XO1.75 A3 Tinderbox

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This page describes the Tinderbox Power setup for the XO-1.75 A3 prototype.

Readings

It must be emphasized that these power measurements are a starting point! They will be improved (hopefully by leaps and bounds !) They are already a good improvement, in terms of power supply efficiency, over the A1/A2 numbers.

Example readings from the XO-1.75 A3 Tinderbox include:

Channels

These are the channels wired up to the Aligent 34980A voltmeter.

Channel Name Connection Resistance
1 DC In PF1 0.056
2 Vin PJP16 0.010
3 Vcore in PJP12 0.050
4 Vcore out PJP8 0.010
5 +3.3VSUS in PJP15 0.100
6 +3.3VSUS out PJP10 0.025
7 +3.3V EC R262 0.100
8 +1.5V in PJP2 0.047
9 +1.5V out PJP3 0.025
10 Vterm PJP4 0.047
11 +1.8V in PJP14 0.100
12 +1.8V out PJP11 0.033
13 DC In PF1 Voltage
14 Vin PJP6 Voltage
15 Vcore PJP8 Voltage
16 +3.3V in PJP7 0.100
17 +3.3V out PJP9 0.033
18 +5V in PJP6 0.100
19 +5V out PJP5 0.033
20 +5V USB U9.7,8 0.050
21 BL in PR16 0.050
22 LCD Analog in PL2 0.100
23 +1.8V LCD PQ22.1 0.100
24 +1.8V DCON PQ21.1 0.100
25 +3.3V DCON SP1 0.100
26 +1.2V out PJP13 0.100
27 +2.5V out PJP1 0.100
28 +3.3V USB PQ24.1 0.100
29 +3.3V WLAN Q15.3 0.100
30 +1.8V WLAN Q11.1 0.100
31 +3.3V eMMC R290 & R314 0.100
32 +3.3V Audio L26 & L44 0.100
33 0.100

They are described to the tinderbox power measurement software by the cl2_a3.csv file.

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