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부품명 DLPC3421
상세설명  DLPC3421 Display Controller
PDF  63 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
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DLPC3421 데이터시트(HTML) 17 Page - Texas Instruments

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6.8 DMD Sub-LVDS Interface Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCM
Common mode voltage
0.8
0.9
1.0
V
VCM (Δpp)(1)
VCM change peak-to-peak (during switching)
75
mV
VCM (Δss)(1)
VCM change steady state
–10
10
mV
|VOD|(2)
Differential output voltage magnitude
170
250
350
mV
VOD (Δ)
VOD change (between logic states)
–10
10
mV
VOH
Single-ended output voltage high
0.825
1.025
1.175
V
VOL
Single-ended output voltage low
0.625
0.775
0.975
V
Txterm
Internal differential termination
80
100
120
Ω
Txload
100-Ω differential PCB trace
(50-Ω transmission lines)
0.5
6
in
(1)
See Figure 6-1.
(2)
VOD is the differential voltage measured across a 100-Ω termination resistance connected directly between the transmitter differential
pins. VOD = VP – VN, where P and N are the differential output pins. |VOD| is the magnitude of the peak-to-peak voltage swing across
the P and N output pins (see Figure 6-2). VCM cancels out between signals when measured differentially, thus the reason VOD swings
relative to zero.
VCM (ûP-P)
VCM (ûSS)
VCM
Figure 6-1. Common Mode Voltage
+VOD
20
10
40
30
60
(0 V) 50
80
70
100
90
0
tFALL
tRISE
|VOD|
|VOD|
±VOD
VCM is removed when the signals are viewed differentially.
Figure 6-2. Differential Output Signal
www.ti.com
DLPC3421
DLPS231 – OCTOBER 2021
Copyright © 2021 Texas Instruments Incorporated
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