MAXIM MAX9181 Technical data

General Description

The MAX9181 is an LVPECL-to-LVDS level translator
that accepts a single LVPECL input and translates it to
a single LVDS output. It is ideal for interfacing between
LVPECL and LVDS interfaces in systems that require
minimum jitter, noise, power, and space.

Ultra-low, 23ps

P-P

added deterministic jitter and

0.6ps

RMS

added random jitter ensure reliable commu­nication in high-speed links that are highly sensitive to
timing errors, especially those incorporating clock-and­data recovery, PLLs, serializers, or deserializers. The
MAX9181’s switching performance guarantees a
400Mbps data rate, but minimizes radiated noise by
guaranteeing 0.5ns minimum output transition time.

The MAX9181 operates from a single 3.3V supply and
consumes only 10mA supply current over a -40°C to
+85°C temperature range. It is available in a tiny 6-pin
SC70 package (half the size of a SOT23). Refer to the
MAX9180 data sheet for a low-jitter, low-noise LVDS
repeater in an SC70 package.

Applications

Digital Cross-Connects
Add/Drop Muxes
Network Switches/Routers
Cellular Phone Base Stations
DSLAMs
Multidrop Buses

Features

♦ Tiny SC70 Package

♦ Ultra-Low Jitter

23ps

P-P

Added Deterministic Jitter

(2

23

- 1 PRBS)

0.6ps

RMS

Added Random Jitter

♦ 0.5ns (min) Transition Time Minimizes Radiated

Noise

♦ 400Mbps Guaranteed Data Rate

♦ Low 10mA Supply Current

♦ Conforms to ANSI/EIA/TIA-644 LVDS Standard

♦ High-Impedance Inputs and Outputs in

Power-Down Mode

MAX9181

Low-Jitter, Low-Noise LVPECL-to-LVDS Level

Translator in an SC70 Package

________________________________________________________________ Maxim Integrated Products 1

GND

IN+IN-

16OUT+

5V

CC

OUT-

MAX9181

SC70

TOP VIEW

2

34

Pin Configuration

19-2415; Rev 1; 2/04

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART

TEMP RANGE

PIN -

TOP

M ARK

MAX9181EXT-T

6 SC70-6 ABI

Typical Operating Circuit

PA C K A G E

-40°C to +85°C

3.3V

LVPECL
DRIVER

IN+

IN-

MAX9181

V

GND

CC

OUT+

LVDS

OUT-

SIGNALS

MAX9181

Low-Jitter, Low-Noise LVPECL-to-LVDS Level
Translator in an SC70 Package

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

VCCto GND...........................................................-0.3V to +4.0V

IN+, IN- to GND.....................................................-0.3V to +4.0V

OUT+, OUT- to GND .............................................-0.3V to +4.0V

Short-Circuit Duration (OUT+, OUT-).........................Continuous

Continuous Power Dissipation (T

A

= +70°C)

6-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature......................................................+150°C

ESD Protection

Human Body Model, IN+, IN-, OUT+, OUT-....................±8kV

Lead Temperature (soldering, 10s) .................................+300°C

DC ELECTRICAL CHARACTERISTICS

(VCC= 3.0V to 3.6V, RL= 100Ω ±1%, |V

ID

|

= 0.05V to VCC, VCM= |VID/ 2|to VCC- |VID/ 2|, TA= -40°C to +85°C, unless otherwise

noted. Typical values are at V

CC

= 3.3V, TA= +25°C.) (Notes 1, 2)

PARAMETER

CONDITIONS

U N I T S

LVPECL INPUT

Differential Input High Threshold

V

TH

750mV

Differential Input Low Threshold V

TL

-50 -7 mV

Input Resistor R

IN

Figure 1 360

kΩ

IN+ = 3.6V, IN- = 0V -10

Input Current

IN+ = 0V, IN- = 3.6V -10

µA

IN+ = 3.6V, IN- = 0V -10

Power-Off Input Current

IN+ = 0V, IN- = 3.6V -10

µA

LVDS OUTPUT

Differential Output Voltage V

OD

Figure 2 250

mV

Differential Output Voltage ∆V

OD

Figure 2

25 mV

Offset (Common-Mode) Voltage

V

OS

Figure 2

V

Change in VOS for
Complementary Output States

∆V

OS

Figure 2

25 mV

Output High Voltage V

OH

1.6 V

Output Low Voltage V

OL

0.9

V

Differential Output Voltage V

OD+

IN+, IN- open

mV

-10

Power-Off Output Leakage
Current

O U T- = 3.6V , other outp ut op en -10

µA

Differential Output Resistance

VCC = 3.6V or 0V 100

Ω

VID = 50mV, OUT+ = GND -5 -15

Output Short Current I

SC

VID = -50mV, OUT- = GND -5 -15

mA

POWER SUPPLY

Supply Current I

CC

10 15

mA

SYMBOL

I

, I

IN+

IN-

, I

IN-

VCC = 0V,

Figure 1

I

IN+

MIN TYP MAX

1328

+2.7 +10
+2.7 +10
+2.7 +10
+2.7 +10

IO

OFF

RO

DIFF

VCC = 0V

O U T+ = 3.6V , other outp ut op en

360 450

0.008

1.125 1.25 1.375

+250 +360 +450

0.005

1.44

1.08

+0.02 +10
+0.02 +10

260 400

MAX9181

Low-Jitter, Low-Noise LVPECL-to-LVDS Level

Translator in an SC70 Package

_______________________________________________________________________________________ 3

Note 1: All devices are 100% tested at TA= +25°C. Limits over temperature are guaranteed by design and characterization.
Note 2: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground

except V

TH

, VTL, VOD, and ∆VOD.

Note 3: Guaranteed by design and characterization.
Note 4: Signal generator output (unless otherwise noted): frequency = 200MHz, 50% duty cycle, R

O

= 50Ω, tR= 1.5ns, and tF=

1.5ns (0% to 100%).

Note 5: C

L

includes scope probe and test jig capacitance.

Note 6: Signal generator output for t

DJ

: VOD= 150mV, VOS= 1.2V, tDJincludes pulse (duty cycle) skew.

Note 7: Signal generator output for t

RJ

: VOD= 150mV, VOS= 1.2V.

Note 8: t

SKPP1

is the magnitude difference of any differential propagation delays between devices operating over rated conditions

at the same supply voltage, input common-mode voltage, and ambient temperature.

Note 9: t

SKPP2

is the magnitude difference of any differential propagation delays between devices operating over rated conditions.

Note 10: Device meets V

OD

DC specifications and AC specifications while operating at f

MAX

.

Note 11: Jitter added to the input signal.

AC ELECTRICAL CHARACTERISTICS

(VCC= 3.0V to 3.6V, RL= 100Ω ±1%, CL= 10pF, |V

ID

|

= 0.15V to VCC, VCM= |VID/ 2|to VCC- |VID/ 2|, TA= -40°C to +85°C, unless

otherwise noted. Typical values are at V

CC

= 3.3V, TA= +25°C.) (Notes 3, 4, 5) (Figures 3, 4)

PARAMETER

CONDITIONS

U N I T S

Differential Propagation Delay High
to Low

1.3 2.0 2.8 ns

Differential Propagation Delay Low to
High

1.3 2.0 2.8 ns

Added Deterministic Jitter t

DJ

400Mbps 223 - 1 PRBS data pattern
(Notes 6, 11)

23

ps

P-P

Added Random Jitter t

RJ

fIN = 200MHz (Notes 7, 11) 0.6 2.9

ps

RMS

Differential Part-to-Part Skew

(Note 8)

0.6 ns

Differential Part-to-Part Skew

(Note 9) 1.5 ns

Switching Supply Current

18 mA

Rise Time t

TLH

0.5

1.0 ns

Fall Time t

THL

0.5

1.0 ns

Input Frequency f

MAX

(Note 10) 200

MHz

SYMBOL

MIN TYP MAX

t

PHLD

t

PLHD

t

SKPP1

t

SKPP2

I

CCSW

0.16

12.2

0.67

0.66

100