Knowles KAS-700-0154 2-Pack Bottom Port Mics on Flex

Knowles KAS-700-0154 2-Pack Bottom Port Mics on Flex feature an SPW0878LR5H-1 ELLEN bottom port differential analog microphone and a 0402 bypass capacitor mounted on a KC10289 flex circuit PCB. The KAS-700-0154 is intended for use with the Knowles “Muskie” microphone evaluation kit. A large dynamic range enables improved barge-in performance and resilience to wind noise turbulence. Other features include a 65dB signal-to-noise (SNR) ratio, tight phase tolerance, low LFRO (15Hz), and a 1% THD at 131dB SPL. This device is suitable for multiple applications in the electronic and consumer Internet of Things (IoT) markets.

Features

  • Bottom port location
  • Analog interface
  • Tight phase tolerance, low LFRO (15Hz)
  • Bottom port analog microphone (Part# SPW0878LR5H-1) mounted to a flexible bias board
  • 65dB signal-to-noise ratio (SNR)
  • 1% THD at 131dB SPL and a large dynamic range enables improved barge-in performance and resilience to wind noise turbulence
  • For use with Knowles “Muskie” Microphone Evaluation Kit (Part# KAS-33100-0004)

Specifications

  • LPM Specifications
    • 1.5V to 1.9V supply voltage range
    • 75µA current consumption at 1.8V
    • 63/64.5dB(A) signal-to-noise ratio (Diff/SE)
    • 128dB SPL at 1% THD/132dB SPL at 10% THD
  • SPM Specification
    • 2.3V to 3.6V supply voltage range
    • 220µA current consumption at 2.75V
    • 65/65dB(A) signal-to-noise ratio (Diff/SE)
    • 131dB SPL at 1% THD/134dB SPL at 10% THD
  • 3.10mm x 2.50mm x 1.00mm in dimension (LxWxH)
  • 380Ω output impedance
  • 15Hz LFRO (-3dB)
  • 45kHz resonant frequency

Components

  • SPW0878LR5H-1 bottom port analog microphone
  • 0402 bypass capacitor, 0.1µF, 0.1F±10% 16V, X5R
  • KC10289 flex circuit PCB

Knowles KAS-700-0154 2-Pack Bottom Port Mics on Flex