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PG3/PG4 Gain – dB
SNR – dB
G009
40
50
60
70
85
90
100
0
5
1510 20
25 30
Single Input
Differential Input
f = 1 kHz
IN
PG3/PG4 Gain – dB
SNR – dB
G010
40
45
65
60
55
50
70
75
80
85
90
0
5
1510 20
25 30
Single Input
Differential Input
f = 1 kHz
IN
Power Supply – V
THD+N – %
SNR – dB
G011
0.007
0.008
0.009
0.010
0.011
0.012
87
88
89
90
91
92
2 2.5 3.53 4
f = 1 kHz
IN
THD+N
SNR
PCM1870
SLAS544A – MAY 2007 – REVISED SEPTEMBER 2007
TYPICAL PERFORMANCE CURVES (continued)
All specifications at T
A
= 25 ° C, V
DD
= V
IO
= V
CC
= V
PA
= 3.3 V, f
S
= 48 kHz, system clock = 256 f
S
and 16-bit data, unless
otherwise noted.
ADC SNR AT HIGH GAIN (PG1/PG2 = 0 dB) ADC SNR AT HIGH GAIN (PG1/PG2 = 20 dB)
Figure 10. Figure 11.
THD+N/SNR vs POWER SUPPLY
(ADC TO DIGITAL OUTPUT)
Figure 12.
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Product Folder Link(s): PCM1870