Datasheet

TYPICAL CHARACTERISTICS: ANALOG DYNAMIC PERFORMANCE
Temperature Characteristics
0.01
0.001
0.0001
TotalHarmonicDistortion+Noise(%)
Free-AirTemperature( C)°
-50 0
100
-25 25
50 75
f =48kHz
S
f =192kHz
S
f =96kHz
S
126
124
122
120
118
116
DynamicRange(dB)
Free-AirTemperature( C)°
-50 0
100
-25 25
50 75
f =48kHz
S
f =192kHz
S
f =96kHz
S
126
124
122
120
118
116
Signal-to-NoiseRatio(dB)
Free-AirTemperature( C)°
-50 0
100
-25 25
50 75
f =48kHz
S
f =192kHz
S
f =96kHz
S
122
120
118
116
114
112
ChannelSeparation(dB)
Free-AirTemperature( C)°
-50 0
100
-25 25
50 75
f =48kHz
S
f =192kHz
S
f =96kHz
S
0
20
40
60
80
100
120
140
160
-
-
-
-
-
-
-
-
Amplitude(dB)
Frequency(kHz)
0 4
20
2 6
-60-dBOutputSpectrum
BW=20kHz
PCMMode
f =48kHz
32768Point8Average
T =+25 C
V =3.3V
V =5V
S
A
DD
CC
°
8 10 12 14 16 18
0
20
40
60
80
100
120
140
160
-
-
-
-
-
-
-
-
Amplitude(dB)
Frequency(kHz)
0 20
100
10 30
-60-dBOutputSpectrum
BW=100kHz
PCMMode
f =96kHz
32768Point8Average
T =+25 C
V =3.3V
V =5V
S
A
DD
CC
°
40 50 60 70 80 90
PCM1795
www.ti.com ........................................................................................................................................................................................................ SLES248 – MAY 2009
PCM mode, V
DD
= 3.3 V, and V
CC
= 5 V; measured with circuit shown in Figure 52 , unless otherwise noted.
THD+N vs FREE-AIR TEMPERATURE DYNAMIC RANGE vs FREE-AIR TEMPERATURE
Figure 16. Figure 17.
SNR vs FREE-AIR TEMPERATURE CHANNEL SEPARATION vs FREE-AIR TEMPERATURE
Figure 18. Figure 19.
AMPLITUDE vs FREQUENCY AMPLITUDE vs FREQUENCY
(Measurement Circuit: Figure 52 ) (Measurement Circuit: Figure 52 )
Figure 20. Figure 21.
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