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WM8962B Datasheet(PDF) 148 Page - Wolfson Microelectronics plc

Part # WM8962B
Description  Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers
PDF  295 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8962B Datasheet(HTML) 148 Page - Wolfson Microelectronics plc

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WM8962
148
Rev 4.3
A-law Companding
0
20
40
60
80
100
120
0
0.2
0.4
0.6
0.8
1
Normalised Input
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Figure 56 A-Law Companding
LOOPBACK
Setting the LOOPBACK register bit enables digital loopback. When this bit is set, the ADC digital data
output is routed to the DAC digital data input path. The digital audio interface input (DACDAT) is not
used when LOOPBACK is enabled.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R9 (09h)
Audio
Interface (2)
0
LOOPBACK
0
Digital Loopback Function
0 = No loopback
1 = Loopback enabled (ADC data output
is directly input to DAC data input).
Table 95 Loopback Control
Note: When the digital sidetone is enabled, ADC data will also be added to DAC digital data input
path within the Digital Mixing circuit. This applies regardless of whether LOOPBACK is enabled.



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