Vesper S-VM3000-C Bedienungsanleitung

Rev 1.0

July2019

Vesper Technologies Inc.

77 Summer St, 8th floor

Boston, MA - 02110

VM3000 Coupon PCB

User Guide

Rev 1.0

By Shin Nagpal

General Description

This document describes the S-VM3000-C Coupon PCB evaluation board. The coupon PCB

provides a quick and simple way of evaluating the Pulse Density Modulation (PDM) digital

output microphone, VM3000. The board consists of a VM3000 bottom port MEMS

microphone and a 0.1uF power supply bypass capacitor along with an edge connector.

The user can simply use a corresponding female connector (CW Industries CWR-170-10-

0000) or solder wires to make good electrical contact to the power and output pins of the

microphone.

Pinout and Pin Descriptions

The board is shown in Figure 1 as follows and the corresponding pins in Table 1 have

been labeled:

Figure 1. VM3000 Coupon PCB

Rev 1.0

July2019

Vesper Technologies Inc.

77 Summer St, 8th floor

Boston, MA - 02110

VM3000 Coupon PCB

User Guide

Rev 1.0

By Shin Nagpal

Pin Name

Description

DATA

PDM Digital Output

L/R SELECT

Left/Right Channel Select (High=Left,

Low=Right)

CLK

Clock (2.4MHz typical)

VDD

Power Supply (1.6-3.6V)

GND

Ground

Table 1: Pinout Configuration

Edge Connector

VM3000 Coupon PCB can be used with an Edge connector from CW Industries with part

number CWR-170-10-0000 as shown in Figure 2. Supply range for Vdd is 1.6V –3.6V.

Figure 2: Connections on VM3000 Coupon PCB and Edge Connector CWR-170-10-0000

Vesper VM3000

Coupon PCB User Guide

Vesper Technologies Inc.

77 Summer St, 8th floor

Boston, MA - 02110

Rev1.0

July2019

Schematic

The schematic of the board and the PCB layout is shown in Figure 3 and Figure 4

respectively.

Figure 3. S-VM3000-C Coupon PCB Schematic

Figure 4. S-VM3000-C Coupon PCB Board Layout ( all dimensions in mm)

Vesper VM3000

Coupon PCB User Guide

Vesper Technologies Inc.

77 Summer St, 8th floor

Boston, MA - 02110

Rev1.0

July2019

Other Information

The detailed specifications and description of the VM3000 microphone can be found in

the product datasheet. For convenience the basic parameters and absolute maximum

ratings also shown in Table 2 and 3 below:

Parameter

Typical Value

Units

Supply Voltage

1.8

Sensitivity @ 94dB SPL

-26.0 +/- 1

doffs

Output DC Offset

0.05

dBFS

Supply current –sleep mode (VDD

On, CLK Off)

2.5

µA

Supply current –standby mode

(VDD On, CLK <250KHz)

115

µA

Supply current –Low Power mode

(CLK = 768 MHz)

400

µA

Supply current –Normal mode

(CLK = 2.4 MHz)

700

µA

Table 2. Typical parameters for microphone operation

Vesper VM3000

Coupon PCB User Guide

Vesper Technologies Inc.

77 Summer St, 8th floor

Boston, MA - 02110

Rev1.0

July2019

Parameter

Rating

Units

Supply Voltage

-0.3 to +3.6

Sound Pressure Level

160

dB re 20 μPa

Operating Temperature Range

-40 to +85

°C

Storage Temperature Range

-55 to +150

°C

Table 3. Absolute Maximum Ratings

For additional information on Vesper’s latest roadmap of microphone products, reach out

to [email protected].

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