SP0103NC3-2

Description：MIC SISONIC SMD INT AMP 20DBGAIN
Series：-
Mfr：Knowles
Package：Cut Tape (CT)

SKU:30c89bd77012 Category: Microphones Brand: Knowles

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Product introduction

Product Detailed Parameters

Description：MIC SISONIC SMD INT AMP 20DBGAIN
Series：-
Mfr：Knowles
Package：Cut Tape (CT)
Type：-
Output Type：-
Direction：-
Frequency Range：-
Sensitivity：-
S/N Ratio：-
Impedance：-
Voltage Range：-
Current - Supply：-
Port Location：-
Ratings：-
Termination：-
Size / Dimension：-
Height (Max)：-
Shape：-
Grade：-
Qualification：-
Voltage - Rated：-

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SP0103NC3-2

Overview

The SP0103NC3-2 is a silicon MEMS microphone from the SiSonic series, designed for analog audio capture. It features an omnidirectional acoustic port located on the top surface. The device operates within a supply voltage range of 1.5 to 5.5V and draws a supply current of 350µA. Key electrical specifications include a sensitivity of -22dB ±4dB at 94dB SPL, a signal-to-noise ratio of 59dB, and an impedance of 100 Ohm. The frequency response spans from 100Hz to 10kHz. The component is housed in a rectangular surface-mount package measuring 6.15mm in length, 3.76mm in width, with a maximum height of 1.45mm.

Feature Summary

Omnidirectional sound pickup capability via top-port acoustic design
Integrated silicon MEMS transducer technology for compact form factor
Analog output interface suitable for direct connection to processing circuits

Applications

Voice recognition systems requiring low-power audio input
Consumer electronics utilizing surface-mount assembly constraints
General-purpose analog audio capture modules

Procurement Notes

Verify the specific revision and manufacturing date code against the latest Knowles datasheet to ensure compatibility with intended operating conditions. Confirm that the 1.5V minimum supply voltage aligns with the system power rail. Ensure the 350µA current draw fits within the total power budget of the application. Validate that the 100 Ohm impedance matches the input requirements of the downstream amplifier or ADC stage.

Selection Notes

Select this component when a small footprint and low power consumption are critical for the design. The SiSonic series offers a balance of size and performance for voice-centric applications. Consider the -22dB sensitivity and 59dB SNR for environments with moderate background noise. The wide supply voltage range provides flexibility in power domain selection. Ensure the top-port orientation is feasible within the final enclosure design.

Part Context

This part belongs to the SiSonic series of silicon microphones manufactured by Knowles. These components utilize MEMS technology to provide reliable acoustic sensing in a miniature surface-mount package. The series is engineered for integration into portable devices where space and power efficiency are primary design drivers.