Line Output Playback Performance - Texas Instruments DEM-PCM2912 EVM User Manual

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Power Supply
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Power Supply
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Power Supply
5.0 V
SBAU132 – March 2008
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Table 4-1. Line Output Playback Performance
Performance Filter Setting
THD+N (0 dBFS at 400 Hz to 20 kHz
1 kHz) Pre-Anlr
SNR (BPZ input) 400 Hz to 20 kHz
Pre-Anlr
+ A-weighting
DR (–60 dBFS 400 Hz to 20 kHz
input) Pre-Anlr
+ A-weighting
Channel Separation 400 Hz to 20 kHz
(BPZ input for target Pre-Anlr
channel)
Table 4-2. 32-Ω Headphone Output Playback Performance
Performance Filter Setting
THD+N (0 dBFS at 400 Hz to 20 kHz
1 kHz) Pre-Anlr
SNR (BPZ input) 400 Hz to 20 kHz
Pre-Anlr
+ A-weighting
DR (–60 dBFS 400 Hz to 20 kHz
input) Pre-Anlr
+ A-weighting
Table 4-3. 16-Ω Headphone Output Playback Performance
Performance Filter Setting
THD+N (0 dBFS at 400 Hz to 20 kHz
1 kHz) Pre-Anlr
SNR (BPZ input) 400 Hz to 20 kHz
Pre-Anlr
+ A-weighting
DR (–60 dBFS 400 Hz to 20 kHz
input) Pre-Anlr
+ A-weighting
R V L
L OUT
10 kΩ 0.0086%
10 kΩ 92.1 dB
10 kΩ 90.3 dB
10 kΩ 89.3 dB
R V L
L OUT
32 Ω
0.026%
32 Ω
92.1 dB
32 Ω
89.4 dB
R V L
L OUT
16 Ω
0.044%
16 Ω
92.1 dB
16 Ω
89.4 dB
Evaluation and Measurements
Playback Performance
V R
OUT
0.0085%
92.1 dB
90.5 dB
89.3 dB
V R
OUT
0.025%
92.1 dB
89.4 dB
V R
OUT
0.042%
92.1 dB
89.3 dB
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