STA529Q datasheet(29/57 Pages) STMICROELECTRONICS

Part #	STA529Q

Description	FFX™ audio codec with analog and digital inputs and 2 x 1.2 W (or 2 x 100 mW HP) class-D amplifier

PDF	57 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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29 / 57 page

STA529

Serial audio interface

Doc ID 13095 Rev 3

29/57

Serial audio interface

The serial-to-parallel interface and the parallel-to-serial interface can have different

sampling rates.

The following terms are used in this section:

●

BICLK active edge: Pins SDATAI, SDATAO, LRCLKI, LRCLKO always change

synchronously with BITCLK active edges. The active edge can be configured as a

rising or falling edge via register programming.

●

BICLK strobe edge: Pins SDATAI, SDATAO, LRCLKI, LRCLKO should be stable near

BICLK strobe edges, the slave device is able to use strobe edges to latch serial data

internally.

9.1

Master mode

In this mode, pins BICLKI/BICLKO and pins LRCLKI/LRCLKO are configured as outputs.

Figure 8.

Master mode

Table 20.

Master mode

Symbol

Parameter

Min

Typ

Max

Unit

tDL

LRCLKI/LRCLKO propagation delay from BICLK active

edge

010

tDDA

SDATAO propagation delay from BICLKI/O active edge 0

tDST

SDATAI setup time to BICLKI/O strobing edge

tDHT

SDATAI hold time from BICLKI/O strobing edge

BICLKI/

BICLKO

LRCLKI/

LRCLKO

SDATAO

SDATAI

tDST

tDHT

tDL

tDDA

STA529Q Datasheet(PDF) 29 Page - STMicroelectronics

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