Diodes Incorporated PI6C49CB01JWEX

Overview

PI6C49CB01JWEX from Diodes Incorporated is an industrial-grade 1-to-1 differential-to-LVCMOS/LVTTL clock buffer translator with differential CLK/nCLK inputs supporting LVPECL, LVDS, LVHSTL, SSTL, and HCSL signal levels, a 360MHz maximum output frequency, 0.09ps typical additive phase jitter (3.3V), and operation across –40°C to 105°C ambient temperature - deployed in high-density timing distribution for FPGA I/O banks and microprocessor reference clocks.

For engineers reviewing the PI6C49CB01JWEX datasheet, PI6C49CB01JWEX pinout, PI6C49CB01JWEX application, or PI6C49CB01JWEX equivalent, key selection criteria include differential input compatibility across five logic families, sub-0.1ps jitter performance at 156.25MHz, dual-supply support (2.5V/3.3V), SOIC(W) package footprint constraints, and industrial temperature range validation.

Technical Context

This device functions as a single-output, differential-input clock buffer with internal 51kΩ pullup/pulldown resistors on nCLK/CLK pins, enabling direct interface to multiple differential standards without external biasing. It delivers LVCMOS/LVTTL-compatible output swing referenced to VDD, with propagation delay of 1.6–2.0ns (3.3V) and part-to-part skew ≤500ps.

The architecture supports both differential and single-ended input configurations via external V_REF biasing (e.g., VDD/2), and features low-power dissipation capacitance (23pF) and output impedance of 5–13Ω - optimized for controlled-impedance trace routing into 50Ω-terminated loads.

Key Specifications

Pinout & Package

Package: 8-pin SOIC(W), 150mil width, RoHS-compliant, lead-free, and halogen-free "Green" construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential-to-single-ended clock buffer applications.

Compared with ICS853S01I and PI6C20400WEX, PI6C49CB01JWEX uniquely balances 360MHz bandwidth, 0.09ps jitter, dual-supply flexibility, and industrial temperature rating - making it optimal for space-constrained, thermally demanding, single-output clock distribution nodes.

Availability

PI6C49CB01JWEX is available at Aetrix Electronics and suitable for FPGA clock distribution, DDR memory controller timing, and industrial Ethernet PHY synchronization requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PI6C49CB01JWEX 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 manufacturer of discrete semiconductors and integrated circuits, specializing in high-performance analog, logic, and timing solutions for industrial, computing, and communications markets.

This device belongs to Diodes' PI6C clock buffer product line, engineered specifically for low-jitter, multi-standard differential-to-LVCMOS translation in space- and thermal-constrained industrial systems.

FAQ

Can PI6C49CB01JWEX accept single-ended inputs?

Yes - the differential CLK/nCLK inputs can be configured for single-ended operation using an external V_REF bias network (e.g., resistor divider to VDD/2). The datasheet provides explicit guidance in Figure 1, including resistor ratio adjustments based on input swing amplitude and supply voltage.

What is the recommended power supply decoupling for PI6C49CB01JWEX?

A 0.1µF ceramic capacitor placed within 2mm of the VDD pin (Pin 8) and GND (Pin 5) is required. For systems with high transient current demands, adding a 4.7µF tantalum or X7R MLCC in parallel improves low-frequency PSRR and stabilizes jitter performance across temperature.

Does PI6C49CB01JWEX support spread-spectrum clocking (SSC)?

No - the device does not implement or preserve spread-spectrum modulation. Its low-additive-jitter design assumes a fixed-frequency input; applying SSC to the CLK/nCLK pair may degrade output spectral purity and violate downstream receiver jitter tolerance limits.

Is PI6C49CB01JWEX pin-compatible with earlier revisions like PI6C49CB01J?

Yes - the 'WEX' suffix denotes tape-and-reel packaging and Pb-free/Green compliance; electrical, thermal, and mechanical specifications (including pinout, SOIC(W) footprint, and marking format) are identical to the base PI6C49CB01J part.