Q2

Figure 1. Outputs of 49 Phase Amplifiers

Oscilloscope Settings

Vertical

0.05 V/Div AC

Horizontal 0.05 ps/Div

Probe1O:l

Analyzer Settings

INSTR PRESET

Table 2. Phase Amplifier Voltage Levels

Voltage Levels

Ql Q2

Emitter -8.0 -8.0

Base -7.4 -7.4

Collector -3.6 -3.6

Limiting Amplifier @

The Limiting Amplifier shapes and amplifies the 10 MHz reference from the Frequency Standard (A22). Typical voltage levels for Ul are shown in Table 3.

Table 3. Limiting Amplifier Voltage Levels

Ul Pin Number Idc Voltage Level

I

1

I

+5.0