PCM3793A
PCM3794A
www.ti.com
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
TYPICAL PERFORMANCE CURVES (continued)
All specifications at TA = 25°C, VDD = VIO = VCC = VPA = 3.3 V, fS = 48 kHz, system clock = 256 fS, and 16-bit data, unless
otherwise noted.
THD+N/SNR vs POWER SUPPLY
DAC TO LINE OUTPUT, 10-kΩ
THD+N/SNR vs POWER SUPPLY
ADC TO DIGITAL OUTPUT
0.012
0.011
0.010
0.009
0.008
0.007
95
94
93
92
91
90
0.012
0.011
0.010
0.009
0.008
0.007
92
91
90
89
88
87
fIN = 1 kHz
fIN = 1 kHz
THD+N
SNR
THD+N
SNR
2
2.5
3
3.5
4
2
2.5
3
3.5
4
Power Supply – V
Power Supply – V
G015
G016
Figure 16.
Figure 17.
OUTPUT POWER vs POWER SUPPLY
OUTPUT POWER vs POWER SUPPLY
(HEADPHONE, 16-Ω)
(SPEAKER, 8-Ω)
120
900
fIN = 1 kHz
fIN = 1 kHz
800
700
600
500
400
300
200
100
0
100
80
60
40
20
0
Vol = +6 dB
Vol = 6 dB
Vol = 0 dB
Vol = 0 dB
2
3.5
4
2.5
3
2
2.5
3
3.5
4
Power Supply – V
Power Supply – V
G017
G018
Figure 18.
Figure 19.
14
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