ADPD4100 datasheet(92/101 Pages) AD

92 / 101 page

ADPD4100/ADPD4101

Data Sheet

Rev. 0 | Page 92 of 101

Addr

Name

Bits

Bit Name

Description

Reset Access

0x0104 AFE_TRIM_A

TIA_CEIL_DETECT_

Set to 1 to enable TIA ceiling detection circuitry. Enables

Channel 1 TIA ceiling detection circuitry and Channel 2

TIA ceiling detection circuitry if Channel 2 is also enabled.

0x0

R/W

0x0124 AFE_TRIM_B

EN_x

0x0144 AFE_TRIM_C

0x0164 AFE_TRIM_D

[14:13] CH2_TRIM_INT_x

Set the integrator input resistor when AFE_INT_C_BUF_x = 0. 0x0

R/W

0x0184 AFE_TRIM_E

Set the buffer gain when AFE_INT_C_BUF_x = 1

0x01A4 AFE_TRIM_F

AFE_INT_C_BUF_x = 0

AFE_INT_C_BUF_x = 1

0x01C4 AFE_TRIM_G

00: 400 kΩ.

00: gain = 1.

0x01E4 AFE_TRIM_H

01: 200 kΩ.

01: gain = 1.

0x0204 AFE_TRIM_I

10: 100 kΩ.

10: gain = 0.7.

0x0224 AFE_TRIM_J

11: 100 kΩ.

11: gain = 0.7.

0x0244 AFE_TRIM_K

[12:11] CH1_TRIM_INT_x

Set the integrator input resistor when AFE_INT_C_BUF_x = 0. 0x0

R/W

0x0264 AFE_TRIM_L

Set the buffer gain when AFE_INT_C_BUF_x = 1 or in

digital integration mode.

AFE_INT_C_BUF_x = 0

AFE_INT_C_BUF_x = 1

00: 400 kΩ.

00: gain = 1.

01: 200 kΩ.

01: gain = 1.

10: 100 kΩ.

10: gain = 0.7.

11: 100 kΩ.

11: gain = 0.7.

VREF_PULSE_x

TIA_VREF pulse control.

0x0

R/W

0: no pulsing.

1: pulse TIA_VREF based on modulation pulse.

[9:8]

AFE_TRIM_VREF_x

Voltage select for TIA_VREF.

0x3

R/W

00: TIA_VREF = 1.1385 V.

01: TIA_VREF = 1.012 V.

10: TIA_VREF = 0.8855 V.

11: TIA_VREF = 1.265 V.

[7:6]

VREF_PULSE_VAL_x

TIA_VREF pulse alternate value.

0x3

R/W

00: modulate TIA_VREF = 1.1385 V.

01: modulate TIA_VREF = 1.012 V.

10: modulate TIA_VREF = 0.8855 V.

11: modulate TIA_VREF = 1.265 V.

[5:3]

TIA_GAIN_CH2_x

TIA resistor gain setting for Channel 2.

0x0

R/W

000: 200 kΩ.

001: 100 kΩ.

010: 50 kΩ.

011: 25 kΩ.

100: 12.5 kΩ.

[2:0]

TIA_GAIN_CH1_x

TIA resistor gain setting for Channel 1.

0x0

R/W

000: 200 kΩ.

001: 100 kΩ.

010: 50 kΩ.

011: 25 kΩ.

100: 12.5 kΩ.

0x010D PATTERN_A

[15:12] LED_DISABLE_x

Four-pulse LED disable pattern. Set to 1 to disable the LED

pulse in the matching position in a group of four pulses.

The LSB maps to the first pulse.

0x0

R/W

0x012D PATTERN_B

0x014D PATTERN_C

0x016D PATTERN_D

[11:8]

MOD_DISABLE_x

Four-pulse modulation disable pattern. Set to 1 to disable

the modulation pulse in the matching position in a group

of four pulses. The LSB maps to the first pulse.

0x0

R/W

0x018D PATTERN_E

0x01AD PATTERN_F

0x01CD PATTERN_G

[7:4]

SUBTRACT_x

Four-pulse subtract pattern. Set to 1 to negate the math

operation in the matching position in a group of four

pulses. The LSB maps to the first pulse.

0x0

R/W

0x01ED PATTERN_H

0x020D PATTERN_I

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