STA326 STMicroelectronics, STA326 Datasheet - Page 35

• Manufacturer Part Number: STA326
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA326

• Svhc: No SVHC (15-Dec-2010)
• No. Of Pins: 36
• Operating Temperature Range: -20°C To +85°C
• Supply Voltage Max: 36V
• Supply Voltage Min: 10V
• Termination T: RoHS Compliant
• Package / Case: PowerSO
• Interface: I2C
• Interface Type: I2C
• Rohs Compliant: Yes

STA326
6.8.2
Automode AM/prescale/bass management scale (addr 0x0C)
Table 52.
Table 53.
When DDX
bits to automatically adjust the output PWM switching rate dependent upon the specific
radio frequency that the tuner is receiving. The values used in AMAM are also dependent
upon the sample rate determined by the ADC used.
Table 54.
Table 55.
0
3:1
000
001
010
011
100
101
110
7:4
0000
0001
0010
0011
0100
n
Bit
Bit
XO3
D7
0
AMAM[2:0]
RW
RW
RW
XO[2:0]
R/W
R/W
®
Automode AM switching enable
Automode AM switching frequency selection
Automode crossover setting
Crossover frequency selection
is used concurrently with an AM radio tuner, it is advisable to use the AMAM
0
000
0
XO2
D6
RST
RST
0
AMAME
AMAM[2:0]
XO[3:0]
0.535 MHz -0.720 MHz
0.721 MHz -0.900 MHz
0.901 MHz -1.100 MHz
1.101 MHz -1.300 MHz
1.301 MHz -1.480 MHz
1.481 MHz -1.600 MHz
1.601 MHz -1.700 MHz
User
80 Hz
100 Hz
120 Hz
140 Hz
XO1
D5
Name
Name
0
48 kHz/96 kHz input fs
Doc ID 11531 Rev 3
Bass management - Crossover frequency
XO0
D4
0
Automode AM enable
0: switching frequency determined by PWMS setting
1: switching frequency determined by AMAM settings
AM switching frequency setting
000: default
Automode crossover frequency selection
000: user defined crossover coefficients are used
Otherwise: preset coefficients for the crossover setting
desired
AMAM2
D3
0
0.535 MHz -0.670 MHz
0.671 MHz -0.800 MHz
0.801 MHz -1.000 MHz
1.001 MHz -1.180 MHz
1.181 MHz -1.340 MHz
1.341 MHz -1.500 MHz
1.501 MHz - 1.700 MHz
Description
Description
AMAM1
44.1 kHz/88.2 kHz input fs
D2
0
Register description
AMAM0
D1
0
AMAME
D0
0
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