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XRT82D20 Datasheet(PDF) 6 Page - Exar Corporation |
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XRT82D20 Datasheet(HTML) 6 Page - Exar Corporation |
6 / 24 page XRT82D20 5 SINGLE CHANNEL E1 LINE INTERFACE UNIT REV. 1.0.8 22 TTIP O Transmitter TIP Output: Positive bipolar data output to the line. 23 TxLEV I Transmit Level: Tie this pin high for 120 Ω twisted pair cable operation and tie it low for 75 Ω coaxial cable operation (internal pull-down). This pin is only active for 5.0V operation. 24 AVDD - Analog Positive Supply 5.0 V + 5% or 3.3 V+ 5% 25 AGND - Analog Supply Ground 26 MuteRx I Mute Receive Output: With this pin tied high, a loss of receive input signal (RLOS=0) will cause ClkLOS to go low and generate the following. Dual-rail mode operation: With DIGI = 0, RClk = 1, RPOS and RNEG/RData = 0 fWith DIGI = 1, RClk =0, RPOS and RNEG/RData = 1 Single-rail mode: RClk = 1 and RData=0 (internal pull-down) 27 RRing I Receive Bipolar Negative Input: Bipolar line signal input to the receiver. 28 RTIP I Receiver Bipolar Positive Input: Bipolar line signal input to the receiver. PIN #SYMBOL TYPE DESCRIPTION |
Similar Part No. - XRT82D20_06 |
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Similar Description - XRT82D20_06 |
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