Diodes Incorporated PI3LVD512ZFEX

Overview

PI3LVD512ZFEX from Pericom Semiconductor is a 3.3V, 5-differential-channel LVDS analog switch designed for high-fidelity video routing in 24-bit display systems. It delivers –3dB bandwidth of 870MHz (typ), <0.5Ω on-resistance flatness, and 12kV HBM ESD protection on I/O pins. Used to select between notebook and dock LVDS video paths while preserving signal integrity over long FR4 traces.

For engineers reviewing the PI3LVD512ZFEX datasheet, PI3LVD512ZFEX pinout, PI3LVD512ZFEX application, or PI3LVD512ZFEX equivalent, key selection criteria include differential channel count (5), bandwidth (870MHz), on-resistance flatness (0.5Ω typ), ESD rating (12kV HBM), and TQFN-56 ZFE package compatibility with high-density PCB layouts.

Technical Context

The PI3LVD512ZFEX implements a single-pole double-throw (SPDT) architecture per differential pair, controlled by a single SEL logic input. Each of its five independent LVDS channels switches between two differential inputs (nB1/nB2) to one output (An), with high-impedance isolation when deselected.

It operates exclusively at 3.3V ±10%, supports rail-to-rail logic inputs up to +3.6V, and integrates bidirectional ESD clamps to VDD and GND on all video I/O pins. Signal path design minimizes bit-to-bit skew (<15ps) and channel-to-channel skew (<60ps), critical for timing-aligned RGB data transmission.

Key Specifications

Pinout & Package

PI3LVD512ZFEX is housed in a Pb-free, green 56-pin Thin Quad Flat No-Lead (TQFN) package (ZFE), 7mm × 7mm × 0.8mm, with exposed thermal pad. Pin pitch is 0.5mm; coplanarity ≤0.08mm per JEDEC MO-220.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TS3DV642RHAR and MAX4899AEETE+, PI3LVD512ZFEX provides superior LVDS-specific performance: tighter on-resistance flatness (0.5Ω vs. ≥3Ω), higher ESD robustness (12kV vs. 8kV), and lower crosstalk (–28dB vs. –22dB), making it optimal for precision display interfaces demanding signal fidelity and reliability.

Availability

PI3LVD512ZFEX is available at Aetrix Electronics and suitable for notebook docking stations, industrial panel PCs, medical imaging displays, and embedded DisplayPort Alt Mode implementations requiring stable component supply and long-term manufacturability.

Supply support for PI3LVD512ZFEX 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 (acquired by Diodes Incorporated in 2016) specialized in high-speed interface solutions, clock management, and signal-integrity ICs for computing, communications, and consumer electronics.

The PI3LVD series was developed specifically for LVDS video switching in portable and docked display architectures, emphasizing low skew, high bandwidth, and integrated ESD protection to simplify front-panel and interconnect designs.

FAQ

What is the maximum operating temperature range for PI3LVD512ZFEX?

The PI3LVD512ZFEX is rated for operation from –40°C to +85°C ambient temperature. Its storage temperature range extends from –65°C to +150°C. Thermal performance is validated with the exposed pad soldered to a minimum 100mm² copper pour, and junction temperature must remain below 125°C under worst-case power dissipation (500µA ICC at 3.3V).

Does PI3LVD512ZFEX require external termination resistors?

No. The PI3LVD512ZFEX is designed to operate with standard 100Ω differential LVDS termination already present at the display panel or downstream receiver. Its low 6pF output capacitance and matched on-resistance ensure minimal reflection when driving properly terminated loads; no additional series or parallel termination is needed on the switch side.

Can SEL be driven directly from a 1.8V GPIO?

Yes. The SEL input accepts logic levels from 0V to +3.6V regardless of VDD, so a 1.8V GPIO can reliably drive it low (≤0.8V) and high (≥2V). VIH is guaranteed above 2V and VIL below 0.8V, providing 1.2V noise margin at 1.8V drive - sufficient for most modern microcontrollers and SoCs without level-shifting.

How does PI3LVD512ZFEX handle power-down states?

PI3LVD512ZFEX has no dedicated power-down pin. When VDD = 0V, IOFF leakage is limited to ±5µA per channel, effectively isolating inputs from outputs. However, all I/O pins remain high-impedance and unprotected against ESD in this state. For true power-gated operation, VDD must be actively controlled via external PMIC or regulator sequencing.