The B39931B4062U810 is a Surface Acoustic Wave (SAW) filter manufactured by Qualcomm. SAW filters are electronic components used to selectively filter signals within a specific frequency range. They are commonly used in radio frequency (RF) applications, such as mobile communication devices, to isolate desired signals and reject unwanted interference. This particular filter is designed for use in specific wireless communication bands.

Applications

• Mobile Phones: Used to filter signals in cellular communication bands, such as GSM, CDMA, WCDMA, and LTE.
• Wireless Communication Devices: Employed in Wi-Fi routers, Bluetooth devices, and other wireless communication equipment.
• RF Transceivers: Integrated into RF transceivers to improve signal quality and reduce interference.
• Base Stations: Used in cellular base stations to filter uplink and downlink signals.
• Satellite Communication Systems: Found in satellite receivers and transmitters to filter specific frequency bands.

Features

• High Selectivity: Provides sharp cutoff characteristics, allowing for precise filtering of signals.
• Low Insertion Loss: Minimizes signal attenuation within the passband.
• Surface Mount Package: Enables automated assembly and reduces board space.
• Small Size: Compact design allows for integration into small devices.
• High Reliability: Designed for stable performance over a wide temperature range.

Benefits

• Improved Signal Quality: Filters out unwanted noise and interference, resulting in clearer and more reliable communication.
• Enhanced Performance: Low insertion loss maximizes signal strength and improves overall system performance.
• Reduced Size and Weight: Compact design allows for smaller and lighter devices.
• Simplified Manufacturing: Surface mount package simplifies assembly and reduces manufacturing costs.

Additional Details

The B39931B4062U810 SAW filter is typically characterized by its center frequency, bandwidth, insertion loss, and rejection characteristics. These parameters are critical for ensuring proper operation in the intended application. The filter is manufactured using advanced microfabrication techniques to achieve precise control over its frequency response. Detailed specifications, including the filter's impedance and temperature stability, can be found in the manufacturer's datasheet.