STM32F107VCT6 datasheet(95/103 Pages) STMICROELECTRONICS

95 / 103 page

STM32F105xx, STM32F107xx

Application block diagrams

Doc ID 15274 Rev 6

95/104

A.3

Complete audio player solutions

Two solutions are offered, illustrated in Figure 53 and Figure 54.

Figure 53 shows storage media to audio DAC/amplifier streaming using a software Codec.

This solution implements an audio crystal to provide audio class I2S accuracy on the master

clock (0.5% error maximum, see the Serial peripheral interface section in the reference

manual for details).

Figure 53.

Complete audio player solution 1

Figure 54 shows storage media to audio Codec/amplifier streaming with SOF

synchronization of input/output audio streaming using a hardware Codec.

Figure 54.

Complete audio player solution 2

Cortex-M3 core

72 MHz

OTG

(host

mode) +

PHY

SPI

GPIO

I2S

XTAL

14.7456 MHz

USB

Mass-storage

device

MMC/

SDCard

LCD

touch

screen

Control

buttons

DAC +

Audio

ampli

File

System

Program memory

Audio

CODEC

User

application

STM32F105/STM32F107

ai15660

Cortex-M3 core

72 MHz

OTG

PHY

SPI

GPIO

I2S

XTAL

14.7456 MHz

USB

Mass-storage

device

MMC/

SDCard

LCD

touch

screen

Control

buttons

Audio

ampli

File

System

Program memory

Audio

CODEC

User

application

STM32F105/STM32F107

ai15661

SOF

SOF synchronization of input/output

audio streaming

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