WM8983GEFL/V Wolfson Microelectronics, WM8983GEFL/V Datasheet - Page 72

• 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 43 Speaker Boost Stage Control
Table 44 Output Boost Stage Details
Table 45 AUXR – ROUT2 BEEP Mixer Function
ZERO CROSS TIMEOUT
Table 46 Timeout Clock Enable Control
A zero-cross timeout function is provided so that if zero cross is enabled on the input or output PGAs
the gain will automatically update after a timeout period if a zero cross has not occurred. This is
enabled by setting SLOWCLKEN. The timeout period is dependent on the clock input to the digital
and is equal to 2
Note: SLOWCLKEN is also used for the jack insert detect debounce circuit
R49
Output control
R1
Power
management
1
R43
Beep control
R7
Additional
Control
SPKBOOST
REGISTER
REGISTER
ADDRESS
ADDRESS
REGISTER
ADDRESS
0
1
21
* SYSCLK period.
2
8
5
4
3:1
0
0
STAGE GAIN
BIT
BIT
BIT
1.5x (3.52dB)
OUTPUT
1x (0dB)
SPKBOOST
BUFDCOPEN
MUTERPGA2INV
INVROUT2
BEEPVOL
BEEPEN
SLOWCLKEN
LABEL
LABEL
LABEL
1.5xAVDD1/2
OUTPUT DC
AVDD1/2
LEVEL
0
DEFAULT
DEFAULT
DEFAULT
000
0
0
0
0
0
CONFIGURATION
OUTPUT STAGE
Non-inverting
0 = slow clock disabled
1 = slow clock enabled
Inverting
Slow clock enable.
1 = speaker gain = +1.5;
output stages when in 1.5x gain
boost configuration.
0 = Buffer disabled
1 = Buffer enabled (required for 1.5x
gain boost)
Invert ROUT2 output
000 = -15dB
001 = -12dB
010 = -9dB
011 = -6dB
100 = -3dB
101 = 0dB
110 = +3dB
111 = +6dB
1 = enable AUXR beep input
0 = speaker gain = -1;
Dedicated buffer for DC level shifting
Mute input to INVROUT2 mixer
AUXR input to ROUT2 inverter gain
0 = mute AUXR beep input
DC = AVDD1 / 2
DC = 1.5 x AVDD1 / 2
DESCRIPTION
DESCRIPTION
DESCRIPTION
PD, Rev 4.3, May 2010
Production Data
72