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WM8945ECS/R Datasheet(PDF) 23 Page - Wolfson Microelectronics plc

Part # WM8945ECS/R
Description  Mono Low-Power CODEC with Video Buffer and Touch Panel Controller
PDF  169 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8945ECS/R Datasheet(HTML) 23 Page - Wolfson Microelectronics plc

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Production Data
WM8945
w
PD, May 2011, Rev 4.1
23
ANALOGUE INPUT SIGNAL PATH
The WM8945 has four analogue input pins, which may be selected in different configurations. The
analogue input paths can support line and microphone inputs, in single-ended or pseudo-differential
modes. Two of the input pins (AUX1 and AUX2) may be configured either as audio inputs or may be
used as inputs to the Auxiliary ADC for analogue measurement or monitoring.
The input PGA (PGA_L) is routed to the Analogue to Digital converter (ADC). There is also a bypass
path, enabling the signal to be routed directly to the output mixers.
The WM8945 input signal paths and control registers are illustrated in Figure 10.
Figure 10 Input Signal Paths



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