Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLogic ICsLogic IC - Switch Crosspoint switch Single supply TSSOP 16

General Description

The MAX9152 2 x 2 crosspoint switch is designed for

applications requiring high speed, low power, and low-

noise signal distribution. This device includes two

LVDS/LVPECL inputs, two LVDS outputs, and two logic

inputs that set the internal connections between differ-

ential 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 flexi-

bility makes the MAX9152 ideal for protection switching

in fault-tolerant systems, loopback switching for diag-

nostics, 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 sen-

sitive to timing error, especially those incorporating

clock-and-data recovery, or serializers and deserializ-

ers. 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

-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

PART TEMP. RANGE PIN-PACKAGE

MAX9152ESE -40°C to +85°C 16 SO

MAX9152EUE -40°C to +85°C 16 TSSOP

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.

Summary of content (12 pages)

PAGE 1
9-2003; Rev 0; 4/01 800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch 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.
PAGE 2
MAX9152 800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch ABSOLUTE MAXIMUM RATINGS 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 VCC to GND ...........................................
PAGE 3
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch (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 VCC, input voltage (VIN+, VIN-) = 0 to VCC, EN_ = high, SEL0 = low, SEL1 = high, and TA = -40°C to +85°C. Typical values at VCC = +3.3V, |VID| = 0.2V, input common-mode voltage VCM = 1.2V, TA = +25°C, unless otherwise noted.
PAGE 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 |VID| = 0.15V to VCC, EN_ = high, SEL0 = low, SEL1 = high, differential input transition time = 0.6ns (20% to 80%), input voltage (VIN+, VIN-) = 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 VCC = +3.3V, |VID| = 0.2V, VCM = 1.2V, TA = +25°C, unless otherwise noted.
PAGE 5
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch VID = 0.2V VID = 0.8V 40 70 80 PEAK-TO-PEAK JITTER (ps) PEAK-TO-PEAK JITTER (ps) 60 90 MAX9152 toc05 80 MAX9152 toc04 70 VID = 0.2V 60 50 VID = 0.8V 40 300 400 500 600 700 800 100 200 DATA RATE (Mbps) 300 50 400 500 600 700 100 800 200 300 PEAK-TO-PEAK OUTPUT JITTER AT VCM = +0.4V vs. DATA RATE 600 700 800 PEAK-TO-PEAK OUTPUT JITTER AT VCM = +1.6V vs. DATA RATE 80 PEAK-TO-PEAK JITTER (ps) 70 500 VID = 0.
PAGE 6
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch MAX9152 Pin Description PIN NAME 1, 2 SEL1, SEL0 LVCMOS/LVTTL Logic Inputs. Allow the switch to be configured as a mux, repeater, or splitter. 3, 4 IN0+, IN0- LVDS/LVPECL Differential Input 0 5 VCC 6, 7 IN1+, IN1- LVDS/LVPECL Differential Input 1 8 NC/RSEL Logic Input. Selects differential output resistance. Set NC/RSEL to open or low when RL = 75Ω, set to high when RL = 100Ω.
PAGE 7
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch MAX9152 IN0+ VID = 0 IN0IN1VID = 0 IN1+ 1.5V SEL_ tSET tHOLD OUT_+ IN0 IN1 OUT_tSWITCH EN0 = EN1 = HIGH VID = (VIN_+) − (VIN_-) Figure 2. Input to Rising Edge Select Setup, Hold, and Mux Switch Timing Diagram IN0+ VID = 0 IN0IN1VID = 0 IN1+ SEL_ 1.5V tSET tHOLD OUT_IN1 IN0 OUT_+ tSWITCH EN0 = EN1 = HIGH VID = (VIN_+) − (VIN_-) Figure 3.
PAGE 8
MAX9152 800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch or EN1 low puts the corresponding driver output into a high-impedance state (the differential output resistance also becomes high impedance). Table 1. Input/Output Function Table OUT_+ CL SEL0 SEL1 OUT0 OUT1 MODE L L IN0 IN0 1:2 splitter L H IN0 IN1 Repeater H L IN1 IN0 Switch H H IN1 IN1 1:2 splitter Applications Information RL/2 IN_+ Unused Differential Inputs IN_PULSE GENERATOR +1.
PAGE 9
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch MAX9152 VIN_VID = 0 VIN_+ VID = 0 tPHLD tPLHD IN0 OUT0 IN1 OUT1 VOUT_VOD = 0 VOD = 0 VOUT_+ 80% 50% 20% +VOD 80% VOD = 0 50% tLHT VOD = 0 20% 2 x 2 CROSSPOINT -VOD IN0 tHLT OUT0 OR OUT1 VID = (VIN_+) - (VIN_-) IN1 VOD = (VOUT_+) - (VOUT_-) tPLHD AND tPHLD ARE MEASURED FOR ANY COMBINATION OF SEL0 AND SEL1. 2:1 MUX Figure 6.
PAGE 10
MAX9152 800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch Chip Information 5V 82Ω 5V TRANSISTOR COUNT: 880 PROCESS: CMOS 82Ω 50Ω 10kΩ PECL 3.3V 50Ω 1/2 MAX9152 100Ω IN_+ IN_33Ω 33Ω Figure 9.
PAGE 11
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch TSSOP.
PAGE 12
800Mbps LVDS/LVPECL-to-LVDS 2 x 2 Crosspoint Switch SOICN.EPS MAX9152 Package Information (continued) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.