FSA5157_07 Datasheet, PDF (8/14 Pages) Fairchild Semiconductor – 0.4Ω Low Voltage SPDT Analog Switch

AC Loading and Waveforms (continued)
FSA5157
VSel
GND
R_T
GND
GND
Network Analyzer
R_S
V_IN
V_S
GND
GND
R_S and R_T are function of application environment
(50, 75 or 100 Ω)
R_T
GND
V_OUT
Crosstalk = 20 Log (V_OUT/V_IN)
Figure 7. Non-Adjacent Channel-to-Channel Crosstalk
Generator
V_S
R_S
V_IN nB_n
FSA5157
GND
V_CC
Input – V_{Sel Off}
0V
C_L* ^VOUT
nS_n
GND
V_OUT
V_Sel
*C_L includes fixture and stray capacitance
GND
Figure 8. Charge Injection Test
On
Off
ΔV_OUT
Q = ΔV_OUT x CL
Capacitance ^A
Meter
F = 1MHz
FSA5157
S
V_Sel = 0 or V_CC
B_n
Capacitance
Meter
F = 1MHz
A ^FSA5157
S
V_Sel = 0 or V_CC
B_n
Channel ON Capacitance
Channel OFF Capacitance
Figure 9. On/Off Capacitance Measurement Setup
©2006 Fairchild Semiconductor Corporation
FSA5157 Rev. 1.0.1
8
www.fairchildsemi.com