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A CMOS Analog Baseband for a 5GHzWLAN Direct- Conversion Receiver
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lee, Mi-Young Lee, Young-Hun |
| Copyright Year | 2014 |
| Abstract | This paper describes a CMOS analog baseband circuits for direct- conversion receiver of5GHz IEEE 802.11a. The analog baseband consists of I/Q signal paths which have channel selection filter, programmable gain amplifier (PGA). An active-RC channel selection filter for WLAN is described whose cut-off frequency is tunable from 6MHz to 20MHz. For high linearity, the PGA is constructed with op-amp and resistor based inverting amplifiers. For minimum power consumption, the op-amps employ the current re-using feedforward frequency compensation. The input third-order intercept point (iIP3) is 20dBV at the highest gain mode. Implemented in a 0.18 m CMOS technology, the gain of the programmable gain amplifier (PGA) can be controlled from 2.5dB to 52.5dB with 0.5dB step. |
| Starting Page | 5 |
| Ending Page | 9 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.14257/astl.2014.51.02 |
| Alternate Webpage(s) | http://onlinepresent.org/proceedings/vol51_2014/2.pdf |
| Alternate Webpage(s) | https://doi.org/10.14257/astl.2014.51.02 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
