MAX3945

The MAX3945 is designed as one kind of 1.0625Gbps to 11.3Gbps, SFP+ dual-path limiting amplifier device that can be used in (1)1x/2x/4x/8x SFF/SFP/SFP+ MSA fibre-channel; (2)optical transceiver; (3)10GBASE-SR/LR SFP+ optical transceiver; (4)10G PON ONU applications. And this device is packaged in a 3mm x 3mm, 16-pin TQFN package.

Features of the MAX3945 are:(1)130mW Power Dissipation Enables < 1W SFP+ Modules; (2)Enables Single-Module Design Compliance with 1000BASE-SX/LX and 10GBASE-SR/LR Specifications; (3)-25.3dBm Optical Sensitivity at 1.25Gbps Using a 10.32Gbps ROSA; (4)Selectable 1GHz/2.1GHz/2.5GHz/3GHz Input Filters at RATE_SEL = 0 Setting; (5)Supports SFF-8431 SFP+ MSA and SFF-8472 Digital Diagnostic; (6)Total Power Dissipation of 130mW at 3.3V Power Supply with RSSI Monitor-Based LOS; (7)Total Power Dissipation of 154mW at 3.3V Power Supply with Rx Input-Based LOS; (8)4mVP-P Input Sensitivity at 11.3Gbps; (9)Programmable CML Output Deemphasis; (10)CML Output Polarity Select; (11)LOS Polarity Select; (12)Programmable Masking Time for the LOS Output; (13)LOS Assert/Deassert Level Adjustment; (14)Choice of Rx Input-Based LOS or RSSI Monitor- Based LOS; (15)3-Wire Digital Interface Compatible with Maxim's SFP+ Family of Products.

The absolute maximum ratings of the MAX3945 can be summarized as:(1)Storage Ambient Temperature Range: -55°C to +150°C;(2)Operating Junction Temperature Range: -55°C to +150°C;(3)Continuous Power Dissipation (TA = +70°C): 552 mW;(4)Continuous Current at CML Outputs: -25mA to +25mA;(5)Differential Input Voltage (IN+ - IN-): 2.5V;(6)Current into VREF: 2 mA;(7)Current into LOS: -1 mA to +9 mA;(8)Voltage at DISABLE, LOS, TH, VREF: -0.5V to (VCC + 0.5V). If you want to know more information about the MAX3945, please download the datasheet in www.seekic.com or www.chinaicmart.com .