WM8973LGEFL/V Wolfson Microelectronics, WM8973LGEFL/V Datasheet - Page 30

• Manufacturer Part Number: WM8973LGEFL/V
• Description: Audio CODECs Stereo Codec with H/P Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8973LGEFL/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

WM8973L
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OUTPUT MIXERS
The WM8973L provides the option to mix the DAC output signal with analogue line-in signals from
the LINPUT1/2/3, RINPUT1/2/3 pins or a mono differential input (LINPUT1 – RINPUT1) or (LINPUT2
– RINPUT2), selected by DS (see Table 4) . The level of the mixed-in signals can be controlled with
PGAs (Programmable Gain Amplifiers).
Table 20 Output Mixer Signal Selection
Table 21 Left Output Mixer Control
R34 (22h)
Left Mixer (1)
R36 (24h)
Right Mixer
(1)
R34 (22h)
Left Mixer
Control (1)
R35 (23h)
Left Mixer
Control (2)
REGISTER
REGISTER
ADDRESS
ADDRESS
2:0
2:0
8
7
6:4
8
7
6:4
BIT
BIT
LMIXSEL
RMIXSEL
LD2LO
LI2LO
LI2LOVOL
[2:0]
RD2LO
RI2LO
RI2LOVOL
[2:0]
LABEL
LABEL
000
000
0
0
101
(-9dB)
0
0
101
(-9dB)
DEFAULT
DEFAULT
Left DAC to Left Mixer
0 = Disable (Mute)
1 = Enable Path
LMIXSEL Signal to Left Mixer
0 = Disable (Mute)
1 = Enable Path
LMIXSEL Signal to Left Mixer Volume
000 = +6dB
… (3dB steps)
111 = -15dB
Right DAC to Left Mixer
0 = Disable (Mute)
1 = Enable Path
RMIXSEL Signal to Left Mixer
0 = Disable (Mute)
1 = Enable Path
RMIXSEL Signal to Left Mixer Volume
000 = +6dB
… (3dB steps)
111 = -15dB
Left Input Selection for Output Mix
000 = LINPUT1
001 = LINPUT2
010 = LINPUT3
011 = Left ADC Input (after PGA /
100 = Differential input
Right Input Selection for Output Mix
000 = RINPUT1
001 = RINPUT2
010 = RINPUT3
011 = Right ADC Input (after PGA /
100 = Differential input
MICBOOST)
MICBOOST)
DESCRIPTION
DESCRIPTION
Advanced Information
AI Rev 3.2 July 2004
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