Cirrus Logic CS4525 Reference Design

(All Rights Reserved) 2 x 15 W CS4525 Digital Amplifier Reference Design Features � Output Filters Optimized for 8 Ω Loads � Delivers 15 W/Ch into 8 Ω at 0.5 % THD+N � Single-Ended 2 VRMS Stereo Analog Inputs � Optical and Coaxial S/PDIF Inputs � Demonstrates EMI Compliant Design per FCC ...

1. SYSTEM OVERVIEW ............................................................................................................................. 4 1.1 Power ............................................................................................................................................... 4 1.2 CS4525 Digita ...

Figure 17.FFT at -60 dB Input ................................................................................................................... 26 Figure 18.FFT at 0 dB Input ................. ...

The CRD4525-Q1 reference design is an excellent means for evaluating the CS4525 30 W digital amplifier with in- tegrated ADC. Analog and digital audio input signal interfaces are provided; an on-board microcontroller and USB PC interface is used for easily configuring the CS4525’s internal registers, and stand-alone ...

maintain signal integrity. The 8-pin, 2 column header, J11, provides access to the CS4525’s auxiliary serial audio port output signals, as well as the SYS_CLK output signal. A single ground column is provided to maintain signal ...

Logic FlexGUI application. If necessary, this application (downloadable at www.cirrus.com/msasoftware) will automatically upgrade the firmware for an attached CRD4525-Q1 upon start-up. 1.10 External Power Stage Interface A keyed connec ...

The CRD4525-Q1 is designed for use with the Microsoft® Windows-based FlexGUI graphical user interface. This interface provides comprehensive control over the CS4525’s internal registers via a PC’s USB port. The FlexGUI software may be downloaded and installed from www.cirrus.com/msasoftware. Step-by-step inst ...

The CS4525 Aux & Filter Controls tab provides a high-level, intuitive interface to many of the advanced con- figuration options of the CS4525. Use this tab to configure the auxiliary port, the internal filters, and ad- vanced PWM adjustments. Control over device and board resets is also provided. The ...

When the CRD4525-Q1 is configured to make use of the CS8416 S/PDIF receiver, the devices must be configured for proper operation. The S/PDIF Input Controls tab provides a high-level, intuitive interface to the most common configuration options of the CS8416. Figure 4. S/PDIF Input Controls Tab ...

The Register Maps tab provides an easy register-level interface to the on-board devices. Register values can be modified on a bit-wise or byte-wise basis. To modify a single bit, first select the register by clicking its position in the register matrix; then click the appropriate push-button for the desired bit. T ...