Manual

DS803DB2 7
CDB4353
11.PERFORMANCE PLOTS
Test conditions (unless otherwise specified): TA = 25°C; VCP = VA = VL = 3.3 V; AGND = DGND =CPGND = 0 V;
OPT1 S/PDIF input source; PCM data Left-Justified format; 2 V
RMS
output; De-emphasis off; input test signal is a
997 Hz sine wave at 0 dBFS; dB values relative to 2.1 V
RMS
full-scale output; measurement bandwidth 10 Hz to
20 kHz. CDB4353 revision A3 with CS4353 revision B1 used.
-150
+0
-140
-130
-120
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-90
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d
B
r
A
20 20k50 100 200 500 1k 2k 5k 10k
Hz
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+0
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d
B
r
A
20 20k50 100 200 500 1k 2k 5k 10k
Hz
Figure 1. FFT (48 kHz, 0 dB) Figure 2. FFT (48 kHz, -60 dB)
-150
+0
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d
B
r
A
20 20k50 100 200 500 1k 2k 5k 10k
Hz
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+0
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d
B
r
A
20k 120k40k 60k 80k 100k
Hz
Figure 3. FFT (48 kHz, No Input) Figure 4. FFT (48 kHz Out-of-Band, No Input)
-110
+0
-100
-90
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-50
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-10
d
B
r
A
20 20k50 100 200 500 1k 2k 5k 10k
Hz
-110
+0
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-90
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-10
d
B
r
A
-120 +0-100 -80 -60 -40 -20
dBFS
Figure 5. 48 kHz, THD+N vs. Input Freq Figure 6. 48 kHz, THD+N vs. Level