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XRT83SL34 Datasheet(PDF) 9 Page - Exar Corporation |
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XRT83SL34 Datasheet(HTML) 9 Page - Exar Corporation |
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9 / 80 page  XRT83SL34 QUAD T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR PRELIMINARY REV. P1.0.8 6 TRANSMITTER SECTIONS SIGNAL NAME PIN #TYPE DESCRIPTION TCLKE µPTS2 107 I Transmit Clock Edge - Hardware Mode With this pin set to a "High", transmit input data of all channels are sampled at the rising edge of TCLK_n. With this pin tied "Low", input data are sampled at the falling edge of TCLK_n. Microprocessor Type Select Input pin 2 - Host Mode This pin along with µPTS1 (pin 106) selects the microprocessor type. See “Microprocessor Type Select Input Pins - Host Mode:” on page 9. NOTE: This pin is internally pulled "Low" with a 50k Ω resistor. TTIP_0 TTIP_1 TTIP_2 TTIP_3 13 19 84 90 O Transmitter Tip Output for Channel _0 Positive differential transmit output to the line. Transmitter Tip Output for Channel _1 Transmitter Tip Output for Channel _2 Transmitter Tip Output for Channel _3 TRING_0 TRING_1 TRING_2 TRING_3 15 17 86 88 O Transmitter Ring Output for Channel _0 Negative differential transmit output to the line. Transmitter Ring Output for Channel _1 Transmitter Ring Output for Channel _2 Transmitter Ring Output for Channel _3 TPOS_0 TDATA_0 TPOS_1 TDATA_1 TPOS_2 TDATA_2 TPOS_3 TDATA_3 2 127 104 101 I Transmitter Positive Data Input for Channel _0 - Dual-rail mode This signal is the positive-rail input data for transmitter 0. Transmitter 0 Data Input - Single-Rail mode This pin is used as the NRZ input data for transmitter 0. Transmitter Positive Data Input for Channel _1 Transmitter 1 Data Input Transmitter Positive Data Input for Channel _2 Transmitter 2 Data Input Transmitter Positive Data Input for Channel _3 Transmitter 3 Data Input NOTE: Internally pulled “Low” with a 50k Ω resistor for each channels. TNEG_0 CODES_0 TNEG_1 CODES_1 TNEG_2 CODES_2 TNEG_3 CODES_3 3 126 105 100 I Transmitter Negative NRZ Data Input for Channel _0 Dual-Rail mode This signal is the negative-rail input data for transmitter 0. Single-Rail mode This pin can be left unconnected. Coding Select for Channel _0 - Hardware mode and Single-Rail mode Connecting this pin "Low" enables HDB3 in E1 or B8ZS in T1 encoding and decoding for Channel _0. Connecting this pin "High" selects AMI data format. Transmitter Negative NRZ Data Input for Channel _1 Coding Select for Channel _1 Transmitter Negative NRZ Data Input for Channel _2 Coding Select for Channel _2 Transmitter Negative NRZ Data Input for Channel _3 Coding Select for Channel _3 NOTE: Internally pulled “Low” with a 50k Ω resistor for channel _n |
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