Dc voltage table – integrated circuits – Elecraft KX1 Manual User Manual
Page 92
E-5
DC Voltage Table – Integrated Circuits
NOTES: Measurements were made with a 50-ohm dummy load connected and a supply voltage of 13 V. The 30- meter option
was installed (KXB30) and the ATU was removed (KXAT1). In general, your measurements should be within 10% of the values
shown. Pins NOT listed in the table should indicate 0.0 volts DC. Pins marked with (*) are hard to measure due to noise
pickup. Shaded areas show transmit-mode measurements (using TUNE).
Ref. Pin VDC Ref. Pin VDC Ref. Pin VDC Ref. Pin VDC Ref. Pin VDC
U1 1 5.0 U1 18 0.0 U2 7 0.0 U3 4 0.0 U5 5 4.44
2
5.0 19
0.0 8
1.32
5
0.0 6
5.57
3 4.6 20
5.0 9 0.0 6 5.9 7
4.95
4 4.9 21
5.0 10
0.0 7 5.9 8
5.62
5 4.9 22
5.0 11
0.0 8 n/c
U6 1
1.39
6 3.4 23
4.9 12
0.0
U4 1
1.26 2
1.39
7 1.4 24
5.0 13
0.0 2 0.0 3 0.0
8 0.0 25
5.0 14
0.0 3 0.0 4
4.39
9 0.8 26
4.7 15
2.5 4 0.0 5
4.47
10
0.9 27
5.0 16
n/c 5
2.97 6
5.54
11
0.0 28
5.0 17
n/c 6
5.93 7
5.04
12 0.0 U2 1 1.15 18 0.0 (n/c) 7 2.99 8 5.62
13
5.0 2
1.18 19
0.32 8
1.26
U7 1 5.0
14
0.0 3
1.41 20
0.32
U5 1
1.39 2 0.0
15
0.0 4
2.69
U3
1
n/c 2
1.39
3
5.0
16
0.0 5
2.69
2
0.0 3
0.0 4
1.17
17
0.0 6
2.69
3
0.0 4
4.44
5
2.69