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RNQ0040A Datasheet(PDF) 7 Page - Texas Instruments |
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RNQ0040A Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 47 page  7 TUSB546A-DCI www.ti.com SLLSF14 – JUNE 2017 Product Folder Links: TUSB546A-DCI 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 USB Gen 1 Differential Receiver (RX1P/N, RX2P/N, SSTXP/N) V(RX-DIFF-PP) Input differential peak-peak voltage swing linear dynamic range AC-coupled differential peak-to-peak signal measured post CTLE through a reference channel 2000 mVpp V(RX-DC-CM) Common-mode voltage bias in the receiver (DC) 0 V R(RX-DIFF-DC) Differential input impedance (DC) Present after a GEN1 device is detected on TXP/TXN 72 120 Ω R(RX-CM-DC) Receiver DC common mode impedance Present after a GEN1 device is detected on TXP/TXN 18 30 Ω Z(RX-HIGH-IMP-DC-POS) Common-mode input impedance with termination disabled (DC) Present when no GEN1 device is detected on TXP/TXN. Measured over the range of 0-500mV with respect to GND. 25 kΩ V(SIGNAL-DET-DIFF-PP) Input differential peak-to-peak signal detect assert level At 5 Gbps, no input loss, PRBS7 pattern 80 mV V(RX-IDLE-DET-DIFF-PP) Input differential peak-to-peak signal detect de-assert Level At 5 Gbps, no input loss, PRBS7 pattern 60 mV V(RX-LFPS-DET-DIFF-PP) Low frequency periodic signaling (LFPS) detect threshold Below the minimum is squelched 100 300 mV V(RX-CM-AC-P) Peak RX AC common-mode voltage Measured at package pin 150 mV C(RX) RX input capacitance to GND At 2.5 GHz 0.5 1 pF RL(RX-DIFF) Differential return Loss 50 MHz – 1.25 GHz at 90 Ω –19 dB 2.5 GHz at 90 Ω –14 dB RL(RX-CM) Common-mode return loss 50 MHz – 2.5 GHz at 90 Ω –13 dB EQ(SSP) Receiver equalization SSEQ[1:0] and EQ[1:0] at 2.5 GHz 11 dB USB Gen 1 Differential Transmitter (TX1P/N, TX2P/N, SSRXP/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-IDLE-DELTA) Transmitter idle common-mode voltage change while in U2/U3 and not actively transmitting LFPS –600 600 mV VTX(DC-CM) Common-mode voltage bias in the transmitter (DC) 1.75 V 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 VTX(CM-DC-ACTIVE-IDLE- DELTA) Absolute DC common-mode voltage between U1 and U0 At package pin 200 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 ITX(SHORT) TX short circuit current TXP/N shorted to GND 67 mA 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 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 |
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Similar Description - RNQ0040A |
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