Research THLin April2011cc.ee.ntu.edu.tw/~thlin/Research_THLin_2011Apr.pdf · Tsung-Hsien Lin 7 Bio-Medical Wireless Transceiver (3) • Phase-Switching-Based PSK TX • Breakthrough:

TsungTsung--HsienHsien LinLin

Research HighlightResearch Highlight

林宗賢

GIEE/NTUApril 2011


Research Theme•• Technology Innovator for IOT/M2M ApplicationsTechnology Innovator for IOT/M2M Applications

Sensors/Electrodes

DSP/Controller

ADC/DAC

AnalogCircuits

WirelessTransceiver

Bio‐Medical Applications– Sensor/elect. interface circuits (low‐noise low‐power)

– Sensors in CMOS ckt.

Communication Ckt.– Focus on low power, high energy efficiency

– Wireless for bio‐med. systems

Mixed‐Signal Ckt. Tech.– Delta‐sigma ADC– PLL, DLL, CDR, DCC– Digitally‐assisted analog design

2

TsungTsung--HsienHsien LinLin 3

Recent Research ProjectsRecent Research Projects11

長距離千億位元的乙太網路系統晶片設計子計畫四:應用於長距離一千億位元乙太網路之接收機解多工器與時脈資料回復電路

國科會100/5~103/7

22 以病人為中心的無線醫療環境-腦與心的對話子計畫七:應用於心腦對談之低功率無線生醫收發機國科會

100/5~103/7

33 Low‐power Circuit Techniques for Intelligent Sensor Nodes Intel‐NTU100/1~

44 毫米波互補金氧半導體百億位元無線傳收系統國科會99/11~100/7

55 前瞻生醫電子晶片開發與醫療系統整合分項一：低功率無線傳輸經濟部科專98/9~101/8

66 台大-聯發科合作研究計畫子計畫：VCO‐based Delta‐sigma Modulator Design聯發科95/7~起

77 心衰竭病患生醫檢測系統晶片及無線感測網路系統之設計及製作子計畫四 :生醫微感測器介面電路系統晶片之研究國科會

98/8~100/7

88 運用數位輔助智產元件之軟體無線收發機子計畫四:數位輔助、多規格連續時間型三角積分類比數位轉換器設計國科會

97/8~100/7

(Project 2, 5, 7: 跨領域生醫研究計畫)


BioBio--Medical Wireless TransceiverMedical Wireless Transceiver• Operate at low power• Aim for high energy efficiency• Support wide data rate range• Explore novel architectures


BioBio--Medical Wireless Transceiver (1)Medical Wireless Transceiver (1)

• Operate at the 400-MHz band• Uplink: FSK/PSK sensor data• Downlink: ASK command signal

Super-RegenerativeDemodulator

400MHz ASK RX

400MHz FSK/PSK TX

TX Data

LNA

Driver

SensorData

CommandSignal

Implant Device (IMD)

Body Air

Skin

ASK TX

External Device (EXD)

FSK/PSKModulator

Super-RegenerativeDemodulator

400MHz ASK RXLNA

Driver

400MHz VCO FSK/PSK RX

RX Data

• Application scenario: asymmetrical data communication


BioBio--Medical Wireless Transceiver (2)Medical Wireless Transceiver (2)• Wide-Band PLL-Based G/FSK TX• Breakthrough: solve problems in conventional PLL-based TXs⇒ enable higher data rate

• IEEE JSSC, 9/2009


BioBio--Medical Wireless Transceiver (3)Medical Wireless Transceiver (3)• Phase-Switching-Based PSK TX• Breakthrough: best energy efficiency for non-UWB TXs• IEEE T-MTT, 10/2009

0.01 0.1 1 10 100 10000.1

1

10

100

Narrow-bandModulation

Impulse-UWB

Chae, ISSCC08[2]

Monlar, CICC04[17]

Chee, VLSI06[14]

1pJ/bit10pJ/bit

Wong, ISSCC08[18]

Cook, ISSCC06[12]

Bohorquez, VLSI08[15]

Zarlink, ZL70081[13]

Panitantum, CICC08[17]

Matei, CICC08[4]

This work

10nJ/bit 1nJ/bit 100pJ/bit

Pow

er C

onsu

mpt

ion

(mW

)

Data rate (Mbps)


BioBio--Medical Wireless Transceiver (4)Medical Wireless Transceiver (4)• Super-Regenerative ASK RX with a ΔΣ Pulse-Width Digitizer• Breakthrough: achieve best demodulation accuracy• IEEE JSSC, 10/2010

[1] VLSI Sym’08; [2] ISSCC’06; [3] ISSCC’05

8


MixedMixed--Signal CircuitSignal Circuit• Delta-sigma modulator design

• Digitally-assisted compensation/calibration• Multi-mode operation• Quadrature modulator

• PLL• High-performance ΔΣ fractional-N PL• Calibration• Fast-locking

• Duty-cycle correction circuits• Clock and data recovery circuits


MixedMixed--Signal Circuit (1)Signal Circuit (1)• Quadrature Multi-band Delta-Sigma ADC with Mismatch Shaping• Breakthrough: propose a digital Mismatch Shaping circuit to

address I/Q mismatch issue; support tri-band applications• IEEE JSSC, 2011 (minor revision)

Pseudo-randomQuadrature Mismatch Shaping

QuadratureBandpass2nd CIFB

Loop FilterH(s)

_

IDWA

4YI,PQMS

YQ,PQMS

YI,IDWA

YQ,IDWA

ComplexDAC

VI (t)

VQ (t) _

FSCKQ

CKIDWACKPQMS

CKDAC

PQMSCLKCLK

I-1st OpAmpI-1st OpAmp

I-DAC & Digital Logic I-DAC & Digital Logic

Flash

Comparator

Flash

Comparator

Cross-Coupling RCCross-Coupling RC

Measurement BufferMeasurement Buffer

I-2nd OpAmpI-2nd OpAmp

Q-DAC & Digital Logic Q-DAC & Digital Logic

Q-1st OpAmpQ-1st OpAmp Q-2nd OpAmpQ-2nd OpAmp


MixedMixed--Signal Circuit (2)Signal Circuit (2)• Phase-Compensation Technique for Fast-Locking PLLs• Breakthrough: significantly reduces the locking time of a PLL• IEEE JSSC, 6/2010

This work

Bandwidth switching

Trigger signal

Conventional


MixedMixed--Signal Circuit (3)Signal Circuit (3)• Quantization-Noise Suppression Tech. for ΔΣ Fractional-N PLLs• Breakthrough: effectively suppresses the QN in a ΔΣ FNPLL• IEEE Symposium on VLSI Circuits, 6/2011 (accepted)

QNS enabled

w/o QNS

~30dB improvement


BioBio--Medical/Sensor Medical/Sensor -- IntroductionIntroduction• Sensors in CMOS• Sensor/electrode interface circuit• Low-noise low-power analog signal processing circuit


BioBio--Medical/Sensor Application (1)Medical/Sensor Application (1)• Bandgap-Free CMOS Temperature Sensor• Breakthrough: temperature sensor with best FoM ever reported• IEEE Symposium on VLSI Circuits, 6/2011 (accepted)

(*FOM = energy per conversion × resolution)

D[8:0]VPTAT

VDAC ControllerSAR−

+

RST CLKIB

AV

BiasGenerator

IB

IB

BGR free ADCPTAT voltage generator

ACRS DAC


BioBio--Medical/Sensor Application (2)Medical/Sensor Application (2)• DNA Detection SoC in CMOS Bio-MEMS platform• Collaborate with Prof. 呂學士, Prof. 林致廷, and CIC• Breakthrough: highly-integrated DNA detection chip in CMOS• IEEE Symposium on VLSI Circuits, 6/2011 (accepted)

Cantilever‐BeamDNA Sensor

Readout Interface

ProgramSRAM

R/TXPOR

MCUCORE

Cantilever‐BeamDNA Sensor

Readout Interface

ProgramSRAM

R/TXPOR

MCUCORE


BioBio--Medical/Sensor Application (3)Medical/Sensor Application (3)‧以病人為中心的無線醫療環境-腦與心的對話 (NSC project)

• Sensors/electrodes development

• High-performance EEG/ECK recording

• Information processing and extraction

• Efficient data communication

• Energy harvesting and power management

Body Info

DSP Hub

Bio Sensors ! "

!"

Body Info DSP

Sensor Node

Patient‐Centric Medical Sensor Network(Cloud @ Hospital)

Existed Wireless Std.(BT, Wifi, GSM, 3G)

SensorAnalog Frontend

DSPWireless Interface

!"

Bio‐Sensors

mini‐USB Interface

Intelligent Biomedical DSP

Wireless Interface

Research collaboration:Research collaboration:


Summary

17

•• Technology Innovator for IOT/M2M ApplicationsTechnology Innovator for IOT/M2M Applications

• Research focus:• Energy-efficient wireless communication• Mixed-signal circuit techniques• Bio-medical applications

• Seeking collaboration on bio-medical related research topics

Documents

Research THLin April2011cc.ee.ntu.edu.tw/~thlin/Research_THLin_2011Apr.pdf · Tsung-Hsien Lin 7 Bio-Medical Wireless Transceiver (3) • Phase-Switching-Based PSK TX • Breakthrough: