Datasheet

®
4
PCM1725
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, +V
CC
= +5V, f
S
= 44.1kHz, SYSCLK = 256f
S
, unless otherwise noted.
DYNAMIC PERFORMANCE
THD+N vs TEMPERATURE
Temperature (°C)
THD+N at 0dB (%)
0.009
0.008
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0
–25 0 25 50 75 85 100
THD+N at –60dB (%)
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
–60dB
0dB
SNR, DYNAMIC RANGE vs TEMPERATURE
Temperature (°C)
SNR (dB)
99
98
97
96
95
94
93
99
98
97
96
95
94
93
–25 0 25 50 75 85 100
Dynamic Range (dB)
Dynamic Range
SNR
THD+N vs POWER SUPPLY
V
CC
(V)
THD+N at 0dB (%)
0.009
0.008
0.007
0.006
0.005
0.004
0.003
0.002
0.001
0
4.5 4.75 5.0 5.25 5.5
THD+N at –60dB (%)
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
2.3
–60dB
0dB
THD+N vs SAMPLING RATE
Sampling Rate (kHz)
THD+N at 0dB (%)
0.016
0.014
0.012
0.01
0.008
0.006
0.004
5.2
4.7
4.2
3.7
3.2
2.7
2.2
44.1 48 88.2 96
THD+N AT –60dB (%)
–60dB
0dB
SNR, DYNAMIC RANGE vs SAMPLING RATE
Sampling Rate (kHz)
SNR (dB)
98
97
96
95
94
93
92
91
90
89
88
98
97
96
95
94
93
92
91
90
89
88
44.1 48 88.2 96
Dynamic Range (dB)
Dynamic Range
SNR
SNR, DYNAMIC RANGE vs POWER SUPPLY
V
CC
(V)
SNR (dB)
99
98
97
96
95
94
93
99
98
97
96
95
94
93
4.5 4.75 5.0 5.25 5.5
Dynamic Range (dB)
Dynamic Range
SNR
Not Recommended For New Designs