Bluetooth Module

ABRACON IS

ISO 9001 / QS 9000

CERTIFIED

ABRACON IS

ISO 9001:2008

CERTIFIED

30332Esperanza, Rancho Santa Margarita, California 92688

Revised: 08.08.13

Visit www.abracon.com for Terms & Conditions of Sale

||||| | | | | | | | | | |

25.8 x 13.4 x 2.2 mm SMT

ABBTM-NVC-MDCS42A

Long Frame Sync

Long Frame Sync is the name given to a clocking format that controls the transfer of PCM data words or samples. In

Long Frame Sync, the rising edge of PCM_SYNC indicates the start of the PCM word. When the module is configured

as PCM master, generating PCM_SYNC and PCM_CLK, then PCM_SYNC is 8-bits long. When the module is

configured as PCM Slave, PCM_SYNC may be from two consecutive falling edges of PCM_CLK to half the

PCM_SYNC rate, i.e., 62.5µs long.

Short Frame Sync

In Short Frame Sync, the falling edge of PCM_SYNC indicates the start of the PCM word. PCM_SYNC is always one

clock cycle long.

As with Long Frame Sync, the module samples PCM_IN on the falling edge of PCM_CLK and transmits PCM_OUT on

the rising edge. PCM_OUT may be configured to be high impedance on the falling edge of PCM_CLK in the LSB

position or on the rising edge.

Figure 5. Long Frame Sync (shown with 8-bit Companded Sample)

Figure 6. Short Frame Sync (shown with 16-bit Sample)

RoHS

ABBTM- NVC-MDCS42A

FCC ID: OC3BM1842

DC: 1326