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ANALOG DEVICES MAX3945ETE+T

Limiting Amplifier, 9 GHz, 2.85 V, 3.63 V, TQFN-EP, 16 Pins, Surface Mount

ANALOG DEVICES MAX3945ETE+T
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Manufacturer Part No:
MAX3945ETE+T
Order Code:
2514496
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Technical Datasheet:
MAX3945ETE+T   Datasheet
ECAD / MCAD
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Product Overview

The MAX3945ETE+T is a 1.0625Gbps to 11.3Gbps, SFP+ dual path limiting amplifier in 16 pin TQFN package. This 3.3V, multirate, low power limiting amplifier is optimized for fibre channel and Ethernet transmission systems at data rates up to 11.3Gbps. The high sensitivity limiting amplifier limits signal generated by transimpedance amplifier into CML level differential output signal. All differential inputs and outputs are optimally back terminated for 50ohm transmission line PCB design. It has programmable filtering to optimize sensitivity for different data rates and to suppress relaxation oscillations that could occur in some optical systems. The MAX3945 incorporates two loss of signal (LOS) circuits and programmable time mask for LOS output. A 3-wire digital interface reduces pin count and enables control of LOS threshold, LOS polarity, LOS mode, CML output level, input offset correction, receive (Rx) polarity, Rx input filter and Rx deemphasis without need for external components.
  • 2.85V to 3.63V power supply voltage range and 46.6mA power supply current (LOS1
  • EN=1, LOS2
  • EN=0)
  • Operating temperature range from -40°C to 85°C
  • Small signal bandwidth (simulated value) of 9GHz at RATE
  • SEL = 1
  • Enables single module design compliance with 1000BASE-SX/LX and 10GBASE-SR/LR specifications
  • -25.3dBm optical sensitivity at 1.25Gbps using 10.32Gbps ROSA
  • Selectable 1GHz/2.1GHz/2.5GHz/3GHz input filters at RATE
  • SEL = 0 setting
  • Supports SFF-8431 SFP+ MSA and SFF-8472 digital diagnostic
  • Total power dissipation of 130mW at 3.3V power supply with RSSI monitor based LOS
  • Total power dissipation of 154mW at 3.3V power supply with Rx input based LOS
  • CML output with level adjustment and squelch mode

Applications

Communications & Networking

Product Information

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:
9GHz

:
2.85V

:
3.63V

:
16Pins

:
-40°C

:
85°C

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Technical Documents (2)

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