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M02050 数据表(PDF) 1 Page - M/A-COM Technology Solutions, Inc. |
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M02050 数据表(HTML) 1 Page - M/A-COM Technology Solutions, Inc. |
1 / 2 page M02050 can support either a 3.3V or 3.3V/5V supply The M02050 is an integrated high-gain limiting amplifier. Featuring PECL outputs, the M02050 is usable in applica- tions up to 2.5 Gbps. Full output swing is achieved even at minimum input sensitivity. The M02050 operates with a 3.3V or 3.3V/5V supply. Rate select is supported for SFP applications and/or to achieve optimum sensitivity at data rates ≤ 1.25 Gbps. When rate select is high, optimum sensitivity is achieved at 2.5 Gbps. The M02050 also includes two analog RSSI outputs propor- tional to either the average or peak-to-peak input signal and a programmable signal-level detector allowing the user to set thresholds at which the logic outputs are enabled. The M02050 is pin compatible with the M02040 2.1 Gbps post amplifier. IIn np pu ut ts s The data inputs are internally connected to VTT via 50 Ω resistors, and generally need to be AC coupled. The nominal VTT voltage is 2.85V because of the internal resistor divider to VCC, which means this is the DC potential on the data inputs. See the applications information section for further details on choosing the AC-coupling capacitor. D DC C O Of ff fs se et t C Co om mp pe en ns sa at tiio on n M02050 contains an internal DC autozero circuit that can remove the effect of DC offsets without using external components. This circuit is configured such that the feed- back is effective only at frequencies well below the lowest frequency of interest. The low frequency cut off is typically 25 kHz. P PE EC CL L O Ou ut tp pu ut ts s The M02050 features 100k/300k PECL compliant outputs. The outputs may be terminated using any standard AC or DC-coupling PECL termination technique. AC-coupling is used in applications where the average DC content of the data is zero e.g. SONET. The advantage of this approach is lower power consumption, no susceptibility to DC drive and compatibility with non-PECL interfaces. L Lo os ss s o of f S Siig gn na all ((L LO OS S)) The M02050 features input signal level detection over an extended range. Using an external resistor, RST, between pin STSET and VCC, the user can program the input signal threshold. The LOS signal is active when the signal is below the threshold value. The signal detection circuitry has the equivalent of 3.5 dB (typical) electrical hysteresis. RST establishes a threshold voltage at the STSET pin. Internally, > > 4 mV maximum input sensi- tivity at 2.5 Gbps > > PECL outputs > > Rate selection for ≤ 1.25 Gbps > > Average and peak-to-peak receive power monitor outputs > > Low power (< 180 mW) > > 16 pin 3x3 QFN, standard/green package > > K K E E Y Y F F E E A A T T U U R R E E S S Limiting Amplifier for Applications up to 2.5 Gbps M02050 |
类似零件编号 - M02050 |
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类似说明 - M02050 |
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