# ENEE302 Digital Electronics, Spring 2004

(Homework#7 is for you to practice, and the solutions are in the textbook. Do not turn it in.)

ENEE302 (PermReq) Digital Electronics; (3 credits) Grade Method: REG.
Prerequisite: ENEE 204 and completion of all lower-division courses in the EE curriculum. Restricted to students with 09090 or 09991 major codes. See above note. Large signal terminal characteristics of PN junction diodes, Bipolar and MOSFET transistors. Digital electronics at transistor level: inverter, NAND, NOR AND, or gates. CMOS and TTL logic. Combinatorial and sequential digital circuits, memory design. Circuit simulation with SPICE.

0101(24436)

Lectures: MWF....... 9:00am- 9:50am (JMP 3201)

Tu........11:00am-11:50am (EGR 3114)

0102(24437)

Lectures: MWF....... 9:00am- 9:50am (JMP 3201)

Tu........ 9:30am-10:20am (EGR 3102)

Textbook: Microelectronics circuits by Sedra and Smith, 4th or 5th edition.   Office: Room 1323, AVW

Phone: (301)405-3673; e-mail: yang@eng.umd.edu
Grading method: Homework, 10%, midterm, 40%, and final, 50% (A: 90%; B: 80%; C: 70%; D: 60%; F: < 60%)
Office hours: Mon.&Wed., 1p.m.-2p.m., Rm 1323, AVW

Final exam. (Monday, May 17, 2004, 8-10a.m., CSS2324 ): Close-book, written exam. Bring a calculator. Put your personal belongings away beyond easy reach. No cell phones. No wireless equipment allowed, such as PDA, computer, etc.

Final examination topics:

1) One problem on single MOSFET amplifiers (CS, CS+Rs, CG, and CC configuration). As usual, be familiar with the dc analysis for voltages and currents everywhere, and the small signal ac analysis for input impedance, output impedance, and voltage gain.

2) One problem on Bode plots: given a tranfer function, which is already packaged in a polynomial form with known zero's and pole's, be ready to draw the (amplitude and phase) Bode plots.

3) One problem on CMOS inverter. Various aspects.

4) One problem on synthesizing a CMOS digital circuit: using the PUN and PDN concept, put together n-MOS and p-MOS transistors and implement a given logic function, such as a NOR gate.

5) And several other problems on digital circuits and simple concepts

Midterm examination (Wednesday, 3/31/04, room 2324, CSS building): Close-book, written exam. Bring a calculator.

Two circuits (out of four possibilities, including CE, CE/Re, CB, and CC amplifiers) for their dc (currents and voltages everywhere) and ac analysis (Rin, Rout, Av, and Ai). The difficulty level is the same as those in homework and textbook examples. No Bode plots this time --- we will use them in the final exam.

Syllabus

`Chapter and Subjects`
`                                                      `
`3      PN junction Diode`
`        The ideal diode                                                     `
`        Terminal characteristics                          `
`        SPICE`
`                                                                     `
`4      Bipolar transistor`
`        Structure                                               `
`        Active mode                                                         `
`        pnp                                                                       `
`        Symbol                                                                 `
`        Graphical representation                        `
`        DC circuits                                            `
`        Biasing                                                                  `
`        Cutoff/Saturation                                   `
`        Pi-model`
`        Small signal equivalent circuit`
`        Common emitter, common base, and common collector amplifiers                                                                                                                `
`5      MOSFET`
`        Structure                                               `
`        IV curve                                                `
`        Depletion mode                                     `
`        DC circuits                                            `
`        MOS amplifier                                                                     `
`        Biasing                                                  `
`        Inverter                                                 `
`        Switch                                                                  `
`        Pi-model  `
`        Small signal equivalent circuit`
`        Common source, common gate, and common drain amplifiers                                             `
`                                                                                    `
`6      Bipolar transistors`
`        Bipolar diff-pair                                                    `
`        MOS diff-pair                                                       `
`7      Diff amp                                                `
`        Frequency response of a typical common source, single MOSFET amplifier`
`        `
`8      General concept of feedback and its applications   `
`                                       `
`12    Application in digital circuits`
`        Bistable multivibrator                                             `
`        Pulse                                                     `
`        Timer                                                    `
`        Shaping                                                 `
`        Rectifier                                                 `
`                                                      `
`13    Overview                                              `
`        CMOS inverter                                     `
`        13.CMOS gates                                    `
`        NMOS gates                                         `
`        Pass Transistor Gates                            `
`        Dynamic logic                         `
`        Latch/FF                                               `
`        Multivibrator                                                         `
`        MEMORY                                                           `
`        RAM                                                                    `
`        Sensing                                                                 `
`        ROM                                                                   `
`                                                                                    `
`14    Dynamic operation                                 `
`        BJT digital circuits                                  `
`        TTL                                                                      `
`        ECL                                                                     `
`        BiCMOS                                                              `
`                                                                     `
`                                                                                                                                  `