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ML4667CQ Fiches technique(PDF) 5 Page - Micro Linear Corporation |
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ML4667CQ Fiches technique(HTML) 5 Page - Micro Linear Corporation |
5 / 12 page 5 ML4667 AC ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER MIN TYP MAX UNITS TRANSMIT FTXIDF Transmit Idle Frequency 0.85 1.25 MHz PTXDC Transmit Idle Duty Cycle 45 55 % tTXNPW Transmit Turn-On Pulse Width 20 ns tTXODY Transmit Turn-On Delay 200 ns tTXLP Transmit loopback Start up Delay 500 ns tTXFPW Transmit Turn Off Pulse Width 180 ns tTXSOI Transmit Start of Idle 400 2100 ns tTXSDY Transmit Steady State Propagation Delay 15 50 ns tTXJ Transmit Jitter into 31 Ω Load ±1.5 ns RECEIVE FRXSFT Receive Squelch Frequency Threshold 2.51 4.5 MHz tRXODY Receive Turn-On Delay 270 ns tRXFX Last Bit Received to Slow Decay Output 230 300 ns tRXSDY Receive Steady State Propagation Delay 15 50 ns tRXJ Receive Jitter ±1.5 ns tAR Differential Output Rise Time 20% to 80% (Rx ±, COL±)4 ns tAF Differential Output Fall Time 20% to 80% (Rx ±, COL±)4 ns COLLISION tCPSQE Collision Present to SQE Assert 0 350 ns tSQEXR Time for SQE to Deactivate After Collision 0 700 ns FCLF Collision Frequency 8.5 11.5 MHz PCLPDC Collision Pulse Duty Cycle 40 50 60 % tSQEDY SQE Test Delay (Tx Inactive to SQE) 0.6 1.6 µs tSQETD SQE Test Duration 0.5 1.0 1.5 µs JABBER AND LED TIMING tJAD Jabber Activation Delay 20 70 150 ms tJRT Jabber Reset Unjab Time 250 450 750 ms tJSQE Delay from Outputs Disabled to Collision Oscillator On 100 ns tLED RCV, CLSN, XMT On Time 8 16 32 ms tLLPH Low Light Present to LMON High 3 5 10 µs tLLCL Low Light Present to LMON Low 250 750 ms Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions. Note 2: This does not include the current from the AUI pull-down resistors, or LED status outputs. Note 3: LED drivers can sink up to 20mA, but VOL will be higher. Note 4: Does not include prebias current for fiber optic LED which would typically be 3mA. |
Numéro de pièce similaire - ML4667CQ |
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Description similaire - ML4667CQ |
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