English
Language : 

SGM330A_15 Datasheet, PDF (10/15 Pages) SG Micro Corp – Quad, Wide-Bandwidth SPDT Video Analog Switch
SGM330A
TEST CIRCUITS (Cont.)
Quad, Wide-Bandwidth
SPDT Video Analog Switch
EXT TRIGGER P2
BIAS
Network Analyzer
VBIAS
(HP8753ES)
P1
S1A
RL
S2A
RL
V+
DUT
DA IN
EN
50Ω(1)
VIN
VEN
NOTE: (1) A 50Ω termination resistor is needed for the network analyzer.
Figure 5. Test Circuit for Off Isolation (OIRR)
Off isolation is measured at the output of the OFF channel. For example, when VIN = V+, VEN = 0, and DA is the input, the
output is measured at S1A. All unused analog input (D) ports are left open.
HP8753ES Setup
Average = 4
RBW = 3kHz
VBIAS = 1/2 V+
ST = 2s
P1 = 0dBM
SG Micro Corp
10
www.sg-micro.com