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GS3590 Datasheet(PDF) 7 Page - Semtech Corporation |
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GS3590 Datasheet(HTML) 7 Page - Semtech Corporation |
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7 / 118 page  GS3590 Final Data Sheet Rev.4 PDS-061414 September 2017 7 of 118 Semtech Proprietary & Confidential www.semtech.com 17 GPIO0 Digital Input/Output Multi-function Control/Status Input/Output 0. Default function: Direction = Output Signal = High indicates LOS (Loss of Signal, inverse of Carrier Detect) Pin is 1.8V CMOS I/O, please refer to GPIO0_CFG for more information on how to configure GPIO0. 18 GPIO1 Digital Input/Output Multi-function Control/Status Input/Output 1. Default function: Direction = Output Signal = High indicates PLL is locked Pin is 1.8V CMOS I/O, please refer to GPIO1_CFG for more information on how to configure GPIO1. 19, 31, 37, 38 VEE_CORE Power Most negative power supply connection for the analogue core. Connect to ground. 20 VCCO1P8_1 Power Most positive power supply connection for Trace Driver pre-driver. Connect to 1.8V. 21, 28 VEEO Power Most negative power supply connection for the output drivers. Connect to ground. 22, 23 DDO, DDO Output Differential CML output with two internal 50Ω pull-ups. In cable equalizer mode, the data signal or PRBS Generator can be selected for this output. 24 VCCO_1 Power Most positive power supply connection for the DDO/ DDO output driver. Connect to 1.2V – 2.5V. 25 VCCO_0 Power Most positive power supply connection for the SDIO/SDO output driver. Connect to 2.5V. 26 SDO Output Single-ended CML output buffer with internal 75Ω pull-up. Decouple to ground (see Section 6.1 Typical Application Circuit for recommended values). 27 SDIO Output Single-ended bidirectional CML buffer with internal 75Ω pull-up. In cable driver mode, the data signal or PRBS Generator can be selected for this output. 29 VCCO1P8_0 Power Most positive power supply connection for Cable Driver pre-driver. Connect to 1.8V. 30 LOOP_OUT Output Single-ended CML output. Connect to LOOP_IN (pin 2) through a capacitor (see Section 6.1 Typical Application Circuit for recommended values). Table 1-1: GS3590 Pin Descriptions (Continued) Pin Number Name Type Description |
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