Audio Amplifiers CS4525

 

DescriptionPower (W)Dynamic Range (dB)THD+N (%)ChannelsPower Supply (V)Package

Amplifier

30

102

0.1

2.1

VP = 8 to 18; VD = 2.5 or 5

48 QFN

Digital Amplifier Features

• Fully Integrated Power MOSFETs
• No Heatsink Required
  • Programmable Power Foldback on Thermal Warning
  • High Efficiency (85%)
• > 100 dB Dynamic Range
• < 0.1% THD+N @ 1 W
• Configurable Outputs (10% THD+N)
  • 1 x 30 W into 4 , Parallel Full-Bridge
  • 2 x 15 W into 8 , Full-Bridge
  • 2 x 7 W into 4 , Half-Bridge + 1 x 15 W into 8 , Full-Bridge
• Built-In Protection with Error Reporting
  • Overcurrent/Undervoltage/Thermal Overload Shutdown
  • Thermal Warning Reporting
• PWM Popguard? for Half-Bridge Mode
• Click Free Start-Up
• Programmable Channel Delay for System Noise & Radiated Emissions Management

 

Also featured is an on-board digital audio processor, offering such features as parametric equalization, auxiliary output for lip-sync delay and bass management. In addition to stereo configurations that provide 15 watts per channel output, the IC can support 2.1-channel configurations (2 X 7.5 watts per channel plus 1 X 15 watts) as well a low-frequency effects configuration (1 X 30 watts). Additionally, Cirrus Logic offers OEMs a companion IC, the CS4412, which is a cost-effective power-stage only IC.

The CS4525 is notable because it integrates a stereo analog-to-digital converter, sample-rate converter, digital audio processor and a complete 30-watt Class D amplifier, including the controller and power stage. It supports both incoming analog and digital audio signals, and its highly efficient power stage eliminates the need for a heat sink in system designs.

Highly optimized for flat-panel digital television and docking station applications, the CS4525 is an innovative, highly integrated single-chip Class D Amplifier.

30 W Digital Audio Amplifier with Integrated ADC