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PCM1820 Datasheet(PDF) 17 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) 17 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
D013
Channel 1
Channel 2
Figure 7-16. Power-Supply Rejection Ratio vs Ripple Frequency
With 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
D014
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-17. FFT With Idle Input With 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
D015
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Figure 7-18. FFT With Idle Input With 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
D016
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Figure 7-19. FFT With a –60-dBr Input With 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
D017
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Figure 7-20. FFT With a –60-dBr Input With 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
D018
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Figure 7-21. FFT With a –1-dBr Input With DRE Disabled
www.ti.com
TLV320ADC6120
SBASA92A – DECEMBER 2020 – REVISED JUNE 2021
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: TLV320ADC6120



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