Datasheet
_______________________________________________________________________________________ 3
MAX3815A
TMDS Digital Video Equalizer for
HDMI/DVI Cables
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +3.5V, T
A
= 0°C to +70°C. Typical values are at V
CC
= +3.3V, external terminations = 50Ω ±1%, MAX3815A in
automatic equalization mode (EQCONTROL = GND), TMDS rate = 250Mbps to 2.25Gbps, T
A
= +25°C, unless otherwise noted.)
Note 1: AC specifications are guaranteed by design and characterization.
Note 2: Cable input swing is 800mV to 1200mV differential peak-to-peak. Residual output jitter is defined as peak-to-peak jitter,
both deterministic plus random, as measured using an oscilloscope histogram with 5000 hits. Source jitter subtracted.
Note 3: Test pattern is a 2
7
- 1 PRBS + 20 ones + 2
7
- 1 PRBS (inverted) + 20 zeros.
Typical Operating Characteristics
(Typical values are at V
CC
= +3.3V, T
A
= +25°C, data pattern = 2
7
- 1 PRBS + 20 ones + 2
7
- 1 PRBS (inverted) + 20 zeros, equalizer
in automatic mode, cable launch amplitude 1V
P-P
differential, unless otherwise noted.)
SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
MAX3815A toc02
AMBIENT TEMPERATURE (°C)
SUPPLY CURRENT (mA)
605030 402010
160
170
180
190
200
210
220
230
240
250
150
0 70
OUTLEVEL = OPEN, EQCONTROL = V
CC
,
CLOCK SIGNAL ACTIVE
TMDS SOURCE DC-COUPLED TO MAX3815A
INPUT (NOMINAL AMPLITUDE)
TMDS SOURCE AC-COUPLED TO MAX3815A
INPUT RETURN LOSS vs. FREQUENCY
MAX3815A toc02
FREQUENCY (MHz)
GAIN (dB)
25002000500 1000 1500
-35
-30
-25
-20
-15
-10
-5
0
-40
0 3000
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Common-Mode Output Voltage
50W load, each side to V
CC
,
OUTLEVEL = HIGH
V
CC
-
0.25
V
Rise/Fall Time (Note 1) 20% to 80% 80 160 ps
LVTTL CONTROL AND STATUS INTERFACE
LVTTL Input High Voltage V
IH
2.0 V
LVTTL Input Low Voltage V
IL
0.8 V
LVTTL Input High Current V
IH(MIN)
< V
IN
< V
CC
±50 µA
LVTTL Input Low Current GND < V
IN
< V
IL(MAX)
-100 µA
Open-Collector Output High
Voltage
R
LOAD
≥ 10kW to V
CC
2.4 V
Open-Collector Output Low
Voltage
R
LOAD
≥ 2kW to V
CC
0.4 V
Open-Collector Output Sink
Current
5 mA
OUTLEVEL Input Open-State
Current Tolerance
±5 µA