STA321 datasheet(65/157 Pages) STMICROELECTRONICS

部件名	STA321

功能描述	4-channel digital audio system with FFX??driver

PDF	157 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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65 / 157 page

STA321

ADC

Doc ID 15351 Rev 3

65/157

10.2

Application schematic

Figure 40.

Typical connections for power supplies and inputs

10.2.1

Configuration example

This is an example of the register setup for the ADC inputs. It is assumed that every

peripheral is already configured and working correctly.

There are other configuration examples to help you get started please refer to other

chapters and also to Chapter 14: Register description on page 77 in order to get all the

necessary and complementary details.

Table 27 shows the register settings for selecting INL2 and INR2 as input source for SRC

and SAI_out1 and using the PGA with a 12-dB gain.

Table 27.

Example register settings for ADC

Value

Description

ADCCFG1

0x40

Selecting INL2 and INR2 as sources

ADCCFG0

0x52

PGA Gain = +12 dB, PGA enabled, ADC clock on

P2SDATA

0x40

ADC Data routed also to the SAI_out

STA321 数据表(PDF) 65 Page - STMicroelectronics