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Preliminary Data Sheet January 1998
LG1628AXA SONET/SDH 2.488 Gbits/s Transimpedance Amplifier
Features
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High data rate: 2.5 Gbits/s High gain: 5.8 kΩ transimpedance Complementary 50 Ω outputs Low noise Ultrawide dynamic range Single –5.2 V ECL power supply
A complete receiver/regenerator can be constructed with an LG1628AXA followed by an LG1605 limiting amplifier and LG1600 clock and data regenerator. Figure 1 shows the block diagram of the LG1628AXA transimpedance amplifier. The amplifier consists of a 4.2 kΩ differential transimpedance stage followed by a limiting buffer that provides complementary 50 Ω outputs.