Knowles SPH0641LU4H-1 SMD Microphone

The SPH0641LU4H-1 is a miniature, high performance, low power, bottom port silicon digital microphone with a single bit PDM output. Using Knowles’ proven high performance SiSonicTM MEMS technology, the SPH0641LU4H-1 consists of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator. It allows the microphone to assist smartphones and consumer electronics with touch-less gesture recognition, phone-to-phone data transmission, pen input compatibility for handsets and tablets, and 3D positioning input.

SMD Microphone Application:

1. Cellphone
2. Smart phones
3. Laptop computers
4. Sensors
5. Digital still cameras
6. Portable music recorders
7. Portable electronic devices

Knowles Microphone Specification:

1. High SNR of 64.3dB
2. Frequency Range: 100Hz ~ 80kHz
3. Sensitivity : -26dB ±1dB
4. Voltage Range: 1,62V ~ 3,6V
5. Current – Supply: 1mA
6. Low Current Consumption of 235uA in Low-Power Mode
7. Multiple performance modes (Sleep, Low-Power, Standard Performance and Ultrasonic Modes)
8. Supports Dual Multiplexed Channels
9. Omnidirectional
10. Ultrasonic Support
11. Sensitivity Matching
12. Small Size
13. Standard SMD Reflow
14. LGA Package