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GS1675 Arkusz danych(PDF) 5 Page - Gennum Corporation |
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GS1675 Arkusz danych(HTML) 5 Page - Gennum Corporation |
5 / 37 page GS1675 SD/HD SDI Reclocker Data Sheet 54174 - 1 June 2011 5 of 37 1.2 Pin Descriptions Table 1-1: GS1675 Pin Descriptions Pin Number Name Type Description 1 LF+ Passive Loop Filter Capacitor connection (CLF = 47nF). Connect as shown in the Typical Application Circuit on page 30. 2 CP_CAP Power External capacitor for internal LDO regulator supplying the charge pump circuit. 3, 5 DDI0, DDI0 Input Serial Digital Differential Input 0. 4HIF Logic Input Host interface selection pin. Active-low input. See Section 3.14.1. 6, 7 DDI1, DDI1 Input Serial Digital Differential Input 1. 8RSVD Reserved Reserved pin. Do not connect to this pin. 9VCC_VCOPower Most positive power supply connection for the internal VCO section. Connect to a 3.3V supply with a 422Ω resistor, or a 2.5V supply with a 267Ω resistor. 10 VEE_VCOPower Most negative power supply connection for the internal VCO section. Connect to GND. 11 VDD_1P8 Power External capacitor for internal 1.8V digital supply. 12 LOCKED Output Lock Detect status signal. HIGH when the PLL is locked. 13 LOS Output Loss Of Signal status. HIGH when the input signal is invalid. 14 VDD_DIG Power Most positive power supply connection for the digital core. Connect to 3.3V or 2.5V. 15 VSS_DIG Power Most negative power supply for the digital core. Connect to GND. 16SD/HD Output This signal will be LOW for all rates other than 270Mb/s. This signal is HIGH for 270Mb/s. 17, 18 DDO1/RCO, DDO1/RCO Output Differential serial clock or data outputs. 19 VCC_DDO1 Power Most positive power supply connection for the DDO1/DDO1 output driver. Connect to 3.3V or 2.5V. 20 VEE_DDO1 Power Most negative power supply connection for the DDO1/DDO1 output driver. Connect to GND. 21, 22 DDO0, DDO0 Output Differential Serial Digital Outputs. 23 VCC_DDO0 Power Most positive power supply connection for the DDO0/DDO0 output driver. Connect to 3.3V or 2.5V. 24 VEE_DDO0 Power Most negative power supply connection for the DDO0/DDO0 output driver. Connect to GND. 25 XTAL+ Output Reference crystal output. |
Podobny numer części - GS1675 |
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Podobny opis - GS1675 |
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