MAX9924 Просмотр технического описания (PDF) - Maxim Integrated

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MAX9924

Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold

Maxim Integrated 

Variable Reluctance Sensor Interfaces with

Differential Input and Adaptive Peak Threshold

MAX9924

1

2

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3

PIN

MAX9925 MAX9926

1

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2

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3

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—

MAX9927

—

—

—

—

4

4

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5

5

11

11

6

6

13

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7

7

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8

8

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9

9

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—

10

10

14

14

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1

1

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—

2

2

—

—

3

3

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—

4

4

—

—

5

5

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6

6

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7

7

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8

8

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9

9

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10

10

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12

—

—

—

—

12

—

—

—

13

—

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15

15

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16

16

Pin Description

NAME

FUNCTION

IN+

IN-

OUT

N.C.

BIAS

GND

ZERO_EN

COUT

EXT

INT_THRS

VCC

INT_THRS1

EXT1

BIAS1

COUT1

COUT2

BIAS2

EXT2

INT_THRS2

IN2+

IN2-

DIRN

OUT2

OUT1

IN1-

IN1+

Noninverting Input

Inverting Input

Amplifier Output

No Connection. Not internally connected.

Input Bias. Connect to an external resistor-divider and bypass

to ground with a 0.1µF and 10µF capacitor.

Ground

Zero-Crossing Enable. Mode configuration pin, internally

pulled up to VCC with 10kΩ resistor.

Comparator Output. Open-drain output, connect a 10kΩ pullup

resistor from COUT to VPULLUP.

External Reference Input. Leave EXT unconnected in Modes

A1, A2. Apply an external voltage in Modes B, C.

Internal Adaptive Threshold. Mode configuration pin.

Power Supply

Internal Adaptive Threshold 1. Mode configuration pin.

External Reference Input 1. Leave EXT unconnected in Modes

A1, A2. Apply an external voltage in Modes B, C.

Input Bias 1. Connect to an external resistor-divider and

bypass to ground with a 0.1µF and 10µF capacitor.

Comparator Output 1. Open-drain output, connect a 10kΩ

pullup resistor from COUT1 to VPULLUP.

Comparator Output 2. Open-drain output, connect a 10kΩ

pullup resistor from COUT2 to VPULLUP.

Input Bias 2. Connect to an external resistor-divider and

bypass to ground with a 0.1µF and 10µF capacitor.

External Reference Input 2. Leave EXT unconnected in Modes

A1, A2. Apply an external voltage in Modes B, C.

Internal Adaptive Threshold 2. Mode configuration pin.

Noninverting Input 2

Inverting Input 2

Rotational Direction Output. Open-drain output, connect a

pullup resistor from DIRN to VPULLUP.

Amplifier Output 2

Amplifier Output 1

Noninverting Input 1

Inverting Input 1

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