WM8804GEDS/R View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

WM8804GEDS/R

1:1 Digital Interface Transceiver with PLL

Cirrus Logic 

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WM8804

DIGITAL ROUTING CONTROL

Production Data

Figure 15 Digital Routing Paths within the WM8804

Digital signal routing within the WM8804 is controlled by the TXSRC register. In order to ensure

proper operation when changing TXSRC, the S/PDIF transmitter module should be powered down

prior to changing the TXSRC control register and powered up again once the routing path has been

changed.

REGISTER

ADDRESS

R30

PWRDN

1Eh

R21

SPDTX4

15h

BIT

LABEL

DEFAULT

2 SPDIFTXPD

1

6

TXSRC

1

Table 18 Digital Signal Routing Control Registers

DESCRIPTION

S/PDIF Transmitter Powerdown

0 = S/PDIF transmitter enabled

1 = S/PDIF transmitter disabled

S/PDIF Transmitter Data Source

0 = S/PDIF Received Data –

SPDIFTXCLK Source = CLK2

1 = Digital Audio Interface

Received Data – SPDIFTXCLK

Source = MCLK Input/Output

Signal at MCLK Pin

w

PD Rev 4.1 September 2007

20

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