CLASS-D
From emboxit
Contents
car class-d amplifiers
- Complete amplifiers for cars at classd.info Check ICs used, psu used
Philips UM10155 patented
- Discrete design on Philips patent UM10155 Dual PSU needed, good to study
design principles
- Design principles sound.westhost.com
- NBitWonder design blog
SA58672
- NXP SA58672 datasheet
- 3W
- 2 V to 5.5 V
- Buy at Newark price $1.18
TPA3122
- TI TPA3122 15-W STEREO CLASS-D AUDIO POWER AMPLIFIER datasheet
- TPA3122D2 Evaluation Module product page
- TPA3122D2 EVM Users Guide
- Buy at digikey price $2.94
- 15 W
- 10-30 V
- 20-DIP
- 4 gains
- Stereo
- The 2 channels can be bridged to drive a single mono
TFA9881 TFA9882
- TFA9881 TFA9882
- TFA9881 at digikey price $1,61
- 2.5 V ~ 5.5 V
- 3.4W x 1 @ 4 Ohm
- 9WLCS package = very small...
Smallest digital-in mono Class D audio amplifier- NXP The ultra small mono digital-input (PDM or I2S) Class-D audio amplifier, family delivers up to 3.4 W of power, has ultra-low quiescent power consumption (6.5 mW), minimizes RF susceptibility, and is optimized for low-power portable and mobile applications
IRS2092
- 2 External Mosfets
- 16-DIP
- 12 V
- IR IRS2092 product page
- IR IRS2092 datasheet
- Application note an-1138
- Buy at Digikey price $5.2
- Buy SO16 at very low price mouser price EU 1.34
- NO MORE GOOD PRICE
- Evaluation board too expensive digikey price $230.7
- Very detailed evaluation board manual iraudamp7s.pdf
- All through-hole components on single layer PCB
- Gerber files and more here
MAX9744
- MAX9744 20W Stereo Class D Speaker Amplifier datasheet
- MAX9744ETH+ IC AMP AUDIO PWR 22.5W D 44TQFN digikey price $4.83
- MAX9744 Evaluation Kit/ datasheet
- MAX9744EVCMAXQU, MAX9744EVKIT product page
- 20 W
- 4.5 - 14 V
- Volume control (I2C or standalone)
notes
