WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 155

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

w
Production Data
LOPGA
Volume
R33 (21h)
ROPGA
Volume
R34 (22h)
Speaker
Volume
R35 (23h)
Class D (1)
R36 (24h)
Class D (2)
R37 (25h)
Class D (3)
R38 (26h)
Class D (4)
REGISTER
ADDRESS
8
7
6:0
15:9
8
7
6:0
15:2
1:0
15:9
8
7:0
15:0
15:6
5:3
2:0
15:8
7
BIT
OPVU[2]
LOPGAZC
LOPGAVOL
[6:0]
OPVU[3]
ROPGAZC
ROPGAVOL
[6:0]
SPKATTN
[1:0]
CDMODE
DCGAIN
[2:0]
ACGAIN
[2:0]
SPKZC
LABEL
N/A
0b
79h
(0dB)
00h
N/A
0b
79h
(0dB)
0000h
11b
00h
0b
00000011
b
0055h
00000001
00b
000b
000b
00h
0b
DEFAULT
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
LOPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
LOPGA Volume
(See Table 36 for output PGA volume control range)
Reserved - Do Not Change
Output PGA Volume Update
Writing a 1 to this bit will update LOPGA, ROPGA, LOUTVOL
and ROUTVOL volumes simultaneously.
ROPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
ROPGA Volume
(See Table 36 for output PGA volume control range)
Reserved - Do Not Change
Speaker Output Attenuation (SPKN and SPKP)
00 = 0dB
01 = -6dB
10 = -12dB
11 = mute
Reserved - Do Not Change
Speaker Class D Mode Enable
0 = Class D mode
1 = Class AB mode
Reserved - Do Not Change
Reserved - Do Not Change
Reserved - Do Not Change
DC Speaker Boost
000 = 1.00x boost (+0dB)
001 = 1.27x boost (+2.1dB)
010 = 1.40x boost (+2.9dB)
011 = 1.52x boost (+3.6dB)
100 = 1.67x boost (+4.5dB)
101 = 1.8x boost (+5.1dB)
110 to 111 = Reserved
AC Speaker Boost
000 = 1.00x boost (+0dB)
001 = 1.27x boost (+2.1dB)
010 = 1.40x boost (+2.9dB)
011 = 1.52x boost (+3.6dB)
100 = 1.67x boost (+4.5dB)
101 = 1.8x boost (+5.1dB)
110 to 111 = Reserved
Reserved - Do Not Change
SPKPGA Zero Cross Enable
0 = Zero cross disabled
1 = Zero cross enabled
DESCRIPTION
PD, March 2009, Rev 4.0
WM8990
155