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GS3281 数据表(PDF) 11 Page - Semtech Corporation |
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GS3281 数据表(HTML) 11 Page - Semtech Corporation |
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11 / 97 page  GS3281 Final Data Sheet Rev.7 PDS-061453 January 2019 11 of 97 Semtech Proprietary & Confidential www.semtech.com SDO Output Common Mode Voltage VCMOUT Single Ended — VCCO - VSDO/2 —— DDI Input Termination Differential — 100 — Ω — SDO Output Termination Between SDO and GND — 75 — Ω 3 Input Voltage - Digital Pins (CS, SDIN, SCLK, GPIO[0:1]) VIH 0.65* VDD —VDD V — VIL 0— 0.35* VDD V— Input Voltage - Digital Pins (GPIO[2:3]) VIH 0.65* VCC_CORE —VCC_CORE V — VIL 0— 0.35* VCC_CORE V— Output Voltage - Digital Pins (SDOUT, GPIO[0:1]) VOH IOH = -5mA VDD - 0.45 —— V — VOL IOL = +5mA —— 0.45 V — Output Voltage - Digital Pins (GPIO[2:3]) VOH IOH = -5mA VCC_CORE -0.45 —— V — VOL IOL = +5mA —— 0.45 V — Notes: 1. Pre-emphasis is disabled. 2. 0.94V is when trace EQ is DC coupled to upstream driver running from 1.2V supply, and 2.525V is when trace EQ is DC coupled to upstream driver running from 2.5V supply. 3. Applies to both SDO0 and SDO1. 4. The specifications provided are per symbol, not a combined value. 5. Current listed is an increase to ICC_CORE when stated condition is true. 6. Selected clock source = VCO free running. Table 2-2: DC Electrical Characteristics (Continued) TA = -40°C to +85°C, unless otherwise shown. Parameter Symbol Conditions Min Typ Max Units Notes |
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