MAX9129EGE+

MAX9129EGE+ Datasheet

MAX9129

Part	Datasheet
MAX9129EGE+	MAX9129EGE+ (pdf)

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MAX9129 Quad Bus LVDS Driver with Flow-Through Pinout The MAX9129 is a quad bus low-voltage differential signaling BLVDS driver with flow-through pinout. This device is designed to drive a heavily loaded multipoint bus with controlled transition times 1ns 0% to 100% minimum for reduced reflections. The MAX9129 accepts four LVTTL/LVCMOS input levels and translates them to output levels of 250mV to 450mV standard LVDS levels into a load at speeds up to 200Mbps 100MHz . The power-on reset ensures that all four outputs are disabled and high impedance during power up and power down. The outputs can be set to high impedance by two enable inputs, EN and EN, thus dropping the device to a low-power state of 11mW. The enables are common to all four drivers. The flow-through pinout simplifies PC board layout and reduces crosstalk by keeping the LVTTL/LVCMOS inputs and BLVDS outputs separated. The MAX9129 operates from a single +3.3V supply and is specified for operation from -40°C to +85°C. It is available in 16-pin QFN and TSSOP packages. Refer to the MAX9121 data sheet for a quad LVDS line receiver with flow-through pinout. Cell Phone Base Stations Add/Drop Muxes Digital Cross-Connects DSLAMs Network Switches/Routers Backplane Interconnect Clock Distribution o Drive LVDS Levels into a Load o 1ns 0% to 100% Minimum Transition Time Reduces Reflections o Guaranteed 200Mbps 100MHz Data Rate o Enable Pins for High-Impedance Output o High-Impedance Outputs when Powered Off o Glitch-Free Power-Up and Power-Down o Hot Swappable o Flow-Through Pinout o Available in Tiny QFN Package 50% Smaller than TSSOP o Single +3.3V Supply PART MAX9129EGE MAX9129EUE Ordering Information TEMP. RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 16 QFN 16 TSSOP Functional Diagram appears at end of data sheet. Pin Configurations appear at end of data sheet. Typical Applications Circuit CARD 1A MAX9129 MAX9121 CARD 10A MAX9129 MAX9121 CARD 1B MAX9129 MAX9121 CARD 2B MAX9129 MAX9121 BUS A Rt BUS B MULTIPOINT FULL-DUPLEX TRANSMIT AND RECEIVE BUS = TERMINATION RESISTOR Rt Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at MAX9129 Quad Bus LVDS Driver with Flow-Through Pinout ABSOLUTE MAXIMUM RATINGS VCC to GND to +4.0V IN_, EN, EN to VCC + 0.3V OUT_+, OUT_- to +4.0V Short-Circuit Duration OUT_+, OUT_- .....................Continuous Power Dissipation TA = +70°C 16-Pin QFN derate 18.5mW/°C above +70°C .........1481mW 16-Pin TSSOP derate 9.4mW/°C above +70°C .........755mW Storage Temperature Range .............................-65°C to +150°C Maximum Junction Temperature Operating Temperature Range ...........................-40°C to +85°C ESD Protection Human Body Model, OUT_+, OUT_- ...............................±8kV Lead Temperature soldering, 10s .................................+300°C 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. DC ELECTRICAL CHARACTERISTICS VCC = +3.0V to +3.6V, RL = ±1%, EN = high, EN = low, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C. Notes 1, 2 PARAMETER BLVDS OUTPUTS OUT_+, OUT_- Differential Output Voltage Change in Magnitude of VOD Between Complementary Output States Figure 1 Figure 1 CONDITIONS MIN TYP MAX UNITS 371 450 Offset Voltage Change in Magnitude of VOS Between Complementary Output States VOS Figure 1 Figure 1 Output High Voltage Output Low Voltage Differential Output Short-Circuit Current VOH VOL IOSD VOD = 0 Output Short-Circuit Current OUT_+ = 0 at IN_ = VCC or OUT_- = 0 at IN_ = 0 Output High-Impedance Current Disabled, OUT_+ = 0 or VCC, OUT_- = 0 or VCC Power-Off Output Current IOFF VCC = 0 or open, EN = EN = IN_ = 0, OUT_+ = 0 or 3.6V, OUT_- = 0 or 3.6V Output Capacitance INPUTS IN_, EN, EN High-Level Input Voltage Low-Level Input Voltage Input Current SUPPLY CURRENT Supply Current Disabled Supply Current COUT Capacitance from OUT_+ or OUT_- to GND IN_, EN, EN = 0 or VCC GND -15 ICC ICCZ RL = IN_ = VCC or 0 for all channels Disabled

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MAX9129

Quad Bus LVDS Driver with Flow-Through Pinout

The MAX9129 is a quad bus low-voltage differential signaling BLVDS driver with flow-through pinout. This device is designed to drive a heavily loaded multipoint bus with controlled transition times 1ns 0% to 100% minimum for reduced reflections. The MAX9129 accepts four LVTTL/LVCMOS input levels and translates them to output levels of 250mV to 450mV standard LVDS levels into a load at speeds up to 200Mbps 100MHz .

The power-on reset ensures that all four outputs are disabled and high impedance during power up and power down. The outputs can be set to high impedance by two enable inputs, EN and EN, thus dropping the device to a low-power state of 11mW. The enables are common to all four drivers. The flow-through pinout simplifies PC board layout and reduces crosstalk by keeping the LVTTL/LVCMOS inputs and BLVDS outputs separated.

The MAX9129 operates from a single +3.3V supply and is specified for operation from -40°C to +85°C. It is available in 16-pin QFN and TSSOP packages. Refer to the MAX9121 data sheet for a quad LVDS line receiver with flow-through pinout.

Cell Phone Base Stations Add/Drop Muxes Digital Cross-Connects DSLAMs Network Switches/Routers Backplane Interconnect Clock Distribution
o Drive LVDS Levels into a Load o 1ns 0% to 100% Minimum Transition Time

Reduces Reflections o Guaranteed 200Mbps 100MHz Data Rate o Enable Pins for High-Impedance Output o High-Impedance Outputs when Powered Off o Glitch-Free Power-Up and Power-Down o Hot Swappable o Flow-Through Pinout o Available in Tiny QFN Package 50% Smaller
than TSSOP o Single +3.3V Supply

PART MAX9129EGE MAX9129EUE
Ordering Information

TEMP. RANGE -40°C to +85°C -40°C to +85°C

PIN-PACKAGE 16 QFN 16 TSSOP

Functional Diagram appears at end of data sheet. Pin Configurations appear at end of data sheet.

Typical Applications Circuit

CARD 1A

MAX9129

MAX9121

CARD 10A

MAX9129

MAX9121

CARD 1B

MAX9129

MAX9121

CARD 2B

MAX9129

MAX9121

BUS A

Rt BUS B

MULTIPOINT FULL-DUPLEX TRANSMIT AND RECEIVE BUS
= TERMINATION

RESISTOR Rt

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at

MAX9129

Quad Bus LVDS Driver with Flow-Through Pinout

ABSOLUTE MAXIMUM RATINGS

VCC to GND to +4.0V IN_, EN, EN to VCC + 0.3V OUT_+, OUT_- to +4.0V Short-Circuit Duration OUT_+, OUT_- .....................Continuous Power Dissipation TA = +70°C
16-Pin QFN derate 18.5mW/°C above +70°C .........1481mW 16-Pin TSSOP derate 9.4mW/°C above +70°C .........755mW

Storage Temperature Range .............................-65°C to +150°C Maximum Junction Temperature Operating Temperature Range ...........................-40°C to +85°C ESD Protection

Human Body Model, OUT_+, OUT_- ...............................±8kV Lead Temperature soldering, 10s .................................+300°C

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.

DC ELECTRICAL CHARACTERISTICS

VCC = +3.0V to +3.6V, RL = ±1%, EN = high, EN = low, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = +3.3V, TA = +25°C. Notes 1, 2

PARAMETER

BLVDS OUTPUTS OUT_+, OUT_-

Differential Output Voltage

Change in Magnitude of VOD Between Complementary Output States

Figure 1 Figure 1

CONDITIONS

MIN TYP MAX UNITS
371 450

Offset Voltage

Change in Magnitude of VOS Between Complementary Output States

VOS Figure 1 Figure 1

Output High Voltage Output Low Voltage

Differential Output Short-Circuit Current

VOH VOL

IOSD

VOD = 0

Output Short-Circuit Current

OUT_+ = 0 at IN_ = VCC or OUT_- = 0 at IN_ = 0

Output High-Impedance Current

Disabled, OUT_+ = 0 or VCC, OUT_- = 0 or VCC

Power-Off Output Current

IOFF

VCC = 0 or open, EN = EN = IN_ = 0, OUT_+ = 0 or 3.6V, OUT_- = 0 or 3.6V

Output Capacitance

INPUTS IN_, EN, EN High-Level Input Voltage Low-Level Input Voltage Input Current SUPPLY CURRENT Supply Current Disabled Supply Current

COUT Capacitance from OUT_+ or OUT_- to GND

IN_, EN, EN = 0 or VCC

GND -15

ICC ICCZ

RL = IN_ = VCC or 0 for all channels Disabled

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Datasheet ID: MAX9129EGE+ 647414