Wide-ratio broadband SiGe HBT regenerative frequency divider enhanced by differential TIA load

Wei, Hung-Ju; Meng, Chinchun; Chang, Y. W.

doi:10.1049/el:20071384

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…A flip‐flop configured as a static divided‐by‐two is limited in range by the propagation delay time of the master and slave stages, which are wideband circuits capable of operating from DC to the maximum toggle frequency, f max‐toggle . The toggle rate for static dividers may be increased through the application of inductive peaking, active loads [2] and layout optimisation [3]. Frequencies beyond f max‐toggle are reached by employing regenerative division with a dynamic circuit.…”

Section: Introductionmentioning

confidence: 99%

Dynastat frequency divider with DC‐153 GHz range

Vera

Long

2015

Electron. lett.

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A dual-mode dynamic/static (dynastat) divided-by-two combines the range of a static frequency divider (DC-117 GHz from simulation) and the higher toggle frequency of a dynamic divider (85-153 GHz, simulated) at a low input sensitivity of 0.2 V pk differential (<−3 dBm into 50 Ω). The measured self-oscillation frequencies of the prototype are 79 GHz (static) and 129 GHz in dynamic mode. The 8880 μm 2 dynastat implemented in 90 nm silicon germanium (SiGe)-bipolar CMOS consumes 38 mA (static) and 19 mA (in dynamic mode) from a 4.5 V supply.

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Section: Introductionmentioning

confidence: 99%

Dynastat frequency divider with DC‐153 GHz range

Vera

Long

2015

Electron. lett.

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Analysis and Design of a Broadband Frequency Divider Using Modified Active Loads in GaAs HBT

Lv²,

Zhang³

et al. 2017

J CIRCUIT SYST COMP

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A modified divide-by-2 regenerative frequency divider (RFD) is presented in this paper. The effects of modified active loads on the bandwidth of RFD are demonstrated and analyzed in detail by introducing the equivalent circuit using [Formula: see text] model. Using the transimpedance amplifier structure with resistive shunt–shunt feedback and shunt-peaked inductor as the active loads of the generative frequency divider, the loop bandwidth and the loop gain can be increased at higher frequencies to extend the bandwidth. Based on the theoretical analysis and design methodology, an RFD with improved active loads is designed and fabricated in 1[Formula: see text][Formula: see text]m GaAs heterojunction bipolar transistor technology with a total chip area of 0.83[Formula: see text]mm[Formula: see text][Formula: see text][Formula: see text]0.75[Formula: see text]mm. The measured phase noise at the divider output is less than [Formula: see text]110[Formula: see text]dBc/Hz with 100[Formula: see text]kHz offset and is [Formula: see text]127.6[Formula: see text]dBc/Hz with 1[Formula: see text]MHz offset. The operation frequency range is from 10 to 26[Formula: see text]GHz. The power consumption of the divider core is 166.44[Formula: see text]mW, and the frequency bandwidth is 16[Formula: see text]GHz at a supply voltage of [Formula: see text]6[Formula: see text]V.

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Development of High Speed Clock Module and its Application to Array Model

Kawasaki¹,

Miyaguchi²,

Saitoh³

et al. 2012

Int. J. Automation Technol.

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A high speed optical clock module using a Vertical Cavity Surface Emitting Laser (VCSEL) and a spherical mirror is developed and this clock module is applied to an array model. The module will be used for Large Scale Integration (LSI) clock distribution. We developed a single module successfully, frequency of which was 39 GHz with a low threshold current. Moreover, we improved an assembly method for the module, proposed an array model design of this module, and assembled the array model. The array model was cut into four pieces. As a result, it was made clear to manufacture the module model by pasting and cutting accurately, and to manufacture a great amount of modules from array module, too.

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Wide-ratio broadband SiGe HBT regenerative frequency divider enhanced by differential TIA load

Cited by 3 publications

References 4 publications

Dynastat frequency divider with DC‐153 GHz range

Dynastat frequency divider with DC‐153 GHz range

Analysis and Design of a Broadband Frequency Divider Using Modified Active Loads in GaAs HBT

Development of High Speed Clock Module and its Application to Array Model

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