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PCM1822 Datasheet(PDF) 11 Page - Texas Instruments

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Part # PCM1822
Description  PCM1822 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

PCM1822 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+
Channel-1 : DRE Disabled
Channel-2 : DRE Disabled
Figure 7-13. Single-Ended Input: THD+N vs Input Amplitude
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
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-14. Single-ended Input: DR vs Input Frequency
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
Channel-1 : DRE Disabled
Channel-2 : DRE Disabled
Figure 7-15. Single-Ended Input: DR vs Input Frequency
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
Channel-1
Channel-2
Figure 7-16. Single-Ended Input: THD+N vs Input Frequency
With a –1-dBr Input
Frequency (Hz)
20 30 50 70100
200300 500 1000 2000
5000 1000020000
100000
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
Freq
Channel-1
Channel-2
Figure 7-17. Single-ended Input: Frequency Response
With a –12-dBr Input
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
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-18. Single-ended Input: FFT With Idle Input and DRE
Enabled
www.ti.com
PCM1822
SBASAK0 – DECEMBER 2020 – REVISED MAY 2022
Copyright © 2022 Texas Instruments Incorporated
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Product Folder Links: PCM1822



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