each gain stage is based on a digital variable gain amplifier (DVGA) which is composed of a plurality of gain blocks (GBs) and a fully differential degeneration amplifier (FDDA). The GBs of the DVGA are digitally controlled current mirrors. A common-mode feedback circuitry is used to stabilize the FDDA by providing a stable common-mode voltage. Physical measurements on silicon show that the gain error is merely 0.55 dB given a 70 dB tuning range. |
| Starting Page | 367 |
| Ending Page | 379 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00034-008-9028-9 |
| Volume Number | 27 |
| Alternate Webpage(s) | http://vlsi.ee.nsysu.edu.tw/papers/Journal/J_069.pdf |
| Alternate Webpage(s) | http://vlsi.ee.nsysu.edu.tw/html/papers/Journal/J_069.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
