MAXIM Manuals

The MAX9321/MAX9321A are low-skew differential receiver/drivers designed for clock and data distribution

The MAX9312/MAX9314 are low skew, dual 1-to-5 differential drivers designed for clock and data distribution. They feature low part-to-part skew and output-to-output skew, making them ideal for clock and data distribution across a backplane or a board. They operate over a +2.25V to +3.8V supply range for interfacing to differential HSTL and LVPECL signals, allowing high-performance clock or data distribution in systems with a nominal +2.5V or +3.3V supply. For differential LVECL operation, they operate from a -2.25V to -3.8V supply. They are offered in an industry-standard 32-pin 7mm x 7mm LQFP package and a space-saving 32-pin 5mm x 5mm TQFN package.

MAX9320/MAX9320A is a low-skew, 1-to-2 differential driver designed for clock and data distribution. The input is reproduced at two differential outputs. The differential input can be adapted to accept single-ended inputs by applying an external reference voltage. The MAX9320/MAX9320A feature ultra-low propagation delay (208ps), part-to-part skew (20ps), and output-to-output skew (6ps) with 30mA maximum supply current, making these devices ideal for clock distribution. For interfacing to differential HSTL and LVPECL signals, these devices operate over a +2.25V to +3.8V supply range, allowing high-performance clock or data distrib- ution in systems with a nominal +2.5V or +3.3V supply. For differential LVECL operation, these devices operate from a -2.25V to -3.8V supply. The pinout is the only difference between the MAX9320 and MAX9320A. Multiple pinouts are provided to simplify routing across a backplane to either side of a double-sided board. These devices are offered in space-saving 8-pin SOT23, µMAX, and SO packages. Applications include precision clock distribution, low-jitter data repeater and protection switching.

MAX9400/MAX9402/MAX9403/MAX9405 are extremely fast, low-skew quad LVECL/ECL or LVPECL/PECL buffer/receivers designed for high-speed data and clock driver applications. These devices feature an ultra-low propagation delay of 335ps and channel-to-channel skew of 16ps in asynchronous mode with 86mA supply current. The four channels can be operated synchronously with an external clock, or in asynchronous mode determined by the state of the SEL input. An enable input provides the ability to force all the outputs to a differential low state. A variety of input and output terminations are offered for maximum design flexibility. The MAX9400 has open inputs and open emitter outputs. The MAX9402 has open inputs and 50Ω series outputs. The MAX9403 has 100Ω differential input impedance and open emitter outputs. The MAX9405 has 100Ω differential input impedance and 50Ω series outputs. These devices operate with a supply voltage of (VCC - VEE) = 2.375V to 5.5V, and are specified for operation from -40°C to +85°C. These devices are offered in space-saving 32-pin 5mm ✕ 5mm TQFP and 32-lead 5mm ✕ 5mm QFN packages.

The MAX9315 is a low-skew, 1-to-5 differential driver designed for clock and data distribution. This device allows selection between two inputs. The selected input is reproduced at five differential outputs. The differential inputs can be adapted to accept a single-ended input by connecting the on-chip VBB supply to one input as a reference voltage. The MAX9315 features low output-to-output skew (20ps), making it ideal for clock and data distribution across a backplane or a board. For interfacing to differential HSTL and LVPECL signals, this device operates over a +2.375V to +3.8V supply range, allowing high-performance clock or data distribution in systems with a nominal +2.5V or +3.3V supply. For differential LVECL operation, this device operates with a -2.375V to -3.8V supply. The MAX9315 is offered in a space-saving 20-pin TSSOP package.

MAX9401/MAX9404 are extremely fast and low-skew quad ECL/PECL differential buffers/receivers for data and clock signals. The four channels can be operated synchronously with an external clock, or in asynchronous mode, determined by the state of the SEL input. An enable input provides the ability to force all the outputs to a differential low state. The MAX9401 has high-impedance (open) input and the MAX9404 has an integrated 100Ω differential input termination, which reduces external component count. Both devices have double amplitude swing open emitter outputs suitable for driving long cables. The MAX9401/MAX9404 operate over a VCC - VEE = +3.0V to +5.5V supply range, and are specified for operation from -40°C to +85°C. These devices are offered in space-saving 32-pin 5mm x 5mm QFN exposed-paddle (EP) and TQFP packages.

The MAX9155 is a low-voltage differential signaling (LVDS) repeater that accepts a single LVDS input and duplicates the signal at a single LVDS output. Its low-jitter, low-noise performance makes it ideal for buffering LVDS signals sent over long distances or noisy environments, such as cables and backplanes. The MAX9155's tiny size makes it especially suitable for minimizing stub lengths in multidrop backplane applications. The SC70 package (half the size of a SOT23) allows the MAX9155 to be placed close to the connector, thereby minimizing stub lengths and reflections on the bus. The point-to-point connection between the MAX9155 output and the destination IC, such as an FPGA or ASIC, allows the destination IC to be located at greater distances from the bus connector. Ultra-low, 23psp-p added deterministic jitter and 0.6psRMS added random jitter ensure reliable communication in high-speed links that are highly sensitive to timing errors, especially those incorporating clock-and-data recovery, PLLs, serializers, or deserializers. The MAX9155's switching performance guarantees a 200Mbps data rate, but minimizes radiated noise by guaranteeing 0.5ns minimum output transition time. The MAX9155 has fail-safe circuitry that sets the output high for undriven open, short, or terminated inputs. The MAX9155 operates from a single +3.3V supply and consumes only 10mA over a -40°C to +85°C temperature range. Refer to the MAX9129 data sheet for a quad bus LVDs.

The MAX9180 is a 400Mbps, low-voltage differential signaling (LVDS) repeater, which accepts a single LVDS input and duplicates the signal at a single LVDS output. Its low-jitter, low-noise performance makes it ideal for buffering LVDS signals sent over long distances or noisy environments, such as cables and backplanes. The MAX9180’s tiny size makes it especially suitable for minimizing stub lengths in multidrop backplane applications. The SC70 package (half the size of a SOT23) allows the MAX9180 to be placed close to the connector, thereby minimizing stub lengths and reflections on the bus. The point-to-point connection between the MAX9180 output and the destination IC, such as an FPGA or ASIC, allows the destination IC to be located at greater distances from the bus connector. Ultra-low, 23psP-P added deterministic jitter and 0.6psRMS added random jitter ensure reliable communication in high-speed links that are highly sensitive to timing errors, especially those incorporating clock-and-data recovery, PLLs, serializers, or deserializers. The MAX9180’s switching performance guarantees a 400Mbps data rate, but minimizes radiated noise by guaranteeing 0.5ns minimum output transition time. The MAX9180 has fail-safe circuitry that sets the output high for undriven open, short, or terminated inputs. The MAX9180 operates from a single 3.3V supply and consumes only 10mA over a -40°C to +85°C temperature range. Refer to the MAX9129 data sheet for more information.

The MAX9321B low-skew differential receiver/driver is designed for clock and data distribution. The differential input can be adapted to accept a single-ended input by connecting the on-chip VBB supply to an input as a reference voltage. The MAX9321B features ultra-low propagation delay (172ps) and part-to-part skew (20ps) with 24mA maximum supply current, making this device ideal for clock buffering or repeating. For interfacing to differential PECL and LVPECL signals, these devices operate over a +3.0V to +5.5V supply range, allowing high-performance clock and data distribution in systems with a nominal 3.3V or 5.0V supply. For differential ECL and LVECL operation, this device operates from a -3.0V to -5.5V supply. The MAX9321B is offered in industry-standard 8-pin SO and TSSOP packages.

The MAX9320B is a low-skew, 1-to-2 differential driver designed for clock and data distribution. It features ultra-low propagation delay, part-to-part skew, and output-to-output skew, making it ideal for clock distribution. The device operates over a +3.0V to +5.5V supply range for PECL/LVPECL operation, and a -3.0V to -5.5V supply range for ECL/LVECL operation. The MAX9320B is offered in industry-standard 8-pin TSSOP and SO packages.

The MAX9160 is a 125MHz, 14-port LVTTL/LVCMOS clock driver that repeats the selected LVDS or LVTTL/LVCMOS input on two output banks. Each bank consists of seven LVTTL/LVCMOS series terminated outputs and a bank enable. The LVDS input has a fail-safe function. The MAX9160 has a propagation delay that can be adjusted using an external resistor to set the bias current for an internal delay cell. The LVTTL/LVCMOS outputs feature 200ps maximum output-to-output skew and ±100ps maximum peak-to-peak jitter. The MAX9160 is designed to operate with a 3.3V supply voltage over the extended temperature range of -40°C to +85°C. This device is available in 28-pin exposed- and nonexposed-pad TSSOP and 32-lead 5mm x 5mm QFN packages.

The MAX9310A is a fast, low-skew 1:5 differential driver with selectable LVPECL inputs and LVDS outputs, designed for clock distribution applications. This device features an ultra-low propagation delay of 340ps with 48mA of supply current. The MAX9310A operates from a 3V to 3.6V power supply for use in 3.3V systems. A 2:1 input multiplexer is used to select one of two differential inputs. The input selection is controlled through the CLKSEL pin. This device features a synchronous enable function. The MAX9310A LVPECL inputs can be driven by either a differential or single-ended signal. A VBB reference voltage output is provided for use with single-ended inputs. The device can also accept differential HSTL signals. The MAX9310A is offered in a space-saving 20-pin TSSOP package and operates over the extended temperature range from -40°C to +85°C. Applications Data and Clock Drivers and Buffers Central-Office Backplane Clock Distribution DSLAM Base Stations ATE Features Guaranteed 1.0GHz Operating Frequency 8.0ps Output-to-Output Skew 340ps Propagation Delay Accepts LVPECL and Differential HSTL Inputs Synchronous Output Enable/Disable Two Selectable Differential Inputs 3V to 3.6V Supply Voltage On-Chip Reference for Single-Ended Operation ESD Protection: ±2kV (Human Body Model) Input Bias Resistors Drive Output Low for Open Inputs

The MAX9310 is a fast, low-skew 1:5 differential driver with selectable LVPECL/HSTL inputs and LVDS outputs, designed for clock distribution applications. This device features an ultra-low propagation delay of 345ps with 45.5mA of supply current. The MAX9310 operates from a 2.375V to 2.625V power supply for use in 2.5V systems. A 2:1 input multiplexer is used to select one of two differential inputs. The input selection is controlled through the CLKSEL pin. This device also features a synchronous enable function. The MAX9310 is offered in a space-saving 20-pin TSSOP package and operates over the extended temperature range from -40°C to +85°C.

The MAX9317/MAX9317A/MAX9317B/MAX9317C are low-skew, dual 1-to-5 differential drivers designed for clock and data distribution. They reproduce the differential input at five LVDS outputs with a low output-to-output skew of 5ps. The MAX9317/MAX9317A are designed for low-voltage operation from a 2.375V to 2.625V power supply for use in 2.5V systems. The MAX9317B/MAX9317C operate from a 3.0V to 3.6V power supply for use in 3.3V systems. The MAX9317A/MAX9317C feature 50Ω input termination resistors to reduce component count. The MAX9317 family is available in 32-pin 7mm ✕ 7mm TQFP and space-saving 5mm ✕ 5mm QFN packages and operate across the extended temperature range of -40°C to +85°C.