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TMUX1574DYYR Fiches technique(PDF) 20 Page - Texas Instruments

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No de pièce TMUX1574DYYR
Description  TMUX1574 Low-Capacitance, 2:1 (SPDT) 4-Channel, Powered-Off Protected Switch with 1.8 V Logic
PDF  44 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TMUX1574DYYR Fiches technique(HTML) 20 Page - Texas Instruments

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OUT
S
V
Channel-to-Channel Crosstalk
20 Log
V
§
·
˜
¨
¸
©
¹
NETWORK
ANALYZER
VDD
0.1µF
VDD
GND
S1A
VSIG = 200 mVpp
VBIAS = VDD / 2
50Ÿ
VOUT
RL
D1
50Ÿ
S4A
50Ÿ
RL
D4
VS
SxA / SxB / Dx
50Ÿ
RL
50Ÿ
RL
OUT
S
V
Off Isolation
20 Log
V
§
·
˜
¨
¸
©
¹
GND
NETWORK
ANALYZER
VOUT
S
D
50Ÿ
VSIG
RL
50Ÿ
VS
VDD
0.1µF
SxA / SxB / Dx
RL
50Ÿ
20
TMUX1574
SCDS391C – OCTOBER 2018 – REVISED DECEMBER 2019
www.ti.com
Product Folder Links: TMUX1574
Submit Documentation Feedback
Copyright © 2018–2019, Texas Instruments Incorporated
7.13 Off Isolation
Off isolation is defined as the ratio of the signal at the drain pin (Dx) of the device when a signal is applied to the
source pin (Sx) of an off-channel. The characteristic impedance, Z0, for the measurement is 50 Ω. Figure 39
shows the setup used to measure off isolation. Use off isolation equation to compute off isolation.
Figure 39. Off Isolation Measurement Setup
(1)
7.14 Channel-to-Channel Crosstalk
Crosstalk is defined as the ratio of the signal at the drain pin (Dx) of a different channel, when a signal is applied
at the source pin (Sx) of an on-channel. The characteristic impedance, Z0, for the measurement is 50 Ω.
Figure 40 shows the setup used to measure, and the equation used to compute crosstalk.
Figure 40. Channel-to-Channel Crosstalk Measurement Setup
(2)



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