MAX9155 데이터 시트보기 (PDF) - Maxim Integrated

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MAX9155

Low-Jitter, Low-Noise LVDS Repeater in an SC70 Package

Maxim Integrated 

Low-Jitter, Low-Noise LVDS

Repeater in an SC70 Package

Typical Operating Characteristics (continued)

(VCC = +3.3V, RL = 100Ω ±1%, CL = 10pF, |VID| = 0.2V, VCM = 1.2V, TA = +25°C, unless otherwise noted. Signal generator output:

frequency = 100MHz, 50% duty cycle, RO = 50Ω, tR = 1.5ns, and tF = 1.5ns (0% to 100%), unless otherwise noted.)

TRANSITION TIME

VS. TEMPERATURE

800

750

700

650

600

tTLH, tTHL

550

500

450

400

-40 -15

10

35

60

85

TEMPERATURE (°C)

DIFFERENTIAL OUTPUT VOLTAGE

VS. LOAD RESISTOR

600

500

400

300

200

100

0

25

50

75 100 125 150

LOAD RESISTOR (Ω)

Pin Description

PIN

NAME

FUNCTION

1

OUT-

Inverting LVDS Output

2

GND

Ground

3

IN-

Inverting LVDS Input

4

IN+

Noninverting LVDS Input

5

VCC

Power Supply. Bypass VCC to GND

with 0.01µF ceramic capacitor.

6

OUT+

Noninverting LVDS Output

Table 1. Function Table for LVDS Fail-Safe

Input (Figure 2)

INPUT, VID

> 50mV

OUTPUT, VOD

High

< -50mV

50mV > VID > -50mV

Undriven open, short, or terminated

Low

Indeterminate

High

Note: VID = (IN+ - IN-), VOD = (OUT+ - OUT-)

High = 450mV ≥ VOD ≥ 250mV

Low = -250mV ≥ VOD ≥ -450mV

Detailed Description

The LVDS interface standard is a signaling method

intended for point-to-point communication over a con-

trolled-impedance medium, as defined by the ANSI/

TIA/EIA-644 and IEEE 1596.3 standards. The LVDS

standard uses a lower voltage swing than other com-

mon communication standards, achieving higher data

rates with reduced power consumption while reducing

EMI emissions and system susceptibility to noise.

The MAX9155 is a 200Mbps LVDS repeater intended

for high-speed, point-to-point, low-power applications.

The MAX9155 accepts an LVDS input and reproduces

an LVDS signal at the output. This device is capable of

detecting differential signals as low as 50mV and as

high as 1.2V within a 0 to 2.4V input voltage range. The

LVDS standard specifies an input voltage range of 0 to

2.4V referenced to ground.

Fail-Safe

Fail-safe is a feature that puts the output in a known

logic state (differential high) under certain fault condi-

tions. The MAX9155 outputs are differential high when

the inputs are undriven and open, terminated, or shorted

(Table 1).

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