sta538 STMicroelectronics, sta538 Datasheet - Page 37

• Manufacturer Part Number: sta538
• Description: 2 X 1.3 W Class-d Amplifier With Analog Or Digital Input 2.0 Multichannel Digital Audio Processor With Ffx
• Manufacturer: STMicroelectronics

STA538
Table 20.
10.2
FFXCFG0
Address:
Type:
Buffer:
Reset:
Description:
Address
0x2A
0x2B
0x2D
0x2E
0x29
0x32
MUTE
Bit 7
PWMINT1
PWMINT2
BISTST0
BISTST1
BISTST2
POWST
Register summary (continued)
General registers
Name
3:0 TIM_SOFT_VOL: volume control time step for any 0.5 dB volume change
POW_STBY
7 MUTE:
6 POW_STBY:
5 SOFT_VOL_ON:
4 BIN_SOFTSTART:
Bit 6
0: default
1: FFX output is zero
0: FFX bridge is in power-up mode
1: FFX bridge is put in standby mode (default)
0: smooth transition not active
1: smooth transition when changing volume control (default)
Reserved (1: default)
Time is (2
Default is 666.66 µs
0x00
R/W
No
0x75
POWER
DOWN
Bit 7
SOFT_VOL_ON
TIM_SOFT_VOL
Bit 5
TRISTATE
POW_
Bit 6
FFX configuration register 0
) * 20.83 µs
SOFTSTART
FAULT1A
BIN_
Bit 4
POW_
Bit 5
FAULT1B
POW_
Bit 4
PWM_INT[15:8]
Bit 3
PWM_INT[7:0]
Reserved
Reserved
Reserved
FAULT2A
POW_
Bit 3
Bit 2
TIM_SOFT_VOL[3:0]
FAULT2B
POW_
Bit 2
Bit 1
Bit 1
Registers
Bit 0
Bit 0
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