S-VM2020-C

VM2020 Coupon PCB User Guide Vesper PCB Rev 1.0 By Shin Nagpal User Gide General Description This document describes the C-VM2020 Coupon PCB evaluation board. The coupon PCB provides a quick and simple way of evaluating the differential analog output VM2020 microphone. The board consists of a VM2020 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. VM2020 Coupon PCB (Edge Connector recommendation is provided below) Vesper Technologies Inc. 77 Summer St, 8th floor Boston, MA - 02110 Rev 1.0 FEB2019 Vesper VM2020 Coupon PCB User Guide Board Pin # Name Description 1 Gnd Ground 2 Vout - Analog Output - 3 Vout + Analog Output + 4 Gnd Ground 5 Vdd Power Supply 2.25V to 3.6V DC Table 1: Pin Configuration Edge Connector VM2020 Coupon PCB can be used with an Edge connector from CW Industries with part number CWR-170-10-0000. Supply range for Vdd is 2.25V – 3.6V Figure 2: Connections on VM2020 Coupon PCB and Edge Connector CWR-170-10-0000 2 Vesper Technologies Inc. 77 Summer St, 8th floor Boston, MA - 02110 Rev1.0 FEB2019 Vesper VM2020 Coupon PCB User Guide Schematic The schematic of the board is shown in Figure 2. The S-VM2020-C Coupon pcb consists of the VM2020 microphone and the 0.1uF power supply bypass capacitor. Figure 3: S-VM2020-C Coupon PCB Schematic 3 Vesper Technologies Inc. 77 Summer St, 8th floor Boston, MA - 02110 Rev1.0 FEB2019 Vesper VM2020 Coupon PCB User Guide Figure 4: S-VM2020-C Coupon PCB board layout Other Information The detailed specifications and description of the VM2020 microphone can be found in the product datasheet. For convenience the basic parameters and absolute maximum ratings also shown in Table 2 and Table 3 below: 4 Vesper Technologies Inc. 77 Summer St, 8th floor Boston, MA - 02110 Rev1.0 FEB2019 Vesper VM2020 Coupon PCB User Guide Parameter Typical Units Value Supply Voltage 2.6 V Idd 248 μA -63.0 dBV 0.71 mVrms 1400 Ω 0.8 V Sensitivity @ 94dB SPL Output Impedance, Vout+, VoutOutput DC Offset, Vout+, Vout - Table 2. Typical parameters for microphone operation Parameter Rating Units Supply Voltage -0.3 to +3.6 V Sound Pressure Level 180 dB re 20 μPa Operating Temperature Range -40 to +85 °C Storage Temperature Range -55 to +150 °C Mechanical Shock 10,000g per IEC 60028-2-27:2008 Vibration Per MIL-STD 883E, 2007.2 Table 3. Absolute Maximum Ratings For additional information on Vesper products, contact info@vespermems.com. 5 Vesper Technologies Inc. 77 Summer St, 8th floor Boston, MA - 02110 Rev1.0 FEB2019