Diodes Incorporated PI6C49S1510AZDIEX

Overview

PI6C49S1510AZDIEX from Diodes Incorporated is a high-performance 10-output differential fanout buffer with dual-bank (A/B) user-configurable signaling-LVPECL, LVDS, or HCSL per bank-supporting up to 1.5 GHz output frequency, <0.02 ps typ additive phase jitter (156.25 MHz, 12 kHz–20 MHz), and 2.5 V/3.3 V dual supply architecture. It serves as a low-skew clock distribution IC in high-speed networking switches and telecom backplanes.

For engineers reviewing the PI6C49S1510AZDIEX datasheet, PI6C49S1510AZDIEX pinout, PI6C49S1510AZDIEX application, or PI6C49S1510AZDIEX equivalent, key selection criteria include per-bank output standard configurability, sub-40 ps intra-bank skew, synchronous CMOS reference output up to 200 MHz, and support for crystal, single-ended, or differential reference inputs.

Technical Context

This device implements a dual-bank architecture with independent OPMODEA[1:0] and OPMODEB[1:0] control, enabling simultaneous LVPECL on Bank A and LVDS on Bank B. Input selection (IN_SEL[1:0]) supports three sources: differential IN0±/IN1± or crystal (X1/X2), with automatic illegal input detection that forces outputs low.

It features separate VDD (core) and VDDO (I/O) supplies for level shifting, ultra-low propagation delay (<0.9 ns typ), and precision internal biasing for differential inputs. The Ref_Out is a 200 MHz LVCMOS output with synchronous enable (Sync_OE) and 45–55% duty cycle stability under 10 pF load.

Key Specifications

Pinout & Package

Package: 48-pin TQFN (ZD), 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad - optimized for high-frequency signal integrity and thermal dissipation in dense PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential fanout buffer applications.

Compared with IDT8T49N242 and ICS85310AMLF, the PI6C49S1510AZDIEX uniquely delivers per-bank signaling flexibility, HCSL support, and superior 1.5 GHz performance with lowest additive jitter - making it optimal for heterogeneous, high-speed clock trees where interface diversity and timing margin are critical.

Availability

PI6C49S1510AZDIEX is available at Aetrix Electronics and suitable for high-speed networking switches, telecom line cards, and PCIe-based server platforms requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.

Supply support for PI6C49S1510AZDIEX 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, with leadership in timing, power management, and signal integrity solutions.

The PI6C49S1510AZDIEX belongs to Diodes' high-performance clock buffer product line, engineered specifically for low-jitter, multi-standard clock distribution in 10G–100G networking, datacenter, and telecom infrastructure.

FAQ

What reference input types does the PI6C49S1510AZDIEX support?

The device supports three reference input configurations: differential (IN0± or IN1±), single-ended (via X1 with X2 open), or crystal (X1/X2). IN_SEL[1:0] selects among them, and internal biasing ensures robust operation with single-ended signals referenced to VDD/2.

How is HCSL mode configured and terminated?

HCSL mode is selected via OPMODEA/B[1:0] = 10; the Iref pin must be connected to ground through a 475 Ω resistor to set the 15 mA output current. Termination requires 33 Ω series resistors and 49.9 Ω parallel resistors at the receiver, per Diodes' recommended load board.

Can both banks operate at different signaling standards simultaneously?

Yes - Bank A and Bank B are fully independent. OPMODEA[1:0] and OPMODEB[1:0] are separate control pins, allowing concurrent LVPECL on Bank A and LVDS on Bank B, or any other combination including Hi-Z on either bank.

What is the maximum allowable skew between Bank A and Bank B outputs?

Part-to-part skew is specified at 80–120 ps; inter-bank skew under matched conditions is not separately guaranteed but falls within typical propagation delay variation (<0.9 ns typ) and is minimized by using identical VDDO, layout, and termination for both banks.