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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  40 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
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
Channel-2
Figure 7-7. PCM1820: 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
D008
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-8. PCM1820: FFT With Idle Input and DRE Enabled
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
D009
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Figure 7-9. PCM1820: FFT With Idle Input and DRE Disabled
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
D010
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-10. PCM1820: FFT With a –60-dBr Input and DRE
Enabled
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
D011
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Figure 7-11. PCM1820: FFT With a –60-dBr Input and DRE
Disabled
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
D012
Channel-1
Channel-2
Figure 7-12. PCM1820: FFT With a –1-dBr Input
www.ti.com
PCM1820, PCM1821
SBASA61 – DECEMBER 2020
Copyright © 2020 Texas Instruments Incorporated
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Product Folder Links: PCM1820 PCM1821



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