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AX88772ALF 数据表(PDF) 38 Page - ASIX Electronics Corporation |
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AX88772ALF 数据表(HTML) 38 Page - ASIX Electronics Corporation |
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38 / 45 page ![]() ASIX ELECTRONICS CORPORATION 38 AX88772A/AX88172A Low-pin-count USB 2.0 to 10/100M Fast Ethernet Controller 9.4.11 USB Transceiver Interface Timing VCC33A_H/ VCC33A_PLL= 3.0 ~ 3.6 V. Static Characteristic for Analog I/O Pins (DP/DM): Symbol Parameter Conditions Min Typ Max Unit USB 2.0 Transceiver (HS) Input Levels (Differential Receiver) VHSDIFF High speed differential input sensitivity |VI (DP) –VI (DM)| Measured at the connection as an application circuit. 300 - - mV VHSCM High speed data signaling common mode voltage range -50 - 500 mV Squelch detected - - 100 mV VHSSQ High speed squelch detection threshold No squelch detected 200 - - mV Output levels (differential) VHSOI High speed idle level output voltage -10 - 10 mV VHSOL High speed low level output voltage -10 - 10 mV VHSOH High speed high level output voltage -360 - 400 mV VCHIRPJ Chirp-J output voltage 700 - 1100 mV VCHIRPK Chirp-K output voltage -900 - -500 mV Resistance RDRV Driver output impedance Equivalent resistance used as internal chip 40.5 45 49.5 Ohm Termination VTERM Termination voltage for pull-up resistor on pin RPU 3.0 - 3.6 V USB 1.1 Transceiver (FS/LS) Input Levels (Differential Receiver) VDI Differential input sensitivity |VI (DP) –VI (DM)| 0.2 - - V VCM Differential common mode voltage 0.8 - 2.5 V Input Levels (Single-Ended Receiver) VSE Single ended receiver threshold 0.8 - 2.0 V Output levels VOL Low-level output voltage 0 - 0.3 V VOH High-level output voltage 2.8 - 3.6 V |
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