MAX3815 데이터 시트보기 (PDF) - Maxim Integrated
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MAX3815 Datasheet PDF : 11 Pages
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TMDS Digital Video Equalizer for DVI/HDMI
Cables
Typical Operating Characteristics (continued)
(Typical values are at VCC = +3.3V, TA = +25°C, data pattern = 27 - 1 PRBS + 20 ones + 27 - 1 PRBS (inverted) + 20 zeros, unless
otherwise noted.)
EQUALIZER INPUT EYE AFTER 205ft OF GORE 89
CABLE (TOP) EQUALIZER OUTPUT (BOTTOM)
MAX3815 toc04
DATA RATE = 1.65Gbps
40dB CABLE SKIN-EFFECT LOSS AT 825MHz
EQUALIZER INPUT EYE AFTER 205ft OF GORE 89
CABLE (TOP) EQUALIZER OUTPUT (BOTTOM)
MAX3815 toc05
DATA RATE = 250Mbps
40dB CABLE SKIN-EFFECT LOSS AT 825MHz
EQUALIZER EYES AFTER 100ft MADISON DIGITAL
FLAT-PANEL CABLE, 28 AWG (DATA RATE = 1.65Gbps)
MAX3815 toc06
350mV/div
300mV/div
350mV/div
152ps/div
1ns/div
200ps/div
EQUALIZER EYES AFTER 100ft MADISON DIGITAL
FLAT-PANEL CABLE, 28 AWG (DATA RATE = 350Mbps)
MAX3815 toc07
EQUALIZER EYES AFTER 3ft CABLE
(DATA RATE = 1.65Gbps)
MAX3815 toc08
350mV/div
350mV/div
1ns/div
TOTAL JITTER vs. POWER-SUPPLY
NOISE FREQUENCY (DATA RATE = 1.65Gbps)
180
NOISE AMPLITUDE: 200mVP-P
170 DATA THROUGH 100ft MADISON DIGITAL
FLAT-PANEL CABLE, 28AWG
160
150
140
130
120
110
100
1
10 100 1000 10,000 100,000
FREQUENCY (kHz)
200ps/div
DETERMINISTIC JITTER vs. CABLE LENGTH
(TENSOLITE TWIN-AX 28 AWG)
0.6
1.65Gbps
0.5
800Mbps
0.4
250Mbps
NO EQ
0.3
0.2
WITH
MAX3815 EQ
0.1
0
0
50
100
150
200
CABLE LENGTH (ft)
JITTER vs. DATA RATE AFTER 205ft CABLE
WITH 40dB SKIN-EFFECT LOSS AT 825MHz
120
GORE 89 CABLE
100
RESIDUAL JITTER =
DJ + 14.2 x RJ
80
60
40
20
DETERMINISTIC JITTER
0
250 450 650 850 1050 1250 1450 1650
DATA RATE (Mbps)
RESIDUAL JITTER vs. SIGNAL AMPLITUDE
INPUT TO CABLE (DATA RATE = 1.65Gbps)
120
205ft OF GORE 89 CABLE WITH 40dB SKIN-
EFFECT LOSS AT 825MHz
110 RESIDUAL JITTER = DJ + 14.2 X RJ
100
90
80
70
60
0.6
0.8
1.0
1.2
1.4
DIFFERENTIAL AMPLITUDE (mVP-P)
4 _______________________________________________________________________________________
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