sta538 STMicroelectronics, sta538 Datasheet - Page 38
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sta538
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
Datasheet
1.STA538.pdf
(59 pages)
- Current page: 38 of 59
- Download datasheet (569Kb)
Registers
FFXCFG1
Address:
Type:
Buffer:
Reset:
Description:
MVOL
Address:
Type:
Buffer:
Reset:
Description:
38/59
L1_R2
Bit 7
Bit 7
5:4 PWM_MODE[1:0]:
3:2 PWM_SHIFT[1:0]:
1:0 Reserved (00: default)
7:0 SET_VOL_MASTER[7:0]: master volume control:
MUTE_ON_
INVALID
7 L1_R2: channel mapping:
6 MUTE_ON_ INVALID: mutes PWM outputs if invalid digital data is received:
Bit 6
Bit 6
0: right channel is mapped to output channel 1 and left channel is mapped to output
channel 2
1: left channel is mapped to output channel 1 and right channel is mapped to output
channel 2 (default)
0: outputs are not muted
1: outputs are muted (default)
00: binary (output B is opposite of output A)
01: binary headphones (output B is 50 % duty cycle)
10: ternary
11: phase shift (default)
10: default
PWM period-shift between channels 1 and 2
Value is N * 90
Default is 180
From 0 dB to -127.5 dB in 0.5 dB steps
0x01
R/W
No
0xf8
0x02
R/W
No
0x00
Bit 5
Bit 5
o
o
PWM_MODE[1:0]
Configuration register 1
Master volume control register
SET_VOL_MASTER[7:0]
Bit 4
Bit 4
Bit 3
Bit 3
PWM_SHIFT[1:0]
Bit 2
Bit 2
Bit 1
Bit 1
STA538
Bit 0
Bit 0
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