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PCM1840 Datasheet(PDF) 29 Page - Texas Instruments

Part # PCM1840
Description  PCM1840 Quad Channel, 32-Bit, 192-kHz, Burr-BrownTM Audio ADC
PDF  41 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

PCM1840 Datasheet(HTML) 29 Page - Texas Instruments

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Frequency (Hz)
20
50
100
500
1000
5000
10000
20000
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
D212
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Channel-3 : DRE disabled
Channel-4 : DRE disabled
Input Amplitude (dB)
-130
-115
-100
-85
-70
-55
-40
-25
-10
0
-130
-120
-110
-100
-90
-80
-70
-60
THD+
D202
Channel-1 : DRE disabled
Channel-2 : DRE disabled
Channel-3 : DRE disabled
Channel-4 : DRE disabled
Frequency (Hz)
20
50
100
500
1000
5000
10000
20000
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
D212
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Channel-3 : DRE enabled
Channel-4 : DRE enabled
Input Amplitude (dB)
-130
-115
-100
-85
-70
-55
-40
-25
-10
0
-130
-120
-110
-100
-90
-80
-70
-60
THD+
D202
Channel-1 : DRE enabled
Channel-2 : DRE enabled
Channel-3 : DRE enabled
Channel-4 : DRE enabled
29
PCM1840
www.ti.com
SBAS989 – APRIL 2019
Product Folder Links: PCM1840
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
8.2.3 Application Curves
Measurements are done on the EVM by feeding the device analog input signal using audio precision and with a
3.3-V AVDD supply.
Figure 49. FFT With a –60-dBr Input With DRE Enabled
Figure 50. THD+N vs Input Amplitude With DRE Enabled
Figure 51. FFT With a –60-dBr Input With DRE Disabled
Figure 52. THD+N vs Input Amplitude With DRE Disabled



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