© 2004 California Micro Devices Corp. All rights reserved.

2

430 McCarthy Blvd., Milpitas, California 95035

LTel: (408) 263-3214 L

Fax: (408) 263-7846

L

www.calmicro.com

01/09/04

CMAMP110

Ordering Information

Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.

PIN DESCRIPTIONS

PIN

NAME

DESCRIPTION

1

MIC_SELECT

Microphone Select logic input control. The external microphone input is selected when

the MIC_SELECT signal (pin 1) is at Logic "1" (> 3.5 volts), and the internal microphone

inputs are selected by applying Logic "0" to the pin (< 1.5V).

Amplifier output pin.

3

EXT_MIC_BIAS

External microphone bias output.

4

V+

Positive supply pin.

5INT_MIC

−

Inverting internal microphone differential input. Can be operated as a single-ended input

by connecting a 0.22

6

INT_MIC+

Non-inverting internal microphone differential input. Can be operated as a single-ended

input by connecting a 0.22

7V

−

Negative supply pin.

8

EXT_MIC_IN

External microphone signal input.

PACKAGE / PINOUT DIAGRAM

Note: This drawing is not to scale.

8-pin MSOP

1

2

3

4

8

7

6

5

MIC_SELECT

EXT_MIC_BIAS

V

+

EXT_MIC_IN

V

−

INT_MIC

+

INT_MIC

−

Top View

PART NUMBERING INFORMATION

Pins

Package

Standard Finish

Lead-free Finish

Ordering Part

Part Marking

Ordering Part

Part Marking

8

MSOP-8

CMAMP110M

A110

CMAMP110MR

R110