About GigPeak 200G VCSEL Drivers
The single-channel VCSEL driver HXT14100 and the quad-channel VCEL driver HXT14400 share an architecture which supports modulation current up to 12mA and average VCSEL current up to 18mA, with a dedicated BURNIN capability up to 20mA average current. The 1MHz I2C interface enables full control of all driver functions, including input equalization, output peaking, automatic power control, automatic gain control, signal detect and squelch, channel polarity inversion, diagnostics such as average current and temperature monitoring, as wells as user maskable interrupts and VCSEL voltage supervisory functions. The chip integrates the digital diagnostics function as defined in the SFF8472 standard. The VCSEL drivers are sampling now in die form and on an evaluation board with MOU.
GigPeak will showcase the HXT14100 in a live demo at OFC 2017 in which the laser driver will be driving transmit optics using 28GB PAM4 modulation.
About GigPeak 200Gbps DML Drivers
The HXT44100 and HXT44400 DML drivers share the same architecture with a high level of integration, low power dissipation, and a small form factor. The HXT44100 single-channel driver footprint is sufficiently small to use within a TOSA (TO-can) solution. Both DML driver solutions support low voltage supply operation, as low as 2.5V with modulation and bias currents of 50mA and 50mA respectively, enabling the next generation of low power modules. They can be driven with supply voltages up to 3.3V if higher modulation and bias currents are required. A single channel operating at 2.5V will dissipate about 300mW of chip power. Neither of the two devices requires any external digital analog convertor (DAC) for operation. The DML drivers are sampling now in die form and will be available in a TOSA form factor for sampling in the second half of 2017.
A high level of integration is provided with both the HXT44100 and HXT44400 by incorporating the modulation, bias, and pulse shaping DAC into the devices with an integrated I2C interface for control, monitoring, fault, and status detection. The 1MHz I2C interface enables full control of additional functionality such as signal detect and squelch, bandwidth adjust, maskable fault and interrupt generation, internal temperature monitor selection, channel polarity inversion, and programmable CTLE input equalization.
GigPeak will showcase the HXT44100 in a live demo at OFC 2017 in which the laser driver will be driving transmit optics using 28Gbps PAM4 modulation.
About GigPeak’s 200Gbps CDRs
The HXC44200 and the HXC44400 CDR/retimers are based on an analog CTLE-based architecture and have significant advantage over competitive digital solutions based on DSPs. They come with a 10 tap adaptive linear equalizer and decision feedback equalizer to cover up to 20dB lossy channel. The output de-emphasis for transmit has a 3-tap FFE filter. There are multiple advanced features, such as on-chip testability, eye monitoring, and a PRBS generator and checker. The CDRs are expected to be sampling in June 2017.
Visit GigPeak’s OFC booth #3231 to view the PAM4 VCSEL and DML driver demos.
About GigPeak
GigPeak, Inc. (NYSE MKT: GIG) is a leading innovator of semiconductor ICs and software solutions for high-speed connectivity and high-quality video compression over the network and the cloud. The focus of the company is to develop and deliver products that enable lower power consumption and faster data connectivity, more efficient use of network infrastructure, broader connectivity to the cloud, and reduce the total cost of ownership of existing network pipes from the core to the end user. GigPeak addresses both the speed of data transmission and the amount of bandwidth the data consumes within the network, and provides solutions that increase the efficiency of the Internet of Things, leveraging its strength in high-speed connectivity and high-quality video compression. The extended product portfolio provides more flexibility to support changing market requirements from ICs and MMICs through full software programmability and cost-efficient custom ASICs.
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