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XRT94L31 Datasheet(PDF) 10 Page - Exar Corporation |
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XRT94L31 Datasheet(HTML) 10 Page - Exar Corporation |
10 / 133 page XRT94L31 10 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC REV. 1.0.1 N6 TXLCLKO_P O LVPEC L Transmit STS-3/STM-1 Clock - Positive Polarity PECL Output: This output pin, along with TXLCLKO_N functions as the Transmit Clock Output signal. These output pins are typically used in High-Speed Back-Plane Applica- tions. In this case, outbound STS-3/STM-1 data is output via the TXLDATO_P/TXLDATO_N output pins upon the rising edge of this clock signal. NOTE: For APS (Automatic Protection Switching) purposes, this output pin, along with TXLCLKO_N functions as the Primary Transmit Output Clock signal. N5 TXLCLKO_N O LVPEC L Transmit STS-3/STM-1 Clock - Negative Polarity PECL Output: This output pin, along with TXLCLKO_P functions as the Transmit Clock Output signal. These output pins are typically used in High-Speed Back-Plane Applica- tions. In this case, outbound STS-3/STM-1 data is output via the TXLDATO_P/TXLDATO_N output pins upon the falling edge of this clock signal. NOTE: For APS (Automatic Protection Switching) purposes, this output pin, along with TXLCLKO_N functions as the Primary Transmit Output Clock signal. M1 TXLCLKO_R_P O LVPEC L Transmit STS-3/STM-1 Clock - Positive Polarity PECL Output - Redundant Port: This output pin, along with TXLCLKO_R_N functions as the Transmit Clock Output signal. These output pins are typically used in High-Speed Back-Plane Applica- tions. In this case, outbound STS-3/STM-1 data is output via the TXLDATO_R_P/TXLDATO_R_N output pins upon the rising edge of this clock signal. NOTE: For APS (Automatic Protection Switching) purposes, this output pin, along with TXLCLKO_R_N functions as the Redundant Transmit Output Clock signal. M2 TXLCLKO_R_N O LVPEC L Transmit STS-3/STM-1 Clock - Negative Polarity PECL Output - Redundant Port: This output pin, along with TXLCLKO_R_P functions as the Transmit Clock Output signal. These output pins are typically used in High-Speed Back-Plane Applications. In this case, outbound STS-3/STM-1 data is output via the TXLDATO_R_P/TXLDATO_R_N output pins upon the ris- ing edge of this clock signal. NOTE: For APS (Automatic Protection Switching) purposes, this output pin, along with TXLCLKO_R_P functions as the Redundant Transmit Output Clock signal. PIN DESCRIPTION OF THE XRT94L31 (REV. B) PIN # SIGNAL NAME I/O TYPE DESCRIPTION |
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