WM9713L_06 WOLFSON [Wolfson Microelectronics plc], WM9713L_06 Datasheet - Page 41
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WM9713L_06
Manufacturer Part Number
WM9713L_06
Description
AC 97 Audio + Touchpanel CODEC
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9713L_06.pdf
(108 pages)
- Current page: 41 of 108
- Download datasheet (2Mb)
Pre-Production
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SINGLE MIC OPERATION
Up to three microphones can be connected in a single-ended configuration. Any one of the three
MICs can be selected as the input to MPA using MPASEL[1:0] (Register 22h, bits 13:12). Only the
microphone on MIC2B can be selected to MPB. Note that MPABST always sets the gain for the
selected MPA input microphone. If MIC2B is the selected input for MPA it is recommended that MPB
is disabled.
DUAL MIC OPERATION
Up to two microphones can be connected in a dual differential configuration. This is suitable for
stereo microphone or noise cancellation applications. Mic1 is connected between the MIC2A and
MICCM inputs and mic2 is connected between the MIC2B and MICCM inputs as shown in Figure 13.
Additionally, another microphone can be supported on MIC1 selected through the MPA input mux.
Note that the microphones can be connected in a single-ended configuration.
Figure 13 Dual Microphone Configuration
PP Rev 3.0 June 2006
WM9713L
41
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