#634 Audio IC Users Handbook
Book notes: Audio IC Users Handbook, by R.M. Marston. First published January 1, 1997.
Notes
See also:
Contents
| Chapter | LEAP? |
|---|---|
| 1. Audio Basics | |
| 2. Op-amp audio processing circuits | |
| 3. Dedicated audio processing IC circuits | |
| 4. Audio Pre-amplifier circuits | |
| 5. Audio power-amplifier circuits | |
| 6. High-power audio amplifiers | |
| 7. LED bar graph displays | |
| 8. Audio delay-line systems and circuits | |
| 9. Power supply circuits | |
| 10 End notes |
3. Dedicated audio processing IC circuits
| chip | description |
|---|---|
| MC3340P | electronic attenuator |
| NE570/571 | dual compandor |
| LM1398 | stereo dynamic noise reduction |
| LM1037 | dual 4-channel analogue switch |
| CMOS 4016/4066 | high speed digital switch |
| 74HC4052 | dual 4-channel anaog multiplexer |
| LM1036 | stereo dc-controlled tone/vol/balance |
| LMC1983 | digital control 3-channel stereo selector and tone/volume control |
| MF10C | dual switched-capacitor filter |
4. Audio Pre-amplifier circuits
- LM387 dual pre-amp IC
- LM833 dual audio op-amp
5. Audio power-amplifier circuits
ideal power amp can deliver power to external load (speaker) without significant distortion and without overheating or consuming excessive quiescent current.
Class A
- single BJT
- input heavily forward biased
- simple
- good low-distortion
- high quiescent current
Class B
- pair unbiased transistors
- near zero quiescent current
- very high levels of signal distortion
Class AB
- eliminate class B cross over distortion with slight forward bias
- modest quiescent current
Practical Op-Amp Circuits
- LM386
- LM381
- TDA7052
- LM388
- TDA2822
- LM1877
- LM380/384