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*BLOCK* *DIAGRAM*

, 1997

"... • Optimized For Off-line and DC-to-DC The UC1842/3/4/5 family of control devices provides Converters the necessary features to implement off-line or • Low Start-Up Current (<1 mA) dc-to-dc fixed frequency current mode control schemes with a minimal external parts count. • Automatic Feed Forward C ..."

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• Optimized For Off-line and DC-to-DC The UC1842/3/4/5 family of control devices provides Converters the necessary features to implement off-line or • Low Start-Up Current (<1 mA) dc-to-dc fixed frequency current mode control schemes with a minimal external parts count. • Automatic Feed Forward Compensation Internally implemented circuits include under-voltage • Pulse-by-Pulse Current Limiting lockout featuring start up current less than 1 mA, a • Enhanced Load Response Characteristics precision reference trimmed for accuracy at the error • Under-Voltage Lockout With Hysteresis amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, • Double Pulse Suppression and a totem pole output stage designed to source or

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Hierarchical Hybrid *Block* *Diagrams*

"... Block diagram languages are now commonly used to design and even implement embedded systems. In the design phase, they are used to model both plant and controller, typically with continuous and discrete modeling respectively. The semantics of these languages are often vague and/or complex, which is ..."

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*Block*

*diagram*languages are now commonly used to design and even implement embedded systems. In the design phase, they are used to model both plant and controller, typically with continuous and discrete modeling respectively. The semantics of these languages are often vague and/or complex, which

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*Block* *Diagrams*: Modeling and Simulation

"... Block diagrams are usually part of a larger visual programming environment. Other parts of the environment may include numerical algorithms for integration, real-time interfacing, code generation, and hardware interfacing for high-speed applications. Block diagram models consist of two fundamenta ..."

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*Block*

*diagrams*are usually part of a larger visual programming environment. Other parts of the environment may include numerical algorithms for integration, real-time interfacing, code generation, and hardware interfacing for high-speed applications.

*Block*

*diagram*models consist of two

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COMPLEXITY MEASURE FOR *BLOCK* *DIAGRAMS*

"... ABSTRACT – The concept of complexity has been widely studied in the last years in several different areas. Although many writers on the subject understand qualitatively similar things by the term ”complexity”, a transition from this qualitative understanding to a quantitative approach would be highl ..."

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. The objective of this paper is to present a method to quantify the static complexity of a

*block**diagram*in a way that can be useful for process control structure selection. The method is applied in several examples. The importance of this evaluation is to help to produce good control structures###
Abstract An Algebra for *Block* *Diagram* Languages

"... We propose an algebraic approach to block diagram construction as an alternative to the classical graph approach inspired by dataflow models. The proposed algebra is based on three binary operations of construction: sequential, parallel and recursive constructions. These operations can be seen as hi ..."

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We propose an algebraic approach to

*block**diagram*construction as an alternative to the classical graph approach inspired by dataflow models. The proposed algebra is based on three binary operations of construction: sequential, parallel and recursive constructions. These operations can be seen###
An Algebraic approach to *Block* *Diagram* Constructions

, 2002

"... We propose an algebraic approach to block diagram construction as an alternative to the classical graph ap-proach inspired by dataflow models. The proposed al-gebra is based on three binary operations of construc-tion: sequential, parallel and recursive constructions. These operations can be seen as ..."

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We propose an algebraic approach to

*block**diagram*construction as an alternative to the classical graph ap-proach inspired by dataflow models. The proposed al-gebra is based on three binary operations of construc-tion: sequential, parallel and recursive constructions. These operations can be seen###
FUNCTIONAL *BLOCK* *DIAGRAM*

"... The AD9870 is a general-purpose IF subsystem that digitizes a low-level 10 MHz–300 MHz IF input with a bandwidth of up to 150 kHz. The signal chain of the AD9870 consists of a low-noise amplifier, a mixer, a variable gain amplifier with integral antialias filter, a bandpass sigma-delta analog-to-dig ..."

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-to-digital converter, and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit provides the AD9870 with 25 dB of continuous gain adjustment. The high dynamic range of the bandpass sigma-delta converter allows the AD9870 to cope with

*blocking*signals that are as much as 70 d###
FUNCTIONAL *BLOCK* *DIAGRAM*

"... Receive path includes dual 10-bit analog-to-digital converters with internal or external reference, 50 MSPS and 80 MSPS versions Transmit path includes dual 10-bit, 200 MSPS digital-toanalog converters with 1×, 2×, or 4 × interpolation and programmable gain control Internal clock distribution block ..."

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Receive path includes dual 10-bit analog-to-digital converters with internal or external reference, 50 MSPS and 80 MSPS versions Transmit path includes dual 10-bit, 200 MSPS digital-toanalog converters with 1×, 2×, or 4 × interpolation and programmable gain control Internal clock distribution

*block*###
FUNCTIONAL *BLOCK* *DIAGRAM*

"... Dual 16-bit ADC in enhanced package for extended temperature range of −55°C to +85°C 1.8 V analog supply operation LVDS output SNR: 80.5 dBFS at 30 MHz input and 105 MSPS data rate SFDR: 93 dBc at 30 MHz input and 105 MSPS data rate Low power: 328 mW per channel at 105 MSPS Integer 1-to-8 input cloc ..."

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Dual 16-bit ADC in enhanced package for extended temperature range of −55°C to +85°C 1.8 V analog supply operation LVDS output SNR: 80.5 dBFS at 30 MHz input and 105 MSPS data rate SFDR: 93 dBc at 30 MHz input and 105 MSPS data rate Low power: 328 mW per channel at 105 MSPS Integer 1-to-8 input clock divider IF sampling frequencies up to 300 MHz Analog input range of 2.7 V p-p Optional on-chip dither Integrated ADC sample-and-hold inputs Differential analog inputs with 500 MHz bandwidth ADC clock duty cycle stabilizer (DCS)