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GS2985 数据表(PDF) 8 Page - Semtech Corporation |
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GS2985 数据表(HTML) 8 Page - Semtech Corporation |
8 / 45 page GS2985 Multi-Rate SDI Reclocker with Equalization & De-emphasis Data Sheet 36663 - 5 July 2012 8 of 45 Proprietary & Confidential 33 SD/HD Output This signal will be LOW for all rates other than 270Mb/s. This signal is HIGH for 270Mb/s. 34 KBB Analog Input Controls the loop bandwidth of the PLL. Leave this pin floating for serial reclocking applications. 35 DDO1_DISABLE Logic Input Disables the DDO1/RCO and DDO1/RCO outputs when LOW. See Section 4.14. 36 DATA_MUTE Logic Input Mutes the DDO0/DDO0 and DDO1/DDO1 (if data is selected) outputs when LOW. Set HIGH for normal operation. 37 DATA/CLOCK Logic Input DATA/CLOCK select. See Section 4.14. 38, 40 DDO1/RCO, DDO1/RCO Output Differential serial clock or data outputs. 39 DE1_EN Logic Input De-emphasis on/off pin for serial digital output 1. HIGH = de-emphasis on LOW = de-emphasis off 41 VCC_DDO1 Power Most positive power supply connection for the DDO1/DDO1 output driver. Connect to 3.3V or 2.5V. 42 VEE_DDO1 Power Most negative power supply connection for the DDO1/DDO1 output driver. Connect to GND. 43 GND_DRV Power Connect to GND. 44, 46 DDO0, DDO0 Output Differential Serial Digital Outputs. 45 DE0_EN Logic Input De-emphasis on/off pin for serial digital output 0. HIGH = de-emphasis on LOW = de-emphasis off 47 VCC_DDO0 Power Most positive power supply connection for the DDO0/DDO0 output driver. Connect to 3.3V or 2.5V. 48 VEE_DDO0 Power Most negative power supply connection for the DDO0/DDO0 output driver. Connect to GND. 51 XTAL_BUF_OUT Output Buffered output of the reference oscillator. 52 XTAL+ Output Reference crystal output. 53 XTAL- Input Reference crystal input. 55 CS/EQ3_EN Input/Logic Input In host mode (HIF set LOW): Chip select input for SPI serial host interface. Active-low input. In non-host mode (HIF set HIGH): Trace equalization on/off pin for Serial Digital Differential Input 3. Active-high input. Table 1-1: GS2985 Pin Descriptions Pin Number Name Type Description |
类似零件编号 - GS2985 |
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类似说明 - GS2985 |
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