Bluetooth Module

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ISO 9001 / QS 9000

CERTIFIED

ABRACON IS

ISO 9001:2008

CERTIFIED

30332Esperanza, Rancho Santa Margarita, California 92688

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Resistive

16

OC

Ω

Revised: 08.14.13

ABBTM-NVC-MDCS56

23.24 x 11.93 x 2.05 mm SMT

PCM Interface

SPDIF Interface

PCM_OUT

SPDIF_OUT

SD_OUT

PCM_IN

SPDIF_IN

SD_IN

PCM_SYNC

WS

PCM_CLK

SCK

Table 1. Alternative Functions of the digital Audio Bus Interface on the PCM Interface

PCM

The audio pulse code modulation (PCM) interface supports continuous transmission and reception of PCM encoded

audio data over Bluetooth.

Hardware on ABBTM-NVC-MDCS56 allows the data to be sent to and received from a SCO connection. Up to three

SCO connections can be supported by the PCM interface at any one time.

ABBTM-NVC-MDCS56 can operate as the PCM interface master generating PCM_SYNC and PCM_CLK or as a PCM

interface slave accepting externally generated PCM_SYNC and PCM_CLK.

ABBTM-NVC-MDCS56 is compatible with a variety of clock formats, including Long Frame Sync, Short Frame Sync

and GCI timing environments.

It supports 13-bit or 16-bit linear, 8-bit u-law or A-law companded sample formats and can receive and transmit on any

selection of three of the first four slots following PCM_SYNC.

ABBTM-NVC-MDCS56 interfaces directly to PCM audio devices including the following:

•

Qualcomm MSM 3000 series and MSM 5000 series CDMA baseband devices

•

OKI MSM7705 four channel A-law and μ-law CODEC

•

Motorola MC145481 8-bit A-law and μ-law CODEC

•

Motorola MC145483 13-bit linear CODEC

•

STW 5093 and 5094 14-bit linear CODECs(8)

•

ABBTM-NVC-MDCS56 is also compatible with the Motorola SSI interface

The interface for the digital audio bus shares the same pins as the PCM codec interface described in Table 1 below,which

means each of the audio buses are mutually exclusive in their usage. Table 1 lists these alternative functions.

The audio input circuitry consists of a dual audio input that can be configured to be either single-ended or fully differential

and programmed for either microphone or line input. It has an analogue and digital programmable gain stage for optimization

of different microphones.

The audio output circuitry consists of a dual differential class A-B output stage.