Texas Instruments DEM-PCM2912A EVM manual

www.ti.comPlayback Performance

Table 4-1. Line Output Playback Performance

Power Supply	Performance	Filter Setting	RL	VOUTL	VOUTR
5.0 V	THD+N (0 dBFS at	400 Hz to 20 kHz	10 kΩ	0.0086%	0.0085%
	1 kHz)	Pre-Anlr
	SNR (BPZ input)	400 Hz to 20 kHz	10 kΩ	92.1 dB	92.1 dB
		Pre-Anlr
		+ A-weighting
	DR (–60 dBFS	400 Hz to 20 kHz	10 kΩ	90.3 dB	90.5 dB
	input)	Pre-Anlr
		+ A-weighting
	Channel Separation	400 Hz to 20 kHz	10 kΩ	89.3 dB	89.3 dB
	(BPZ input for target	Pre-Anlr
	channel)

Table 4-2. 32-ΩHeadphone Output Playback Performance

Power Supply	Performance	Filter Setting	RL	VOUTL	VOUTR
5.0 V	THD+N (0 dBFS at	400 Hz to 20 kHz	32 Ω	0.026%	0.025%
	1 kHz)	Pre-Anlr
	SNR (BPZ input)	400 Hz to 20 kHz	32 Ω	92.1 dB	92.1 dB
		Pre-Anlr
		+ A-weighting
	DR (–60 dBFS	400 Hz to 20 kHz	32 Ω	89.4 dB	89.4 dB
	input)	Pre-Anlr
		+ A-weighting

Table 4-3. 16-ΩHeadphone Output Playback Performance

Power Supply	Performance	Filter Setting	RL	VOUTL	VOUTR
5.0 V	THD+N (0 dBFS at	400 Hz to 20 kHz	16 Ω	0.044%	0.042%
	1 kHz)	Pre-Anlr
	SNR (BPZ input)	400 Hz to 20 kHz	16 Ω	92.1 dB	92.1 dB
		Pre-Anlr
		+ A-weighting
	DR (–60 dBFS	400 Hz to 20 kHz	16 Ω	89.4 dB	89.3 dB
	input)	Pre-Anlr
		+ A-weighting

SBAU141–January 2009	Evaluation and Measurements	35
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Texas Instruments DEM-PCM2912A EVM manual Line Output Playback Performance, ΩHeadphone Output Playback Performance

Contents

Users Guide Submit Documentation Feedback Contents List of Figures List of Tables Submit Documentation Feedback Information About Cautions and Warnings About This Manual How to Use This ManualRead This First Trademarks Related Documentation From Texas InstrumentsIf You Need Assistance FCC Warning Pin Assignments and Terminal Functions Description Introduction-PCM2912A Key Features TopView Pin Assignments and Terminal Functions Name DEM-PCM2912A EVM Functional Block Diagram Functional Block Diagram Submit Documentation Feedback Getting Started Interface and Connections Block DiagramDEM-PCM2912A EVM Connectors Electrostatic Discharge Warning Basic Operating Set-Up-Windows Vista Set-Up Guide Windows Vista Basic Operating Set-Up-Windows Vista Volume and Mute Settings To set the record volume Sampling Frequency To set the ADC sampling frequency Sound and Audio Devices Properties-Audio Tab Windows XP Basic Operating Set-Up-Windows XP Volume Settings Speaker Window for Volume Setting Windows XP Basic Operating Set-Up-Windows XP 12. Sound-Input Tab Mac OS Basic Operating Set-Up-Mac OS 13. Sound-Output Tab Mac OS 14. Audio Midi Setting Window Mac OS 15. QuickTime Audio Recording Controls 16. Audio Midi Setting Window Mac OS Submit Documentation Feedback Evaluation and Measurements Measurements for Dynamic Characteristics Playback Performance Measurements for Dynamic Characteristics ΩHeadphone Output Playback Performance Line Output Playback Performance Dout Recording Performance Schematics Printed Circuit Board Layout Component List Schematic, PCB Layout, and Bill of Materials DEM-PCM2912A EVM Schematic Schematics DEM-PCM2912A EVM Board Layout-Silkscreen Printed Circuit Board Layout Bill of Materials Component List Value2 FCC Warning Evaluation BOARD/KIT Important Notice Important Notice