A Non-Uniform Sampling ADC Architecture with Embedded Alias-Free Asynchronous Filter

被引：0

作者：

Hand, Dylan ^{[1
]}

Chen, Mike Shuo-Wei ^{[1
]}

机构：

[1] Univ So Calif, Dept Elect Engn Electrophys, Viterbi Sch Engn, Los Angeles, CA 90089 USA

来源：

2012 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) | 2012年

关键词：

Non-uniform sampling; analog to digital converter; quantization noise; asynchronous filter; CONTINUOUS-TIME;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This work proposes a non-uniform sampling analog-to-digital converter (ADC) architecture that embeds an alias-free filter in the asynchronous digital domain to relax the requirements of the analog anti-aliasing filter, improve the overall signal dynamic range, and interface directly with synchronous digital circuitry. Both event-driven voltage and time quantizers are used in the conversion process. Furthermore, an analytical model for estimating their quantization noise power is derived, which matches the numerical simulation with less than 4% deviation within the region of interest. A signal to noise ratio (SNR) improvement of 27dB over conventional, uniformly sampled Nyquist ADCs is obtained given the same 10-bit quantizer.

引用

页码：3707 / 3712

页数：6

共 14 条

[1] The path to the software-defined radio receiver [J].

Abidi, Asad A. .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 2007, 42 (05) :954-966

[2]

Aeschlimann F, 2004, INT SYMP ASYNCHRON C, P198

[3]

Alan R. W. S., 1999, DISCRETE TIME SIGNAL

[4] New class of asynchronous A/D converters based on time quantization [J].

Allier, E ;

Sicard, G ;

Fesquet, L ;

Renaudin, M .

NINTH INTERNATIONAL SYMPOSIUM ON ASYNCHRONOUS CIRCUITS AND SYSTEMS, PROCEEDINGS, 2003, :196-205

[5] Quantization theory - A deterministic approach [J].

Bellan, D ;

Brandolini, A ;

Gandelli, A .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1999, 48 (01) :18-25

[6] SPECTRA OF QUANTIZED SIGNALS [J].

BENNETT, WR .

BELL SYSTEM TECHNICAL JOURNAL, 1948, 27 (03) :446-472

[7]

BILINSKIS I, 2007, DIGITAL ALIAS FREE S

[8] The software radio concept [J].

Buracchini, E .

IEEE COMMUNICATIONS MAGAZINE, 2000, 38 (09) :138-143

[9] MODEL FOR THE POWER SPECTRAL DENSITY OF QUANTIZATION NOISE [J].

CLAASEN, TACM ;

JONGEPIER, A .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1981, 29 (04) :914-917

[10] Wide-Range Time-to-Digital Converter With 1-ps Single-Shot Precision [J].

Keranen, Pekka ;

Maatta, Kari ;

Kostamovaara, Juha .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2011, 60 (09) :3162-3172

← 1 2 →