Comments (4)
Yes C2 can be made 4.7uF.
C5 is 100nF for button hardware's debounce filtering although we
have software debounce filter.
We should retain that value else can remove it if space is an issue.
On Sat, Jun 29, 2013 at 3:45 AM, cazzo [email protected] wrote:
Looking at the new BoM, would be great if we could reduce the number of
capacitor values we have in the design. Two questions (numbers refer to the
'satish' branch):
- Could we make C2 4.7uF as well?
- Could we make C5 either 12.5pF or 22pF? @andyw-lalahttps://github.com/andyw-lala,
any RF implications there?—
Reply to this email directly or view it on GitHubhttps://github.com//issues/14
.
from core.
Sorry Satish - realized I didn't commit my last changes! C5 should actually be the capacitor leading out to the uFL connector
Zach Supalla
312.953.3413
On Saturday, June 29, 2013 at 2:52 AM, Satish Nair wrote:
Yes C2 can be made 4.7uF.
C5 is 100nF for button hardware's debounce filtering although we
have software debounce filter.
We should retain that value else can remove it if space is an issue.On Sat, Jun 29, 2013 at 3:45 AM, cazzo <[email protected] (mailto:[email protected])> wrote:
Looking at the new BoM, would be great if we could reduce the number of
capacitor values we have in the design. Two questions (numbers refer to the
'satish' branch):
- Could we make C2 4.7uF as well?
- Could we make C5 either 12.5pF or 22pF? @andyw-lalahttps://github.com/andyw-lala,
any RF implications there?—
Reply to this email directly or view it on GitHubhttps://github.com//issues/14
.—
Reply to this email directly or view it on GitHub (#14 (comment)).
from core.
The RF caps (C12 or C16) in the andyw branch could both be changed to
12.5pF with no ill effect, as long as they are low-loss @ 2.5GHz. I don't
know where you are int eh crystal selection process, but by choosing the
right parts, it may be possible to use one capacitor value for all 6
locations. From an RF standpoint, I'd expect to me able to use any value
between 10 and 15pF for the RF coupling circuit.
On Sat, Jun 29, 2013 at 9:43 AM, cazzo [email protected] wrote:
Sorry Satish - realized I didn't commit my last changes! C5 should
actually be the capacitor leading out to the uFL connectorZach Supalla
312.953.3413On Saturday, June 29, 2013 at 2:52 AM, Satish Nair wrote:
Yes C2 can be made 4.7uF.
C5 is 100nF for button hardware's debounce filtering although we
have software debounce filter.
We should retain that value else can remove it if space is an issue.On Sat, Jun 29, 2013 at 3:45 AM, cazzo <[email protected](mailto:
[email protected])> wrote:Looking at the new BoM, would be great if we could reduce the number
of
capacitor values we have in the design. Two questions (numbers refer
to the
'satish' branch):
- Could we make C2 4.7uF as well?
- Could we make C5 either 12.5pF or 22pF? @andyw-lala<
https://github.com/andyw-lala>,
any RF implications there?—
Reply to this email directly or view it on GitHub<
https://github.com/sprk/core/issues/14>
.—
Reply to this email directly or view it on GitHub (
#14 (comment)).—
Reply to this email directly or view it on GitHubhttps://github.com//issues/14#issuecomment-20230944
.
Andy
from core.
I have updated the "satish" branch with today's changes. It includes Andy's update.
Please pull this branch before making changes.
from core.
Related Issues (20)
- Revert back to 5mm x 3.2mm crystal footprint HOT 12
- Eliminate solder seeping through board
- Make RF trace 25 mil to match 50 ohm impedance HOT 1
- Make Spark logo thicker so it doesn't get lost on the silkscreen
- Add FCC/CE logos to silkscreen on the back of the Core
- Fix silkscreen for RGB LED
- Re-introduce PTC HOT 1
- Find lower load capacitance RTC crystal
- Add FCC and CE logos to silkscreen
- Fix RGB LED footprint HOT 2
- Move silkscreen on the headers from the top layer to the bottom layer
- Relabel BTN to MODE
- what's the purpose of tri-state buffer on wifi module SPI_DOUT HOT 1
- Make uFL footprint smaller
- Re-implement WIFI-CS/WIFI-EN fix for buffer
- Binary Definitions Missing HOT 1
- test
- USB Connector Hole Size
- Latest micro-USB footprint
- Spark on The Changelog! HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from core.