MAX9129 Quad Bus LVDS Driver with Flow-Through Pinout

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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 27Ω 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 active-low 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.

Key Features

Applications/Uses

Drive LVDS Levels into a 27Ω Load
1ns (0% to 100%) Minimum Transition Time Reduces Reflections
Guaranteed 200Mbps (100MHz) Data Rate
Enable Pins for High-Impedance Output
High-Impedance Outputs when Powered Off
Glitch-Free Power-Up and Power-Down
Hot Swappable
Flow-Through Pinout
Available in Tiny QFN Package (50% Smaller than TSSOP)
Single +3.3V Supply

	Add/Drop Multiplexers
	Backplane and Interconnect Applications
	Cell Phone Base Stations
	Clock/Data Distribution
	Digital Cross-Connects
	DSLAM
	Network Routers and Switches

Key Specifications: High-Speed Interconnect (Differential Signaling)

Part Number

Features

Rx Signal Type

Tx Signal Type

Functions

Number of Rx

Number of Tx

Data Rates (Mbps)

Propagation Delay (max) (ps)

Supply Voltage (V)

Pulse Skew (max) (ps)

Channel-to-Channel Skew (max) (ps)

Output Transition Time (max) (ps)

ESD Protection (±kV)

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX9129

•	Flow-Through Pinout

•	Tx Hi-Z Enable Pins

•	Tx Hi-Z at Power-Off

CMOS
LVTTL

LVDS

•	Level Translator

200

3000

3.3

300

450

1,550

Yes

QFN/16
TSSOP/16

$3.50 @ 1k

See All High-Speed Interconnect (Differential Signaling) (131)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.