AD5941BCPZ datasheet(58/143 Pages) AD

58 / 143 page

Data Sheet

AD5940/AD5941

HIGH PERFORMANCE ADC CIRCUIT

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Rev. D | 58 of 143

Figure 34. Postprocessing Filter Options

ADC CIRCUIT REGISTERS

Table 42. ADC Control Registers Summary

Address

Name

Description

Reset

Access

0x00002044

ADCFILTERCON

ADC output filters configuration register

0x00000301

R/W

0x00002074

ADCDAT

ADC raw result register

0x00000000

R/W

0x00002078

DFTREAL

DFT result, real device register

0x00000000

R/W

0x0000207C

DFTIMAG

DFT result, imaginary device register

0x00000000

R/W

0x00002080

SINC2DAT

Sinc2 filter result register

0x00000000

R/W

0x00002084

TEMPSENSDAT

Temperature sensor result register

0x00000000

R/W

0x000020D0

DFTCON

DFT configuration register

0x00000090

R/W

0x00002174

TEMPSENS

Temperature sensor configuration register

0x00000000

R/W

0x000021A8

ADCCON

ADC configuration register

0x00000000

R/W

0x000021F0

REPEATADCCNV

Repeat ADC conversion control register

0x00000160

R/W

0x0000238C

ADCBUFCON

ADC buffer configuration register

0x005F3D00

R/W

ADC Output Filters Configuration Register—ADCFILTERCON

Address 0x00002044, Reset: 0x00000301, Name: ADCFILTERCON

Table 43. Bit Descriptions for ADCFILTERCON Register

Bits

Bit Name

Settings

Description

Reset

Access

[31:19]

Reserved

Reserved.

0x0

DFTCLKENB

DFT clock enable.

0x0

0 Enable.

1 Disable.

DACWAVECLKENB

DAC wave clock enable.

0x0

0 Enable.

1 Disable.

SINC2CLKENB

Sinc2 filter clock enable.

0x0

0 Enable.

1 Disable.

[15:14]

AVRGNUM

These bits set the number of samples used by the averaging function. The average output

is fed directly to the DFT block and the DFT source is automatically changed to the average

output. The AVRGEN bit must be set to 1 to use these bits.

0x0

R/W

0 2 ADC samples used for the average function.

1 4 ADC samples used for the average function.

AD5941BCPZ Datasheet(PDF) 58 Page - Analog Devices

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