Analysis and Design of CMOS Received Signal Strength Indicator

Liu²,

AEU - International Journal of Electronics and Communications

et al. 2018

This study presents a monolithic received signal strength indicator (RSSI) and an ultra-low power SAR ADC for 5.8GHz DSRC transceiver in China electronic toll collection systems. In order to meet the stringent requirement of wide input range for the transceiver, two RSSIs collaborate with auxiliary ADC circuits to provide the digitalized received signal strength to the digital baseband of a transceiver. The RSSI design achieves fast transient response, low power consumption, and a small die area with internal active low-pass filters instead of external passive ones. The proposed design has been fabricated using a 0.13µm 2P6M CMOS technology. Measurement results show that the overall input dynamic range is 86dB with an accuracy of ±1.72dB and a transient response of less than 2µs. Compared with the state-of-the-art designs in the literature, the overall input range and transient settling time are improved by at least 14.6%, and 300%, respectively.

Section: Chip Measurement Results and Discussionmentioning

confidence: 99%

“…In [12], a limiting amplifier is a differential one with a gain of 10dB and 250µA at a 1.8 V supply. Yet, this design is not efficient because of a complex circuit structure.…”

Section: A Limiting Amplifier and Rectifiermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A fully integrated RSSI and an ultra-low power SAR ADC for 5.8 GHz DSRC ETC transceiver

Liu²,

AEU - International Journal of Electronics and Communications

et al. 2018

IEICE Electron. Express

“…( 4) and Eq. (9) show that the gain of the VGA and the 𝑉 𝑇 𝐻, 𝑃𝐷 of the peak detector are independent of the supply voltage. The temperature coefficient of the threshold voltage of the peak detector can be expressed as…”

Section: Peak Detector Design and Temperature Compensationmentioning

confidence: 95%

“…A LOS detector using signal strength indication (SSI) as a peak detector is proposed in in literature [8]. However, the SSI has a very wide dynamic range, but requires an LA with high gain (e.g., 80dB) [9,10]. Therefore, the LA bandwidth is limited.…”

Section: Introductionmentioning

confidence: 99%

Threshold-programmable loss-of-signal detection circuit with temperature compensation

Chen

Sun

et al. 2023

It is a challenge to implement a loss-of-signal (LOS) circuit with a wide threshold voltage range that is insensitive to temperature. This paper presents a new wide-range threshold-programmable LOS detector with full temperature compensation for application in 25Gb/s high-speed optical communication receivers. The wide-range programmable threshold voltage of the LOS detector is achieved by adjusting the threshold voltage of the peak detector and the gain of the variable gain amplifier (VGA). The detection accuracy is obviously improved by using offset self-cancellation technology for the comparator (COMP) and temperature compensation technology for the VGA and the peak detector. The LOS detector has been fabricated in 0.18 um BICMOS process and occupies 0.03 𝑚𝑚 2 . The programmable threshold voltage range is 11∼130 mV for the 25Gb/s nonreturn-to-zero code, the hysteresis is 2 dB, and the max detection error is 4 mV. The LOS detector consumes 2.18 mW from 1.8 V supply voltage.

A CMOS high resolution, process/temperature variation tolerant RSSI for WIA-PA transceiver

Yang

Jiang

et al. 2015

J. Semicond.

This paper presents a high resolution, process/temperature variation tolerant received signal strength indicator (RSSI) for wireless networks for industrial automation process automation (WIA-PA) transceiver fabricated in 0.18 μm CMOS technology. The active area of the RSSI is 0.24 mm2. Measurement results show that the proposed RSSI has a dynamic range more than 70 dB and the linearity error is within ±0.5 dB for an input power from −70 to 0 dBm (dBm to 50 Ω), the corresponding output voltage is from 0.81 to 1.657 V and the RSSI slope is 12.1 mV/dB while consuming all of 2 mA from a 1.8 V power supply. Furthermore, by the help of the integrated compensation circuit, the proposed RSSI shows the temperature error within ±1.5 dB from −40 to 85 °C, and process variation error within ±0.25 dB, which exhibits good temperature-independence and excellent robustness against process variation characteristics.