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RF1 DIGITAL TO ANALOG PCB Rev A
RevChange Document
Suggested
SCH PCB CAM
DATE
by:
3/7/2006
3/7/2006
x
x
JK
4/19/2006
x
JK
3/9/2006
x
JK
4/19/2006
Last Revised:
7/12/2006
Performed by:
DATE
JK
7/10/2006
Change all text from Rev 2 to A
JK
7/10/2006
Update all Part Types
Review/Integrate all outstanding ECNs
Note: ***A new solderpaste stencil IS NOT required***
JK
7/10/2006
Correct phono preamp circuit.
Change 1/4" stacked jacks part attribute from 4-02-0902 to 4-02-
JK
7/10/2006
0904.
JK
7/10/2006
Change 4700pF from film to ceramic.
Description of change:
TOP LEVEL CHANGES
SCHEMATIC CHANGES
Reason for change:
Standard procedure
Standard procedure
Standard procedure
No components are added or moved.
681K resistor should be tied directly to the "-" input of op-
amp instead of the 56.2k resistor. However, there is, at
most, a 1dB difference in the frequency response, so
correction may not be necessary.
Match BOM.
4700pF 0805 NP0 ceramic caps are available and are
lower cost than 0805 film.
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