PI90LV022L

Overview

The PI90LV022L is a Low Voltage Differential Signaling (LVDS) multiplexer and repeater manufactured by Diodes Incorporated. It integrates two differential line drivers and receivers capable of signaling rates up to 650 Mbit/s. The device operates from a single 3.3V supply within an industrial temperature range of -40°C to +85°C. It features TTL-compatible inputs that are 5V I/O tolerant and provides fail-safe input protection against open, short, or terminated conditions. The component is available in 16-pin SOIC and TSSOP packages.

Feature Summary

• Multiplexing capability allows receiver outputs to be switched between either or both drivers via control signals for signal routing or splitting functions.
• High-impedance output state is maintained when disabled or when the supply voltage falls below 1.5V.
• Inputs provide fail-safe operation for open, short, and terminated states with wide common-mode input voltage range.
• ESD protection rating of 10kV on bus pins ensures robustness in high-interference environments.

Applications

• Point-to-point base-band data transmissions over controlled impedance media
• Multipoint data transmission configurations using doubly terminated Bus LVDS lines
• Cross-point router and pass-through router signal routing applications

Procurement Notes

Verify the specific package variant required, as the PI90LV022L designation corresponds to the 16-pin TSSOP option. Confirm that the application environment remains within the specified -40°C to +85°C operating temperature range. Ensure power supply stability at 3.3V to maintain compliance with ANSI TIA/EIA-644 standards. Check for end-of-life status if long-term production availability is critical for the design lifecycle.

Selection Notes

Select this component when dual-channel LVDS signal routing or splitting is required within a single footprint. The device supports signaling rates up to 650 Mbit/s, making it suitable for high-speed data links. Consider the 16-pin TSSOP package for space-constrained surface-mount designs. Verify that the system ground potential difference does not exceed the receiver's DC signal receipt capability of 1V.

Part Context

This device belongs to the PI90LV022 family, which includes the standard PI90LV022 and the Bus LVDS variant PI90LVB022. While the PI90LV022 is designed for point-to-point connections with a 100 Ohm load, the PI90LVB022 doubles the output drive current for multi-point configurations with a 50 Ohm load. Both variants share identical pinouts and control logic.

Replacement Considerations

Public confirmed substitute part numbers: PI90LV022W (SOIC package), PI90LVB022LEX (Bus LVDS TSSOP package).

FAQ

How does the device prevent false transitions during channel switching?

The internal design ensures that switching between channels via the S0 and S1 control signals does not create false transitions on the outputs.

What is the behavior of the output drivers when the supply voltage is low?

The output drivers enter a high-impedance state when disabled or when the VCC supply voltage is less than or equal to 1.5V.

Can the inputs tolerate voltages higher than the supply rail?

Yes, the inputs are TTL compatible and 5V I/O tolerant, allowing them to accept signals up to 5V even when operating from a 3.3V supply.