AS1151 LVDS Receiver IC

Description

The AS1150 and AS1151 are quad flow-through LVDS (low-voltage differential signaling) receivers which accept LVDS differential inputs and convert them to LVCMOS outputs. The receivers are perfect for low-power low-noise applications requiring high signalling rates and reduced EMI emissions.

The devices are guaranteed to receive data at speeds up to 500Mbps (250MHz) over controlled impedance media of approximately 100Ω. Supported transmission media are PCB traces, backplanes, and cables.

The AS1150 uses high impedance inputs and requires an external termination resistor when used in a point-topoint connection. The AS1151 features integrated parallel termination resistors (nominally 107Ω), which eliminate the requirement for discrete termination resistors, and reduce stub lengths.

The integrated failsafe feature sets the output high if the inputs are open, undriven and terminated, or undriven and shorted. Enable inputs (EN and ENn – internally pulled down to GND) control the high-impedance output and are common to all four receivers. All inputs conform to the ANSI TIA/EIA- 644 LVDS standards. Flow-through pinout simplifies PC board layout and reduces crosstalk by separating the LVDS inputs and LVCMOS outputs.

The devices are available in a 16-pin TSSOP package.

Key Features

• 500 Mbps Data Rate
• Flow-Through Pinout
• 300ps Pulse Skew (Max)
• Single +3.3V Supply
• Failsafe Circuit
• Integrated Termination (AS1151)
• Conform to ANSI TIA/EIA-644 LVDS Standards
• Operating Temperature Range: -40ºC to +85ºC
• 16-pin TSSOP Package

Applications

The devices are ideal for digital copiers, laser printers, cellular phone base stations, add/drop muxes, digital cross-connects, dslams, network switches/routers, backplane interconnect, clock distribution computers, intelligent instruments, controllers, critical microprocessors and microcontrollers, power monitoring, and portable/ battery-powered equipment.

Block diagram for AS1151 LVDS Receiver IC