Features: • >90% efficiency
• 4 / 8 drive capability
• Noise Floor -115dB for solution
• Flat response 20Hz - 20kHz
• High gate drive capability ( 2200pF)
• Very low THD + N 0.2% typical full 90% power, full band ( for the solution)
• Complete absence of crossover artifacts
• OSC output available for sync in multi-channel applications
• Available in a 16 pin exposed pad QSOP packageApplication• DVD Players
• Automotive audio systems
• Home Theatre
• Multimedia
• Wireless speakers
• Portable audio
• Sub woofer systems
• Public Address systemPinout
SpecificationsVCC 20V
Power Dissipation 1W
Package Thermal Resistance (ja) 54/W
Operating Temperature Range -40 to 70
Maximum Junction Temperature 125
Storage Temperature Range -50 to 85
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum conditions for extended periods may affect device reliability.
DescriptionThe ZXCD1000 provides complete control and modulation functions at the heart of a high efficiency high performance Class D switching audio amplifier solution. In combination with Zetex HDMOS MOSFET devices, the ZXCD1000 provides a high performance audio amplifier with all the inherent benefits of Class D.
The ZXCD1000 solution uses proprietary circuit design to realise the true benefits of Class D without the traditional drawback of poor distortion performance. The combination of circuit design, magnetic component choice and layout are essential to realising these benefits.
The ZXCD1000 reference designs give output powers up to 100W rms with typical open loop (no feedback) distortion of less than 0.2% THD + N over the entire audio frequency range at 90% full output power. This gives an extremely linear system. The addition of a minimum amount of feedback (10dB) further reduces distortion figures to give < 0.1 % THD + N typical at 1kHz.
From an acoustic point of view, even more important than the figures above, is that the residual distortion is almost totally free of any crossover artifacts. This allows the ZXCD1000 to be used in true hi-fi applications. This lack of crossover distortion, sets the ZXCD1000 solutions quite apart from most other presently available low cost solutions, which in general suffer from severe crossover distortion problems
ZXCD1000 Data Sheet
