STA320 datasheet(19/37 Pages) STMICROELECTRONICS

Part #	STA320

Description	2.1 MULTICHANNELS DIGITAL AUDIO PROCESSOR WITH DDTM

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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STA320

Table 20. Automode Gain Compression/Limiters Selection

5.8.2

5.8.3 AutoMode Register 2(Address 0x0C)

5.8.4 AM Interference Frequency Switching

Table 21. AutoMode AM Switching Frequency Selection

5.8.5 Bass Management Crossover

AMGC(1...0)

Mode

00

User Programmable GC

01

AC No Clipping 2.1

10

AC Limited Clipping (10%) 2.1

11

DRC Nighttime Listening Mode 2.1

BIT

R/W

RST

NAME

DESCRIPTION

7

R/W

1

AMPS

AutoMode Pre-Scale

0 - User Defined Pre-scale when AMEQ /= 00

1 - -18dB used for Pre-scale when AMEQ /= 00

D7

D6

D5

D4

D3

D2

D1

D0

XO3

XO2

XO1

XO0

AMAM2

AMAM1

AMAM0

AMAME

000000

00

BIT

R/W

RST

NAME

DESCRIPTION

0

R/W

0

AMAME

AutoMode AM Enable

0 - Switching Frequency Determined by PWMS Setting

1 - Switching Frequency Determined by AMAM Settings

AMAM(2..0)

48kHz/96kHz Input Fs

44.1kHz/88.2kHz Input Fs

000

0.535MHz – 0.720MHz

0.535MHz – 0.670Mhz

001

0.721MHz – 0.900MHz

0.671MHz – 0.800MHz

010

0.901MHz – 1.100MHz

0.801MHz – 1.000MHz

011

1.101MHz – 1.300MHz

1.001MHz – 1.180MHz

100

1.301MHz – 1.480MHz

1.181MHz – 1.340Mhz

101

1.481MHz – 1.600MHz

1.341MHz – 1.500MHz

110

1.601MHz – 1.700MHz

1.501MHz – 1.700MHz

BIT

R/W

RST

NAME

DESCRIPTION

4

R/W

0

XO0

Selects the Bass-Management Crossover Frequency. A 1st-Order

Hi-Pass filter (channels 1 and 2) or a 2nd-Order Lo-pass filter

(channel 3) at the selected frequency is performed.

5R/W

0

XO1

6R/W

0

XO2

7R/W

0

XO3

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