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HBM1X1M Datasheet(PDF) 15 Page - HANAMICRON |
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HBM1X1M Datasheet(HTML) 15 Page - HANAMICRON |
15 / 17 page ![]() HBM1X1M Bluetooth V1.2 Class 1 Module Data Book Support for stereo digital audio bus standards such as I2S Support for IEC-60958 standard stereo digital audio bus standards i.e. S/PDIF and AES3/EBU Support for PCM interfaces including PCM master CODECs that require an external system clock 3.7 PCM CODEC Interface Pulse Code Modulation (PCM) is a standard method used to digitize audio (particularly voice) patterns for transmission over digital communication channels. Through its PCM interface, this module has hardware support for continual transmission and reception of PCM data, so reducing processor overhead for wireless headset applications. This module offers a bi-directional digital audio interface that route directly into the baseband layer of the on-chip firmware. It dose not pass through the HCI protocol layer. Hardware allows the data to be sent to and received from a SCO connection This module interfaces directly to PCM audio devices including the following : - Qualcomm MSM 3000 series and MSM 5000 series CDMA baseband devices - OKI MSM7705 for channel A-law and u-law CODEC - Motorola MC145481 8-bit A-law and u-law CODEC - Motorola MC145483 13-bit linear CODEC - STW 5093 and 5094 14-bit linear CODECs 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 Possible value Mode Slave, Master Clock Rate Master Mode : 128, 256, 512KHz www.hanamciron.co.kr 15 page / 17 pages |
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