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NETWORK ANALYZER
DC-IN
PATTERN
GENERATOR DATA
CLOCK
S-PARAMETER TEST SET
PORT1
PORT2
Zo = 50 Ω
Zo= 50 Ω
VCC
22 nF
55 Ω
4 or 17
8 or 14 OUT
22 nF
8.2
kΩ
2200 Ω
R
TZA3036
IPHOTO
2
OUTQ 22 nF
7 or 13
9, 10, 11, 12
GND
SAMPLING OSCILLOSCOPE
12
Zo = 50 Ω
TRIGGER
INPUT
001aad083
Total impedance of the test circuit (Ztot(tc)) is calculated by the equation Ztot(tc) = s21 × (R + Zi) × 2, where s21 is the insertion loss of ports 1 and 2.
Typical values: R = 2200 Ω, Zi = 300 Ω.
Fig 9. Test circuit