WM8983GEFL/V Wolfson Microelectronics, WM8983GEFL/V Datasheet - Page 68

• Manufacturer Part Number: WM8983GEFL/V
• Description: Audio CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8983GEFL/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8983
w
Table 41 OUT1 Volume Control
SPEAKER OUTPUTS (LOUT2 AND ROUT2)
The outputs LOUT2 and ROUT2 are designed to drive an 8Ω BTL speaker but can optionally drive
two headphone loads of 16Ω/32Ω or a line output (see Headphone Output and Line Output sections,
respectively). Each output has an individual volume control PGA, an output boost/level shift bit, a
mute and an enable as shown in Figure 34.
mixer outputs respectively.
The ROUT2 signal path also has an optional invert. The amplifier used for this invert can be used to
mix in the AUXR signal with an adjustable gain range of -15dB -> +6dB. This allows a ‘beep’ signal
to be applied only to the speaker output without affecting the HP or line outputs.
R52
LOUT1
Volume
control
R53
ROUT1
Volume
control
REGISTER
ADDRESS
7
6
5:0
8
7
6
5:0
8
BIT
LOUT1ZC
LOUT1MUTE
LOUT1VOL
HPVU
ROUT1ZC
ROUT1MUTE
ROUT1VOL
HPVU
LABEL
LOUT2 and ROUT2 output the left and right channel
Not latched
Not latched
DEFAULT
111001
111001
0
0
0
0
Headphone volume zero cross
enable:
1 = Change gain on zero cross only
0 = Change gain immediately
Left headphone output mute:
0 = Normal operation
1 = Mute
000000 = -57dB
000001 = -56dB
...
111001 = 0dB
...
111111 = +6dB
LOUT1 and ROUT1 volumes do not
update until a 1 is written to
OUT1VU (in reg 52 or 53)
Headphone volume zero cross
enable:
1 = Change gain on zero cross only
0 = Change gain immediately
Right headphone output mute:
0 = Normal operation
1 = Mute
Right headphone output volume:
000000 = -57dB
000001 = -56dB
…
111001 = 0dB
...
111111 = +6dB
LOUT1 and ROUT1 volumes do not
update until a 1 is written to
OUT1VU (in reg 52 or 53)
Left headphone output volume:
DESCRIPTION
PD, Rev 4.3, May 2010
Production Data
68