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PCM1820 Datasheet(PDF) 16 Page - Texas Instruments

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Part # PCM1820
Description  TLV320ADC6120 2-Channel, 768-kHz, Burr-BrownTM Audio ADC
PDF  130 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCM1820 Datasheet(HTML) 16 Page - Texas Instruments

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7.13 Typical Characteristics (continued)
at TA = 25°C, AVDD = 3.3 V, IOVDD = 3.3 V, fIN = 1-kHz sinusoidal signal, fS = 48 kHz, 32-bit audio data, BCLK = 256 ×
fS, TDM slave mode, PLL on, DRE_LVL = –36 dB, channel gain = 0 dB, and linear phase decimation filter (unless otherwise
noted); all performance measurements are done with a 20-kHz, low-pass filter, and an A-weighted filter
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-130
-120
-110
-100
-90
-80
-70
-60
D007
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-10. THD+N vs Input Frequency at –60-dBr Input With
DRE Enabled
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-130
-120
-110
-100
-90
-80
-70
-60
D008
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-11. THD+N vs Input Frequency at –60-dBr Input With
DRE Disabled
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-130
-120
-110
-100
-90
-80
-70
-60
D009
Channel-1
Channel-2
Figure 7-12. THD+N vs Input Frequency at –1-dBr Input With
DRE Disabled
Channel Gain (dB)
0
4
8
12
16
20
24
28
32
36
40
44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
THD+
D010
Channel-1
Channel-2
Differential input
Figure 7-13. Input-Referred Noise vs Channel Gain
Channel Gain (dB)
0
4
8
12
16
20
24
28
32
36
40
44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
THD+
D011
Channel-1
Channel-2
Single-ended input
Figure 7-14. Input-Referred Noise vs Channel Gain
Frequency (Hz)
20 30
50 70 100
200300 500 1000 2000
5000 10000 20000
100000
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
Freq
D012
Channel-1
Channel-2
Figure 7-15. Frequency Response With a –12-dBr Input
TLV320ADC6120
SBASA92A – DECEMBER 2020 – REVISED JUNE 2021
www.ti.com
16
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: TLV320ADC6120



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