Diodes Incorporated PI90LV048ALEX

Overview

PI90LV048ALEX from Pericom Semiconductor is a quad LVDS differential line receiver in 16-pin TSSOP package, designed for high-speed point-to-point data links. It supports ≥500 Mbps (250 MHz) data rates, features flow-through pinout, 150 ps typical channel-to-channel skew, 2.7 ns max propagation delay, and operates from 3.0–3.6 V supply across –40°C to +85°C industrial temperature range.

For engineers reviewing the PI90LV048ALEX datasheet, PI90LV048ALEX pinout, PI90LV048ALEX application, or PI90LV048ALEX equivalent, key selection criteria include LVDS input compatibility (350 mV typical differential swing), CMOS 3V output levels, fail-safe operation under open/short/100 Ω-terminated inputs, and low-power static dissipation of 40 mW at 3.3 V.

Technical Context

The PI90LV048ALEX implements four independent LVDS receivers with AND-gated enable control (EN and EN) driving CMOS-compatible outputs. Input common-mode range spans 0.2 V to 2.7 V, supporting robust signal reception across varying termination and noise environments.

It requires external 100 Ω differential termination for point-to-point use and provides high-impedance inputs during power-down. Fail-safe logic ensures all outputs go HIGH when inputs are open, shorted, or terminated - critical for deterministic bus states in hot-swap or cable-disconnect scenarios.

Key Specifications

Pinout & Package

PI90LV048ALEX is housed in a Pb-free, green 16-pin TSSOP (Package Code L), 173-mil wide, JEDEC MO-153F/AB compliant package with 0.65 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LVDS receiver applications.

Compared with SN65LVDS32DR and MAX9109ESE+, PI90LV048ALEX uniquely combines flow-through pinout, fail-safe HIGH output, and 40 mW ultra-low static power - making it optimal for thermally constrained, high-reliability industrial backplanes where deterministic link state is non-negotiable.

Availability

PI90LV048ALEX is available at Aetrix Electronics and suitable for industrial backplane interconnect, automotive ADAS camera links, and test equipment digital pattern capture requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for PI90LV048ALEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Pericom Semiconductor (now part of Diodes Incorporated) specialized in high-speed interface ICs, including LVDS, PCIe, USB, and clock management solutions for communications and computing markets.

The PI90LV048ALEX belongs to Pericom's LVDS receiver product line, engineered specifically for ultra-low-power, high-data-rate point-to-point links in industrial and telecom infrastructure where signal integrity and fail-safe behavior are critical.

FAQ

Does PI90LV048ALEX require external termination resistors?

Yes - PI90LV048ALEX requires external 100 Ω differential termination for point-to-point LVDS connections. Unlike its companion PI90LVT048A variant, it does not integrate termination resistors. This allows precise impedance matching to PCB trace characteristics and avoids fixed 110 Ω mismatch that may degrade signal integrity in controlled-impedance layouts.

What happens to outputs during power-down or enable disable?

When EN = HIGH and EN = LOW (disabled state), all four outputs enter high-impedance (3-state) mode. During power-down (VCC = 0 V), inputs become high-impedance and outputs remain in last state until VCC drops below 1.0 V, after which they float - no active pull-up/down is provided in full power-off.

Can PI90LV048ALEX accept LVDS inputs with common-mode voltage below 0.2 V?

No - the specified common-mode input range is 0.2 V to 2.7 V. Operation below 0.2 V violates the Absolute Maximum Rating for input voltage (RIN+ – RIN–) and risks unreliable switching or increased jitter. The device is not guaranteed to meet AC specifications outside this range, even if DC thresholds appear functional.

Is PI90LV048ALEX pin-compatible with PI90LVT048ALEX?

Yes - both share identical 16-pin TSSOP (L) footprint and pin assignments. However, PI90LVT048ALEX integrates 110 Ω termination resistors internally, eliminating external components but introducing slight timing variation due to on-die resistor tolerance; PI90LV048ALEX offers superior flexibility for custom termination and lower thermal load.