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SECTION IV
Model 4277A
Table 4- 9 . Phase Accuracy Tests
Test Frequency
Phase (DISPLAY B) Test Limits
TEST SIG LEVEL HIGH
TEST
SIG
LEVEL LOW
lOkHz
0±0.52 deg.
Oil.4 deg.
20kHz
010.52 deg.
011.4 deg.
50.5kHz
0+0.52 deg.
011.4 deg.
lOOkHz
010.52 deg.
011.4 deg.
200kHz
010.52 deg.
011.4 deg.
505kHz
010.52 deg.
011.4 deg.
IMHz
010.52 deg.
011.4 deg.
4-24.
This test verifies that Option 001 Internal DC BIAS Supply applies the specified
bias voltages to the device under test.
4277 A
Figure 4-6. Option 001 INT DC Bias Accuracy Test Setup.
EQUIPMENT:
DC Voltmeter ... HP 3478A
Test Fixture .HP 16047A
PROCEDUE:
1. Interconnect the 4277A, 16047A, and 3478A as shown in Figure 4-6.
Note
Do not connect a DUT to the 16047A.
CAUTION
BEFORE OPERATING DC BIAS SWITCH, VERIFY THAT DC BIAS VOLTAGE
IS SET TO ZERO VOLTS.
4-20
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