Zobrazeno 1 - 10
of 93
pro vyhledávání: '"Jae-Whui Kim"'
Autor:
Jun-Hyun Bae, Yong-Sang You, Jae-Yoon Sim, Hong-June Park, Young-Chan Jang, Ho-Young Lee, Jae-Whui Kim
Publikováno v:
JSTS:Journal of Semiconductor Technology and Science. 8:318-325
A 1.2 V 7-bit 1 GS/s CMOS flash ADC with an interpolation factor of 4 is implemented by using a 0.13 ㎛ CMOS process. A digital calibration of DC reference voltage is proposed for the 1 st preamp array to compensate for the input offset voltage of d
Autor:
Un-Ku Moon, Min Gyu Kim, Seung-Bin You, Gabor C. Temes, Pavan Kumar Hanumolu, Sang-Ho Kim, Sang-Hyeon Lee, Gil-Cho Ahn, Jae-Whui Kim
Publikováno v:
IEEE Journal of Solid-State Circuits. 43:1195-1206
A 0.9 V third-order double-sampled delta-sigma audio ADC is presented. A new method using a combination of a switched-RC technique and a floating switched-capacitor double-sampling configuration enabled low-voltage operation without clock boosting or
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 54:601-605
A slew-rate-controlled output driver having a constant transition time irrespective of environmental variations is described in this brief. The proposed output driver employs a capacitive feedback between the output and input of the driver to allow i
Autor:
Jae-Whui Kim, Sang-Ho Kim, Gabor C. Temes, Un-Ku Moon, Seung-Bin You, Ruopeng Wang, Sang-Hyeon Lee
Publikováno v:
Analog Integrated Circuits and Signal Processing. 51:27-31
An oversampled digital-to-analog converter (DAC) with a 100-dB A-weighted dynamic range is presented. It uses a switched-capacitor (SC) array to transfer the sampled charges directly into the headphone driver. The overall DAC gain is precisely contro
Publikováno v:
IEEE Journal of Solid-State Circuits. 38:1227-1233
A slew-rate controlled output driver adopting the delay compensation method has been implemented using 0.18-/spl mu/m CMOS process for storage device interface. A phase-locked loop (PLL) is used to generate compensation current and constant delay tim
Publikováno v:
IEEE Transactions on Consumer Electronics. 43:863-867
In a front-end receiver of DBS (direct broadcasting for satellite), the A/D converter, which converts I/Q signals of the QPSK demodulator into the digital domain, has an important role in determining the system performance. A 3 V dual A/D converter w
Autor:
Sung-No Lee, Jae-Whui Kim, Ho-Jin Park, Un-Ku Moon, Sang-Ho Kim, Seung-Bin You, Pavan Kumar Hanumolu, Sunwoo Kwon
Publikováno v:
CICC
A multi-bit third-order hybrid ΔΣ ADC is presented. The ADC obviates the need for dynamic element matching (DEM) in the critical feedback path, eliminating the systematic boundary of high clock frequency. This implementation incorporates continuous
Autor:
Hae-Seung Lee, Sung-No Lee, Jae-Whui Kim, Wang-Seup Yeum, Ho-Jin Park, Moo-Yeol Choi, Seung-Bin You
Publikováno v:
CICC
A 3rd-order hybrid (continuous-time and discrete-time) delta-sigma audio ADC, implemented in 65 nm CMOS process, dissipates 15 mW and occupies an active die area of 0.28 mm2. A post integration time control (PITC) technique is proposed for calibratio
Autor:
Kyoung-Ho Moon, Hae-Seung Lee, Taehwan Oh, Ho-Young Lee, Jae-Whui Kim, Ju-Hwa Kim, Ho-Jin Park
Publikováno v:
CICC
Time constant control (TCC) incorporating on-chip digital self-calibration technique performs two-step calibration of pipeline ADC stage errors and reduces power consumption at the same time. Using the proposed technique, the current of the amplifier
Autor:
Seung-Hee Yang, Jae-Whui Kim, Hyun-goo Kim, Jongshin Shin, Jiyoung Kim, Jongjae Ryu, Bongjin Kim, Chi-Won Kim, Jae-Hyun Park
Publikováno v:
CICC
A 65 nm HDMI TX PHY was designed with supply-regulated dual-tuning PLL and blending multiplexer. The proposed PLL uses a new dual-tuning scheme for small capacitor and low-jitter while keeping the supply regulation capability. A fractional-N operatio