Analog Devices ADN2891 Manuals

AN-762 is an application note about ADN2891 evaluation board. ADN2891 is a data quantizer for SONET, Gigabit Ethernet (GbE) and Fibre Channel optical receivers, supporting a signal data rate from a minimum of 155 Mbps up to a maximum of 3.2 Gbps. ADN2891 has a better than 4mV p-p typical input sensitivity and works well with input level up to 2 V p-p. ADN2891 also provides loss of signal (LOS) and received signal strength indicator (RSSI) features, which makes ADN2891 an ideal limiting amplifier for all SFF-8472-compliant SFP transceivers.

The ADN2891 is a 3.2Gbps limiting amplifier with integrated loss-of-signal (LOS) detection circuitry and a received signal strength indicator (RSSI). This part is optimized for SONET, Gigabit Ethernet (GbE), and Fibre Channel optoelectronic conversion applications. The ADN2891 has a differential input sensitivity of 4 mV p-p and accepts up to a 2.0 V p-p differential input overload voltage. The ADN2891 supports current mode logic (CML) outputs with controlled rise and fall times. 80 ps rise/fall times CML outputs: 700 mV p-p differential Programmable LOS detector: 3.5 mV to 35 mV Rx signal strength indicator (RSSI) SFF-8472-compliant average power measurement Single-supply operation: 3.3 V Low power dissipation: 145 mW Available in