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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ML4658CP датащи(PDF) 5 Page - Micro Linear Corporation |
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ML4658CP датащи(HTML) 5 Page - Micro Linear Corporation |
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5 / 17 page  ML4658 5 ELECTRICAL CHARACTERISTICS (Continued) AC ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER MIN TYP MAX UNITS Transmit tTXNPW Transmit Turn-On Pulse Width 20 ns tTXFPW Transmit Turn-Off Pulse Width 180 ns tTXLP Transmit Loopback Startup Delay 200 ns tTXODY Tranmitter Turn-On Delay 200 ns tTXSDY Transmit Steady State Prop. Delay 15 100 ns tTXJ Transmitter Jitter ±2 ±3.5 ns Receive tRXODY Receive Turn-On Delay if Transmit is Idle 420 500 ns tRXTDY Receive Turn-On Delay if Tranmit is Active 650 800 ns tRXFX Last Bit Received to Start Slow Decay Output 230 800 ns tRXSDY Receive Steady State Prop. Delay 15 100 ns tRXJ Receiver Jitter ±0.7 ±1.5 ns tAR Differential Output Rise Time 20% to 80% (Rx±, COL±) 3 ns tAF Differential Output Fall Time 20% to 80% (Rx±, COL±) 3 ns Collision tCPSQE Collision Present to SQE Assert 0 900 ns tTXRX Time for Loopback to swtich from Tx to RxTP during a collision 0 900 ns tSQEXR Time for SQE to deactivate given that RxTP goes idle and TxTP continues 0 900 ns tSQEXT Time for SQE to deactivate given that TxTP goes idle and RxTP continues 0 900 ns tCLF Collision Frequency 8.5 10 11.5 MHz tCLPDC Collision Pulse Duty Cycle 40 50 60 % tSQEDY SQE Test Delay (Tx Inactive to SQE) 0.6 1.1 1.6 µs tSQETD SQE Test Duration 0.5 1.0 1.5 µs Jabber, Link Test 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 tLLT Link Loss Time 50 95 150 ms tLTN Link Test Pulse Receive Minimum Time 2 4.2 7 ms tLTX Link Test Pulse Receive Maximum Time 25 70 150 ms tTLP Link Test Pulse Repetition Rate 8 16 24 ms tLTPW Link Test Pulse Width 85 100 200 ns tLEDT XMT, RCV, CLSN On Time 30 100 300 ms |
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