ADPD4100 datasheet(94/101 Pages) AD

94 / 101 page

ADPD4100/ADPD4101

Data Sheet

Rev. 0 | Page 94 of 101

AFE TIMING SETUP REGISTERS

Table 37. AFE Timing Setup Register Details

Addr

Name

Bits

Bit Name

Description

Reset Access

0x0107 COUNTS_A

[15:8]

NUM_INT_x

Number of ADC cycles or acquisition width. Number of analog

integration cycles per ADC conversion or the acquisition width

for digital integration and impulse mode. A setting of 0 is not

allowed.

0x1

R/W

0x0127 COUNTS_B

0x0147 COUNTS_C

0x0167 COUNTS_D

0x0187 COUNTS_E

[7:0]

NUM_REPEAT_x

Number of sequence repeats. Total number of pulses =

NUM_INT_x × NUM_REPEAT_x. A setting of 0 is not allowed.

0x1

R/W

0x01A7 COUNTS_F

0x01C7 COUNTS_G

0x01E7 COUNTS_H

0x0207 COUNTS_I

0x0227 COUNTS_J

0x0247 COUNTS_K

0x0267 COUNTS_L

0x0108 PERIOD_A

[15:14] Reserved

Reserved.

0x0

0x0128 PERIOD_B

[13:12] MOD_TYPE_x

Modulation connection type.

0x0

R/W

0x0148 PERIOD_C

00: TIA is continuously connected to input after precondition.

No connection modulation.

0x0168 PERIOD_D

0x0188 PERIOD_E

01: float type operation. Pulse connection from input to TIA

with modulation pulse, floating between pulses.

0x01A8 PERIOD_F

0x01C8 PERIOD_G

10: nonfloat type connection modulation. Pulse connection

from input to TIA. Connect to precondition value between

pulses.

0x01E8 PERIOD_H

0x0208 PERIOD_I

0x0228 PERIOD_J

[11:10] Reserved

Reserved.

0x0

0x0248 PERIOD_K

[9:0]

MIN_PERIOD_x

Minimum period for pulse repetition in μs. Override for the

automatically calculated period. Used in float type operations

to set the float time of second and subsequent floats using the

formula: Float Time = MIN_PERIOD_x − MOD_WIDTH_x.

0x0

R/W

0x0268 PERIOD_L

0x010A INTEG_SETUP_A 15

SINGLE_INTEG_x

Use single integrator pulse.

0x0

R/W

0x012A INTEG_SETUP_B

0: use both generated integrator clocks.

0x014A INTEG_SETUP_C

1: skip the second integrator clock.

0x016A INTEG_SETUP_D [14:12] CH2_AMP_DISABLE_x Amplifier disables for power control. Set the appropriate bit to

0x0

R/W

0x018A INTEG_SETUP_E

disable the Channel 2 amplifier in Time Slot x.

0x01AA INTEG_SETUP_F

0: TIA.

0x01CA INTEG_SETUP_G

1: BPF.

0x01EA INTEG_SETUP_H

2: integrator.

0x020A INTEG_SETUP_I

AFE_INT_C_BUF_x

Set to 1 to configure the integrator as a buffer in Time Slot x.

0x0

R/W

0x022A INTEG_SETUP_J [10:8]

CH1_AMP_DISABLE_x Amplifier disables for power control. Set the appropriate bit to

disable the Channel 1 amplifier in Time Slot x.

0x0

R/W

0x024A INTEG_SETUP_K

0x026A INTEG_SETUP_L

0: TIA.

1: BPF.

2: integrator.

[7:6]

ADC_COUNT_x

ADC conversions per pulse. Number of conversions =

ADC_COUNT + 1.

0x0

R/W

Reserved

Reserved.

0x0

[4:0]

INTEG_WIDTH_A

Integrator clock width in μs. Must be >0.

0x3

R/W

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