MAX3815A Просмотр технического описания (PDF) - Maxim Integrated

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MAX3815A

TMDS Digital Video Equalizer for HDMI/DVI Cables

Maxim Integrated 

TMDS Digital Video Equalizer for

HDMI/DVI Cables

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +3.0V to +3.5V, TA = 0°C to +70°C. Typical values are at VCC = +3.3V, external terminations = 50Ω ±1%, MAX3815A in

automatic equalization mode (EQCONTROL = GND), TMDS rate = 250Mbps to 2.25Gbps, TA = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Common-Mode Output Voltage

50W load, each side to VCC,

OUTLEVEL = HIGH

VCC -

0.25

V

Rise/Fall Time (Note 1)

20% to 80%

LVTTL CONTROL AND STATUS INTERFACE

LVTTL Input High Voltage

VIH

LVTTL Input Low Voltage

VIL

LVTTL Input High Current

VIH(MIN) < VIN < VCC

LVTTL Input Low Current

GND < VIN < VIL(MAX)

80

160

ps

2.0

V

0.8

V

±50

µA

-100

µA

Open-Collector Output High

Voltage

RLOAD ≥ 10kW to VCC

2.4

V

Open-Collector Output Low

Voltage

RLOAD ≥ 2kW to VCC

0.4

V

Open-Collector Output Sink

Current

5

mA

OUTLEVEL Input Open-State

Current Tolerance

±5

µA

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 27 - 1 PRBS + 20 ones + 27 - 1 PRBS (inverted) + 20 zeros.

Typical Operating Characteristics

(Typical values are at VCC = +3.3V, TA = +25°C, data pattern = 27 - 1 PRBS + 20 ones + 27 - 1 PRBS (inverted) + 20 zeros, equalizer

in automatic mode, cable launch amplitude 1VP-P differential, unless otherwise noted.)

SUPPLY CURRENT

vs. AMBIENT TEMPERATURE

250

OUTLEVEL = OPEN, EQCONTROL = VCC,

240 CLOCK SIGNAL ACTIVE

230

220

210

200

TMDS SOURCE DC-COUPLED TO MAX3815A

190

INPUT (NOMINAL AMPLITUDE)

180

170

160 TMDS SOURCE AC-COUPLED TO MAX3815A

150

0

10 20 30 40 50 60 70

AMBIENT TEMPERATURE (°C)

INPUT RETURN LOSS vs. FREQUENCY

0

-5

-10

-15

-20

-25

-30

-35

-40

0

500 1000 1500 2000 2500 3000

FREQUENCY (MHz)

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