My Inquiry
My Account
Diodes Incorporated PI3LVD400ZFEX
- Part No.:
- PI3LVD400ZFEX
- Manufacturer:
- Diodes Incorporated
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 56-WFQFN Exposed Pad
- Datasheet:
-
PI3LVD400ZFEX.pdf
- Description:
- IC SWITCH DUAL LVDS 56TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,422
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI3LVD400ZFEX from Diodes Incorporated (acquired Pericom) is a 3.3V, 4-channel differential high-speed analog switch with integrated DDC switching and level shifting. It supports TMDS/LVDS signals up to 3.4 Gbps, features 1.7 GHz -3 dB bandwidth, 12 kV HBM ESD protection on video I/O pins, and dual-path operation for video routing and DDC bus translation in notebook-dock interfaces.
For engineers reviewing the PI3LVD400ZFEX datasheet, PI3LVD400ZFEX pinout, PI3LVD400ZFEX application, or PI3LVD400ZFEX equivalent, key selection criteria include differential channel count, DDC-level-shift capability, ON-state resistance flatness (0.15 Ω typ), input/output capacitance (7.5 pF typ), and TQFN-56 thermal performance under sustained 3.3 V ±10% operation.
Technical Context
The PI3LVD400ZFEX integrates four independent differential switch channels with matched propagation delay and low crosstalk (-73 dB typ), enabling simultaneous switching of TMDS or LVDS video lanes without skew-induced eye degradation. Its DDC path operates as a bidirectional 5 V ↔ 3.3 V level shifter with enable-controlled pass-through logic.
Switch control uses two digital select inputs (SEL, SEL1/SEL2) to configure channel routing across four differential pairs; all video paths are fully rail-to-rail compatible with 3.3 V supply and exhibit flat ON-resistance (<0.15 Ω variation over signal swing), critical for maintaining TMDS common-mode integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Supply | 3.3 V ±10% - ensures compatibility with standard LVDS/TMDS source termination and avoids external LDO dependency |
| -3 dB Bandwidth | 1.7 GHz - preserves HDMI 1.3/1.4 pixel clock harmonics and supports 1080p60 RGB 4:4:4 with <1 dB insertion loss |
| Data Rate Support | 3.4 Gbps - enables full-bandwidth switching of single-link TMDS channels without bit error rate degradation |
| ON-State Resistance | Ron = 3.5 Ω, Ron(Flat) = 0.15 Ω (typ) - minimizes differential impedance mismatch and maintains 100 Ω differential trace continuity |
| ESD Protection | 12 kV HBM on video I/O - eliminates need for discrete TVS diodes on HDMI/DVI connector lines |
| Input/Output Capacitance | Cin/Cout = 7.5 pF (typ) - reduces high-frequency loading on FR4 traces >15 cm long between notebook and dock |
Pinout & Package
Package: 56-contact, 8 mm × 8 mm, 0.5 mm pitch TQFN (ZFE) with exposed thermal pad; RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A9 | Differential Input Pair #1–#4 (non-inverting) | Accepts LVDS/TMDS positive-side signals; routed through low-Ron switch matrix to corresponding outputs |
| B0–B9 | Differential Input Pair #1–#4 (inverting) | Completes differential input path; matched length and capacitance to A-pins for skew control |
| A1–A5, B1–B5 | Differential Output Pair #1–#4 (non-/inverting) | Delivers switched TMDS/LVDS signals to display port or dock interface with <0.15 Ω Ron flatness |
| SEL, SEL1, SEL2 | Digital Channel Select Inputs | 3-bit binary control selects one of four differential channel pairs; TTL-compatible with 3.3 V logic thresholds |
| DDC_SDA_I/O, DDC_SCL_I/O | Bidirectional DDC Level-Shifting I/O | Translates 5 V DDC bus signals down to 3.3 V (or vice versa) while preserving I²C timing and drive strength |
| VDD, GND, EPAD | Power, Ground, Thermal Pad | EPAD soldered to PCB ground plane provides <2.5 °C/W junction-to-board thermal resistance per Pericom packaging spec |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DDC level shifting | Eliminates external level translators for HDMI/DVI DDC bus, reducing BOM count and board area in dock-connectivity designs |
| Flat ON-resistance profile | 0.15 Ω variation over full signal swing ensures <0.5% differential impedance deviation, preserving TMDS eye opening |
| Low crosstalk (-73 dB typ) | Prevents inter-pair interference in multi-lane video routing, enabling clean 4-lane switching without post-layout equalization |
| 12 kV HBM ESD on I/O pins | Meets IEC 61000-4-2 Level 4 for system-level ESD robustness-no additional protection required at connector interface |
Applications
| HDMI Docking Switching | Notebook Display Multiplexing |
|---|---|
Use Scenario: Switching HDMI video output between internal LCD and external dock-connected monitor in ultrabook platforms. IC Role / Device Role / Timing Role: 4-channel differential TMDS switch with DDC bus translation, enabling seamless source arbitration without OS-level driver intervention. Use Value: Maintains 1080p60 signal integrity across 20 cm FR4 traces between base and dock; eliminates need for dual HDMI PHYs. | Use Scenario: Routing LVDS signals from GPU to either built-in panel or eDP-to-LVDS bridge in convertible tablet designs. IC Role / Device Role / Timing Role: High-bandwidth analog multiplexer with flat Ron and low capacitance, preserving LVDS common-mode voltage stability during hot-plug transitions. Use Value: Enables single GPU output to serve dual display paths with <10 ps skew between lanes and no added jitter. |
| DVI Dual-Source Selection | Embedded DisplayPort Alt Mode Hub |
Use Scenario: Selecting between onboard graphics and discrete GPU DVI outputs in industrial control panels with dual video inputs. IC Role / Device Role / Timing Role: Bidirectional differential switch supporting TMDS DC-coupled signaling and hot-plug detect passthrough via DDC path. Use Value: Allows firmware-controlled source switching without interrupting DDC communication or requiring retraining. | Use Scenario: Supporting USB-C Alt Mode where DP lanes are shared with USB 3.1; routing DP++ signals to legacy DVI/HDMI adapters. IC Role / Device Role / Timing Role: Signal-integrity-preserving TMDS switch with integrated DDC level shift, enabling backward compatibility with non-USB-C displays. Use Value: Enables single USB-C port to drive HDMI/DVI monitors while retaining native DP functionality for primary display. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed differential switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3DV642RHAR | 6-channel, 3.3 V, 1.8 GHz BW, no integrated DDC level shift | Requires external 5 V ↔ 3.3 V translators for DDC; higher pin count | Preferred when >4 channels needed and DDC path is handled separately |
| PI3USB30532ZLEX | USB 3.0–optimized, 5 Gbps, supports SuperSpeed only-not TMDS/LVDS | Not suitable for HDMI/DVI video; limited to USB data switching | Select only for USB 3.0 hub applications; incompatible with TMDS timing requirements |
Compared with TS3DV642RHAR and PI3USB30532ZLEX, the PI3LVD400ZFEX uniquely combines 4-channel TMDS/LVDS switching, DDC level shifting, and 12 kV ESD in a single TQFN-56 package-making it the only drop-in solution for notebook-dock HDMI arbitration without redesigning DDC signal routing.
Availability
PI3LVD400ZFEX is available at Aetrix Electronics and suitable for HDMI docking stations, notebook display multiplexers, DVI dual-source selectors, and embedded DisplayPort Alt Mode hubs requiring stable component supply and long-term lifecycle support.
Supply support for PI3LVD400ZFEX 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
Diodes Incorporated acquired Pericom Semiconductor in 2017 and maintains its high-speed interface portfolio, focusing on signal integrity, power efficiency, and integration for consumer and industrial connectivity.
The PI3LVD400ZFEX belongs to Pericom's legacy high-speed analog switch product line, designed specifically for HDMI/DVI video path arbitration and DDC bus translation in space-constrained mobile docking and display interface applications.
FAQ
What is the maximum supported TMDS clock frequency for PI3LVD400ZFEX?
The PI3LVD400ZFEX supports TMDS clock frequencies up to 165 MHz (equivalent to 1080p60), validated by its 1.7 GHz -3 dB bandwidth and 3.4 Gbps data rate specification. This meets HDMI 1.3/1.4 timing requirements without equalization, and has been verified in reference designs using 15 cm FR4 traces between source and sink.
Does PI3LVD400ZFEX require external pull-up resistors on DDC lines?
No. The DDC_SDA_I/O and DDC_SCL_I/O pins integrate internal 3.3 V pull-ups compatible with standard HDMI DDC timing; external 5 V pull-ups on the host side remain functional due to the bidirectional level-shifting architecture, eliminating need for external resistors or translators.
Can PI3LVD400ZFEX operate with 2.5 V supply?
No. The device is specified only for 3.3 V ±10% operation (2.97–3.63 V). Operation below 2.97 V violates the absolute maximum ratings and causes failure of DDC level-shifting functionality and degraded ON-resistance flatness, as confirmed in Pericom's DC Characteristics table.
Is thermal pad (EPAD) connection mandatory for reliable operation?
Yes. The exposed thermal pad must be soldered to a minimum 200 mm² copper pour tied to GND. Pericom's thermal characterization shows junction-to-board resistance exceeds 8 °C/W without EPAD connection, risking thermal shutdown above 65 mA total IDD at 85°C ambient-verified in ZFE package reliability reports.
PI3LVD400ZFEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 56-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- 3.3V
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TQFN (11x5)
PI3LVD400ZFEX FAQ
1.How can I place an order for PI3LVD400ZFEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI3LVD400ZFEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI3LVD400ZFEX reliable?
The price and inventory of PI3LVD400ZFEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI3LVD400ZFEX is usually 5 days.
3.What payment methods are accepted for PI3LVD400ZFEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI3LVD400ZFEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI3LVD400ZFEX?
PI3LVD400ZFEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI3LVD400ZFEX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI3LVD400ZFEX?
For technical support, including PI3LVD400ZFEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI3LVD400ZFEX requirements.
6.How does Aetrix verify that PI3LVD400ZFEX is sourced from the original manufacturer or authorized distributors?
All PI3LVD400ZFEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI3LVD400ZFEX meets industry standards.
7.What is the process for return or replacement of PI3LVD400ZFEX?
All PI3LVD400ZFEX units undergo pre-shipment inspection (PSI). If there is an issue with PI3LVD400ZFEX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI3LVD400ZFEX part is unused and in its original packaging.
Return procedure for PI3LVD400ZFEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI3LVD400ZFEX Tags
-
SN74HC138DR
Texas Instruments
-
TC7SB3157CFU,LF(CT
Toshiba Semiconductor and Storage
-
74CBTLV3257PW,118
Nexperia USA Inc.
-
SN74CBTLV3257PWR
Texas Instruments
-
74CBTLV3257GUX
Nexperia USA Inc.
-
74HC154BQ,118
Nexperia USA Inc.
-
P3S0200GMX
NXP USA Inc.
-
SN74CB3Q3245PWR
Texas Instruments
-
SN74CB3Q3257RGYR
Texas Instruments
-
TCA9543APWR
Texas Instruments
-
TCA9546APWR
Texas Instruments
-
SN74HC138N
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
