GA38-30870-000

Description：MIC COND ANALOG UNI -53DB
Series：GA
Mfr：Knowles
Package：Tray

SKU:e2c78eabf4ba Category: Microphones Brand: Knowles

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Product introduction

GA38-30870-000 is listed in the Microphones range at ChipApex. The manufacturer field lists Knowles. Its product description is MIC COND ANALOG UNI -53DB. Review the specifications below when checking this part for your BOM.

Microphones specifications for GA38-30870-000

Description：MIC COND ANALOG UNI -53DB
Series：GA
Mfr：Knowles
Package：Tray
Type：Electret Condenser
Output Type：Analog
Direction：Unidirectional
Frequency Range：-
Sensitivity：-53dB ±3dB @ 74dB SPL
S/N Ratio：-
Impedance：4.4 kOhms
Voltage Range：1.3 V ~ 1.6 V
Current - Supply：29 µA
Port Location：Top
Ratings：-
Termination：-
Size / Dimension：-
Height (Max)：-
Shape：-
Grade：-
Qualification：-
Voltage - Rated：900 mV

Microphones datasheet and documents for GA38-30870-000

GA38-30870-000

Microphones Overview

The GA38-30870-000 is an analog electret condenser microphone manufactured by Knowles. It features a supercardioid directivity pattern and operates within a supply voltage range of 1.3 V to 1.6 V. The device has an impedance of 250 ohms and provides a sensitivity of -53dB ±3dB at 74dB SPL, with a specified output level of 2 mV/Pa.

Microphones Feature Summary

Supercardioid directional pickup pattern for focused sound capture
Analog output type suitable for standard audio processing circuits
Low voltage operation compatible with portable electronic devices

Microphones Applications

Voice recognition systems
Consumer audio recording equipment
Communication devices requiring unidirectional sound input

Microphones Procurement Notes

Verify the specific revision or suffix of the part number against the manufacturer's latest documentation to ensure compatibility with current production standards. Confirm that the required operating voltage range aligns with your system design before procurement. Check for any RoHS compliance declarations relevant to your region's regulatory requirements.

Microphones Selection Notes

Select this component when a supercardioid polar pattern is necessary to reject off-axis noise. Ensure the host circuit can provide the specified 1.3 V to 1.6 V bias voltage. Consider the 250 ohm impedance when designing matching amplifier stages for optimal signal-to-noise ratio.

Microphones Part Context

This model belongs to Knowles' portfolio of precision acoustic components. It is designed for applications requiring high-fidelity analog audio capture in a compact form factor. The supercardioid characteristic distinguishes it from omnidirectional variants, offering improved directionality for voice-centric applications.

Microphones Replacement Considerations

Consult official substitution guides for equivalent supercardioid electret microphones with matching sensitivity and impedance specifications. Verify pinout compatibility and mechanical dimensions if replacing in an existing assembly.