HBM2X1M Datasheet, PDF (17/18 Pages) HANAMICRON – Bluetooth V1.2 Class 2 Module

HBM2X1M
Bluetooth V1.2 Class 2 Module
Data Book
3.7.1 PCM Configuration
The PCM configuration is set using two PS keys, PSKEY_PCM_CONFIG32 and
PSKEY_PCM_LOW_JITTER_CONFIG. The default for long frame sync and interface master generating
256KHz PCM_CLK with no tristating of PCM_OUT.
Parameter
Mode
Clock Rate
Sync Formats
Data Formats
Possible value
Slave, Master
Master Mode : 128, 256, 512KHz
Slave Mode : up to 2048KHz
Long frame sync, Short frame sync
13 or 16bit linear, 8 - bit A - law to u - law
3.8 Microphone Input
The audio-input is intended for use from 1μA@94dB SPL to about 10μA@94dB
SPL. With biasing-resistors R1 and R2 equal to 1kΩ, this requires microphones
with sensitivity between about - 40dBV and - 60dBV.
Microphone Bias
R2
C1
C3
R1
C4
C2
+ ^MIC1
BlueCore3-Multimedia External
AUDIO_IN_P_LEFT
AUDIO_IN_N_LEFT
Microphone Biasing (Left Channel Shown)
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