STA321TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA321TR

4-channel digital audio system with FFX™ driver

STMicroelectronics 

Power-up and power-down sequences

Table 13. Frequently used signals

Name

Description

STBY

PWDN

DC regulator

A. OK

DC regulator

CMP_EN_N

EA_STBY

CB_STBY

EA/CB volume

PLL_UNLOCK

PLL_PWDN

CLK_PROC_ON

CLK_PROC

CLK_FFX_ON

clk_ffx

CLK_ADC_ON

clk_adc

CLK_SRC_ON

clk_src

CMP_EN_N

DC_STBY_EN

FFX_ULCK_PLL

Input pin STBY on page 11

Internal

Internal

Bit 1, register STBY_MODES on page 139

Bits 7:6, register FFXCFG1 on page 81

Internal

Bit 7, register PLLST on page 132

Bit 5, register PLLPFE on page 132

Bit 2, register CKOCFG on page 134

Processing clock

Bit 4, register CKOCFG on page 134

FFX clock

Bit 1, register ADCCFG0 on page 133

ADC clock

Bit 3, register CKOCFG on page 134

SRC clock

Bit 1, register STBY_MODES on page 139

Bit 0, register STBY_MODES on page 139

Bits 4:3, register FFXCFG1 on page 81

STA321

24/157

Doc ID 15351 Rev 3

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