12-57
Module I/O Specifications
A27 DAC/Upconverter
See "A15 Reference", page 12-26, for measurement procedure.
Outputs
See "A25 Sum Loop", page 12-50, for measurement procedure.
Channel 2 = 500.0 mvolts/div Offset = 1.450 volts Trigger mode: Edge on negative
edge on Chan2
Timebase = 50.0 ps/div Delay = 0.0000 s Trigger Levels
Chan1 =1.450 volts
Delta T = 1.880 ps Holdoff = 70.000 ns
Start = -248.380 ns Stop = -246.500 ns
Delta V = 2.470 volts
Vmarker1 = 420.0 mvolts Vmarker2 = 2.890 volts
From A15 Reference
10 MHz Ref C J1(19)
Waveshape: Sine
Level: >10 dBm
Harmonics: < -25 dBc
Frequency: 10 MHz
To A19 Measurement Board
AUX4-VM J2(6)
13.4 MHz present level: 0.3 to 0.5 Vdc into 1MΩ
13.4 MHz not present level: -0.3 to -0.5 Vdc into 1MΩ
To A25 Sum Loop A
DAC_UP_OUT J3(15)
Frequency: 13.4 MHz± 50 kHz + Modulation
Resolution: 1 Hz
Level: 0 dBm± 3 dB
Harmonics: < -30 dBc
Spurs >5 kHz offsets: < -60 dBc