1

MCE

8

VDD

2

AINP

7

CLKIN

3

AINN

6

DOUT

4

REFOUT

5

GND

Not to scale

3

AMC1035

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SBAS837B – AUGUST 2018 – REVISED APRIL 2020

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5 Pin Configuration and Functions

D Package

8-Pin SOIC

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NO.

NAME

1

MCE

I

Manchester coding enabled, active high, with internal pulldown resistor (typical value: 200 kΩ).

The polarity of this signal must not be changed when the clock signal is applied.

2

AINP

I

Noninverting analog input.

3

AINN

I

Inverting analog input.

4

REFOUT

O

Reference output: 2.5 V nominal, maximum ±5-mA sink and source capability.

5

GND

—

Ground reference.

6

DOUT

O

Modulator bitstream data output, updated with the rising edge of the clock signal present on CLKIN.

This pin is a Manchester coded output if MCE is pulled high. Use the rising edge of the clock to latch the

modulator bitstream at the input of the digital filter device.

7

CLKIN

I

Modulator clock input: 9 MHz to 21 MHz with an internal pulldown resistor (typical value: 200 kΩ).

The clock signal must be applied continuously for proper device operation; see the Clock Input section for

additional details.

8

VDD

—

Power supply, 3.0 V to 5.5 V.

See the Power Supply Recommendations section for decoupling recommendations.