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BM83 датащи(PDF) 17 Page - Microchip Technology

номер детали BM83
подробное описание детали  BM83 Bluetooth짰 Stereo Audio Module Data Sheet
PDF  74 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

BM83 датащи(HTML) 17 Page - Microchip Technology

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– One stereo single-ended line input
– One stereo single-ended line output
– One stereo single-ended headphone output (capacitor-less connection)
• Built-in circuit
– MIC bias
– Reference and biasing circuitry
• Optional digital High Pass Filter (HPF) on ADC path
• Silence detection
– To turn-off the DSP and audio codec subsystem, if there is no Line-In data after UI configured time stamp.
• Anti-pop function (pop reduction system to reduce audible glitches)
• Sampling rates:
– ADC/DAC/I2S: 8 kHz, 16 kHz, 44.1 kHz, and 48 kHz
Note:  The sampling rates can be selected in the CODEC Setup tab of Config Tool.
3.2.1
DAC Performance
The audio graphs in this section are produced in the following conditions:
• At room temperature
• Using BM83 EVB platform with BM83 module mounted on BM83 Carrier Board
• Input signal = 1KHz sine tone, level sweep across -100dBv to 6dBv, frequency sweep across 20Hz to 20KHz at
1Fs input level
• Various termination loads (16Ω, 32Ω, 100KΩ)
• Analog gain = -3dB; digital gain = 0dB
• A-weighting applied, 22K bandwidth.
The following figures illustrate the DAC performance.
BM83
Audio Subsystem
© 2019 Microchip Technology Inc.
Preliminary Datasheet
DS70005402A-page 17



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