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ADC3544 Datasheet(PDF) 42 Page - Texas Instruments

Part # ADC3544
Description  ADC354x 14-bit, 10-MSPS to 65-MSPS, Low-noise, Ultra-low Power ADC
PDF  86 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

ADC3544 Datasheet(HTML) 42 Page - Texas Instruments

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8.3.4.6 Output Formatting with Decimation
8.3.4.6.1 Parallel CMOS
In parallel CMOS mode, the ADC354x device supports complex decimation output with DDR CMOS interface
and real output with SDR and DDR CMOS interface as shown in Figure 8-36 (complex decimation) and Figure
8-37 (real decimation). In this illustration the output format is selected to 16-bit.
D16..1
DCLK
DCLK
Sample
NI
Sample
NQ
D16
(MSB)
D15
D3
D2
D1
Figure 8-36. Output Data Format in Complex Decimation (default bit mapper)
Table 8-4 illustrates the output interface data rate along with the corresponding DCLK frequency based on
complex decimation setting (N).
Furthermore the table shows an actual lane rate example with complex decimation by 4.
Table 8-4. Parallel CMOS Data Rate Examples with Complex Decimation
REAL/COMPLEX
DECIMATION
DECIMATION
SETTING
ADC SAMPLING RATE
DCLK
DOUT (MHz)
Complex
N
FS
FS x 2 / N
FS x 4 / N
4
65 MHz
32.5 MHz
65 MHz
ADC3541, ADC3542
SBAS840B – JULY 2020 – REVISED APRIL 2022
www.ti.com
42
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Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: ADC3541 ADC3542



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