CDB4362A Evaluation Board for CS4362A Features Description The CDB4362A evaluation board is an excellent means for quickly evaluating the CS4362A 24-bit, 48-pin, 6- Demonstrates recommended layout and channel D/A converter. Evaluation requires an analog grounding arrangements signal analyzer, a digital signal source, a PC for control- ling the CS4362A (only required for control port mode), CS8416 receives S/PDIF, & EIAJ-340 and a power supply. Analog line-level outputs are pro- compatible digital audio vided via RCA phono jacks. The CS8416 digital audio receiver IC provides the sys- Headers for external audio input for either PCM tem timing necessary to operate the digital-to-analog or DSD converter and will accept S/PDIF and EIAJ-340-com- patible audio data. The evaluation board may also be configured to accept external timing and data signals for Requires only a digital signal source and Power operation in a user application during system supplies for a complete digital-to-analog development. converter system ORDERING INFORMATION CDB4362A Evaluation Board Hardware or Software Board Control Inputs for PCM Clocks and Data CS8416 Analog Outputs Digital Audio CS4362A and Filtering Interface Inputs for DSD Clocks and Data MAY 08 Copyright Cirrus Logic, Inc. 2008 CDB4362A TABLE OF CONTENTS 1. CS4362A DIGITAL-TO-ANALOG CONVERTER ................................................................................... 4 2. CS8416 DIGITAL AUDIO RECEIVER .................................................................................................... 4 3. INPUT FOR CLOCKS AND DATA ......................................................................................................... 4 4. INPUT FOR CONTROL DATA ............................................................................................................... 5 5. POWER SUPPLY CIRCUITRY ............................................................................................................... 5 6. GROUNDING AND POWER SUPPLY DECOUPLING .......................................................................... 5 7. ANALOG OUTPUT FILTERING ............................................................................................................. 5 8. PERFORMANCE PLOTS ....................................................................................................................... 7 9. CDB4362A SCHEMATICS ................................................................................................................... 17 10. REVISION HISTORY .......................................................................................................................... 30 LIST OF FIGURES Figure 1.FFT (48 kHz, 0 dB) ....................................................................................................................... 7 Figure 2.FFT (48 kHz, -60 dB) .................................................................................................................... 7 Figure 3.FFT (48 kHz, No Input) ................................................................................................................. 7 Figure 4.FFT (48 kHz Out-of-Band, No Input) ............................................................................................. 7 Figure 5.FFT (48 kHz -60 dB Wideband) .................................................................................................... 8 Figure 6.FFT (IMD 48 kHz) ......................................................................................................................... 8 Figure 7.48 kHz, THD+N vs. Input Freq ...................................................................................................... 8 Figure 8.48 kHz, THD+N vs. Level ............................................................................................................. 8 Figure 9.48 kHz, Fade-to-Noise Linearity ................................................................................................... 8 Figure 10.48 kHz, Frequency Response ..................................................................................................... 8 Figure 11.48 kHz, Crosstalk ........................................................................................................................ 9 Figure 12.48 kHz, Impulse Response ......................................................................................................... 9 Figure 13.48 kHz, Impulse Prefilter ............................................................................................................. 9 Figure 14.Dynamic Range 48 kHz ............................................................................................................ 10 Figure 15.FFT (96 kHz, 0 dB) ................................................................................................................... 10 Figure 16.FFT (96 kHz, -60 dB) ................................................................................................................ 10 Figure 17.FFT (96 kHz, No Input) ............................................................................................................. 11 Figure 18.FFT (96 kHz Out-of-Band, No Input) ......................................................................................... 11 Figure 19.FFT (96 kHz, -60 dB Wideband) ............................................................................................... 11 Figure 20.FFT (IMD 96 kHz) ..................................................................................................................... 11 Figure 21.96 kHz, THD+N vs. Input Freq .................................................................................................. 11 Figure 22.96 kHz, THD+N vs. Level ......................................................................................................... 11 Figure 23.96 kHz, Fade-to-Noise Linearity ............................................................................................... 12 Figure 24.96 kHz, Frequency Response ................................................................................................... 12 Figure 25.96 kHz, Crosstalk ...................................................................................................................... 12 Figure 26.96 kHz, Impulse Response ....................................................................................................... 12 Figure 27.96 kHz, Impulse Prefilter ........................................................................................................... 12 Figure 28.Dynamic Range 96 kHz ............................................................................................................ 13 Figure 29.FFT (192 kHz, 0 dB) ................................................................................................................. 13 Figure 30.FFT (192 kHz, -60 dB) .............................................................................................................. 13 Figure 31.FFT (192 kHz, No Input) ........................................................................................................... 14 Figure 32.FFT (192 kHz Out-of-Band, No Input) ....................................................................................... 14 Figure 33.FFT (192 kHz, -60 dB Wideband) ............................................................................................. 14 Figure 34.FFT (IMD 192 kHz) ................................................................................................................... 14 Figure 35.192 kHz, THD+N vs. Input Freq ................................................................................................ 14 Figure 36.192 kHz, THD+N vs. Level ....................................................................................................... 14 Figure 37.192 kHz, Fade-to-Noise Linearity ............................................................................................. 15 Figure 38.192 kHz, Frequency Response ................................................................................................. 15 Figure 39.192 kHz, Crosstalk .................................................................................................................... 15 Figure 40.192 kHz, Impulse Response ..................................................................................................... 15 2 DS617DB3