Diodes Incorporated PI3WVR2646GHEX

Overview

PI3WVR2646GHEX from Diodes Incorporated is a 10-channel, 2:1 MIPI D-PHY/C-PHY switch supporting four high-speed data lanes and one differential clock pair. It enables dynamic routing between two camera or display modules (Port A/Port B) to a single CSI/DSI host interface, with 2.5 Gbps D-PHY and 2.5 Gsps C-PHY data rates, 4.1 GHz -3 dB bandwidth, and 6 Ω typical R_ON for HS/LP modes.

For engineers reviewing the PI3WVR2646GHEX datasheet, PI3WVR2646GHEX pinout, PI3WVR2646GHEX application, or PI3WVR2646GHEX equivalent, key selection criteria include differential crosstalk (-30 dB @ 1.25 GHz), channel-to-channel R_ON matching (0.1 Ω), skew control (6 ps typical), and WLCSP-36 package compatibility with mobile PCB layout constraints.

Technical Context

This SPDT analog switch implements true break-before-make switching across ten differential paths - four data lane pairs (D1–D4) and one clock pair (CLK) - with independent SEL and OE controls. Its architecture supports simultaneous switching of all lanes under a single SEL command while maintaining signal integrity via flat R_ON (0.3 Ω) and low capacitance (1.5 pF CON).

The device operates across 1.5 V to 3.6 V supply and handles dual-mode MIPI signaling: HS mode (0–0.5 V swing) and LP mode (0–1.3 V swing), with separate input voltage limits and leakage specs per mode. ESD robustness (2 kV HBM) and thermal rating (T_j = 125 °C) support automotive-adjacent industrial and portable applications.

Key Specifications

Pinout & Package

Package: 36-ball WLCSP (GH), 2.10 mm × 2.10 mm, 0.4 mm pitch, ball map per JEDEC MO-220, top-side index at A1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar MIPI switch applications.

Compared with PI3WVR648GHEX, this part trades LP-11 mode and higher ESD for cost efficiency and identical D-PHY/C-PHY lane switching performance; versus TS3USB30E, it delivers MIPI-specific signal integrity, 4× more lanes, and WLCSP integration essential for space-constrained mobile designs.

Availability

PI3WVR2646GHEX is available at Aetrix Electronics and suitable for smartphone camera switching, tablet display routing, laptop MIPI hub architectures, and automotive ADAS camera aggregation requiring stable component supply and WLCSP-36 footprint compatibility.

Supply support for PI3WVR2646GHEX 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 is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.

The PI3WVR2646 belongs to Diodes' Pericom® high-speed interface product line, engineered specifically for MIPI D-PHY/C-PHY signal routing in mobile and embedded vision systems where low skew, flat R_ON, and minimal crosstalk are mandatory.

FAQ

What is the maximum operating temperature for PI3WVR2646GHEX?

The junction temperature rating is 125 °C, with recommended operating ambient temperature from -40 °C to +85 °C. Thermal performance depends on PCB copper area, number of ground balls used, and airflow; derating is required above 85 °C ambient per the datasheet's thermal resistance curve (θ_JA = 120 °C/W typical).

Does PI3WVR2646GHEX support MIPI C-PHY v1.2 timing requirements?

Yes - it supports C-PHY 2.5 Gsps (3-wire tribit) operation with verified skew ≤4 ps per lane group and -30 dB crosstalk at 1.25 GHz, meeting C-PHY v1.2 eye diagram and jitter specifications when used with proper 37 Ω differential termination and controlled-impedance routing.

Can OE and SEL be driven directly from a 1.8 V GPIO without level shifting?

Yes - VIH is specified as 1.0 V minimum and VIL as 0.5 V maximum across 1.5–3.3 V VCC, so a 1.8 V GPIO satisfies both logic thresholds with margin. No level shifter is needed, and floating inputs are prohibited per datasheet recommendation.

Is there a recommended PCB stack-up for minimizing skew in PI3WVR2646GHEX layouts?

Use symmetric stripline or microstrip layers with 100 Ω ±5% differential impedance; match lengths of CLK± and each Dn± pair to within 1 mm; place decoupling capacitors (100 nF + 10 nF) within 2 mm of A5 and ground balls; avoid vias in high-speed paths and route all differential pairs over solid reference planes.