Datasheet > UG-335

UG-335

更新时间： 2024-09-24 12:27:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
2页	94K
描述
EVAL-ADMP521Z Bottom Port Digital Output MEMS Microphone Evaluation Board

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UG-335 数据手册

Evaluation Board User Guide

UG-335

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

EVAL-ADMP521Z Bottom Port Digital Output MEMS Microphone Evaluation Board

GENERAL DESCRIPTION

GND

The EVAL-ADMP521Z is a simple evaluation board that allows

quick evaluation of the performance of the ADMP521 bottom

port, digital output, omnidirectional microphone. The EVAL-

ADMP521Z has a dual-row, 12-pin, 0.1-inch spaced header for

access to all microphone pins. All signals are connected to the

row of pins along the edge of the board. The pins on the inner

row are not connected to any signals.

ADMP521

CLK

L/R SELECT

DATA

0.1µF

GND

L/R SELECT

DATA

The EVAL-ADMP521Z is designed to plug directly into either row

of Connector J6 on the Analog Devices, Inc., EVAL-ADAU1761Z

evaluation board. When these two boards are connected, the

EVAL-ADMP521Z board should extend off the left edge of the

EVAL-ADAU1761Z board. Circuit Note CN0078 fully describes

the connection between these two boards and the register

settings of the codec.

Figure 1. Schematic

The dimensions of the EVAL-ADMP521Z are 13 mm × 18 mm.

The evaluation board is RoHS-compliant part.

ANALOG

DEVICES

ADMP521

EVALUATION BOARD CIRCUIT

The schematic of the EVAL-ADMP521Z is shown in Figure 1.

See the ADMP521 data sheet for a complete description and

microphone specifications.

11 12

The PCB layout of the EVAL-ADMP521Z is shown in Figure 2.

The factory-installed 0.1 μF capacitor, C1, is a bypass capacitor

that reduces supply noise and ensures proper microphone

operation. The board is powered from a single 1.8 V to 3.3 V

supply on Pin 11 of the connector. The EVAL-ADMP521Z

connector pin functions are described in Table 1.

Figure 2. PCB Layout

Table 1. Connector Pin Functions of the EVAL-ADMP521Z

Pin No.

Description

GND

2, 4, 5, 6, 8, 10, 12

Not connected

CLK

L/R SELECT

DATA

V_DD

Figure 3. Evaluation Board Photograph

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 2

中文翻译

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