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TMUX7308FRRPR データシート(PDF) 33 Page - Texas Instruments

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部品番号 TMUX7308FRRPR
部品情報  TMUX730xF 짹60-V Fault-Protected, 8:1 and Dual 4:1 Multiplexers with Latch-Up Immunity and 1.8-V Logic
PDF  54 Pages
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TMUX7308FRRPR データシート(HTML) 33 Page - Texas Instruments

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8.13 Bandwidth
Bandwidth (BW) is defined as the range of frequencies that are attenuated by < 3 dB when the input is applied to
the source pin (Sx) of an on-channel, and the output is measured at the drain pin (D or Dx) of the TMUX730xF.
Figure 8-15 shows the setup used to measure bandwidth of the switch.
Ax, EN
GND
VAX
VEN
SX
D/ DX
Other
Sx/ Dx
Pins
VS
VOUT
RS
SW
N.C.
SW
N.C.
50Ÿ
Network Analyzer
SW
$=J@SE@PD = 20 × .KC
8176
85
VDD
VSS
VDD
VSS
GND
0.1 µF
GND
0.1 µF
Figure 8-15. Bandwidth Measurement Setup
8.14 THD + Noise
The total harmonic distortion (THD) of a signal is a measurement of the harmonic distortion, and is defined
as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency
at the multiplexer output. The on-resistance of the TMUX7308F and TMUX7309F varies with the amplitude
of the input signal and results in distortion when the drain pin is connected to a low-impedance load. Total
harmonic distortion plus noise is denoted as THD+N. Figure 8-16 shows the setup used to measure THD+N of
the devices.
Ax, EN
GND
VAX
VEN
SX
D/ DX
Other
Sx/ Dx
Pins
VS
Audio Precision
VOUT
RS
RL
SW
SW
N.C.
SW
N.C.
VDD
VSS
VDD
VSS
GND
0.1 µF
GND
0.1 µF
Figure 8-16. THD+N Measurement Setup
www.ti.com
TMUX7308F, TMUX7309F
SCDS403B – FEBRUARY 2021 – REVISED DECEMBER 2021
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: TMUX7308F TMUX7309F



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