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WM8994 Datasheet(PDF) 176 Page - Wolfson Microelectronics plc

Part # WM8994
Description  Multi-Channel Audio Hub CODEC for Smartphones
PDF  359 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8994 Datasheet(HTML) 176 Page - Wolfson Microelectronics plc

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WM8994
Production Data
w
PD, April 2012, Rev 4.4
176
u-law Companding
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Normalised Input
0
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Figure 63 µ-Law Companding
A-law Companding
0
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1
Normalised Input
0
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Figure 64 A-Law Companding
AIF1 - LOOPBACK
The AIF1 interface can provide a Loopback option. When the AIF1_LOOPBACK bit is set, then AIF1
digital audio output is routed to the AIF1 digital audio input. The normal input (DACDAT1) is not used
when AIF1 Loopback is enabled.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R769 (0301h)
AIF1 Control
(2)
0
AIF1_LOOP
BACK
0
AIF1 Digital Loopback Function
0 = No loopback
1 = Loopback enabled (ADCDAT1 data output
is directly input to DACDAT1 data input).
Table 94 AIF1 Loopback



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