MAXIM MAX9152 Technical data

General Description

The MAX9152 2 x 2 crosspoint switch is designed for
applications requiring high speed, low power, and low­noise signal distribution. This device includes two
LVDS/LVPECL inputs, two LVDS outputs, and two logic
inputs that set the internal connections between differ­ential inputs and outputs.

The MAX9152 can be programmed to connect any
input to either or both outputs, allowing it to be used in
the following configurations: 2 ✕2 crosspoint switch, 2:1
mux, 1:2 demux, 1:2 splitter, or dual repeater. This flexi­bility makes the MAX9152 ideal for protection switching
in fault-tolerant systems, loopback switching for diag­nostics, fanout buffering for clock/data distribution, and
signal regeneration for communication over extended
distances.

Ultra-low 120ps

PK-PK

(max) PRBS jitter ensures reliable
communications in high-speed links that are highly sen­sitive to timing error, especially those incorporating
clock-and-data recovery, or serializers and deserializ­ers. The high-speed switching performance guarantees
an 800Mbps data rate and less than 50ps (max) skew
between channels.

LVDS inputs and outputs are compatible with the
TIA/EIA-644 LVDS standard. The LVDS inputs are
designed to also accept LVPECL signals directly, and
PECL signals with an attenuation network. The LVDS
outputs are designed to drive 75Ω or 100Ω loads, and
feature a selectable differential output resistance to
minimize reflections.

The MAX9152 is available in 16-pin TSSOP and SO
packages, and consumes only 109mW while operating
from a single +3.3V supply over the -40°C to +85°C
temperature range.

Applications

Cell Phone Base Stations
Add/Drop Muxes
Digital Crossconnects
DSLAMs
Network Switches/Routers
Protection Switching
Loopback Diagnostics
Clock/Data Distribution
Cable Repeaters

Features

♦ Pin-Programmable Configuration

2 x 2 Crosspoint Switch
2:1 Mux
1:2 Demux
1:2 Splitter
Dual Repeater

♦ Ultra-Low 120ps

PK-PK

(max) Jitter with 800Mbps,

PRBS = 2

23

-1 Data Pattern

♦ Low 50ps (max) Channel-to-Channel Skew

♦ 109mW Power Dissipation

♦ Compatible with ANSI TIA/EIA-644 LVDS Standard

♦ Inputs Accept LVDS/LVPECL Signals
♦ LVDS Output Rated for 75Ω and 100Ω Loads

♦ Pin-Programmable Differential Output Resistance

♦ Pin-Compatible Upgrade to DS90CP22

(SO Package)

♦ Available in 16-Pin TSSOP Package

(Half the Size of SO)

MAX9152

800Mbps LVDS/LVPECL-to-LVDS 2 x 2

Crosspoint Switch

________________________________________________________________ Maxim Integrated Products 1

19-2003; Rev 0; 4/01

EN0

SEL0

IN0+

IN0-

IN1+

IN1-

MAX9152

01 01

EN1

SEL1

OUT1-OUT1+OUT0-OUT0+

Functional Diagram

Ordering Information

Pin Configuration appears at end of data sheet.

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.

PART TEMP. RANGE PIN-PACKAGE

MAX9152ESE -40°C to +85°C 16 SO
MAX9152EUE -40°C to +85°C 16 TSSOP

MAX9152

800Mbps LVDS/LVPECL-to-LVDS 2 x 2
Crosspoint Switch

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= +3.0V to +3.6V, NC/RSEL = open for RL= 75Ω ±1%, NC/RSEL = high for RL= 100Ω ±1%, differential input voltage |VID| =

0.1V to V

CC

, input voltage (V

IN+

, V

IN-

) = 0 to VCC, EN_ = high, SEL0 = low, SEL1 = high, and TA= -40°C to +85°C. Typical values at

V

CC

= +3.3V, |VID| = 0.2V, input common-mode voltage VCM= 1.2V, TA= +25°C, unless otherwise noted.) (Note 1)

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_-, OUT_+, OUT_- to GND .......................-0.3V to +4.0V

EN_, SEL_, NC/RSEL to GND.....................-0.3V to (VCC+ 0.3V)

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

Continuous Power Dissipation (T

A

= +70°C)

16-Pin SO (derate 8.7mW/°C above +70°C)................696mW

16-Pin TSSOP (derate 9.4mW/°C above +70°C) .........755mW

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

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

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

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

ESD Protection

Human Body Model, IN_+, IN_-, OUT_+, OUT_-........... ±7kV

,

LVCMOS/LVTTL INPUTS (EN_, SEL_)

Input High Voltage V

Input Low Voltage V

Input High Current I

Input Low Current I

NC/RSEL INPUT

Input High Voltage V

Input Low Voltage V

Input High Current I

Input Low Current I

DIFFERENTIAL INPUTS (IN_+, IN_-)

Differential Input High Threshold V

Differential Input Low Threshold V

Input Current I

LVDS OUTPUTS (OUT_+, OUT_-)

Differential Output Impedance
(Note 2)

Differential Output Voltage V

Change in Magnitude of V
Between Complementary Output
States

Offset Common-Mode Voltage V

Change in Magnitude of V
Between Complementary Output
States

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OD

OS

IH

IL

VIN = VCC or 2.0V 0 20 µA

VIN = 0 or 0.8V -10 10 µA

VIN = VCC or 2.0V 0 20 µA

VIN = 0 or 0.8V -10 10 µA

V

= VCC or 0, V

IN+

I

IN-

V

= 3. 6 V o r 0 , V

I N +

= 0

V

C C

NC/RSEL = low or open 60 90 118

NC/RSEL = high 85 122 155

RL = 75Ω, NC/RSEL = open, Figure 1

RL = 100Ω, NC/RSEL = high, Figure 1

IN+

R

IH

IL

IH

IL

IH

IL

TH

TL

DIFF

OD

RL = 75Ω, NC/RSEL = open, Figure 1

∆V

OD

RL = 100Ω, NC/RSEL = high, Figure 1

OS

RL = 75Ω, NC/RSEL = open, Figure 1

RL = 100Ω, NC/RSEL = high, Figure 1

RL = 75Ω, NC/RSEL = open, Figure 1

∆V

OS

RL = 100Ω, NC/RSEL = high, Figure 1

2.0 V

CC

GND 0.8 V

2.0 V

CC

GND 0.8 V

100 mV

-100 mV

= V

IN-

I N -

or 0 -1 1

CC

= 3 . 6 V or 0 ,

-1 1

280 382 470 mV

25 mV

1.150 1.430 V

25 mV

V

V

µA

Ω

MAX9152

800Mbps LVDS/LVPECL-to-LVDS 2 x 2

Crosspoint Switch

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +3.0V to +3.6V, NC/RSEL = open for RL= 75Ω ±1%, NC/RSEL = high for RL= 100Ω ±1%, differential input voltage |VID| =

0.1V to V

CC

, input voltage (V

IN+

, V

IN-

) = 0 to VCC, EN_ = high, SEL0 = low, SEL1 = high, and TA= -40°C to +85°C. Typical values at

V

CC

= +3.3V, |VID| = 0.2V, input common-mode voltage VCM= 1.2V, TA= +25°C, unless otherwise noted.) (Note 1)

AC ELECTRICAL CHARACTERISTICS

(VCC= +3.0V to +3.6V, NC/RSEL = open for RL= 75Ω ±1%, NC/RSEL = high for RL= 100Ω ±1%, CL= 5pF, differential input voltage
|V

ID

| = 0.15V to VCC, EN_ = high, SEL0 = low, SEL1 = high, differential input transition time = 0.6ns (20% to 80%), input voltage

(V

IN+

, V

IN-

) = 0 to VCC, LVCMOS/LVTTL inputs = 0 to 3V with 2ns (10% to 90%) transition times, TA= -40°C to +85°C. Typical values

at V

CC

= +3.3V, |VID| = 0.2V, VCM= 1.2V, TA= +25°C, unless otherwise noted.) (Notes 3, 4)

Output Short-Circuit Current I

Both Output Short-Circuit Current I

Output High-Z Current I

Power-Off Output Current I

SUPPLY CURRENT

Supply Current I

High-Z Supply Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OS

VID = +100mV, V
open

VID = -100mV, V

= 0, other output

OUT_+

= 0,

OUT_-

-12 -20 mA

other output open

OSB

, I

OZ+

OZ-

OFF+, IOFF-

CC

CCZ

VID = +100mV, V

VID = -100mV, V

Disabled, V
V

OUT_-

V

CC

V

OUT_-

= VCC or 0

= 0, V

= 3.6V or 0

OUT_+

OUT_+

RL = 75Ω, CL = 5pF, enabled, quiescent,
Figure 5

RL = 100Ω, CL = 5pF, enabled, quiescent,
Figure 5

RL = 75Ω, CL = 5pF, enabled, switching
at 400MHz (800Mbps), Figure 5 (Note 2)

RL = 100Ω, CL = 5pF, enabled, switching
at 400MHz (800Mbps), Figure 5 (Note 2)

Disabled 15 25 mA

= 0, V

OUT_+

= 0, V

OUT_+

= VCC or 0,

= 3.6V or 0,

OUT_-

OUT_-

= 0

= 0

-12 -20 mA

-1 1 µA

-1 1 µA

38 55

33 50

58 70

52 65

mA

Input to SEL Setup Time (Note 5) t

Input to SEL Hold Time (Note 5) t

SEL to Switched Output t

Disable Time High to Z t

Disable Time Low to Z t

Enable Time Z to High t

Enable Time Z to Low t

Propagation Low-to-High Delay t

Propagation High-to-Low Delay t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SET

HOLD

SWITCH

PHZ

PLZ

PZH

PZL

PLHD

PHLD

Figures 2, 3 0.4 ns

Figures 2, 3 0.6 ns

Figures 2, 3 1.8 2.5 3.5 ns

Figure 4 3.8 ns

Figure 4 3.8 ns

Figure 4 3.2 ns

Figure 4 3.2 ns

Figures 5, 6 1.7 2.3 3.4

V

= +3.3V, TA = +25°C; Figures 5, 6 2.0 2.3 2.9

CC

Figures 5, 6 1.7 2.3 3.4

VCC = +3.3V, TA = +25°C; Figures 5, 6 2.0 2.3 2.9

ns

ns

DIFFERENTIAL OUTPUT EYE PATTERN

IN 1:2 SPLITTER MODE AT 800Mbps

CONDITIONS: 3.3V, PRBS = 223 -1 DATA PATTERN,
|V

ID

| = 200mV, VCM = +1.2V
HORIZONTAL SCALE = 200ps/div
VERTICAL SCALE = 100mV/div

MAX9152 toc01

150

250

350

450

550

650

50 10075 125 150 175 200

DIFFERENTIAL

OUTPUT VOLTAGE vs. LOAD

MAX9152 toc02

LOAD RESISTOR (Ω)

DIFFERENTIAL OUTPUT VOLTAGE (mV)

NC/RSEL = LOW OR OPEN

NC/RSEL = HIGH

30

32

36

34

38

40

100 300200 400 500 600 700 800

SUPPLY CURRENT vs. DATA RATE

MAX9152 toc03

DATA RATE (Mbps)

SUPPLY CURRENT (mA)

Typical Operating Characteristics

(VCC= +3.3V, RL= 100Ω, NC/RSEL = high, CL= 5pF, input transition time = 600ps (20% to 80%), VID= 200mV, PRBS = 223- 1 data
pattern, VCM= +1.2V, TA= +25°C, unless otherwise noted.)

MAX9152

800Mbps LVDS/LVPECL-to-LVDS 2 x 2
Crosspoint Switch

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS (continued)

(VCC= +3.0V to +3.6V, NC/RSEL = open for RL= 75Ω ±1%, NC/RSEL = high for RL= 100Ω ±1%, CL= 5pF, differential input voltage
|V

ID

| = 0.15V to VCC, EN_ = high, SEL0 = low, SEL1 = high, differential input transition time = 0.6ns (20% to 80%), input voltage

(V

IN+

, V

IN-

) = 0 to VCC, LVCMOS/LVTTL inputs = 0 to 3V with 2ns (10% to 90%) transition times, TA= -40°C to +85°C. Typical values

at V

CC

= +3.3V, |VID| = 0.2V, VCM= 1.2V, TA= +25°C, unless otherwise noted.) (Notes 3, 4)

Note 1: 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, VID, VOD, and ∆VOD.

Note 2: Guaranteed by design and characterization, not production tested.
Note 3: AC parameters are guaranteed by design and characterization.
Note 4: C

L

includes scope probe and test jig capacitance.

Note 5: t

SET

and t

HOLD

time specify that data must be in a stable state before and after the SEL transition.

Note 6: t

SKEW

is the magnitude difference of differential propagation delay over rated conditions; t

SKEW

= |t

PHLD

- t

PLHD

|.

Note 7: Specification includes test equipment jitter.

Pulse Skew |t

Output Channel-to-Channel Skew t

Output Low-to-High Transition
Time (20% to 80%)

Output High-to-Low Transition
Time (20% to 80%)

LVDS Data Path Peak-to-Peak
Jitter (Note 7)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

-t

PLHD

| (Note 6) t

PHLD

SKEW

CCS

t

LHT

t

HLT

Figures 5, 6 25 90 ps

Figures 5, 7 20 50 ps

Figures 5, 6 160 270 480 ps

Figures 5, 6 160 270 480 ps

VID = 200mV, VCM = 1.2V, 50% duty
cycle, 800Mbps, input transition time =

t

JIT

600ps (20% to 80%)

V

= 200mV, VCM = 1.2V, PRBS = 2

ID

23

- 1

data pattern, 800Mbps, input transition

10 30

65 120

time = 600ps (20% to 80%)

ps