WM8900LGEFK/RV Wolfson Microelectronics, WM8900LGEFK/RV Datasheet - Page 101

• Manufacturer Part Number: WM8900LGEFK/RV
• Description: Audio CODECs Ultra Low Power Hi-Fi CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8900LGEFK/RV

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

Production Data
w
R25 (19h)
Input Boost Mixer 2
R26 (1Ah)
ADC Signal Path
R27 (1Bh)
Aux Boost
R30 (1Eh)
Additional Control
REGISTER ADDRESS
6:4
2:0
5:4
1:0
6:4
2:0
BIT
6
2
8
7
5
4
3
1
IN3R_BOOST [2:0]
IN2R_BOOST [2:0]
INL_TO_MIXINL
INL_MIXINL_BOOST
[1:0]
INR_TO_MIXINR
INR_MIXINR_BOOST
[1:0]
IN4L_BOOST [2:0]
IN4R_BOOST [2:0]
OUT1_DIS
OUT2_DIS
VMID_DISCH
BIAS_SRC
VMID_SOFTST
TEMP_SD
LABEL
DEFAULT
100
100
100
100
00
00
0
0
0
0
0
0
0
1
RINPUT3 to Boost Gain
000 = -12dB
…6dB steps up to
011 = +6dB
1XX = Mute
RINPUT2 to Boost Gain
000 = -12dB
…6dB steps up to
011 = +6dB
1XX = Mute
Connect Left Input PGA to Left Input Boost
mixer
0 = Not connected
1 = Connected
Left Channel PGA Boost Gain
00 = +0dB
01 = +13dB
10 = +20dB
11 = +29dB
Connect Right Input PGA to Right Input
Boost mixer
0 = Not connected
1 = Connected
Right Channel PGA Boost Gain
00 = +0dB
01 = +13dB
10 = +20dB
11 = +29dB
AUX input to Boost Gain
000 = -12dB
...6dB steps up to
011 = +6dB
1XX = Mute
AUX input to Boost Gain
000 = -12dB
...6dB steps up to
011 = +6dB
1XX = Mute
1 = Clamps LINEOUT_1L and
LINEOUT_1R to GND via 8K resistance
0 = 8k resistance not connected to GND
1 = Clamps LINEOUT_2L and
LINEOUT_2R to GND via 8K resistance
0 = 8k resistance not connected to GND
Enables fast discharge of Vmid to GND
Vmid bias select.
Normally 0 but can be temporarily set to
one during startup to select the soft-start
Vmid source.
Vmid soft-start control.
Normally 0 but can be temporarily set to
one during startup to ramp Vmid in a
controlled manner.
Thermal Shutdown Enable
0 = Thermal shutdown disabled
1 = Thermal shutdown enabled
(TEMP_ENA must be enabled for this
function to work)
DESCRIPTION
PD, August 2008, Rev 4.0
WM8900
101