26 March 2015

MACOM launches VCSEL driver and TIA with integrated CDR chip-set for 100Gbps applications

M/A-COM Technology Solutions Inc of Lowell, MA, USA (which makes semiconductors, components and subassemblies for analog RF, microwave, millimeter-wave and photonic applications) has launched the MALD-37045, a four-channel 25.78G/28.05G vertical-cavity surface-emittng laser (VCSEL) driver, and the MATA-37044, a transimpedance amplifier (TIA)/limiting amplifier, both with integrated clock & data recovery (CDR) functionality for use as a complete transmit and receive solution in optical modules and on-board optical engines. The devices consume ultra-low-power, making them the suitable for small-form-factor applications.

The CDRs in the MALD-37045 and the MATA-37044 are programmable and re-time at 25.78Gbps, 27.95Gbps and 28.05Gbps. They are reference-free and can be bypassed to support legacy or non-standard data rates. These companion devices have their respective outputs and inputs spaced on 250µm centers to maintain compatibility with standard optical interfaces, and each device can be individually controlled through the 2-wire serial interface.

The MALD-37045 driver features a high-performance CDR and an equalizer. The device provides programmable bias and modulation current, and a configurable alarm pin to flag faults on any channel.

The MATA-37044 includes a high-sensitivity TIA with selectable bandwidth to support legacy data rates, a limiting amplifier and an output driver with programmable output swing and de-emphasis. The amplifier features programmable slice level adjust, LOS threshold and an average photodiode current monitor (RSSI).

MACOM says that the companion devices are optimal one-stop solutions for optical modules, active optical cables (AOCs) and on-board optical engines. They can be used in 100G Ethernet, EDR InfiniBand and 32G Fibre Channel applications, providing a low-power solution, reducing the overall cost of optical subassemblies.

"These devices further complement MACOM's expanding optical portfolio," says Marek Tlalka, director of marketing. "The new chip-set expands MACOM's family of CDRs, laser drivers and TIA products and, by utilizing our expertise in low-power and high-performance semiconductors for optical applications, we enable our customers to develop the best-in-class 100G module solutions," he adds. 

The MALD-37045 and MATA-37044 are both available in die form, supplied in waffle packs, whole wafers or quartered wafers. Devices are sampling now to development partners.

MACOM is demonstrating its CDR, laser driver and TIA product portfolio in booth #1947 at the Optical Fiber Communication conference & exposition (OFC 2015) in Los Angeles (24-26 March).

Tags: M/A-COM VCSEL driver TIAs

Visit: www.macomtech.com

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