Datasheet

Selecting an Input Source and an Output Port

3-6

When ~PORT = HI, the output of the DIT4192 digital audio transmitter (U5) at

connector J4 is selected as the output port. This port is designed to interface

to digital audio signal analyzers and devices that accept AES3 formatted digi-

tal audio data. This includes the S/PDIF inputs of A/V receivers and digital re-

cording devices.

When selecting the digital audio transmitter (U5) as the output port, the setting

of the OM/~S element of switch SW9 will correctly set the Master or Slave

mode for both the SRC419x and DIT4192 devices. The input data format of

the transmitter must be selected using the FMT0 and FMT1 elements of switch

SW3. The format must match the output data format of the SRC419x device,

as described in Section 3.4 of this chapter. Table 3–4 summarizes the trans-

mitter format configuration options using switch SW3.

Table 3–4.Digital Audio Transmitter Input Data Format Configuration

FMT1 FMT0 Data Format

Left Justified, 16– to 24–Bits

Philips I

S, 16– to 24–Bits

Right Justified, 24–Bits

Right Justified, 16–Bits