RT5508 Datasheet, PDF (29/57 Pages) Richtek Technology Corporation – Speaker Amplifier with Speaker Protection

ADDR Byte
Bits R/W
Name
7:6
- Reserved
5
R/W D_EN_TRIWAVE
4
R/W AMPDS
0x03
1
3
R/W AMPE
2
R/W SPKM
1
R/W SPKE
0
R/W PWDN
7:5
- Reserved
4
R/W DSP_MODE_SEL
0x04
1
3:2 R/W AUD_FMT[1:0]
1:0 R/W AUD_BITS[1:0]
7
R BCK_VALID
6
R/W BCK_MODE_DET_EN
0x05
1
4:3 R/W BCK_MODE[1:0]
2:0 R/W SR_MODE[1:0]
RT5508
Description
-
Enable triangle wave generator
Soft off mode enable
0 : Enter soft mode before off mode
1 : enter off mode directly
Class D Enable
0 : Disable Class D
1 : Enable Class D
Speaker protection mute
0 : Disable speaker protection mute
1 : Enable speaker protection mute
Speaker protection block enable
0 : Disable speaker protection
1 : Enable speaker protection
Chip power down control
0 : Chip enable
1 : Chip power down
-
0 : DSP_MODE_A
1 : DSP_MODE_B
00 : I²S
01 : Left Justify
10 : Right Justify
11 : DSP Mode
00 : 24 Bits
01 : 20 Bits
10 : 18 Bits
11 : 16 Bits
BCK stable and match with BCK_MODE
setting
Check BCK_VALID to enable audio path
0 : without check BCK_VALID
1 : check BCK_VALID
BCK Mode Select
00 : 32fs
01 : 48fs
Others : 64fs
Sampling Rate Select
000 : 8K
001 : 12K/11.025K
010 : 16K
011 : 24K/22.05K
100 : 32K
101 : 48K/44.1K
110 : 96K/88.2K
111 : 192K/176.4K
Default
1
0
0
0
0
1
0
0
0
0
0
2'b10
3'b101
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
DS5508-01 March 2017
is a registered trademark of Richtek Technology Corporation
www.richtek.com
29