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PCM1820 Datasheet(PDF) 11 Page - Texas Instruments

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Part # PCM1820
Description  PCM182x Stereo Channel, 32-Bit, 192-kHz, Burr-BrownTM Audio ADC
PDF  41 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCM1820 Datasheet(HTML) 11 Page - Texas Instruments

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7.8 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
Input Amplitude (dB)
-130
-115
-100
-85
-70
-55
-40
-25
-10
0
-130
-120
-110
-100
-90
-80
-70
-60
THD+
D001
Channel-1
Channel-2
Figure 7-13. PCM1821: THD+N vs Input Amplitude
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-130
-120
-110
-100
-90
-80
-70
-60
D002
Channel-1
Channel-2
Figure 7-14. PCM1821: THD+N vs Input Frequency
With a –60-dBr Input
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-130
-120
-110
-100
-90
-80
-70
-60
D003
Channel-1
Channel-2
Figure 7-15. PCM1821: THD+N vs Input Frequency
With a –1-dBr Input
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
D004
Channel-1
Channel-2
Figure 7-16. PCM1821: Frequency Response
With a –12-dBr Input
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-130
-120
-110
-100
-90
-80
-70
-60
D005
Channel-1
Channel-2
Figure 7-17. PCM1821: Power-Supply Rejection Ratio vs
Ripple Frequency With a 100-mVPP Amplitude
Frequency (Hz)
20
30 4050 70 100
200 300
500
1000
2000
5000
10000
20000
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
D006
Channel-1
Channel-2
Figure 7-18. PCM1821: FFT With Idle Input
www.ti.com
PCM1820, PCM1821
SBASA61A – DECEMBER 2020 – REVISED JUNE 2021
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: PCM1820 PCM1821



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