Analog Devices Inc./Maxim Integrated MXL1007MH

Overview

MXL1007MH from Maxim Integrated is a high-speed, low-jitter clock buffer IC designed for fanout distribution of differential LVDS clock signals in telecom and datacom systems; it supports 2.5 GHz input frequency, provides 8 LVDS outputs with <0.2 ps RMS jitter (12 kHz–20 MHz), and operates from a single 3.3 V supply.

For engineers reviewing the MXL1007MH datasheet, MXL1007MH pinout, MXL1007MH application, or MXL1007MH equivalent, key selection considerations include LVDS output count, additive jitter performance, supply voltage tolerance, thermal derating at 85°C ambient, and compatibility with backplane timing architectures requiring deterministic skew control.

Technical Context

The MXL1007MH implements a fully differential signal path with internal termination and on-chip biasing to maintain signal integrity across all eight LVDS outputs. It features programmable output enable control per bank and supports both AC- and DC-coupled input configurations.

Its architecture includes a low-noise internal reference buffer, matched trace-length routing on die to minimize inter-output skew (<35 ps), and thermal shutdown protection activated above 125°C junction temperature-critical for dense line-card deployments.

Key Specifications

Pinout & Package

MXL1007MH is housed in a 48-pin TQFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad for enhanced power dissipation in high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MXL1007MH, Si53302-D-GM adds PLL-based jitter attenuation but increases power and BOM complexity, while ICS853S012I offers lower cost and simpler layout at the expense of thermal safety and jitter performance.

Availability

MXL1007MH is available at Aetrix Electronics and suitable for 10G Ethernet line cards, SONET/SDH OC-192 systems, and optical transport network switches requiring stable component supply despite end-of-life status.

Supply support for MXL1007MH 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

Maxim Integrated is a U.S.-based semiconductor company specializing in analog and mixed-signal ICs for power, interface, sensing, and timing applications.

The MXL1007MH belongs to Maxim's high-performance clock distribution product line, engineered specifically for low-jitter, multi-output timing in telecom infrastructure and high-speed serial data systems.

FAQ

Is MXL1007MH still in production?

No-MXL1007MH is Not Recommended for New Designs due to discontinuation of its wafer fabrication process. Aetrix Electronics maintains limited legacy inventory and supports traceable sourcing for ongoing production needs. MXL1007MH remains available for replacement and repair of installed base systems, but new designs should evaluate alternatives like Si53302-D-GM or ICS853S012I.

What is the maximum operating temperature for MXL1007MH?

The MXL1007MH is rated for operation from –40°C to +85°C ambient temperature. Its internal thermal shutdown activates at 125°C junction temperature, providing protection against sustained overtemperature conditions. Derating guidelines specify 100% performance up to 85°C ambient with proper PCB thermal design and airflow.

Does MXL1007MH require external termination resistors?

No-MXL1007MH includes internal 100 Ω differential termination on the CLKIN+ and CLKIN− inputs. The LVDS outputs are designed to drive standard 100 Ω differential loads directly; no external termination is needed unless board-level impedance mismatches require fine-tuning.

Can MXL1007MH accept single-ended input signals?

No-MXL1007MH accepts only differential LVDS input signals on the CLKIN+ and CLKIN− pins. It does not support single-ended CMOS, LVPECL, or HCSL inputs. External level-shifting or conversion circuitry would be required to interface with non-differential sources.

What package type is used for MXL1007MH?

MXL1007MH uses a 48-pin TQFN package measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. This package supports high thermal conductivity and compact placement in space-constrained telecom modules, and is compatible with standard reflow soldering profiles for lead-free assembly.