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After text activity

I. Reading Exercises:

Exercise 1. Read and memorize using a dictionary:

promise, performance, cutoff frequencies , lithography, gate lengths, inherent, is allotted, degradation, adaptable radios, circuit blocks, on-chip circuits, off-chip narrowband RF circuits, adjacent bands, off-chip filters, passband, heterodyne radios, intrinsic dc offsets.

Exercise 2. Answer the questions:

  1. What promise do new process technologies show?

  2. What is CMOS?

  3. What is BICMOS?

  4. How is a SiGe BICMOS process utilized?

Exercise 3. Match the left part with the right:

1. BICMOS offers performance that

a) inexpensive lithography

2. SiGe BICMOS can achieve these levels with

b) a narrow band of frequencies in a very broad spectrum

3. Each wireless standard is allotted

c) matching to off-chip narrowboard RF circuits

4. Multistandard radios will dynamically select on-chip circuit for

d) can enable universal or multistandard analog radios

Exercise 4. Open brackets choosing the right words:

In CMOS (apparatus/device) (velocities/speeds) are strongly determined by gate lenths which are now moving to (smaller/less) than 0.2 micron in order to (propose/offer) (velocity/speed) comparable to that of SiGe.

II. Speaking Exercises:

Exercise 1. Describe process technology; CMOS; BICMOS; IC; analog to digital converter using the suggested words and expressions as in example:

process technology

is; the semiconductor manufacturing flow; which; creates or fabricates; an integrated circuit.

example:

Process technology is the semiconductor manufacturing flow which creates or fabricates an integrated circuit.

CMOS

Complementary Metal Oxide on Silicon; enables; low power; high-density chips.

BICMOS

Bipolar Complementary Metal Oxide on Silicon; an integrated circuit; fabrication technology; that; combines; the two major; IC technology; bipolar and CMOS; on one IC.

IC (Integrated Circuit)

a silicon chip; containing hundreds; thousands; or; millions; of; circuits elements; such as; transistors; resistors; capacitors; and inductors.

analog –to- digital converter

converter; that; changes; real-world analog; signals; such as; light; and; sound; into; digital code.

Exercise 2. Ask questions to the given answers:

  1. Question: _____________________________?

Answer: Radios that comply with many wireless standards may be required to support the complexities inherent in third-and fourth generation wireless systems.

2) Question: _____________________________?

Answer: Adaptable radios will use the high-speed transistors to switch the microwave signals associated with differing wireless standards through circuit blocks configured for these standards.

  1. Question: _____________________________?

Answer: Independent of the radio standard being utilized radio must be capable of receiving signals as small as a few microvolts in the presence of unwanted signals in adjacent bands that may be more that 80-dB stronger

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