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WM8904ECS/R Scheda tecnica(PDF) 182 Page - Wolfson Microelectronics plc

Il numero della parte WM8904ECS/R
Spiegazioni elettronici  Ultra Low Power CODEC for Portable Audio Applications
PDF  188 Pages
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Produttore elettronici  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8904ECS/R Scheda tecnica(HTML) 182 Page - Wolfson Microelectronics plc

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WM8904
Pre-Production
w
PP, Rev 3.3, September 2012
182
3.
Zobel Networks
The Zobel network shown in Figure 71 is required on HPOUTL, HPOUTR, LINEOUTL and LINEOUTR whenever that output is
enabled. Stability of these ground-referenced outputs across all process corners cannot be guaranteed without the Zobel
network components. (Note that, if any ground-referenced output pin is not required, the zobel network components can be
omitted from the output pin, and the pin can be left floating.) The Zobel network requirement is detailed further in the
applications note WAN_0212 “Class W Headphone Impedance Compensation”.
Zobel networks (C6, C7, C8, C9, R1, R2, R3, R4) should be positioned reasonably close to the WM8904.
4.
Microphone Grounding
R7 and R8 can be populated with other values to remove common mode noise on the microphone if required.



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