MAX9546_07 datasheet(4/12 Pages) MAXIM

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Differential Video Interface Chipset

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PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Large-Signal Bandwidth

VIN = 1VP-P, -3dB

MHz

Large-Signal Flatness

VIN = 1VP-P, ±0.5dB

MHz

Slew Rate

V/µs

Settling Time (0.1%)

tSETTLING

400

Power-Supply Rejection Ratio

PSRR

f = 100kHz, 100mVP-P ripple

Common-Mode Rejection Ratio

CMRR

f = 100kHz, 100mVP-P ripple

LOS Timeout Period

tLOS

760

µs

AC ELECTRICAL CHARACTERISTICS—MAX9547

(VCC = +8.5V, GND = 0V, RL = 75Ω, ZZT = 75Ω, CL = 50pF, TA = -40°C to +85°C, Typical values are at TA = +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Differential Gain

3.8

Differential Phase

0.6

degrees

Signal-to-Noise Ratio

SNR

5MHz lowpass, 100kHz highpass,

VIN = 1VP-P

2T Pulse-to-Bar Rating

2T = 250ns, bar time is 18µs, the beginning

3.5% and the ending 3.5% of the bar time is

ignored

0.2

2T Pulse Response

2T = 250ns

0.25

Group Delay

D/dt

At 3.58MHz

Horizontal Tilt

(Note 11)

0.12

Vertical Tilt

(Note 11)

0.26

AC ELECTRICAL CHARACTERISTICS—MAX9546 Driving MAX9547

(VCC = +8.5V, RL = 220Ω across OUT+ and OUT-, RL = 75Ω (MAX9547), ZZT = 75Ω, TA = -40°C to +85°C. Typical values are at TA =

+25°C, unless otherwise noted.) (Note 2)

Note 2:

All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 3:

Defined as differential output to single-ended input.

Note 4:

Input is AC-coupled.

Note 5:

The RC time constant (3Hz) formed by the source resistance (RS) and coupling capacitor (CIN) is usually used for lead

compensation of the active clamp. The source resistance is 400Ω max. The clamp should remain stable in this condition.

Note 6:

Differential mode is measured as (OUT+ - OUT-). Common mode is measured as OUT+ + OUT-

Note 7:

A fault is when the outputs both sink and source current and the amount of extra current sink or source is greater than 3mA.

Note 8:

Common-mode balance is measured as 20log((OUT+ - OUT-) / (OUT+ + OUT-)).

Note 9:

Ground between MAX9546 and MAX9547 can be a ±2V difference.

Note 10: A loss-of-signal is when the input video signal of the MAX9547 does not change (cross 100mV level from sync tip) for 10

video lines.

Note 11: Input capacitor for this test is 0.33µF.

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