21.09.2012, 04:35 PM
Krankes Teil, guckst du hier:
http://www.maximintegrated.com/datasheet...p/id/7428/
Kann gesampled werden, beim Preis von 20$@1k sollte man aber nicht mehr als 2 "bestellen".
http://www.maximintegrated.com/datasheet...p/id/7428/
Kann gesampled werden, beim Preis von 20$@1k sollte man aber nicht mehr als 2 "bestellen".
Zitat:The MAX13301 combines four high-efficiency Class D amplifiers with integrated diagnostic hardware for reliable automotive audio systems, and delivers up to 80W at 10% THD+N per channel into 4Ω when operating from a 24V supply.
The internal diagnostics evaluate each channel's output impedance to check for shorts across the outputs, to the battery, or to ground. The I²C interface allows the system to query critical device parameters such as device temperature and output clipping. The device is programmable to four different I²C addresses.
The audio amplifiers feature single-ended analog inputs with a common negative input. The MAX13301 has a fixed gain of 26dB.
The Class D amplifier has 10 programmable switching frequencies between 300kHz and 750kHz.
The BTL outputs are protected against short circuits and thermal overload. The outputs can be configured as a 2-, 3-, or 4-channel amplifier. The device provides 50V load-dump protection, and is offered in the thermally enhanced, 48-pin TSSOP-EPR package operating over the -40°C to +125°C temperature range.
- High Output Power (10% THD+N)
2 x 160W into 2Ω at 24V
4 x 80W into 4Ω at 24V
- 2 Channels Can Be Paralleled
- Feedback After the Filter
Improves THD+N
Low Output Impedance
High-Frequency Response
Improved Damping of Complex Loads
Enables Low-Cost Inductors
- 102dB SNR
- Low 0.04% THD+N
- 70dB PSRR
- On-Board Diagnostics
Short-to-Battery/GND
Open/Shorted Load
Tweeter Detect
- Protection and Monitoring Functions:
Short-Circuit Protection
50V Load-Dump Protection
Programmable Clip Detection
DC Offset Detection
Open Battery/GND Tolerant
Thermal-Overload Protection
Thermal Warning Indication
- Four-Address I²C Control Interface
- Low-Power Shutdown Mode
- Up to 90.5% Efficiency
- -40°C to +125°C Ambient Operating Temperature
- 48-Pin TSSOP-EPR (Top Side Exposed Pad) Package
- AEC-Q100 Qualified