Package Aware <i>LC</i>-VCO With Self-Biased Switched Capacitor Structure for Better Supply Noise Rejection

Chary, Purushothama; Peerla, Rizwan Shaik; Pula, Bhanu Teja; Dutta, Ashudeb; Sahoo, Bibhu Datta

doi:10.1109/tcpmt.2022.3210781

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Overview Of Irnss Pll1

Vco and CML Divider1

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2024

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Cited by 2 publications

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“…The L5 and S frequency bands are where the IRNSS receiver typically operates. There are single voltage-controlled oscillator (VCO) [15], multiple VCO PLLs' [16], and rotatory traveling wave oscillator [17] architectures described in the literature. The most recent research covers both bands with a single broadband voltage-controlled oscillator (VCO) [18].…”

Section: Overview Of Irnss Pllmentioning

confidence: 99%

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A Simplified Gm − C Filter Technique for Reference Spur Reduction in Phase-Locked Loop

Chary,

Shaik Peerla,

Dutta

2024

JLPEA

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This paper presents a wideband approach for L5 and S-band integer-N phase-locked loop (PLL) targeting Indian Regional Navigation Satellite System (IRNSS) applications. A reference spur reduction technique using a Gm−C filter is proposed. The reference spur is improved by 7 dB when compared with one without any Gm−C filter. The wideband integer-N PLL is designed and fabricated in UMC 65-nm CMOS process. The Gm−C filter block consumes 200 μA current. The wideband voltage-controlled oscillator (VCO) oscillates from 1.6 GHz to 3.2 GHz having a tuning range (TR) of 40%, achieving a best and worst phase noise of ≈−122 dBc/Hz and ≈−116 dBc/Hz at a 1 MHz offset, respectively.

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Section: Overview Of Irnss Pllmentioning

confidence: 99%

“…A dual-bias varactor shown in Figure 11b is used for fine tuning. The switched-capacitor array (SCA) structure implemented in [15] is used for discrete tuning as shown in Figure 11c.…”

Section: Vco and CML Dividermentioning

confidence: 99%