AL1642D is a four-channel linear amplifiers with differential inputs and differential outputs designed for 100Gbps/200Gbps/400Gbps PAM4 and coherent PM-QPSK applications. The ultra-broad bandwidth driver can be operated either in linear mode or limiting mode. The driver takes a differential input signal ranging from 0.3Vppd to 0.5Vppd and provides a differential output up to 3Vpp. When driven from the differential outputs of a high performance DAC, the common-mode rejection characteristic of this differential input design helps to maintain the linearity and resolution of the DAC.
? Data rate: PAM-4 data rate up to 64 Gbps per channel
? Adjustable differential output amplitude range from 2Vpp to 3Vpp
? High bandwidth over 50GHz
? THD at 1GHz 3% at 3Vppd
? VGA gain control: linear gain range 5 - 18dB
? Bandwidth control using CTLE circuit
? Crossing point adjustment
? Channel pitch 625μm
? Typical 0.45W per channel, for output of 3.0 Vppd; driver output is biased through output port at 4V (3.5V ~ 4V, depending on the actual modulator load)
? 100G/200G/400G PM-QPSK optical modulation format
? 100G/200G/400G PAM-4 optical modulation format
傲科是一家國際領先的模擬半導體芯片設計廠商，專注于模擬、混合信號和光電集成芯片的設計、開發、制造、銷售，產品主要應用于長途核心網絡、數據中心光互連(DCI)、5G匯聚與接入、光纖入戶等光通信和光互連的核心領域。
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