High Speed USB 2.0 (480Mbps)
DPDT Analog Switch
SGM7227
TEST CIRCUITS (continued)
VCC
0.1μF
VCC
Dn
HSDn
VIN
50Ω
RL
HSDn
NC
Dn
Network
Analyzer
VOUT
50Ω
S
VS
GND
Channel-to-Channel Crosstalk = -20 log (VHSDn/VOUT
)
Test Circuit 5. Channel-to-Channel Crosstalk
VCC
0.1μF
VCC
VIN
50Ω
HSDn
Dn
VS
S
VOUT
Network
Analyzer
50Ω
GND
CL
Test Circuit 6. -3dB Bandwidth
VCC
0.1μF
VIH
VS
VCC
tR < 5ns
tF < 5ns
Floating
HSD1n
HSD2n
VIL
RS
Dn
VOUT
VOUT
ΔVOUT
S
CL
GND
VS
Q = ΔVOUT × CL
Test Circuit 7. Charge Injection (Q)
SG Micro Corp
www.sg-micro.com
MAY 2022
8