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TDP142IRNQT Datasheet(PDF) 7 Page - Texas Instruments |
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TDP142IRNQT Datasheet(HTML) 7 Page - Texas Instruments |
7 / 34 page 7 TDP142 www.ti.com SLLSEZ1A – SEPTEMBER 2017 – REVISED OCTOBER 2017 Product Folder Links: TDP142 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 6.7 AC Electrical Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DisplayPort Transmitter (OUTDP[3:0]p or OUTDP[3:0]n) VTX(DIFF-PP) Transmitter dynamic differential voltage swing range. 1500 mVPP VTX(RCV-DETECT) Amount of voltage change allowed during receiver detection 600 mV VTX(CM-AC-PP-ACTIVE) Tx AC common-mode voltage active Max mismatch from Txp + Txn for both time and amplitude 100 mVPP VTX(IDLE-DIFF-AC-PP) AC electrical idle differential peak-to- peak output voltage At package pins 0 10 mV VTX(IDLE-DIFF-DC) DC electrical idle differential output voltage At package pins after low pass filter to remove AC component 0 14 mV RTX(DIFF) Differential impedance of the driver 75 120 Ω CAC(COUPLING) AC coupling capacitor 75 265 nF RTX(CM) Common-mode impedance of the driver Measured with respect to AC ground over 0–500 mV 18 30 Ω CTX(PARASITIC) TX input capacitance for return loss At package pins, at 2.5GHz 1.25 pF RLTX(DIFF) Differential return loss 50 MHz – 1.25 GHz at 90 Ω -15 dB 2.5 GHz at 90 Ω -12 dB RLTX(CM) Common-mode return loss 50 MHz – 2.5 GHz at 90 Ω -13 dB ITX(SHORT) TX short circuit current TX± shorted to GND 67 mA VTX(DC-CM) Common-mode voltage bias in the transmitter (DC) 0 0 V AC Characteristics Crosstalk Differential crosstalk between TX and RX signal pairs at 2.5 GHz –30 dB C(P1dB-LF) Low frequency 1-dB compression point at 100 MHz, 200 mVPP < VID < 2000 mVPP 1300 mVPP C(P1dB-HF) High frequency 1-dB compression point at 2.5 GHz, 200 mVPP < VID < 2000 mVPP 1300 mVPP fLF Low frequency cutoff 200 mVPP< VID < 2000 mVPP 20 50 kHz TX output deterministic jitter 200 mVPP < VID < 2000 mVPP, PRBS7, 5 Gbps 0.05 UIpp 200 mVPP < VID < 2000 mVPP, PRBS7, 8.1 Gbps 0.08 UIpp TX output total jitter 200 mVPP < VID < 2000 mVPP, PRBS7, 5 Gbps 0.08 UIpp 200 mVPP < VID < 2000 mVPP, PRBS7, 8.1 Gbps 0.135 UIpp DisplayPort Receiver (INDP[3:0]p or INDP[3:0]n) VID(PP) Peak-to-peak input differential dynamic voltage range 2000 V VIC Input common mode voltage 0 2 V C(AC) AC coupling capacitance 75 200 nF EQ(DP) Receiver equalization DPEQ[1:0] at 4.05 GHz 14 dB dR Data rate HBR3 8.1 Gbps R(ti) Input termination resistance 80 100 120 Ω AUXp or AUXn V(AUXP_DC_CM) AUX Channel DC common mode voltage for AUXp VCC = 3.3 V 0 0.4 V V(AUXN_DC_CM) AUX Channel DC common mode voltage for AUXn VCC = 3.3 V 2.7 3.6 V |
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