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S1T8825B Datasheet(PDF) 3 Page - Samsung semiconductor |
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S1T8825B Datasheet(HTML) 3 Page - Samsung semiconductor |
3 / 16 page 1.3GHZ DUAL PLL S1T8825B 3 PIN DESCRIPTION ABSOLUTE MAXIMUM RATINGS Pin No. Symbol I/O Description 1 Fin1 I Input terminal of channel 1 RF signal. 2, 15 Vcc − Power supply voltage input. PIN2 and PIN15 are connected together. 3 CP1 O Output terminal of channel 1 charge pump. Charge pump is constant current output circuit, and output current is selected by input serial data. 4, 13 GND − Terminal of GND. PIN4 and PIN13 are connected together. 5 LD O Output terminal of lock detection. It is the open drain output. 6 CK I Input terminal of clock. 7 DATA I Input terminal of data. 8 EN I Input terminal of enable signal. 9 BO O Output terminal of buffer amplifier. The signal of local oscillation is output through the buffer amplifier. 10 OSCO O Output terminal of local oscillation signal. 11 OSCI I Input terminal of local oscillation signal. In case of external input, connecting it to this terminal. 12 SW O Switch-over terminal for the time constant of loop filter. It is an open drain output. If you don’t switch the time constant of loop filter, general output is available. 14 CP2 O Output terminal of channel 2 charge pump. Charge pump is a constant current output circuit, and the output current is selected by input serial data. 16 Fin2 I Input terminal of channel 2 RF signal. Characteristic Symbol Value Unit Power Supply Voltage Vcc 6 V Power Dissipation PD 600 mW Operating temperature TOPR −30 to + 85 °C Storage temperature TSTG −55 to +150 °C Take care ! ESD sensitive device |
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