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−100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0
Signal Level – dB
THD+N – Total Harmonic Distortion + Noise – %
100
1
0.1
0.01
0.001
10
G017
SUPPLY CURRENT PGA GAIN LINEARITY
0
5
10
15
20
25
30
16 36 56 76 96
I
CC
and I
DD
– Supply Current – mA
I
CC
f
SAMPLE
Condition – kHz
I
DD
G018
Gain Setting – dB
−11
−9
−7
−5
−3
−1
1
3
5
7
9
11
−11 −9 −7 −5 −3 −1 1 3 5 7 9 11
Overall Gain – dB
G019
PCM1850A
PCM1851A
SLES173 – MARCH 2006
TYPICAL PERFORMANCE CURVES AT PGA GAIN = –5.5 dB (continued)
All specifications at T
A
= 25 ° C, V
CC
= 5 V, V
DD
= 3.3 V, master mode, f
S
= 48 kHz, system clock = 256 f
S
, 24-bit data (unless
otherwise noted).
TOTAL HARMONIC DISTORTION + NOISE
vs
SIGNAL LEVEL
Figure 17.
SUPPLY CURRENT OVERALL GAIN
vs vs
f
SAMPLE
CONDITION GAIN SETTING
Figure 18. Figure 19.
13
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