TEST CIRCUITS(continued)
EXT TRIGGER
BIAS
Network Analyzer
(HP8753ES)
VBIAS
P1
P2
VCC
DA
IN
S1A
RL = 150Ω
50Ω(1)
VIN
DUT
EN
DB
VEN
S1B
RL = 150Ω
RIN = 10Ω
NOTES: (1) A 50Ω termination resistor is needed for the network analyzer.
Figure 4. Test Circuit for Crosstalk (XTALK)
Crosstalk is measured at the output of the nonadjacent ON channel. For example, when VIN = 0, VEN = 0, and
DA is the input, the output is measured at S1B. All unused analog input (D) ports and output (S) ports are
connected to GND through 10Ω and 50Ω pulldown resistors, respectively.
HP8753ES Setup
Average = 4
RBW = 3 kHz
VBIAS = 0.35 V
ST = 2 s
P1 = 0 dBM
９
SGM330A
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
