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Small Signal Audio Design / Douglas Self.

O'Reilly Online Learning: Academic/Public Library Edition Available online

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Format:
Book
Author/Creator:
Self, Douglas, author.
Language:
English
Subjects (All):
Audio amplifiers--Design and construction.
Audio amplifiers.
Sound--Recording and reproducing.
Sound.
Signal processing.
Physical Description:
1 online resource (847 pages)
Edition:
Fourth edition.
Place of Publication:
New York, NY : Routledge, [2024]
Summary:
Small Signal Audio Design is a highly practical handbook providing an extensive repertoire of circuits that can be assembled to make almost any type of audio system. This fully revised fourth edition offers wholly new content on internally balanced audio design, electret microphones, emitter-follower stability, microphony in capacitors, and much, much more. This book continues the engaging prose style familiar to readers as you learn why mercury-filled cables are not a good idea, the pitfalls of plating gold on copper, and what quotes from Star Trek have to do with PCB design. Learn how to: make amplifiers with apparently impossibly low noise design discrete circuitry that can handle enormous signals with vanishingly low distortion transform the performance of low-cost opamps build active filters with very low noise and distortion while saving money on expensive capacitors make incredibly accurate volume controls make a huge variety of audio equalisers use load synthesis to make magnetic cartridge preamplifiers that have noise so low it is limited by basic physics sum, switch, clip, compress, and route audio signals build simple but ultra-low noise power supplies be confident that phase perception is not an issue Including all the crucial theories, but with minimal mathematics, Small Signal Audio Design is the must-have companion for anyone studying, researching, or working in audio engineering and audio electronics.
Contents:
Cover
Endorsements
Half Title
Title
Copyright
Dedication
Contents
Preface
Acknowledgments
Chapter 1 The basics
Signals
Unbalanced and balanced signals
Internally balanced design
600-Ohm lines
Amplifiers
Voltage amplifiers
Transconductance amplifiers
Current amplifiers
Transimpedance amplifiers
Negative feedback
Nominal signal levels and dynamic range
Frequency response
Frequency response: cascaded stages
Phase perception
Gain structures
Amplification then attenuation
Attenuation then amplification
Raising the input signal to the nominal level
Active gain controls
Noise
Johnson noise
Shot noise
1/f noise (flicker noise)
Popcorn noise
Summing noise sources
Noise in amplifiers
Noise in bipolar transistors
Bipolar transistor voltage noise
Bipolar transistor current noise
Noise in JFETs
Noise in opamps
Noise gain
Low-noise opamp circuitry
Noise measurements
How to attenuate quietly
How to amplify quietly
How to invert quietly
How to balance quietly
Ultra-low noise design with multipath amplifiers
Ultra- low noise voltage buffers
The 32-times 5532 opamp power amplifier
Ultra-low noise amplifiers
Multiple amplifiers for greater drive capability
Chapter 2 Components
Conductors
Copper and other conductive elements
The metallurgy of copper
Gold and its uses
Tin and its uses
Cable and wiring resistance
Printed circuit boards (PCBs)
PCB track resistance
PCB track-to-track crosstalk
The 3-layer PCB
Impedances and crosstalk: a case history
Resistors
Through-hole resistors
Surface-mount resistors
Resistor series
Resistor accuracy: two resistor combinations
Resistor accuracy: three resistor combinations
Other resistor combinations.
Resistor value distributions
The uniform distribution
Resistor imperfections
Resistor excess noise
Resistor non-linearity
Capacitors
Capacitor series
Capacitor non-linearity examined
Non-electrolytic capacitor non-linearity
Electrolytic capacitor non-linearity
Capacitor microphony
Inductors
Chapter 3 Discrete transistor circuitry
Why use discrete transistor circuitry?
Bipolars and FETs
Bipolar junction transistors
The transistor equation
Transconductance
Beta
Unity-gain buffer stages
The simple emitter-follower
The constant-current emitter-follower
The push-pull emitter-follower
Emitter-follower stability
JFET source-followers
CFP-followers
CFP-follower stability
Improved unity-gain buffers
Gain stages
One-transistor shunt-feedback gain stages
One-transistor series-feedback gain stages
Two-transistor shunt-feedback amplifiers
Two-transistor shunt-feedback stages: improving linearity
Two-transistor shunt-feedback stages: noise
Two-transistor shunt-feedback stages: bootstrapping
Two-transistor shunt-feedback stages as summing amplifiers
Three-transistor cascode shunt-feedback stages
Two-transistor series-feedback gain stages
Discrete opamp design
Discrete opamp design: the input stage
Discrete opamp design: the second stage
Discrete opamp design: the output stage
Chapter 4 Opamps and their properties
Introduction
A very brief history of opamps
Opamp properties: noise
Opamp properties: slew rate
Opamp properties: common-mode range
Opamp properties: input offset voltage
Opamp properties: bias current
Opamp properties: cost
Opamp properties: distortion
Opamp internal distortion
Slew rate limiting distortion
Distortion due to loading
Thermal distortion
Common-mode distortion.
Common-mode distortion: bipolar input opamps
Common-mode distortion: JFET opamps
Selecting the right opamp
Opamps surveyed: BJT input types
The LM741 opamp
The NJM4580 opamp
The NJM8068 opamp
The NE5532/5534 opamp
5532 output loading in shunt feedback mode
The 5532 with series feedback
Common-mode distortion in the 5532
Reducing 5532 distortion by output stage biasing
Which 5532?
The 5534 opamp
Deconstructing the 5532
The LM4562 opamp
The AD797 opamp
The OP27 opamp
The OP270 opamp
The OP275 opamp
Opamps surveyed: JFET input types
The TL072 opamp
The OPA2134 opamp
The OPA604 opamp
The OPA627 opamp
Chapter 5 Opamps for low voltages
High fidelity from low voltages
Running opamps from a single +5 V supply rail
Opamps for +5 V operation
The NE5532 in +5 V operation
The LM4562 in +5 V operation
The AD8022 in +5 V operation
The AD8397 in +5 V operation
Opamps for 3.3 V single-rail operation
Chapter 6 Filters
Passive filters
Active filters
Lowpass filters
Highpass filters
Combined lowpass and highpass filters
Bandpass filters
Notch filters
All-pass filters
Filter characteristics
Sallen &amp
Key lowpass filters
Key highpass filters
Amplitude peaking and Q in lowpass and highpass Sallen &amp
Key filters
Key bandpass filters
Key notch filters
Distortion in Sallen &amp
Mixed capacitors in low-distortion Sallen &amp
Multiple-feedback bandpass filters
Other notch filters
Higher-order filters
Switched-slope filters
Differential Filters
Chapter 7 Preamp architecture
Passive preamplifiers
Active preamplifiers
Amplification and the gain-distribution problem
Active gain controls.
Active gain controls plus passive attenuators
Recording facilities
Tone controls
Chapter 8 Variable gain stages
Amplifier stages with gain from unity upwards: single gain pot
Amplifier stages with gain from unity upwards: dual gain pot
Combining gain stages with active filters
Amplifier stages with gain from zero upwards: single gain pot
Amplifier stages with gain from zero upwards: dual gain pot
Switched-gain amplifiers
Chapter 9 Moving-magnet inputs: levels and RIAA equalisation
Cartridge types
The vinyl medium
Spurious signals
Other vinyl problems
Maximum signal levels from vinyl
Moving-magnet cartridge sensitivities
Overload margins and amplifier limitations
Equalisation and its discontents
The unloved IEC amendment
The 'Neumann pole'
MM amplifier configurations
Opamp MM input stages
Calculating the RIAA equalisation components
Implementing RIAA equalisation
Implementing the IEC amendment
RIAA series-feedback network configurations
RIAA optimisation: C1 as a single E6 capacitor, 2xE24
RIAA optimisation: C1 as 3x10 nF capacitors, 2xE24
RIAA optimisation: C1 as 4x10 nF capacitors, 2xE24
RIAA optimisation: the Willmann Tables
RIAA optimisation: C1 as 3x10 nF capacitors, 3xE24
RIAA optimisation: C1 as 4x10 nF capacitors, 3xE24
Switched-gain MM RIAA amplifiers
Switched-gain MM/MC RIAA amplifiers
Open-loop gain and RIAA accuracy
Passive and semi-passive RIAA equalisation
MM cartridge loading and frequency response
MM cartridge-preamplifier interaction
MM cartridge DC and AC coupling
Noise in MM RIAA preamplifiers
Hybrid MM amplifiers
Balanced MM inputs
Noise in balanced MM inputs
Noise weighting
Cartridge load synthesis for lower noise
Subsonic filters
Subsonic filtering: Butterworth filters.
Subsonic filtering: elliptical filters
Subsonic filtering by cancellation: the Devinyliser
Ultrasonic filters
A practical MM amplifier #3
Chapter 10 Moving-coil head amplifiers
Moving-coil cartridge characteristics
The limits on MC noise performance
Amplification strategies
Moving-coil transformers
Moving-coil input amplifiers
An effective MC amplifier configuration
The complete circuit
Performance
Opamp arrays for MC preamps
Chapter 11 Tape replay
The return of tape
A brief history of tape recording
The basics of tape recording
Multitrack recording
Tape heads
Tape replay
Tape replay equalisation
Tape replay amplifiers
Replay noise: calculation
Replay noise: measurements
Load synthesis
Noise reduction systems
Dolby HX-pro
Chapter 12 Guitar preamplifiers
Electric guitar technology
Guitar pickups
Pickup characteristics
Guitar wiring
Guitar leads
Guitar preamplifiers
Guitar preamplifier noise: calculations
Guitar preamplifier noise: measurements
Guitar amplifiers and guitar effects
Guitar direct injection
Chapter 13 Volume controls
Volume controls
Volume control laws
Loaded-linear pots
Dual-action volume controls
Tapped volume controls
Slide faders
Active volume controls
The Baxandall active volume control
The Baxandall volume control law
A practical Baxandall active volume stage
Low noise Baxandall active volume stages
The Baxandall volume control: loading effects
An improved Baxandall active volume stage with lower noise
Baxandall active volume stage plus passive control
The overlap penalty
Potentiometers and DC
Belt-ganged volume controls
Motorised potentiometers
Stepped volume controls
Switched attenuator volume controls
Relay-switched volume controls.
Transformer-tap volume controls.
Notes:
Includes index.
Description based on print version record.
Other Format:
Print version: Self, Douglas Small Signal Audio Design
ISBN:
1-000-98834-1
1-000-98832-5
9781003332985
OCLC:
1395553892

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