Adaptive Equalizer for
Video Over Twisted Pair
Typical Operating Characteristics
(VCC = 5V, RL = high impedance, fSC = 3.58MHz, Category 5e cable with active driver, TA = +25°C.)
MULTIBURST (0.5m CABLE)
MAX7474 toc01
MULTIBURST (300m CABLE)
MAX7474 toc02
75% COLOR BAR VECTOR DIAGRAM
(0.5m CABLE)
MAX7474 toc03
VINP-VINN
200mV/div
VINP-VINN
200mV/div
VOUT
200mV/div
VOUT
200mV/div
10µs/div
75% COLOR BAR VECTOR DIAGRAM
(300m CABLE)
MAX7474 toc04
2T RESPONSE (0.5m CABLE)
MAX7474 toc07
10µs/div
DIFFERENTIAL GAIN AND PHASE
(0.5m CABLE)
0.4
0.2
0
-0.2
-0.4
0.4
0.2
0
-0.2
-0.4
0
1
2
3
4
5
MODULATED STEP
2T RESPONSE (300m CABLE)
MAX7474 toc08
DIFFERENTIAL GAIN AND PHASE
(300m CABLE)
0.4
0.2
0
-0.2
-0.4
0.4
0.2
0
-0.2
-0.4
0
1
2
3
4
5
MODULATED STEP
12.5T RESPONSE (0.5m CABLE)
MAX7474 toc09
VINP-VINN
200mV/div
VINP-VINN
200mV/div
VINP-VINN
200mV/div
VOUT
200mV/div
VOUT
200mV/div
200ns/div
200ns/div
500ns/div
4 _______________________________________________________________________________________
VOUT
200mV/div