WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 82
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WM8351CGEB/RV
Manufacturer Part Number
WM8351CGEB/RV
Description
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8351CGEBRV.pdf
(330 pages)
- Current page: 82 of 330
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WM8351
13.9 ANALOGUE OUTPUTS
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The headphone outputs, OUT1L and OUT1R can drive a 16 or 32 headphone load, either through
DC blocking capacitors, or DC coupled without any capacitor. Each output has an analogue volume
control PGA with a gain range of -57dB to +6dB as shown in Figure 44.
Common mode noise rejection is also possible on the OUT1L and OUT1R outputs, using HPCOM as
the return path. The HPCOM feature must be enabled via the OUT1_FB register field and the
HPCOM connection must be AC coupled to the headphone output. A 4.7uF coupling capacitor is
required between the noisy ground connection the HPCOM pin.
The control register fields for the OUT1L and OUT1R outputs are described in Table 40. The
available output configurations are shown in Section 13.9.3.
Figure 44 Headphone Outputs OUT1L and OUT1R
13.9.1
OUT1L AND OUT1R
PD, April 2012, Rev 4.5
Production Data
82
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